The "right" age to claim Social Security is one of the most expensive decisions you'll ever make, and almost nobody runs the math correctly. Claim too early and you lock in a 30% pay cut for the rest of your life. Wait too long and you might leave years of benefits on the table — or worse, never collect at all.
The honest answer is that "62 vs. 67 vs. 70" depends on four things: your health, your spouse's earnings record, the rest of your retirement income, and how much guaranteed monthly income you actually need. This post walks through each one in plain English so you can make a confident call instead of going off a single rule of thumb.
How Social Security Actually Pays Out
Your monthly benefit is calculated from your highest 35 years of earnings, adjusted for inflation. The result is your Primary Insurance Amount (PIA) — what you'd receive at your Full Retirement Age (FRA), which is 67 for anyone born in 1960 or later.
Claim before FRA and your benefit is permanently reduced. Claim after, and it permanently grows. The numbers, using a $2,500 PIA as an example:
- Age 62 (earliest): roughly 70% of PIA → $1,750/month
- Age 67 (FRA): 100% of PIA → $2,500/month
- Age 70 (latest worth waiting for): 124% of PIA → $3,100/month
That's a $1,350/month gap between claiming at 62 and claiming at 70. Over a 25-year retirement, the lifetime difference can exceed $200,000 — before inflation adjustments. There is no benefit to waiting past 70, so 70 is the ceiling.
The Breakeven Trap
The most common framing you'll hear is the breakeven analysis: "If you wait from 62 to 67, you give up five years of checks, but the bigger monthly amount catches up around age 78. If you live past 78, waiting wins."
That math is technically right, and almost completely useless on its own. Here's why:
1. It ignores taxes
Social Security is partially taxable based on your "combined income." If you're pulling from a traditional 401(k) at the same time, up to 85% of your benefit gets added to your taxable income. A larger Social Security check pushed against a smaller 401(k) withdrawal can actually leave you with more after-tax cash than a smaller check plus a bigger withdrawal — because you avoid stacking income into a higher tax bracket.
2. It ignores portfolio survival
Every dollar of Social Security you collect early is a dollar you don't have to withdraw from your portfolio. In a strong market, that's a wash. In a market downturn at the start of retirement (the dreaded "sequence of returns risk"), claiming early and leaving your portfolio alone can extend its lifespan by years.
3. It ignores your spouse
If you're the higher earner in a couple, the bigger your check, the bigger the survivor benefit your spouse inherits. Delaying to 70 doesn't just buy you a bigger check — it buys your spouse a bigger check for whatever years they outlive you.
A pure breakeven calculation throws all of this away. To make the right call you need to model your whole retirement income picture, not just one variable.
Three Scenarios That Drive the Decision
Scenario A: Take it at 62
This usually makes sense when:
- You have serious health issues or a family history that suggests a shorter lifespan. The breakeven math really does matter here — if you don't reach 78–80, claiming early wins.
- You need the cash to retire. If working until 67 isn't realistic and your portfolio can't bridge the gap alone, claiming early is a legitimate planning decision, not a mistake.
- You're single, in good health, but want flexibility. Some retirees claim early specifically to preserve portfolio assets in the down years, planning to reinvest the excess. This works on paper; it requires discipline in practice.
Watch out for the earnings test: if you claim before FRA and keep working, Social Security withholds $1 for every $2 you earn above $24,480 (2026 limit). The withheld amount comes back later, but it can sting in the short term.
Scenario B: Take it at Full Retirement Age (67)
The "default" choice for a reason. At FRA:
- You collect 100% of your PIA — no reduction, no bonus.
- The earnings test disappears, so you can work as much as you want.
- You avoid the "what if I die at 71?" regret of waiting all the way to 70.
This is the right answer for a large middle group: people in average health, with average longevity expectations, who don't have a strong reason to claim earlier or wait longer.
Scenario C: Wait Until 70
This is the highest-value choice when:
- You're the higher-earning spouse in a couple where the other spouse is likely to live longer. The bigger your benefit, the bigger their survivor check.
- You expect above-average longevity (current health is excellent, family history of long lives, female and non-smoker — all push the math toward waiting).
- You have enough portfolio assets to bridge from retirement to 70 without panicking in a down market.
- You want to maximize guaranteed inflation-adjusted income for the years your portfolio is most likely to be depleted.
Think of waiting as buying the cheapest annuity on Earth. There's no commercial product that gives you an 8% guaranteed annual increase on a CPI-adjusted lifetime income stream. Social Security does, every year between FRA and 70.
The Spousal Math Almost Everyone Misses
For married couples, the decision isn't "when should I claim?" It's "when should each of us claim?" — and the optimal answer is often different for each spouse.
A common high-value strategy:
- The lower-earning spouse claims at or near 62. The reduction on their smaller benefit costs less in absolute dollars, and the cash flow helps the household bridge to 70.
- The higher-earning spouse waits until 70. This maximizes both their own lifetime benefit and the survivor benefit the other spouse will inherit.
Run that scenario versus "both claim at 67" or "both claim at 62" and the lifetime difference for a typical couple is often $150,000–$300,000.
How Taxes Quietly Reshape the Decision
Here's something most claiming articles skip. From the moment you stop working until age 73 (when RMDs kick in), you have a window where your taxable income is artificially low. That window is the most valuable tax-planning real estate of your life.
If you claim Social Security at 62, you fill up that low-income window with Social Security — meaning less room for Roth conversions at low tax rates. If you wait until 70, those eight years become available for converting traditional IRA dollars to Roth at the 12% or 22% bracket instead of the 24%+ bracket you'll face when both Social Security and RMDs are running at the same time.
For higher-net-worth households, this Roth conversion runway is often worth more than the higher Social Security check itself.
A Practical Way to Decide
There's no spreadsheet template that handles all of this on a napkin. The decision needs to be made against your whole retirement picture: your portfolio, your spouse's situation, your tax brackets year by year, your projected expenses, and a realistic longevity estimate.
The most useful thing you can do is model the three scenarios — claim at 62, claim at 67, claim at 70 — side by side and look at:
- Lifetime after-tax income under each scenario
- Portfolio balance at age 90 under each scenario
- Survivor benefit for your spouse under each scenario
- Year-by-year tax bracket under each scenario
If one scenario wins on three of those four metrics, you've found your answer. If they trade off, the right choice usually comes down to which risk you'd rather take: dying early with money on the table, or living longer than planned with less monthly income.
How Tally Helps
Tally was built to make this kind of side-by-side comparison something you can do yourself, without a spreadsheet PhD or a $3,000 advisor engagement.
You enter your situation once — accounts, income, expenses, ages, state. Tally builds a year-by-year lifetime forecast that includes Social Security at the age you select, real federal progressive brackets, all 50 state income taxes, FICA, RMDs, and inflation. Then you use the what-if scenarios to clone your forecast and change one variable — say, "claim Social Security at 70 instead of 67" — and see the lifetime difference in after-tax dollars and ending portfolio balance.
You can model Roth conversion ladders alongside your claiming strategy and watch how the tax brackets interact. You can adjust longevity assumptions to see how sensitive the decision is to "what if I live to 95?" And you can run the spousal coordination scenarios without manually rebuilding the model each time.
Social Security is a one-time decision that pays out (or doesn't) for the next 20–30 years. Making it based on a single rule of thumb is the most expensive shortcut in personal finance.
Try Tally free for 14 days at thetally.io — no credit card required. Model your claiming options against your full retirement picture and see which year actually puts the most money in your pocket over your lifetime.