Social Security at full retirement age or later: how to compare
The question sounds simple: claim Social Security at 67, or wait until 70? The answer is rarely simple, because it depends on how long you live, what else you have to draw on, and how the extra income interacts with your taxes.
But the framework is manageable. With three numbers you can look up yourself, you can find what a planner would call your break-even age.
What you get by waiting
Full retirement age is not the same for everyone. For people born in 1960 or later it is 67. For earlier cohorts it lands somewhere between 66 and 67. Look yours up on ssa.gov before you use any number in this article as your own.
The Social Security Administration increases your monthly benefit for each year you delay past your full retirement age, up to age 70. The increase is called delayed retirement credits, and for most people born after 1943, it works out to 8 percent per year.
Wait three years past your full retirement age and your monthly check is roughly 24 percent higher, for the rest of your life, adjusted for inflation each year.
But there is a cost. During those years, you get nothing from Social Security. Your savings, or continued work, has to cover the gap.
Important: delaying Social Security does not delay Medicare. Per SSA guidance, if you are not already receiving Social Security when you turn 65, you must actively enroll in Medicare during your initial enrollment window to avoid late-enrollment penalties on Part B and Part D.
How to find break-even
Break-even is the age at which your total Social Security income is the same whether you claimed early or delayed. After break-even, delayed wins. Before break-even, claiming early wins.
The formula is simpler than it sounds. Multiply your monthly benefit at your full retirement age by 12 to get your annual benefit. Do the same for the delayed benefit. The difference between the two is your extra annual income if you wait.
The years you skipped are your foregone income. Divide the foregone total by the extra annual amount, and you get the number of years to recoup. Add that to your delayed claiming age, and you have your break-even age.
For most Americans, break-even on a 3-year delay from 67 to 70 falls somewhere between age 79 and 82.
Why the number is not the whole answer
Break-even in dollars is not break-even in value. A dollar today is worth more than a dollar in ten years. If you want to compare honestly, discount future benefits to today's dollars, or use a real (inflation-adjusted) rate.
There are taxes. Depending on your other income, up to 85 percent of your Social Security may be taxable. If you delay and pull more from a 401(k) in the meantime, you might land in a higher bracket during the bridge years. If you delay and take low-tax Roth withdrawals instead, the trade may shift in your favor.
And there is longevity. If your family typically lives into their 90s, delaying is usually a clear win. If your health is fragile, claiming earlier can be the safer choice.
Two questions people often skip
First: how does it affect your spouse? A higher delayed benefit becomes the survivor benefit if you die first. For couples where one partner has significantly higher earnings, delaying the higher-earner's benefit is often the single best move for the surviving spouse.
Second: what do you want the years for? The first five years of retirement are often the most active. If you delay for a bigger check at 70 but drain savings to bridge, you may end up with less room to spend during the years you most want to.
A worked example
Say your full retirement age benefit is $2,500 a month, or $30,000 a year, at 67. Delay to 70 and it grows by roughly 24 percent to about $3,100 a month, or $37,200 a year, for the rest of your life.
By delaying 3 years, you skip $90,000 in benefits. In exchange, you get $7,200 more per year for the rest of your life. $90,000 divided by $7,200 is 12.5 years. So break-even is 3 + 12.5 = 15.5 years after your full retirement age.
If your full retirement age is 67, break-even lands near 82.5. If you are healthy and your family typically lives into the 90s, delaying is likely a good bet. If your health is uncertain, claiming earlier can be the safer call. Taxes and other income can move the number a couple of years in either direction.
Short recipe
- Look up your monthly benefit at your full retirement age.
- Look up the delayed benefit at 68, 69, and 70.
- Divide foregone benefits by the annual increase to get years to break-even.
- Add that to the delayed claiming age for the break-even age.
- Check against your expected longevity, your spouse, and your tax picture.
There is no single right answer. There is your answer, and it becomes clearer once you can see the math behind it.