Ask most working Americans when they can finally claim Social Security, and you'll hear the same number: 67.
That's the full retirement age for anyone born in 1960 or later.
It's also the number that quietly costs millions of retirees thousands of dollars a year, because 67 is not the age that pays the most.
Claim at 62 and your monthly check is permanently reduced, often by around 30 percent compared with waiting until 67.
Claim at 67 and you get your full benefit.
But hold out until 70 and you earn delayed retirement credits of roughly 8 percent per year for each year past full retirement age.
That adds up to about 24 percent more than your full benefit, for life.
If your full benefit at 67 is $2,000 a month, waiting until 70 pushes it to around $2,480.
Over a 20-year retirement, that's nearly $115,000 in extra income.
Cost-of-living adjustments compound on the bigger base too, so the gap keeps widening as the years pass.
A 2023 study found the overwhelming majority of retirees file before 70, and many file at 62.
Lost jobs, medical bills, and caregiving duties force their hand.
But surveys show a surprising share of people claim early simply because they don't know the rules, or they believe the program is going broke and they'd better grab the money now.
Even under the most pessimistic projections, Social Security is not vanishing.
If Congress does nothing, trust fund reserves run dry in the mid-2030s and benefits could be cut by roughly 20 percent.
That's a real problem, but it's not the same as zero.
Anyone planning around the assumption that checks stop entirely is planning around a scenario the program's own trustees don't project.
Break-even age for delaying from 67 to 70 usually lands in the early 80s.
Die before it and you leave money on the table.
Since a healthy 65-year-old has a decent shot at reaching 85 or beyond, the odds favor patience for many people, especially higher earners and married couples.
When one spouse dies, the survivor keeps the larger of the two benefits.
That means the higher earner delaying to 70 protects the surviving spouse for decades, potentially locking in a much bigger check for the rest of their life.
It's one of the few free longevity insurance policies available to ordinary households.
One more wrinkle that catches people off guard: if you claim before your full retirement age and keep working, the Social Security Administration temporarily withholds part of your benefit once your earnings pass an annual limit, which sits around $22,000 in recent years.
That money is restored later through a higher monthly payment, but the surprise withholding has wrecked plenty of household budgets.
Claiming early makes sense if you're in poor health, if you've stopped working, or if you need the cash to avoid credit card debt.
Waiting makes sense if you're healthy, still earning, or married to someone with a smaller benefit.
The one move that's hard to defend is claiming at 67 out of habit, without ever running your own numbers.
The smartest step costs nothing: create a free account at ssa.gov, pull your actual benefit estimates at 62, 67, and 70, and look at the real dollar gap instead of a percentage.
Most people are shocked by how wide it is.
The retirement age debate usually focuses on 62 versus 67, and that framing quietly steers people toward a smaller check for life.
For anyone who can afford to wait, 70 is the number that actually moves the needle, and it deserves a spot in every household budget conversation.
Final Thoughts
Run your own figures before you file, because once you claim, the choice locks in.