Retiring
at 70

What changes
at 70

70 is where the Social Security system stops rewarding patience. Delayed retirement credits — the 8% per year increase for waiting past full retirement age — stop accumulating. Your benefit is now at its permanent maximum: 124% of your FRA amount, inflation-adjusted for life. If you haven’t claimed yet, there is no financial reason to wait another day.

The structural advantages at 70 are significant. Medicare has been covering your healthcare for five years — no gaps, no ACA subsidies to manage. All retirement accounts have been penalty-free for over a decade. Social Security at its maximum level covers a larger share of your spending than at any earlier claiming age, which means less pressure on your portfolio. The planning at 70 is purely about execution: how to sequence withdrawals, manage the three-year window before RMDs, and minimize the tax bill on what you’ve accumulated.

Social Security:
claim now

If you’re turning 70 and haven’t claimed Social Security, file immediately. There is no benefit to waiting past 70 — delayed retirement credits stop accumulating, and every month you don’t claim is a month of benefits you’ll never get back. This is one of the few areas of retirement planning with a clear, unambiguous answer.

Your benefit at 70 is 24% higher than at full retirement age (67). For someone with a $2,400/month FRA benefit, that’s $2,976/month — $35,712 per year, adjusted for inflation every year for the rest of your life. Compared to claiming at 62 ($1,680/month), you’re receiving 77% more per check. Over a 20-year retirement to 90, that difference adds up to roughly $310,000 in cumulative additional income.

The maximum Social Security benefit at 70 in 2026 is $5,108/month ($61,296/year) for someone who earned at or above the taxable maximum throughout their career. Most retirees won’t hit this ceiling, but even a moderate earner at 70 receives substantially more than at any earlier claiming age. For married couples, both spouses claiming at 70 can mean $50,000–$70,000 per year in combined benefits — enough to cover the majority of spending for many households.

One consideration: up to 85% of your Social Security benefit is taxable at most income levels. At a $35,700 benefit, that’s roughly $30,400 added to your adjusted gross income. For a married couple, the $32,200 standard deduction shelters nearly all of it — so SS alone generates almost no federal tax. But it still occupies bracket space. Any additional income (withdrawals, Roth conversions, RMDs) stacks on top, which affects Roth conversion capacity and overall tax planning. The Social Security timing guide covers the full claiming calculus.

Withdrawal strategy
at 70

At 70, Social Security covers a larger share of your spending than at any earlier retirement age. If your benefit is $35,700/year and you spend $65,000, the portfolio only needs to generate $29,300 — less than half of total spending. This changes the withdrawal sequencing calculus because the stakes per dollar withdrawn are lower, but the cumulative impact over 20 years is still significant.

The conventional order — taxable first, then tax-deferred, then Roth last — remains a reasonable default. But at 70, with RMDs looming at 73, the conventional order may not be optimal. If you have a large tax-deferred balance, drawing from it now (while you can control the amount) may be smarter than waiting for mandatory distributions that could push you into a higher bracket. The goal is to flatten your taxable income across years rather than letting it spike when RMDs begin.

Consider the three-year window from 70 to 73 as a controlled drawdown opportunity. You know your Social Security income. You can choose exactly how much to pull from tax-deferred versus Roth versus taxable accounts. After 73, you lose some of that control — the RMD is a floor on your tax-deferred withdrawals, regardless of whether you need the money. Using these three years to rebalance across account types can reduce your tax bill for the next two decades.

Roth conversions:
the final window

The three years between 70 and 73 are the last window for Roth conversions before RMDs complicate the picture. You can still convert after 73, but you must take your RMD first (RMDs cannot be converted to Roth), which means the mandatory distribution fills your brackets before any voluntary conversion.

In 2026, a married couple filing jointly can convert up to $133,000 before hitting the 22% bracket — the $32,200 standard deduction shelters the first portion, and the 12% bracket covers the next $100,800. But your maximum Social Security benefit adds roughly $30,400 in taxable income (85% of $35,700), which reduces conversion space to about $103,000 at the 12% rate. For a single filer, the ceiling is $66,500 before the 22% bracket, minus about $15,200 in taxable SS, leaving roughly $51,300.

That’s still meaningful. Three years of $100,000 conversions (for a married couple) moves $300,000 from tax-deferred to Roth — reducing the balance that RMDs are calculated against by $300,000. At age 73, that’s roughly $11,300 less in mandatory distributions every year. Over 17 years of RMDs (73 to 90), the reduced balance prevents an estimated $35,000–$55,000 in federal taxes, depending on your bracket.

The decision depends on your tax-deferred balance. If it’s under $500,000, RMDs may stay within the 12% bracket even without conversions — the urgency is lower. If it’s over $1 million, RMDs will almost certainly push into the 22% bracket or higher, and IRMAA surcharges become likely. The larger the balance, the more valuable these final three years of conversions become.

RMDs in
3 years

Required Minimum Distributions begin at 73. At that point, the IRS requires you to withdraw a minimum percentage of your tax-deferred balance each year — whether you need the money or not. The percentage starts at roughly 3.8% at 73 and increases every year. These distributions are taxable as ordinary income and count toward MAGI for IRMAA.

Combined with maximum Social Security ($35,700/year, of which ~$30,400 is taxable), even modest RMDs can push you into higher brackets. An $800,000 tax-deferred balance at 73 produces an RMD of about $30,200 — combined with Social Security, that’s roughly $60,600 in taxable income before any voluntary withdrawals. A $1.2 million balance generates a $45,300 RMD, pushing combined taxable income toward $75,700 and approaching the top of the 12% bracket for a single filer.

The compounding problem: you’re only withdrawing the minimum, so the remaining balance continues to grow. Each year, both the percentage and the base increase, meaning RMDs accelerate over time. At 80, the RMD percentage is about 4.9%; at 85, it’s roughly 6.3%. A $1 million balance at 73 that grows at 5% after RMDs still produces RMDs of $60,000–$70,000 by age 85, even after a decade of mandatory withdrawals.

The three years between 70 and 73 are your last opportunity to reduce this trajectory. Every dollar moved to Roth or withdrawn strategically before 73 shrinks the base that generates mandatory taxable income for the rest of your life. Roth accounts have no RMDs — they grow tax-free, come out tax-free, and stay on your schedule. The urgency here is real: at 67, you had six years to plan. At 70, you have three.

How much
you need

A 70-year-old planning to age 90 has a 20-year retirement horizon. The 4% rule was tested against 30-year retirements, so a 20-year horizon gives you more room — historical safe withdrawal rate research supports a rate of 4.3–4.7% for this timeframe. But the real advantage at 70 is that maximum Social Security covers a large portion of spending, which lowers the portfolio’s burden.

For someone spending $65,000/year with a $35,700 Social Security benefit at 70, the portfolio needs to generate about $29,300/year. At a 4.5% withdrawal rate, that requires roughly $651,000. Compare that to retiring at 60, where the portfolio must cover 100% of spending for years before any Social Security income arrives and the time horizon is 30+ years. The savings target at 70 is roughly half what it is at 60, all else equal.

Healthcare costs at 70 are predictable. Medicare Part B runs about $185/month per person in 2026, plus supplemental coverage. Total out-of-pocket for a 70-year-old couple on Medicare typically runs $8,000–$15,000 per year. The exception is IRMAA: if your modified adjusted gross income exceeds $212,000 (married) or $106,000 (single), surcharges can add $2,000–$10,000 per person, per year. The IRMAA guide covers the income thresholds and how to stay below them.

The lower savings target at 70 doesn’t mean less planning — it means the planning shifts from accumulation to optimization. The difference between a tax-efficient and tax-inefficient withdrawal strategy over 20 years can easily exceed $50,000. Getting the Roth conversion timing right, managing IRMAA, and positioning for RMDs are the decisions that determine how far your savings actually go.

Model your
retirement at 70

At 70, the variables are known. Social Security is at its maximum. Medicare is established. Account balances are what they are. The remaining decisions — withdrawal order, Roth conversions before 73, RMD positioning — all interact, and the right combination depends on your specific numbers. A year-by-year projection is the only way to see how these choices play out together.

Drawdown Arc models from age 70 through your plan-to age. It applies the correct tax treatment to each account type, calculates federal brackets on combined Social Security and withdrawal income, and shows your tax bill, portfolio balance, and withdrawal amounts for every year. You can adjust your withdrawal priority, test different Roth conversion strategies, and see exactly when RMDs kick in and what they cost.

Set your retirement age to 70, enter your current balances, and see the full picture. The free version handles federal taxes and year-by-year drawdown. Pro adds state taxes, scenario comparison, and PDF reports — so you can model different withdrawal sequences side by side and find the one that minimizes your lifetime tax bill.