Whether you’re already living on Social Security, watching a parent depend on it, or just trying to figure out what retirement even looks like these days, the 2027 raise is worth paying attention to. It’s shaping up to be the fattest one retirees have gotten in three years.
Right now the guesses sit between 3.4% and 3.6%. On the average retired-worker check, about $2,086 a month, that works out to somewhere around $70 to $75 more landing in the account every month starting in January. Not life-changing money, but real money, especially after two years of raises that barely kept up with a carton of eggs.
Nobody gets to call it official yet. That happens October 14, when the last piece of inflation data needed to nail down the real number finally comes out.
The raise is shaping up to be the biggest in three years
Three groups run these numbers every month just so retirees don’t have to wait until October for a read: AARP, the Senior Citizens League, and the nonpartisan Committee for a Responsible Federal Budget. Right now they’re bunched close together, 3.6% on the high end, 3.5% in the middle, 3.4% on the low end. That’s a tight cluster, considering how wildly the guesses bounced around earlier this year.
Any of those numbers would beat the 2.8% raise from 2026, the 2.5% raise the year before, and the 3.2% raise in 2024. It would be the biggest bump since the 8.7% jump in 2023, itself the largest COLA in four decades. Since 2001, this raise has averaged about 2.6% a year, with nothing at all in 2010, 2011, and 2016. So 2027 would be a good year on paper, if the numbers hold.
How the percentage turns into real dollars
Percentages don’t mean much until you see the dollar signs attached. AARP’s math starts with the average retired-worker check, about $2,086 a month as of July, and a 3.6% raise on that comes out to roughly $75 more every month, close to $900 over the year. TSCL’s version runs off a different base, the average check for all beneficiaries instead of just retired workers, and lands on a $67.90 monthly bump under its 3.5% projection, pushing that average check from $1,940.08 to $2,007.98.
Your own bump depends entirely on what you’re already collecting, since a raise is a cut of your current check, not a flat number handed to everybody. Somebody pulling in $1,600 a month is looking at $54 to $58 extra. Somebody at $3,000 is looking at $102 to $108. Bigger check now, bigger raise later. That’s just how the percentage works.
Why the estimates keep sliding around
The formula behind all this isn’t complicated on paper. Social Security takes the average Consumer Price Index for Urban Wage Earners and Clerical Workers, CPI-W for short, across July, August and September, compares it to the same three months last year, and rounds to the nearest tenth of a point. Simple enough, except two of those three months don’t exist yet.
That missing month is why the estimates have been all over the map. Back in June, one independent Social Security analyst had the number as high as 4.7%, a spike driven by oil prices after the U.S. and Iran started shooting at each other. Then a ceasefire cooled off gas prices over the summer, and one tracker’s forecast slid down to 3.5% in August. Then August’s inflation report came in hotter than anyone expected, and that same forecast jumped right back up to 3.6% by mid-September. September’s number, the last one anyone needs, lands the same day the government makes it official.
The Medicare premium question everyone forgets to ask
Here’s the part that never makes the headline: most retirees never actually see their whole raise, because Medicare Part B premiums get pulled straight out of the check before it ever hits your bank account. The latest Medicare trustees’ report has the 2027 Part B premium at $209.50 a month, up $6.60 from this year’s $202.90, a bump of a little over 3%. That’s right around the low end of the COLA guesses.
For once, that actually works out okay. The Part B premium jumped almost 10% between 2025 and 2026, from $185 to $202.90, and ate up a big chunk of that year’s 2.8% raise before retirees ever felt it. If 2027 plays out the way the trustees think, the premium and the COLA move at roughly the same speed, which means more of that raise should actually stick around as spending money instead of vanishing into a bigger Medicare deduction.
Take the premium number with a grain of salt too. CMS usually confirms the real figure later in the fall, a few weeks after Social Security makes its own announcement.
When you’ll actually know, and when the money shows up
Mark your calendar: October 14, 2026, 8:30 a.m. Eastern. That’s when the Social Security Administration drops September’s inflation numbers and the official 2027 COLA at the same time. That single number finishes the calculation and turns every estimate above into an actual fact.
Personalized COLA notices land by mail in early December, spelling out your new benefit amount and, if you’re on Medicare, exactly what’s coming out for Part B. If you don’t want to wait on the mail, the same numbers usually show up sooner in your My Social Security account online.
When the actual deposit shows up depends on your birthday. Born the 1st through the 10th, your first bigger check comes January 13, 2027. Born the 11th through the 20th, that’s January 20. Born after the 20th, you’re getting paid January 27. If you started collecting before May 1997, or you’re on Supplemental Security Income, you see the new amount earlier, on December 31, 2026, since January 3 lands on a Sunday that year.
What to do with an estimate instead of a fact
A range is still useful, even before the SSA makes it official. Plan around the low end, 3.4%, and you won’t be caught off guard if the real number comes in lighter than the headlines are promising right now. If it lands higher, great, that’s a bonus instead of a hole you have to patch somewhere else.
If you’re on Medicare, do the subtraction before you get excited about the headline percentage. A 3.5% COLA minus a roughly 3% Part B increase doesn’t leave much once the premium comes out. The raise looks bigger on paper than it turns out to be in your account.
If you’re still deciding when to file, remember the COLA applies automatically to whatever you’re already drawing, or whatever you’ll be entitled to once you do file. You don’t apply for it separately. Delaying past full retirement age still stacks delayed retirement credits on top of any COLA. The two don’t cancel each other out.
The real number lands October 14. Until then, plan around 3.4% to 3.6%, and check it against your own December notice the second it shows up.
