State Tax Deadlines 2026: Filing Dates for All 50 States
Updated
Most states follow the federal April 15 tax deadline, but several have different due dates. If you live in Delaware, Hawaii, Iowa, Louisiana, or Virginia, you get extra time beyond the federal deadline—a small perk that can help if you’re still gathering documents or waiting on K-1 forms.
Understanding your state’s specific deadline matters more than most people realize. Filing late triggers state-specific penalties that vary significantly: some states charge 5% per month (similar to federal), while others have higher rates. And unlike federal penalties, state tax agencies often have less flexibility with penalty abatement—getting relief requires more documentation and justification.
This guide covers every state’s individual income tax deadline for 2026, extension rules, and what you need to know about filing in multiple states.
State Tax Deadline Quick Reference
Before diving into state-by-state details, here’s a summary of where each state falls. Most states align with the federal deadline, making coordination straightforward.
States With April 15, 2026 Deadline
The majority of states follow the federal deadline, which simplifies tax planning for most Americans:
State
Filing Deadline
Extension To
Alabama
April 15, 2026
October 15, 2026
Arizona
April 15, 2026
October 15, 2026
Arkansas
April 15, 2026
October 15, 2026
California
April 15, 2026
October 15, 2026
Colorado
April 15, 2026
October 15, 2026
Connecticut
April 15, 2026
October 15, 2026**
Georgia
April 15, 2026
October 15, 2026
Idaho
April 15, 2026
October 15, 2026
Illinois
April 15, 2026
October 15, 2026
Indiana
April 15, 2026
November 15, 2026
Kansas
April 15, 2026
October 15, 2026
Kentucky
April 15, 2026
October 15, 2026
Maine
April 15, 2026
October 15, 2026
Maryland
April 15, 2026
October 15, 2026
Massachusetts
April 15, 2026
October 15, 2026
Michigan
April 15, 2026
October 15, 2026
Minnesota
April 15, 2026
October 15, 2026
Mississippi
April 15, 2026
October 15, 2026
Missouri
April 15, 2026
October 15, 2026
Montana
April 15, 2026
October 15, 2026
Nebraska
April 15, 2026
October 15, 2026
New Jersey
April 15, 2026
October 15, 2026
New Mexico
April 15, 2026
October 15, 2026
New York
April 15, 2026
October 15, 2026
North Carolina
April 15, 2026
October 15, 2026
North Dakota
April 15, 2026
October 15, 2026
Ohio
April 15, 2026
October 15, 2026
Oklahoma
April 15, 2026
October 15, 2026
Oregon
April 15, 2026
October 15, 2026
Pennsylvania
April 15, 2026
October 15, 2026
Rhode Island
April 15, 2026
October 15, 2026
South Carolina
April 15, 2026
October 15, 2026
Utah
April 15, 2026
October 15, 2026
Vermont
April 15, 2026
October 15, 2026
West Virginia
April 15, 2026
October 15, 2026
Wisconsin
April 15, 2026
October 15, 2026
District of Columbia
April 15, 2026
October 15, 2026
**Connecticut: Must file Form CT-1040 EXT
The coordination advantage: When your state follows the federal deadline, you can file both returns on the same day and track just one deadline. Most tax software handles both simultaneously, reducing the chance of forgetting your state return.
States With Different Deadlines
A handful of states give residents extra time beyond the federal deadline. If you live in one of these states, you technically have two deadlines to track—but the extra days can be valuable if you’re still waiting on documents.
State
Filing Deadline
Notes
Delaware
April 30, 2026
15 days after federal
Hawaii
April 20, 2026
5 days after federal
Iowa
April 30, 2026
15 days after federal
Louisiana
May 15, 2026
30 days after federal
Virginia
May 1, 2026
16 days after federal
Why these states differ: These extended deadlines exist for various historical and administrative reasons. Louisiana’s May 15 deadline, for instance, provides extra time following hurricane season’s potential disruptions. Virginia’s May 1 deadline stems from the state’s historical pattern of allowing time to incorporate federal return information. Whatever the reason, residents of these states benefit from additional flexibility.
States With No Income Tax
Nine states don’t impose an individual income tax, eliminating the need for state tax filing entirely (though you still must file federal returns):
State
Notes
Alaska
No state income tax
Florida
No state income tax
Nevada
No state income tax
South Dakota
No state income tax
Texas
No state income tax
Washington
No state income tax (has capital gains tax)
Wyoming
No state income tax
New Hampshire
Tax on interest/dividends only (5%)
Tennessee
Hall Tax on interest/dividends phased out (2021)
The no-income-tax reality check: Living in these states simplifies your filing requirements, but it doesn’t eliminate taxes. Many no-income-tax states have higher property taxes, sales taxes, or other levies that make up the difference. And Washington recently added a 7% capital gains tax on gains exceeding $250,000, so even “no income tax” states can surprise you.
State-by-State Details
This comprehensive reference provides the essential details for each state. Use this section to find your state’s specific deadline, extension rules, and tax agency contact information.
Alabama
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Form 4868AL or federal extension
Tax agency
Alabama Department of Revenue
Website
revenue.alabama.gov
Alaska
Item
Details
State income tax
None
Notes
Alaska Permanent Fund Dividend is taxable on federal return
Alaska’s unique situation: While Alaska has no state income tax, residents receive annual Permanent Fund Dividends (PFD) from oil revenues. These dividends are taxable on your federal return as income—a fact that surprises some new Alaska residents at tax time.
Arizona
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Arizona Department of Revenue
Website
azdor.gov
Arkansas
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Arkansas Department of Finance and Administration
Website
dfa.arkansas.gov
California
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic 6-month extension
Tax agency
Franchise Tax Board
Website
ftb.ca.gov
Notes
No form needed for extension; payment still due April 15
California’s automatic extension: California residents get an automatic 6-month extension to file without submitting any form—just don’t miss the payment deadline. If you owe taxes, you must still pay by April 15 to avoid penalties, even though your return isn’t due until October 15. This is one of the most generous automatic extension policies of any state.
Colorado
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Colorado Department of Revenue
Website
colorado.gov/tax
Connecticut
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Form CT-1040 EXT required
Tax agency
Connecticut Department of Revenue Services
Website
portal.ct.gov/DRS
Notes
Must file separate state extension form
Connecticut’s extension trap: Unlike most states that automatically extend if you have a federal extension, Connecticut requires its own extension form (CT-1040 EXT). Many Connecticut residents assume a federal extension covers them—it doesn’t. File the state extension separately or face late filing penalties.
Delaware
Item
Details
Filing deadline
April 30, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Delaware Division of Revenue
Website
revenue.delaware.gov
Notes
15 extra days after federal deadline
Florida
Item
Details
State income tax
None
Notes
No individual income tax; corporate income tax exists
Georgia
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Georgia Department of Revenue
Website
dor.georgia.gov
Hawaii
Item
Details
Filing deadline
April 20, 2026
Extension deadline
October 20, 2026
Extension form
Form N-101A
Tax agency
Hawaii Department of Taxation
Website
tax.hawaii.gov
Notes
5 extra days after federal deadline
Idaho
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Idaho State Tax Commission
Website
tax.idaho.gov
Illinois
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Illinois Department of Revenue
Website
tax.illinois.gov
Indiana
Item
Details
Filing deadline
April 15, 2026
Extension deadline
November 15, 2026
Extension form
Automatic with federal extension
Tax agency
Indiana Department of Revenue
Website
in.gov/dor
Notes
7-month extension (not 6)
Indiana’s extra month: Indiana provides a 7-month extension (to November 15) rather than the standard 6 months most states offer. This extra month can be valuable if you’re dealing with complex returns or waiting on information from pass-through entities that filed extensions.
Iowa
Item
Details
Filing deadline
April 30, 2026
Extension deadline
October 31, 2026
Extension form
IA 4868
Tax agency
Iowa Department of Revenue
Louisiana’s generous deadline: With the latest deadline of any state (May 15), Louisiana gives residents a full month after the federal deadline to file. This extra time can be particularly valuable if you’re waiting on K-1s from partnerships or S-corps that filed extensions for their March 15 deadline.
Maine
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Maine Revenue Services
Website
maine.gov/revenue
Maryland
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Form 502E or automatic
Tax agency
Comptroller of Maryland
Website
marylandtaxes.gov
Massachusetts
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Form M-4868 or automatic
Tax agency
Massachusetts Department of Revenue
Website
mass.gov/dor
Michigan
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic if no balance due
Tax agency
Michigan Department of Treasury
Website
michigan.gov/taxes
Minnesota
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Minnesota Department of Revenue
Website
revenue.state.mn.us
Mississippi
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Mississippi Department of Revenue
Website
dor.ms.gov
Missouri
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Form MO-60 or automatic
Tax agency
Missouri Department of Revenue
Website
dor.mo.gov
Montana
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Montana Department of Revenue
Website
mtrevenue.gov
Nebraska
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Nebraska Department of Revenue
Website
revenue.nebraska.gov
Nevada
Item
Details
State income tax
None
Notes
Commerce tax on businesses over $4M gross revenue
New Hampshire
Item
Details
State income tax
Interest & dividends only (5%)
Filing deadline
April 15, 2026
Notes
Taxable income must exceed $2,400
New Hampshire’s limited tax: While technically not a “no income tax” state, New Hampshire only taxes interest and dividend income at 5%. Wages, salaries, and business income are exempt. If your interest and dividend income is below $2,400 ($4,800 for joint filers), you don’t need to file a New Hampshire return.
New Jersey
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
NJ-630
Tax agency
New Jersey Division of Taxation
Website
nj.gov/treasury/taxation
New Mexico
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
New Mexico Taxation & Revenue
Website
tax.newmexico.gov
New York
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Form IT-370 or automatic
Tax agency
New York Department of Taxation and Finance
Website
tax.ny.gov
North Carolina
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Form D-410 or automatic
Tax agency
North Carolina Department of Revenue
Website
ncdor.gov
North Dakota
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
North Dakota Office of State Tax Commissioner
Website
nd.gov/tax
Ohio
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Ohio Department of Taxation
Website
tax.ohio.gov
Oklahoma
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Oklahoma Tax Commission
Website
tax.ok.gov
Oregon
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Oregon Department of Revenue
Website
oregon.gov/dor
Pennsylvania
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
REV-276
Tax agency
Pennsylvania Department of Revenue
Website
revenue.pa.gov
Rhode Island
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Rhode Island Division of Taxation
Website
tax.ri.gov
South Carolina
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
SC4868 or automatic
Tax agency
South Carolina Department of Revenue
Website
dor.sc.gov
South Dakota
Item
Details
State income tax
None
Tennessee
Item
Details
State income tax
None
Notes
Hall Tax on interest/dividends was phased out in 2021
Tennessee’s recent change: Tennessee eliminated its Hall Tax (on interest and dividends) completely as of 2021. If you’re looking at older tax guides, they may still reference this tax—but it no longer exists. Tennessee residents now have zero state income tax obligation.
Texas
Item
Details
State income tax
None
Notes
Franchise tax applies to businesses
Utah
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
TC-546 or automatic
Tax agency
Utah State Tax Commission
Website
tax.utah.gov
Vermont
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
Vermont Department of Taxes
Website
tax.vermont.gov
Virginia
Item
Details
Filing deadline
May 1, 2026
Extension deadline
November 1, 2026
Extension form
Form 760IP or automatic
Tax agency
Virginia Department of Taxation
Website
tax.virginia.gov
Notes
16 extra days after federal deadline
Washington
Item
Details
State income tax
None
Capital gains tax
7% on gains over $250,000
Notes
Capital gains tax filing due April 15
Washington’s capital gains surprise: While Washington has no income tax, it introduced a 7% capital gains tax in 2022 on the sale of stocks, bonds, and other capital assets with gains exceeding $250,000. This affects high-net-worth individuals and those selling concentrated stock positions. The filing deadline for this tax is April 15.
West Virginia
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic with federal extension
Tax agency
West Virginia State Tax Department
Website
tax.wv.gov
Wisconsin
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
Automatic 6-month extension
Tax agency
Wisconsin Department of Revenue
Website
revenue.wi.gov
Wyoming
Item
Details
State income tax
None
District of Columbia
Item
Details
Filing deadline
April 15, 2026
Extension deadline
October 15, 2026
Extension form
FR-127
Tax agency
DC Office of Tax and Revenue
Website
otr.cfo.dc.gov
State Extension Rules Summary
Understanding whether your state requires a separate extension form or automatically extends with your federal extension can save you from unexpected late-filing penalties.
Automatic Extension With Federal
These states automatically extend your state filing deadline if you have a valid federal extension—no additional form required:
Arizona, Arkansas, California, Colorado, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Maine, Minnesota, Mississippi, Montana, Nebraska, New Mexico, North Dakota, Ohio, Oklahoma, Oregon, Rhode Island, Vermont, West Virginia, Wisconsin
The convenience of automatic extensions: If you live in one of these states and file for a federal extension using Form 4868, your state extension is automatic. Just make sure you’ve paid any estimated state taxes due by the original deadline—an extension to file is not an extension to pay.
Separate State Extension Required
These states require their own extension form—a federal extension alone won’t protect you:
State
Form Required
Connecticut
CT-1040 EXT
Hawaii
N-101A
Iowa
IA 4868
New Jersey
NJ-630
Pennsylvania
REV-276
District of Columbia
FR-127
Don’t assume coverage: If you live in one of these states, file your state extension form by the state deadline. Many taxpayers mistakenly assume that a federal extension automatically extends their state return—and get hit with state late-filing penalties as a result.
Multi-State Filing
Remote work, mid-year moves, and income from multiple sources have made multi-state tax filing increasingly common. Understanding the rules can help you avoid double taxation and comply with each state’s requirements.
Part-Year Residents
If you moved during the year, you’ll likely need to file returns in both states.
Situation
Filing Requirement
Moved mid-year
File part-year return in each state
Income from both states
Allocate income to each residence period
Credits
May claim credit for taxes paid to other state
Part-year allocation: When you file as a part-year resident, you report only the income earned while you were a resident of that state (for most income types). This gets complicated for investment income, deferred compensation, and other income that doesn’t fall neatly into one state or the other. Most tax software handles this allocation, but complex situations may warrant professional help.
Reciprocal Agreements
Some neighboring states have reciprocal agreements that dramatically simplify multi-state filing for commuters:
States With Agreements
Notes
DC-VA-MD
Workers file only in resident state
PA-NJ, PA-OH, etc.
Wages taxed only in resident state
IL-IA-KY-MI-WI
Reciprocal agreements
How reciprocity works: If you live in Virginia but work in DC, you don’t have to file a DC return for your wages—they’re taxed only by Virginia because of the reciprocal agreement. Your employer might still withhold DC taxes, but you can file to get them back. Check whether your state has reciprocal agreements with neighboring states where you work.
Remote Worker Considerations
The rise of remote work has created new complexity in state taxation. There’s no single rule—each state has its own approach.
Situation
General Rule
Live in State A, work for employer in State B
Usually taxed by both; claim credit
Convenience of employer rule
Some states tax based on employer location
Check both states
Rules vary significantly
The convenience of employer rule: Some states (notably New York and a few others) impose income tax on remote workers who work from home for the “convenience of the employer” rather than business necessity. This means a remote worker in New Jersey working for a New York company might owe New York income tax on wages earned while sitting in their New Jersey home office. This creates double taxation headaches and is an area of active legal dispute.
What to do: If you work remotely for an out-of-state employer, research both states’ rules carefully. You may need to file in both states and claim a credit on your resident state return for taxes paid to the other state. Some taxpayers end up paying more in total state taxes than they would if they lived in the same state as their employer.
The Bottom Line
State tax deadlines are straightforward for most Americans—if your state follows the April 15 federal deadline, you file both returns on the same day and track just one date. But for the millions who live in states with different deadlines or who need to file in multiple states, paying attention to state-specific rules is essential.
Most states follow April 15, but always verify your state’s specific deadline. Key exceptions:
State
Deadline
Delaware
April 30
Hawaii
April 20
Iowa
April 30
Louisiana
May 15
Virginia
May 1
And remember: nine states have no individual income tax at all (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, plus New Hampshire for most income types).
The extension reminder: If you need an extension, don’t assume your federal extension covers your state. Check whether your state requires a separate extension form—several do, and missing this step triggers state late-filing penalties even if your federal extension is valid.
State tax laws change. Verify current deadlines with your state tax agency before filing.