Social Security COLA: Why the Raise Never Keeps Up

The headline arrives every October and it always sounds like good news. Benefits are going up 3.6%. For the average retired worker that is about $75 more a month, roughly $900 over the year.

Then January comes, you check the deposit, and the number is smaller than the one in the headline. Nothing went wrong. The gap between the announcement and the deposit is built into how the system works, and almost nobody explains it before you see it.

The Social Security COLA, short for cost-of-living adjustment, is the annual raise written into the program to keep benefits level with prices. It is calculated once a year from an inflation index, and four separate mechanisms shrink it between the press release and your bank account.

Here is what the raise actually is, why the index used to set it was never built for retirees, what Medicare takes first, and the 1984 tax threshold that quietly claims more of it every single year.

What the Social Security COLA Actually Is

The adjustment announced in October is 3.6%. It takes effect with January benefits, and for Supplemental Security Income recipients a day earlier, on December 31. More than 75 million Americans receive a Social Security payment, including about 7.3 million on SSI.

The formula is narrower than most people picture. Social Security averages the CPI-W index for July, August, and September, then compares that to the average for the same three months a year earlier. The difference is your raise. Nine months of the year are not in the calculation at all.

That design creates a lag nobody votes on. The raise landing in your January payment is compensation for prices measured the previous summer. When inflation is falling, the lag works in your favor for a few months. When prices are climbing, you spend the entire year being paid for last summer's cost of living, and you never catch up. You just trail at a steady distance.

It is the same squeeze that hits working households, which we covered in why a pay raise can still leave you behind. The difference is that a worker can ask for more. A benefit formula does not negotiate.

The Index Was Built for Working People

CPI-W stands for the Consumer Price Index for Urban Wage Earners and Clerical Workers. Read that name again. It measures the spending of people who go to work.

Retirees buy a different basket. They spend far more on medical care and housing, and far less on gasoline, commuting, and education. Americans 65 and older spend more than twice as much on health care as younger consumers, and those 75 and older spend close to three times as much.

Health costs also climb faster than most other categories. Retirable, a retirement planning service, put healthcare inflation near 5.8% a year against an average COLA closer to 2.4%. Put a fast-rising cost in a basket that underweights it and the resulting raise will always lag the bill.

There is already a better index

The Bureau of Labor Statistics has published an experimental index for Americans 62 and older since 1982. It is called CPI-E, and it weights medical care and housing the way older households actually spend.

According to analysis from The Senior Citizens League, using CPI-E would have produced a larger COLA in eight of the ten years between 2014 and 2024. The National Committee to Preserve Social Security and Medicare, an advocacy organization for older Americans, has pushed for the switch for years.

It has not happened, and not because the data is missing. The law specifies CPI-W. Changing it takes an act of Congress, and a formula that produces slightly larger checks every year costs the trust fund money.

Medicare Takes Its Cut Before You See It

Most retirees never pay a Medicare Part B premium by writing a check. It comes out of the Social Security benefit automatically, which means the raise you read about and the raise you receive are two different numbers.

The current standard Part B premium is $202.90 a month. Medicare's trustees project it rising to $209.50, an increase of $6.60. The official figure comes from CMS in November, so treat the projection as a close estimate rather than a settled number.

Now run it on the average benefit:

• Starting benefit: $2,095 a month
• Raise at 3.6%: plus $75.42
• Projected Part B increase: minus $6.60
• What actually reaches you: $68.82 a month, about $826 over the year

The headline said roughly $900. The deposit says roughly $826. Close to 9% of the raise is gone before the first payment lands, and that is before a single grocery bill.

A rule called hold harmless keeps the Part B increase from pushing your net benefit below what you received the year before. Read it carefully, though. It protects you from going backward. It does nothing to stop the premium from absorbing the raise. Healthcare costs are climbing across every kind of coverage right now, the same pressure behind the jump in health insurance premiums.

The Tax Threshold That Has Not Moved Since 1984

This is the mechanism that costs the most over time, and the one almost no one sees coming.

Social Security benefits became taxable in 1984 for people whose provisional income crossed a line. Provisional income is your adjusted gross income, plus any tax-exempt interest, plus half of your Social Security benefits. Cross $25,000 as a single filer or $32,000 as a couple and up to 50% of your benefits become taxable. A second tier added in 1993 at $34,000 and $44,000 raises that to 85%.

Congress never indexed any of those four numbers. Not once in more than forty years.

The consequence compounds quietly. Had the $32,000 couple threshold tracked average wage growth since 1984, it would sit above $96,000 today. The $25,000 single threshold would be north of $75,000. The Congressional Research Service has documented how the share of beneficiaries paying tax on benefits keeps climbing for exactly this reason.

What that looks like for one retiree

Take a single retiree whose benefit rises to $2,170 a month, or $26,040 a year, with another $20,000 drawn from a traditional IRA.

Provisional income is half the benefit ($13,020) plus the IRA withdrawal ($20,000), which comes to $33,020. That is already past the $25,000 line. It sits just under the $34,000 second tier, where the taxable share jumps from 50% to 85%.

Another adjustment of similar size would add roughly $470 to half of the benefit. A slightly larger IRA withdrawal does the rest. The raise is what pushes you across.

A deduction of $6,000 per person aged 65 and over now offsets some of this, available in full at incomes up to $75,000 single or $150,000 married and phasing out above that. It helps. It does not touch the thresholds, and under current law it is scheduled to end after the 2028 tax year.

Four Things Worth Doing Before January

1. Get your own number, not the average. Your benefit is not $2,095. Social Security posts a personalized COLA notice in your my Social Security account in early December, and it shows the exact amount after the Medicare deduction.

2. Add up your provisional income before the year ends. Half your benefits, plus everything else, including tax-exempt interest. If you are within a few thousand dollars of $25,000, $32,000, $34,000, or $44,000, the timing of an IRA withdrawal or a Roth conversion is worth more than the raise itself.

3. Check whether IRMAA applies to you. The income-related monthly adjustment amount is a Part B surcharge based on your tax return from two years ago. A one-time event back then, selling a house or a large conversion, can raise this year's premium well above the standard $209.50.

4. Budget from the deposit, not the percentage. Work from the net figure on your December notice. A useful sanity check is to run your own spending through an inflation calculator and compare it against 3.6%, because your household's rate is rarely the published one, as we explained in why your personal inflation rate differs from the headline.

Frequently Asked Questions

How much is the Social Security COLA this year?

It is 3.6%. For the average retired worker that raises the monthly benefit from about $2,095 to about $2,170, an increase near $75 a month or $900 a year. CBS News reported the announcement, which covers more than 75 million beneficiaries.

When does the Social Security increase take effect?

With January benefit payments. People receiving Supplemental Security Income see it one day earlier, on December 31, because of how that program's payment calendar falls.

Why is my Social Security raise smaller than the COLA?

Usually the Medicare Part B premium, which is deducted from your benefit before it is paid. With the premium projected to rise $6.60 a month, close to 9% of the average raise disappears before the deposit. A higher IRMAA surcharge or federal tax withholding can reduce it further.

Is Social Security taxed?

It can be. If your provisional income exceeds $25,000 filing single or $32,000 filing jointly, up to 50% of your benefits are taxable, rising to 85% above $34,000 and $44,000. Those thresholds have not been adjusted since 1984 and 1993, so more retirees cross them every year.

What is CPI-E and would it give a bigger COLA?

CPI-E is an experimental Bureau of Labor Statistics index tracking spending by Americans 62 and older, published since 1982. It weights medical care and housing more heavily than CPI-W. Analysis from The Senior Citizens League found it would have produced a larger adjustment in eight of ten recent years, but the law requires CPI-W and only Congress can change that.

Treat the Headline as a Starting Point

A 3.6% adjustment is real money, and it is larger than the program has delivered in most recent years. It is also measured with the wrong basket, paid a season late, reduced by a premium you do not control, and taxed against a line drawn in 1984.

None of those four is going to change before January. What you can change is whether the raise quietly pushes you across a tax threshold while you are not looking. That part is arithmetic, and you have until December 31 to do it.

Read the notice. Then run the numbers on your own household, because the average retiree does not live in your house.

Disclaimer: This article is for informational purposes only and does not constitute financial or tax advice. Benefit amounts, premiums, and tax thresholds vary by individual circumstances and some figures here are projections rather than final published rates. Always consult a qualified financial advisor or tax professional before making decisions about retirement income.