Social Security COLA for 2027: What the Early Numbers Suggest

If you receive Social Security, the number you are waiting for arrives in mid October. That is when the Social Security Administration announces the 2027 cost-of-living adjustment, the annual raise built into your benefit.

The official figure is not set yet. But the groups that track it closely have narrowed their estimates, and the picture is already clearer than it was in the spring. Here is where things stand, how the number actually gets calculated, and the one catch that decides how much of the raise you keep.

What the projections say right now

Two well known trackers publish running estimates, and both currently point to a raise in the mid 3 percent range.

The Senior Citizens League, a nonpartisan seniors advocacy group, projects a 3.6 percent COLA for 2027 as of its August update. That is down slightly from the 3.8 percent it projected in July, because inflation cooled a bit over the summer.

Mary Johnson, an independent Social Security and Medicare policy analyst, puts her estimate at 3.4 percent based on July inflation data. Her forecast has come down too. She was projecting as high as 4.7 percent back in June.

To put those numbers in context, the 2026 COLA was 2.8 percent. So even at the lower end of current estimates, 2027 would bring the largest adjustment in several years.

What would that mean in dollars? The average retired worker’s check is currently about $2,086 a month. A 3.6 percent increase would add roughly $75 a month. A 3.4 percent increase would add about $71. Your own raise depends on your own benefit amount, since the COLA is a percentage, not a flat dollar figure.

One important caution. These are projections, not promises. They shift every month as new inflation data comes in, and the final number depends on data that has not been published yet. Treat anything you read before mid October as an educated estimate.

How the COLA is calculated, in plain English

The COLA is not a decision anyone makes. There is no committee voting on how generous to be. It is a formula written into law, and it works like this.

The government tracks prices using something called the CPI-W. The full name is the Consumer Price Index for Urban Wage Earners and Clerical Workers. Think of it as a monthly measurement of what a basket of everyday goods and services costs.

The Social Security Administration takes the average CPI-W reading for July, August, and September of this year. It compares that average to the same three month average from last year. The percentage increase, rounded to the nearest tenth of a percent, becomes the COLA.

That is why nobody can know the final number today. As of this writing, the July figure is in, but August and September are still to come. Those last two readings will settle it.

If prices had not risen at all, there would be no COLA. That has happened three times since automatic adjustments began in 1975. It will not happen for 2027, based on the inflation we have already seen this year.

Key dates to circle

Mark two dates on the calendar.

October 14, 2026 is announcement day. The Bureau of Labor Statistics releases the September inflation report that morning at 8:30 a.m. Eastern, which completes the three month average. The Social Security Administration announces the official 2027 COLA the same day.

January 2027 is when the raise reaches your check. Social Security retirement benefits are paid based on your birth date. If you were born on the 1st through the 10th of the month, your first adjusted payment arrives Wednesday, January 13, 2027. Birthdays on the 11th through the 20th get paid January 20. Birthdays on the 21st through the 31st get paid January 27.

If you receive SSI, you will see the increase slightly earlier. Because January 1 is a federal holiday, the January SSI payment goes out on December 31, 2026, and it will include the new COLA.

In December, the SSA also mails (and posts to your my Social Security account) a notice showing your exact 2027 benefit amount. You do not need to do anything to receive the increase. It is automatic.

The Medicare Part B catch

Here is the part that trims the headline number for most retirees.

If you are enrolled in Medicare Part B, the premium is usually deducted straight from your Social Security payment. When that premium goes up, it eats into your COLA before the money ever reaches you.

The 2026 Part B premium is $202.90 a month. For 2027, the annual Medicare trustees report projects a premium of $209.50, an increase of $6.60 a month. Some independent analysts think the actual number will come in higher, possibly $215 or more, because the trustees have underestimated costs in recent years.

That projection is not final either. Medicare typically announces the official Part B premium in November, after the COLA is already public.

Run the rough math with the current estimates. A $75 monthly raise minus a $7 to $13 premium increase still leaves most retirees ahead by $60 or more per month. That is a better outcome than some recent years, when larger premium jumps swallowed a bigger share of the raise.

There is also a safety net worth knowing about, called the hold harmless provision. For most people who have the premium deducted from their benefit, the Part B increase cannot reduce your Social Security check below what it was the year before. With a COLA in the mid 3 percent range, that protection is unlikely to be needed for most beneficiaries in 2027, but it exists.

What you can do while you wait

Honestly, not much is required, and that is good news. The COLA applies automatically. There are no forms, no phone calls, and no deadlines tied to the increase itself.

A few small things are worth doing anyway.

Ignore anyone who contacts you claiming you must act to receive your COLA. Nobody legitimate will ever call, email, or text asking you to confirm information to get your raise. That is a scam, every time.

Consider penciling the estimate into your 2027 budget, but use the lower end. If you plan around a 3.4 percent raise and the final number comes in higher, that is a pleasant surprise instead of a shortfall.

Watch for your December benefit notice and check that the math matches the announced percentage. Errors are rare, but five minutes of checking costs nothing.

And if part of the goal is stretching the check you already have, it is worth remembering that discounts do more for a fixed income than a one-time windfall does. The finance section of our perks page rounds up current offers on banking, insurance, and everyday bills for readers 55 and up.

The bottom line: the early numbers point to a 2027 raise somewhere around 3.4 to 3.6 percent, worth roughly $70 to $75 a month for the average retiree, with a modest Part B increase taking a bite. The official number lands October 14. Retired Perks will publish the confirmed COLA, and what it means for your check, the week it drops. Subscribe to the newsletter and you will have it in your inbox before the evening news gets to it.

Sources

• The Senior Citizens League: COLA Projection Falls to 3.6% With 2 Months Remaining to 2027 Announcement
• The Senior Citizens League: COLA Watch
• CNBC: Social Security COLA estimates for 2027 fall as inflation moderates
• Social Security Administration: Cost-of-Living Adjustment (COLA) Information
• AARP: Social Security COLA Preview: Will 2027 Benefits Go Up?
• Kiplinger: Medicare 2027 Projections: Higher Premiums Are Coming
• MOAA: Medicare Report Estimates Future Part B Premiums
• Kiplinger: Latest Inflation Data Drives Down 2027 Social Security COLA Forecast