Social Security at 67 vs. 70: Is Waiting Three More Years Worth It?

You've already decided not to claim Social Security at 62 — smart move. But now comes the harder question: should you claim at your full retirement age (67 for most people) or wait until 70? The difference is an extra 24% in monthly benefits, but you'll go three years without any checks. Here's how to figure out which choice is right for you.

The Numbers: 67 vs. 70

For someone born in 1960 or later, full retirement age (FRA) is 67. Here's how the benefit changes:

That's an extra $7,200 per year ($600/month) for life by waiting three years. But you also forgo $90,000 in benefits you would have received between ages 67 and 70.

The Break-Even Analysis

The key question: at what age does the higher monthly benefit from waiting make up for the three years of missed payments?

Simple Break-Even Calculation

Using the $2,500 PIA example above:

• Claiming at 67: You collect $30,000/year starting at 67
• Claiming at 70: You collect $0 from 67-69, then $37,200/year starting at 70
• Foregone benefits (67-70): $90,000
• Annual advantage of waiting: $7,200/year
• Break-even: $90,000 ÷ $7,200 = 12.5 years after age 70 = approximately age 82½

After age 82½, every year you live means thousands more in your pocket by having waited.

With COLA Adjustments

Social Security benefits receive annual Cost of Living Adjustments (COLA). Since the 24% bonus applies to a higher base amount, COLA adjustments are also larger in dollar terms when you wait. This shifts the break-even point slightly earlier — closer to age 81-82 when factoring in typical 2-3% annual COLAs.

When Waiting to 70 Makes Sense

• You're in good health: If you expect to live into your mid-80s or beyond, the math strongly favors waiting
• You're the higher earner in a couple: Your benefit determines the eventual survivor benefit. Waiting to 70 gives your spouse a 24% larger survivor benefit for the rest of their life
• You have other income sources: If you can cover expenses from savings, pensions, or part-time work from 67-70, you won't miss the SS checks
• You want maximum longevity insurance: Social Security is the only inflation-adjusted, lifetime-guaranteed income most people have. Maximizing it provides the best protection against outliving your savings
• You're still working: If you're earning income between 67-70, adding Social Security may push you into a higher tax bracket, making it less efficient to claim

When Claiming at 67 Makes Sense

• Health concerns: If you have a serious health condition or family history suggesting a shorter lifespan, the break-even analysis may not favor waiting
• You need the income: If you'd otherwise deplete savings or take on debt to cover expenses from 67-70, claiming at 67 makes sense
• Portfolio preservation: If drawing from retirement accounts between 67-70 would significantly deplete your portfolio, the guaranteed SS income may be more valuable than the delayed credits
• You're the lower earner: If your spouse is the higher earner and is already waiting to 70, your claiming decision has less impact on survivor benefits. Claiming at 67 gets money flowing sooner
• High opportunity cost: If you could invest the SS payments and earn strong returns, the guaranteed 8% per year from delayed credits becomes less compelling (though it's risk-free, which investment returns are not)

The Survivor Benefit Factor

For married couples, this is often the deciding factor. When one spouse dies, the survivor keeps the higher of the two Social Security benefits and loses the lower one. The household goes from two checks to one.

If the higher earner waits to 70:

• Survivor benefit = 124% of PIA (includes delayed credits)
• This larger benefit supports the surviving spouse for potentially 10-20+ years

If the higher earner claims at 67:

• Survivor benefit = 100% of PIA
• The surviving spouse gets 24% less for the rest of their life

Example: With a $2,500 PIA, the difference between claiming at 67 and 70 is $600/month in survivor benefits. Over 15 years of widowhood, that's $108,000.

The Tax Angle

Delaying Social Security can also create tax planning opportunities:

• Roth conversion window (67-70): Three years without Social Security income means lower MAGI — more room for Roth conversions in lower tax brackets
• Lower IRMAA: Less income during these years can keep you in a lower IRMAA bracket for Medicare premiums
• Tax bracket management: Social Security benefits are up to 85% taxable. Delaying keeps that taxable income out of your picture while you strategically draw down other accounts

What About Claiming at 68 or 69?

You don't have to choose between exactly 67 and 70. Each month you delay past FRA earns delayed retirement credits (approximately 0.67% per month, or 8% per year). Claiming at 68 gives you an 8% boost; at 69, a 16% boost.

This can be a good compromise if:

• You want some benefit increase but can't afford to wait the full three years
• Your savings can cover 1-2 years but not 3
• You want to start Social Security when a pension or other income source ends

Using Bullseye to Compare 67 vs. 70

Bullseye makes this comparison straightforward:

• Model both claiming ages: Set your Social Security start age to 67 in one scenario and 70 in another. See the year-by-year impact on total income, taxes, and portfolio balance
• See the crossover point: Bullseye's projections show exactly when the "wait until 70" strategy overtakes the "claim at 67" strategy in cumulative lifetime income
• Account for taxes: The true comparison isn't just gross benefits — it's after-tax income. Bullseye factors in how Social Security taxation, IRMAA, and tax brackets change under each scenario
• Test the Roth conversion window: Model doing Roth conversions between 67-70 while delaying Social Security to see the combined tax benefit
• Survivor analysis: Use Scenarios to see what happens to household income if one spouse passes at different ages under each claiming strategy