The 2027 tax season brings a familiar rhythm of deadlines, but with a few calendar quirks you’ll want to note. Most significantly, June 15 falls on a Sunday in 2027, pushing the Q2 estimated tax deadline to June 16—a small shift that catches some taxpayers off guard every time it happens.
Whether you’re an employee with straightforward W-2 income, a freelancer juggling quarterly payments, or a business owner managing multiple filing obligations, missing a tax deadline can cost you real money. The IRS charges a failure-to-file penalty of 5% per month (up to 25%) and a failure-to-pay penalty of 0.5% per month, plus interest that compounds daily. On a $10,000 tax bill, filing just two months late without paying costs you over $1,100 in penalties alone.
This calendar walks through every significant deadline in 2027, with specific guidance on who needs to act and what happens if you don’t.
2027 Tax Calendar At-a-Glance
Before diving into the details, here’s your year at a glance. Print this table or bookmark this page—these are the dates that matter most.
| Deadline | Date | What’s Due |
|---|---|---|
| Q4 2026 Estimated Tax | January 15, 2027 | 4th quarter estimated payment for 2026 |
| W-2s and 1099s | January 31, 2027 | Forms sent to recipients and filed with IRS |
| Partnership/S-Corp Returns | March 15, 2027 | Form 1065 and Form 1120-S for 2026 |
| Tax Filing Deadline | April 15, 2027 | Individual 2026 federal return |
| Q1 2027 Estimated Tax | April 15, 2027 | 1st quarter estimated payment for 2027 |
| IRA Contribution Deadline | April 15, 2027 | Last day to contribute for 2026 |
| Q2 2027 Estimated Tax | June 16, 2027 | 2nd quarter estimated payment |
| Q3 2027 Estimated Tax | September 15, 2027 | 3rd quarter estimated payment |
| Partnership/S-Corp Extended | September 15, 2027 | Extended deadline for pass-throughs |
| Extended Return Deadline | October 15, 2027 | Individual returns with extensions |
| Q4 2027 Estimated Tax | January 15, 2028 | 4th quarter estimated payment |
The IRS sets these deadlines years in advance, but they can shift when dates fall on weekends or federal holidays. In 2027, most major deadlines land on weekdays, with the notable exception of the Q2 estimated payment mentioned above.
January 2027 Deadlines
January kicks off the tax season with two critical deadlines that affect different groups of taxpayers. The month starts quietly but ends with a flurry of activity as employers and businesses rush to meet the January 31 information reporting deadline.
January 15, 2027: Estimated Tax Payments
The first deadline of the year catches many self-employed taxpayers off guard, especially those still recovering from the holiday season. If you’ve been making quarterly estimated tax payments throughout 2026, your fourth and final payment for the year is due on January 15, 2027.
| What’s Due | Who It Affects |
|---|---|
| Q4 2026 estimated tax payment | Self-employed, gig workers, investors |
| Farmers/fishers annual estimated tax | If not paying quarterly |
The January 15 workaround: Here’s something many taxpayers don’t realize—you can skip this payment entirely if you file your complete 2026 tax return and pay any balance due by January 31, 2027. This requires having all your documents ready very early, which isn’t practical for most people, but it’s a legitimate option if you’re organized.
For farmers and fishermen who earn at least two-thirds of their gross income from farming or fishing, the rules are more generous. You can pay your entire estimated tax obligation for 2026 in a single payment by January 15, 2027, or skip estimated payments altogether if you file your return and pay all tax due by March 1, 2027.
January 31, 2027: Information Returns
January 31 is one of the busiest deadlines of the year, but the pressure falls on employers and businesses—not individual taxpayers. By this date, every employer in the country must have W-2s in the hands of their employees and filed with the Social Security Administration.
| Form | Purpose | Sent To |
|---|---|---|
| W-2 | Wage and tax statement | Employees and SSA |
| 1099-NEC | Nonemployee compensation | Contractors and IRS |
| 1099-K | Payment card/third party network | Recipients and IRS |
| Form 940 | Annual FUTA tax return | IRS |
Why this matters to you: If you’re waiting on tax documents to file your return, most of them should arrive by early February. The January 31 deadline means employers face stiff penalties for late W-2s—$60 per form if corrected within 30 days, jumping to $310 per form if they miss the deadline entirely. That pressure keeps most employers compliant.
If you haven’t received your W-2 by mid-February, contact your employer’s payroll department first. If you still can’t get it by February 15, you can call the IRS at 1-800-829-1040 and file your return using Form 4852, a substitute W-2 based on your best estimates.
February 2027 Deadlines
February is relatively quiet for individual taxpayers—the calm before the March and April storm. The main deadlines this month affect businesses filing information returns on paper, which is increasingly rare as electronic filing becomes the standard.
February 28, 2027: Paper Information Returns
If your business still files information returns on paper (which the IRS strongly discourages), several forms are due to the IRS by February 28.
| Form | Purpose |
|---|---|
| 1099-MISC | Miscellaneous income (to IRS, paper) |
| 1099-B | Proceeds from broker transactions |
| 1099-S | Real estate transactions |
| 1099-DIV | Dividends and distributions |
| 1099-INT | Interest income |
The e-filing advantage: Businesses that file electronically get an extra month—their deadline is March 31. Given that e-filing is also more accurate and provides confirmation of receipt, there’s little reason to file on paper unless you’re issuing fewer than 10 forms and prefer the simplicity.
For individual taxpayers, February is the time to gather documents, reconcile records, and start thinking about your return. Most of your key documents—W-2s, 1099s, and other information returns—should arrive by mid-February.
March 2027 Deadlines
March shifts the focus to business owners. If you run a partnership or S corporation, this month brings the year’s first major filing deadline—and it’s one of the most penalty-prone dates on the calendar.
March 1, 2027: SIMPLE IRA and Farmer/Fisher Deadlines
Two specialized deadlines fall on March 1, affecting small business owners with SIMPLE retirement plans and agricultural taxpayers.
| What’s Due | Who It Affects |
|---|---|
| SIMPLE IRA employer contributions | Employers with SIMPLE plans |
| Farmers/fishers annual return | If didn’t pay January 15 estimate |
For SIMPLE IRA plans, the March 1 deadline applies to employer matching or nonelective contributions for the 2026 plan year. Employee salary deferrals should have been deposited much earlier—generally within 7 business days of being withheld from paychecks.
March 15, 2027: Partnership and S-Corp Returns
This is one of the most consequential deadlines of the year, and the penalties for missing it are surprisingly harsh. Unlike individual returns where the penalty is based on unpaid taxes, partnership and S-corp late filing penalties are assessed per-shareholder or per-partner, per month.
| Entity Type | Form | What’s Due |
|---|---|---|
| Partnerships | Form 1065 | 2026 partnership return |
| S Corporations | Form 1120-S | 2026 S-corp return |
| Both entities | Schedule K-1 | Issue to partners/shareholders |
Why the penalty is so painful: The late filing penalty for partnerships and S-corps is currently $235 per shareholder or partner, per month (or partial month), for up to 12 months. A simple two-person LLC that’s three months late faces a penalty of $1,410 ($235 × 2 partners × 3 months). A five-person S-corp that misses the deadline by four months owes $4,700.
The K-1 problem: These returns are due early specifically so that partners and shareholders receive their Schedule K-1s in time to file their personal returns by April 15. If you’re waiting on a K-1 from a partnership or S-corp that filed late, you may need to file an extension for your personal return—through no fault of your own.
Extension option: File Form 7004 by March 15 for an automatic 6-month extension, moving your deadline to September 15, 2027. This also extends the K-1 deadline, which is why so many individual taxpayers who invest in partnerships end up filing extensions.
March 31, 2027: Electronic Information Returns
The electronic filing deadline for most 1099 forms provides businesses an extra month beyond the paper deadline.
| Form | Purpose |
|---|---|
| 1099-MISC | Miscellaneous income (to IRS, electronic) |
| 1099-B | Proceeds from broker transactions |
| All other 1099s | Electronic filing deadline |
Note that 1099-NEC (for contractor payments) had an earlier deadline of January 31—it doesn’t get the March 31 extension because Congress specifically moved it up to combat fraud.
April 2027 Deadlines
April 15 is tax day—the deadline that affects more Americans than any other date on the tax calendar. In 2027, April 15 falls on a Wednesday, so there are no weekend or holiday adjustments to worry about.
But April 15 isn’t just about filing your tax return. It’s actually a convergence of multiple deadlines that require different actions, and missing any of them carries consequences.
April 15, 2027: The Big Day
Here’s what’s actually due on April 15—it’s more than most people realize:
| What’s Due | Who It Affects |
|---|---|
| Individual tax returns (Form 1040) | All individual filers |
| C Corporation returns (Form 1120) | Calendar-year C-corps |
| Trust and estate returns (Form 1041) | Trusts and estates |
| Q1 2027 estimated tax payment | Self-employed, gig workers |
| IRA contribution deadline for 2026 | Traditional and Roth IRA savers |
| SEP IRA contribution for 2026 | Self-employed (without extension) |
| HSA contribution for 2026 | HSA account holders |
| Gift tax return (Form 709) | Those who gave > $18,000 per recipient |
The IRA deadline trap: Many people don’t realize that April 15 is their last chance to make IRA contributions for the previous tax year. If you haven’t maxed out your 2026 IRA contributions, you have until April 15, 2027 to do so—regardless of whether you file your tax return or request an extension.
This is particularly valuable for Traditional IRA contributions, which may be tax-deductible. Making a $7,000 contribution (or $8,000 if you’re 50+) by April 15 could lower your 2026 tax bill, even if you’re filing an extension.
HSA contributions work the same way: If you had an HSA-eligible health plan in 2026, you can contribute up to the annual limit ($4,300 for self-only coverage, $8,550 for family coverage, plus $1,000 catch-up if 55+) by April 15, 2027—giving you a last-minute above-the-line deduction.
Understanding Tax Extensions vs. Payment Requirements
| Item | Deadline | Extension To |
|---|---|---|
| File extension | April 15, 2027 | October 15, 2027 |
| Pay estimated tax | April 15, 2027 | Still due April 15 |
This is where many taxpayers get tripped up: an extension to file is NOT an extension to pay. If you request an extension, you get six more months to submit your paperwork. But you’re still required to estimate and pay any taxes you owe by April 15.
The practical implication: If you owe money and file an extension without paying, you’ll face interest and the 0.5% per month late payment penalty on the unpaid balance—even though your return isn’t officially “late.”
The math on extensions: Let’s say you estimate you owe $5,000 but don’t pay anything with your extension. By the time you file in October (6 months later), you’ll owe roughly $150 in late payment penalties plus about $200 in interest. That’s $350 extra just for not paying on time, despite filing a valid extension.
April 30, 2027: Quarterly Payroll
| What’s Due | Who It Affects |
|---|---|
| Form 941 (Q1 2027) | Employers filing quarterly payroll |
Employers with employees (as opposed to only contractors) must file quarterly payroll tax returns. Form 941 reports wages paid, federal income tax withheld, and Social Security and Medicare taxes for the quarter.
May 2027 Deadlines
May brings deadline relief for residents of a handful of states with later filing requirements.
May 2027 State Deadlines
| What’s Due | Who It Affects |
|---|---|
| Delaware individual returns | Delaware residents (April 30) |
| Virginia individual returns | Virginia residents (May 1) |
| Louisiana individual returns | Louisiana residents (May 15) |
These extended state deadlines exist for various historical and administrative reasons, but they don’t change your federal deadline. If you live in one of these states, you still need to file your federal return (or extension) by April 15.
June 2027 Deadlines
June brings the second estimated tax payment of the year, with a calendar quirk that catches some taxpayers by surprise.
June 16, 2027: Q2 Estimated Tax (Note the Date)
In most years, the Q2 estimated tax payment is due June 15. But in 2027, June 15 falls on a Sunday, so the deadline shifts to the next business day: Monday, June 16, 2027.
| What’s Due | Who It Affects |
|---|---|
| Q2 2027 estimated tax payment | Self-employed, gig workers |
| U.S. citizens abroad auto-extension | Expats living abroad |
The quarterly payment trap: Notice something odd about the estimated tax payment schedule? Q2 covers April and May income—just two months—while Q3 covers three months (June, July, August). This uneven schedule trips up many first-time estimated tax payers who assume each quarter is three months.
The practical result: Your Q2 payment might be lower than Q3, depending on when your income arrives. If you’re just dividing your annual estimated tax by four and paying equal amounts, this doesn’t matter. But if you’re using the annualized income method to match payments to income, the uneven quarters become important.
U.S. Taxpayers Living Abroad
U.S. citizens and resident aliens living outside the United States get an automatic 2-month extension to file their returns, moving their deadline from April 15 to June 15 (or June 16 in 2027). This applies if your tax home is outside the U.S. and Puerto Rico, or if you’re in military or naval service outside the U.S. and Puerto Rico on the regular due date.
No form is required for this automatic extension—just attach a statement to your return explaining that you qualified for the automatic extension.
Important distinction: This automatic extension is an extension to file, not an extension to pay. If you owe taxes, interest will accrue from April 15, even though your filing deadline is extended. If you need even more time beyond June 15, you can request an additional extension to October 15 by filing Form 4868.
July 2027 Deadlines
July is one of the quieter months on the tax calendar, with deadlines primarily affecting employers and retirement plan administrators.
July 31, 2027: Employer and Plan Deadlines
| What’s Due | Who It Affects |
|---|---|
| Form 941 (Q2 2027) | Employers filing quarterly payroll |
| Form 5500 | Employee benefit plan annual returns |
The Form 5500 deadline: If your business sponsors a retirement plan (401(k), pension, profit-sharing) with more than 100 participants, you must file Form 5500 with the Department of Labor by July 31. Smaller plans filing Form 5500-SF have the same deadline. Extensions are available by filing Form 5558, which grants an additional 2.5 months.
Missing the Form 5500 deadline is expensive: the DOL penalty is up to $250 per day, with no maximum. The IRS can also assess separate penalties of $250 per day, up to $150,000. This is one deadline where the penalties dramatically outweigh any benefit of procrastination.
September 2027 Deadlines
September is the second busiest month of the tax year, bringing the extended deadline for pass-through business returns and the third estimated tax payment.
September 15, 2027: Multiple Deadlines Converge
| What’s Due | Who It Affects |
|---|---|
| Q3 2027 estimated tax payment | Self-employed, gig workers |
| Partnership extended returns | Partnerships that filed Form 7004 |
| S Corporation extended returns | S-corps that filed Form 7004 |
| SEP IRA contribution (extended) | Self-employed with extended return |
| SIMPLE IRA establishment | For use in 2027 tax year |
The K-1 cascade effect: When partnerships and S-corps file their extended returns on September 15, they finally issue K-1s to their partners and shareholders. This triggers a last-minute scramble for individual taxpayers who’ve been waiting to complete their personal returns. If you’re one of them, you have exactly 30 days to incorporate that K-1 into your return before the October 15 extended filing deadline.
SEP IRA opportunity: Self-employed taxpayers who filed an extension have until September 15 (their business return deadline) to establish and fund a SEP IRA for the 2026 tax year. This is one of the few situations where a tax extension actually creates additional planning flexibility. A SEP IRA contribution can be up to 25% of net self-employment earnings, to a maximum of $69,000 (for 2026), providing a substantial deduction.
Setting up a SIMPLE IRA for 2027: If you want to establish a SIMPLE IRA for your business for the 2027 tax year, September 15, 2027 is the deadline to set it up. The plan must be established by October 1, but the practical deadline is September 15 because you need time for setup before the October 1 statutory deadline.
October 2027 Deadlines
October is the final extended deadline month, bringing relief—or reckoning—for the millions of taxpayers who filed extensions back in April.
October 15, 2027: The Extended Returns Finish Line
| What’s Due | Who It Affects |
|---|---|
| Extended individual returns | Filers who submitted Form 4868 |
| Extended C Corporation returns | C-corps that filed Form 7004 |
| Extended trust/estate returns | Trusts/estates that filed extensions |
| SEP IRA contribution (if extended) | Self-employed with extended return |
| FBAR (FinCEN 114) | Foreign bank account reports |
| Roth IRA recharacterization | Converting back from Roth |
The October 15 reality check: According to IRS data, roughly 19 million taxpayers file extensions each year. If you’re one of them, October 15 is your hard deadline—there’s no further extension available for individual returns. Miss this deadline and you’ll face the 5% per month failure-to-file penalty on top of any interest and late payment penalties already accruing.
SEP IRA final chance: If you filed extensions for both your business and personal returns, October 15 is your last opportunity to establish and fund a SEP IRA for the prior tax year. This extended timeline makes SEP IRAs particularly attractive for self-employed taxpayers who need more time to determine their final income and calculate the maximum contribution.
FBAR deadline: The Foreign Bank Account Report (FBAR, FinCEN Form 114) is technically due April 15, but there’s an automatic extension to October 15 with no form required. If you had foreign financial accounts exceeding $10,000 in aggregate at any time during the year, you must file FBAR electronically through the BSA E-Filing System. Unlike tax returns, FBAR goes to the Treasury Department, not the IRS, and the penalties for non-compliance are severe: up to $12,500 for non-willful violations, and $100,000 or 50% of account balance for willful violations.
Roth recharacterization eliminated for conversions: Note that while you can still recharacterize a Roth IRA contribution back to a traditional IRA (or vice versa) until October 15, tax law changes eliminated the ability to recharacterize a Roth conversion. Once you convert traditional IRA or 401(k) funds to a Roth, it’s permanent.
October 31, 2027: Quarterly Payroll
| What’s Due | Who It Affects |
|---|---|
| Form 941 (Q3 2027) | Employers filing quarterly payroll |
November-December 2027 Deadlines
The final months of the year are less about filing deadlines and more about taking actions that must be completed by December 31 to count for the 2027 tax year.
December 31, 2027: Year-End Planning Deadlines
| What’s Due | Action Required |
|---|---|
| 401(k)/403(b) contributions | Last day for 2027 salary deferrals |
| Required Minimum Distributions (RMDs) | For those 73+ with retirement accounts |
| Charitable contributions | For 2027 tax deduction |
| Tax-loss harvesting | Sell losing investments before year-end |
| FSA spending | Use 2027 FSA funds (check plan rules) |
| Roth conversions | Complete conversions for 2027 |
The 401(k) deadline trap: Unlike IRA contributions (which you have until April 15 of the following year to make), 401(k) and 403(b) contributions must be made through payroll deductions by December 31. This means your last paycheck of the year is your final opportunity to maximize your 2027 contributions. If you want to hit the $23,000 limit (or $30,500 if you’re 50+), you need to plan your contribution rate earlier in the year.
RMD penalty reduction: If you’re 73 or older and must take Required Minimum Distributions, mark December 31 carefully. The penalty for missing an RMD used to be a crushing 50% of the amount you should have withdrawn. SECURE 2.0 reduced this to 25%, or even 10% if you correct the mistake within two years. Still, on a $10,000 RMD, that’s a $2,500 or $1,000 penalty—easily avoided by simply taking the distribution on time.
Charitable contribution timing: Cash donations must be made by December 31 to deduct in 2027. For credit card donations, the date the charge is made counts (not when you pay the bill). For stock donations, the effective date depends on how you transfer—allow several weeks for broker-to-charity transfers to complete.
Tax-loss harvesting mechanics: To realize a capital loss for 2027, you must execute the sale by December 31 (with settlement occurring in early 2028, which is fine). Remember the wash sale rule: if you buy substantially identical securities within 30 days before or after the sale, you can’t claim the loss. This means repurchasing in January could also trigger wash sale problems.
FSA use-it-or-lose-it: Flexible Spending Account funds generally must be used for expenses incurred by December 31, though some plans offer a grace period (until March 15 of the following year) or a carryover (up to $610). Check your specific plan’s rules—forfeiting FSA money is essentially throwing away tax-free dollars.
Roth conversion math: Roth conversions must be completed by December 31 to count for that tax year. The strategic question: in a year when your income is lower than usual, a Roth conversion lets you fill up lower tax brackets with converted amounts, paying tax at a lower rate than you might in future years when RMDs begin.
2027 Estimated Tax Payment Schedule
Understanding when estimated taxes are due—and why the quarters are uneven—can prevent costly penalties and help you better manage cash flow throughout the year.
For 2027 Income
| Quarter | Income Period | Due Date |
|---|---|---|
| Q1 | January 1 - March 31, 2027 | April 15, 2027 |
| Q2 | April 1 - May 31, 2027 | June 16, 2027 |
| Q3 | June 1 - August 31, 2027 | September 15, 2027 |
| Q4 | September 1 - December 31, 2027 | January 15, 2028 |
Why the quarters aren’t equal: Look closely and you’ll notice Q2 covers only two months while Q3 and Q4 each cover three. This peculiarity dates back to when the tax year used to start March 1. The IRS never realigned the quarters, so we’re stuck with this asymmetric schedule. For most taxpayers who make equal quarterly payments, this doesn’t matter—but it’s important context if you’re trying to match payments to actual income using the annualized income method.
Who Must Pay Estimated Taxes
| Taxpayer Type | Requirement |
|---|---|
| Self-employed | Owe $1,000+ in taxes for year |
| Gig workers | Owe $1,000+ in taxes for year |
| Investors | Significant capital gains or dividends |
| Retirees | No tax withholding on pension/SS |
| Corporations | Owe $500+ in taxes for year |
The safe harbor rule: You can avoid underpayment penalties entirely by paying at least 100% of last year’s tax liability through withholding and estimated payments (110% if your AGI exceeded $150,000). This is true regardless of how much you actually owe this year. Many taxpayers with variable income use this “safe harbor” approach—they base estimated payments on last year’s tax, then pay any remaining balance at filing time.
Penalty math example: If you should have paid $12,000 in estimated taxes throughout the year but paid nothing, the underpayment penalty is roughly 2% of the underpaid amount calculated quarterly—approximately $240 on that $12,000 underpayment. That’s real money, but not catastrophic. Compare this to the late filing penalty, which maxes out much faster.
2027 Contribution Limits (Expected)
Limits subject to IRS annual adjustments for inflation. Official 2027 limits will be announced in late 2026.
The IRS adjusts retirement contribution limits annually to keep pace with inflation. These projected limits are based on recent inflation trends—use them for planning, but verify when official numbers are released (typically in October or November of 2026).
Retirement Account Limits
| Account | Under 50 | Age 50+ | Notes |
|---|---|---|---|
| 401(k)/403(b) | $24,000* | $31,500* | Employee contribution |
| Traditional/Roth IRA | $7,500* | $8,500* | Combined limit |
| SEP IRA | Up to $70,000* | Same | 25% of compensation |
| SIMPLE IRA | $16,500* | $20,000* | Employee contribution |
| HSA (individual) | $4,400* | $5,400* | Plus $1,000 catch-up |
| HSA (family) | $8,750* | $9,750* | Plus $1,000 catch-up |
The catch-up contribution opportunity: If you’ll turn 50 during 2027, you can make catch-up contributions for the entire year, not just the months after your birthday. This is one of the few instances where the tax code becomes more generous with age.
HSA triple tax advantage: Health Savings Account contributions are deductible when made, grow tax-free, and are tax-free when withdrawn for qualified medical expenses. The 2027 limits are projected to increase based on healthcare inflation trends. If you’re eligible for an HSA (enrolled in a high-deductible health plan), maxing out contributions is one of the best tax moves available.
State Tax Deadlines 2027
While most states align with the federal April 15 deadline, a handful march to their own beat—and living in these states creates an extra layer of deadline tracking.
States Following April 15
Most states align with the federal April 15 deadline, including: California, New York, Florida, Texas, Illinois, Pennsylvania, Ohio, Georgia, North Carolina, New Jersey, Michigan, Washington, Arizona, Colorado, and most others.
When federal deadlines shift, most states shift too: In years when April 15 falls on a weekend or holiday, the federal deadline moves—and most states follow suit. But verify with your state’s tax authority, as some states have their own rules about deadline adjustments.
States With Different Deadlines
| State | 2027 Deadline | Notes |
|---|---|---|
| Delaware | April 30, 2027 | Individual returns |
| Hawaii | April 20, 2027 | Individual returns |
| Iowa | April 30, 2027 | Individual returns |
| Louisiana | May 15, 2027 | Individual returns |
| Virginia | May 1, 2027 | Individual returns |
Why these states differ: These extended state deadlines exist for various historical and administrative reasons. Louisiana’s May 15 deadline, for instance, gives residents extra time following hurricane season’s potential disruptions. Virginia’s May 1 deadline stems from the state’s historical pattern of giving residents time to incorporate federal return information.
Don’t confuse state and federal deadlines: Even if your state deadline is later, your federal return (or extension) is still due April 15. And if you need an extension for your state return, you typically need to file a separate state extension form—an automatic federal extension doesn’t automatically extend your state deadline in most states.
States With No Income Tax
No individual income tax filing required:
- Alaska
- Florida
- Nevada
- South Dakota
- Texas
- Washington
- Wyoming
- New Hampshire (interest/dividends only)
- Tennessee (phased out)
Living in a no-income-tax state simplifies your filing requirements, but remember you may still owe tax to other states where you earned income, owned property, or had other tax-triggering events.
Important Filing Reminders
Getting organized early and filing efficiently can mean the difference between a 10-day refund and a 12-week wait.
E-File for Fastest Processing
| Filing Method | Refund Timeline |
|---|---|
| E-file + direct deposit | 10-21 days |
| E-file + paper check | 3-4 weeks |
| Paper return + direct deposit | 6-8 weeks |
| Paper return + paper check | 8-12 weeks |
The e-file advantage extends beyond speed: E-filed returns have a 1% error rate compared to 21% for paper returns, according to IRS data. Errors trigger delays, correspondence, and sometimes audits. If you’re still filing on paper, consider this the year to switch—free e-filing options are available for most taxpayers through IRS Free File or commercial software.
Why direct deposit matters: Beyond the speed advantage, direct deposit eliminates the risk of a lost, stolen, or delayed check. The IRS can split your refund among up to three accounts using Form 8888, allowing you to automatically route portions to checking, savings, and retirement accounts or Treasury bonds.
Documents to Gather
| Category | Documents |
|---|---|
| Income | W-2s, 1099s, K-1s |
| Deductions | Mortgage interest (1098), property taxes, charitable donations |
| Healthcare | 1095-A (Marketplace), 1095-B/C |
| Investments | 1099-B, 1099-DIV, 1099-INT |
| Retirement | IRA contributions, RMD records |
| Identity | SSNs for all family members |
Create a tax folder system: Whether physical or digital, maintaining a designated folder for tax documents throughout the year dramatically simplifies filing. When a 1099 or receipt arrives, immediately file it in your tax folder rather than tossing it in a pile to sort later.
Missing documents: Most employers and financial institutions must send tax documents by January 31, but K-1s from partnerships and S-corps may not arrive until March (or September if the entity filed an extension). If you’re missing a document, you can often download it from your account portal, or use IRS Form 4852 to prepare a substitute W-2 based on your pay stubs.
Penalties to Avoid
Understanding the penalty structure helps you make smart decisions about extensions, partial payments, and timing. The key insight: the failure-to-file penalty is much steeper than the failure-to-pay penalty, so always file on time even if you can’t pay.
Late Filing Penalty
| Timing | Penalty |
|---|---|
| Each month late | 5% of unpaid taxes |
| Maximum penalty | 25% of unpaid taxes |
| Filed 60+ days late | Minimum $485 or 100% of tax due |
The 60-day cliff: Filing more than 60 days late triggers a minimum penalty of $485 (for 2027) or 100% of your unpaid taxes, whichever is smaller. This creates a sharp cliff—filing 59 days late might cost 10% in penalties, while 61 days late costs at minimum $485. If you’re in this situation, file immediately.
Late Payment Penalty
| Timing | Penalty |
|---|---|
| Each month late | 0.5% of unpaid taxes |
| Maximum penalty | 25% of unpaid taxes |
| Interest | Federal short-term rate + 3% |
Penalty comparison: Notice that the late filing penalty (5%/month) is ten times steeper than the late payment penalty (0.5%/month). This is why the cardinal rule is: always file on time, even if you can’t pay. An extension prevents the filing penalty, and the IRS offers payment plans for those who can’t pay immediately.
Avoiding Penalties
| Strategy | How It Helps |
|---|---|
| File on time (even if can’t pay) | Avoids 5%/month filing penalty |
| Request extension | Avoids late filing penalty |
| Pay at least 90% | Avoids underpayment penalty |
| Set up payment plan | Reduces penalty rate to 0.25%/month |
The payment plan advantage: If you set up an IRS installment agreement, your late payment penalty rate drops from 0.5% per month to 0.25% per month. Combined with avoiding the late filing penalty entirely, this makes payment plans an attractive option for those who owe but can’t pay in full.
First-time penalty abatement: The IRS offers a one-time “get out of jail free” card called first-time penalty abatement (FTA). If you’ve filed and paid on time for the past three years but slip up once, you can request FTA to have penalties removed. This doesn’t eliminate interest, but can provide significant relief.
The Bottom Line
The 2027 tax calendar brings the usual mix of quarterly estimated payments, annual filings, and year-end planning deadlines. While the dates themselves are straightforward, the interactions between them create opportunities for those who plan ahead—and traps for those who don’t.
Key 2027 Dates to Mark
- January 15, 2027: Q4 2026 estimated tax payment
- January 31, 2027: W-2s and 1099s due
- March 15, 2027: Partnership and S-corp returns
- April 15, 2027: Individual returns, IRA contributions, Q1 estimated payment
- June 16, 2027: Q2 estimated payment (note: Sunday shift)
- September 15, 2027: Extended business returns, Q3 estimated payment
- October 15, 2027: Extended individual returns
- December 31, 2027: Year-end contribution and planning deadlines
The action hierarchy: If you’re feeling overwhelmed, prioritize in this order: (1) file returns or extensions on time to avoid the steep filing penalty, (2) pay what you can to minimize interest and late payment penalties, (3) set up a payment plan if you can’t pay in full, and (4) optimize contributions and deductions as time allows.
Stay organized, gather documents early, and consider e-filing with direct deposit for the fastest refund. If you need more time, file for an extension by April 15—but remember that payment is still due by that date. And if you miss a deadline, don’t panic: file as soon as possible to stop penalties from accumulating.
Tax deadlines occasionally shift when they fall on weekends or holidays. Always verify current deadlines at irs.gov.