Before you turn 65, you face the most consequential financial decisions of your life: Medicare enrollment, Social Security timing, withdrawal strategy, and the shift from saving to spending. The difference between getting these right and wrong can be hundreds of thousands of dollars over a 25-30 year retirement.
Critical Deadlines Before and At 65
| Age | Deadline | Action Required |
|---|---|---|
| 59½ | Penalty-free 401(k)/IRA withdrawals | Can access retirement accounts without 10% penalty |
| 62 | Earliest Social Security eligibility | Can claim (at reduced benefit) |
| 64 and 9 months | Medicare Initial Enrollment begins | 3 months before 65th birthday |
| 65 | Medicare enrollment deadline | Parts A & B (or face permanent penalty) |
| 65 | Medigap open enrollment | 6-month window for guaranteed issue |
| 66-67 | Full Retirement Age (FRA) | Full Social Security benefit (no reduction) |
| 70 | Maximum Social Security benefit | No further benefit increase after 70 |
| 70½ | Legacy RMD age (pre-SECURE Act) | |
| 73 | Required Minimum Distributions (RMDs) | Must start withdrawing from Traditional 401(k)/IRA |
Financial Checklist: The 5 Years Before 65
| # | Task | When |
|---|---|---|
| 1 | Project retirement income (Social Security + savings + pension) | 5 years before |
| 2 | Create a retirement budget (realistic monthly expenses) | 5 years before |
| 3 | Maximize catch-up contributions | Ongoing |
| 4 | Consider Roth conversions before RMDs begin | 5-10 years before 73 |
| 5 | Pay off mortgage and all debt | Before retirement |
| 6 | Plan Social Security claiming strategy | 3-5 years before claiming |
| 7 | Research Medicare options (Parts A, B, C, D, Medigap) | 1 year before 65 |
| 8 | Enroll in Medicare during Initial Enrollment Period | 3 months before turning 65 |
| 9 | Review estate plan (will, trusts, POA, beneficiaries) | Annually |
| 10 | Create a tax-efficient withdrawal strategy | 1-2 years before retirement |
| 11 | Review long-term care plan | Before 65 (insurance cheaper now) |
| 12 | Test-drive your retirement budget for 3-6 months | 1 year before retirement |
Medicare Quick Guide
| Part | What It Covers | Monthly Cost (2025) |
|---|---|---|
| Part A | Hospital, skilled nursing, hospice | $0 for most (paid through payroll taxes) |
| Part B | Doctor visits, outpatient, preventive | $185/month (standard; income-based) |
| Part D | Prescription drugs | $15-$100/month (varies by plan) |
| Medigap (Supplement) | Covers gaps in Parts A & B (copays, coinsurance) | $100-$300/month |
| Part C (Medicare Advantage) | Alternative to Original Medicare; includes Parts A, B, often D | $0-$100/month (but may have network restrictions) |
Original Medicare (A + B + D + Medigap) vs. Medicare Advantage (Part C) is the biggest decision. Original Medicare offers more provider flexibility; Advantage plans may cost less but limit networks.
Social Security Claiming Strategy
| Claiming Age | Monthly Benefit (if FRA benefit = $2,500) | Lifetime Total if You Live to 85 |
|---|---|---|
| 62 | $1,750 (30% reduction) | $483,000 |
| 65 | $2,167 | $520,000 |
| 67 (FRA) | $2,500 | $540,000 |
| 70 | $3,100 (24% increase) | $558,000 |
If you live past ~80, delaying Social Security to 70 produces the most lifetime income.
Tax-Efficient Withdrawal Order
| Priority | Account Type | Why This Order |
|---|---|---|
| 1 | Taxable accounts (brokerage) | Taxed at capital gains rate (lower); preserves tax-advantaged accounts |
| 2 | Traditional 401(k) / IRA | Taxed as ordinary income; must take RMDs at 73 |
| 3 | Roth IRA / Roth 401(k) | Tax-free; grows longest; no RMDs (Roth IRA) |
| Strategic | Roth conversions | Convert Traditional to Roth in low-income years before 73 to reduce future RMDs |
Healthcare Costs in Retirement
| Expense | Annual Cost (per person) |
|---|---|
| Medicare Part B premiums | $2,220 |
| Medicare Part D premiums | $180-$1,200 |
| Medigap premiums | $1,200-$3,600 |
| Out-of-pocket (copays, deductibles) | $2,000-$5,000 |
| Dental and vision (not covered by Medicare) | $1,000-$3,000 |
| Total annual healthcare cost | $6,600-$15,000 |
| Total healthcare cost over 20-year retirement | $132,000-$300,000 |
Common Mistakes That Cost Retirees
| Mistake | Cost |
|---|---|
| Missing Medicare enrollment | 10% permanent premium increase per year late |
| Claiming Social Security too early | 25-30% permanent reduction in monthly benefit |
| No Roth conversion strategy | Higher RMDs and taxes later |
| Ignoring IRMAA (income-adjusted Medicare premiums) | Higher Medicare costs for higher-income retirees |
| Underestimating healthcare costs | $300K+ over retirement |
| Not having a withdrawal strategy | Paying more taxes than necessary |
| Retiring with debt | Monthly obligations reduce retirement flexibility |
| No long-term care plan | Average nursing home: $100K+/year |
The Bottom Line
The 5 years before 65 are the most critical planning window of your financial life. Enroll in Medicare on time (avoid the permanent penalty), optimize your Social Security claiming age, create a tax-efficient withdrawal strategy, and plan for healthcare costs that Medicare doesn’t fully cover. Every decision made in this window compounds for the next 20-30 years. This is the time to work with a fee-only financial advisor if you haven’t already.
Related: Things to Do Before Retiring | Things to Do 5 Years Before Retirement | Things to Know Before Claiming Social Security