The 2026 COLA will likely be smaller than recent years, but the exact amount won't be known until September 2025

The Cost of Living Adjustment (COLA) for 2026 will be announced in October 2025 and take effect in January 2026. Based on how inflation has moved through 2024 and early 2025, experts expect the adjustment to be lower than the 8.7% increase retirees received in 2024 — but higher than the 3.2% increase in 2023. The Social Security Administration calculates COLA using the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), measured from the third quarter of one year to the third quarter of the next.

The reason the 2026 COLA concerns many people is that smaller adjustments mean smaller monthly checks at a time when healthcare costs, housing, and food prices remain elevated. For someone receiving $1,800 per month, even a 2% COLA versus a 5% COLA means a difference of roughly $54 per month — or $648 per year. Over time, that gap compounds.

You cannot change what the COLA will be, but you can plan around it. Understanding how COLA works, what factors influence it, and how it affects your benefits helps you make decisions about when to claim, how much to save, and whether you need to adjust your retirement budget.

Key Takeaways

  • The 2026 COLA will be announced in October 2025 and is expected to be lower than recent years but will not be finalized until then.
  • COLA is calculated using inflation data from the third quarter of each year, so current economic conditions matter more than predictions.
  • A smaller COLA means your monthly benefit increases by a smaller dollar amount, which affects your long-term purchasing power in retirement.
  • If you have not yet claimed Social Security, the timing of your claim can influence how COLA increases affect your lifetime benefits.
  • Planning your retirement budget around a conservative COLA estimate protects you if the adjustment is smaller than you hoped.

How the COLA calculation actually works

Social Security calculates COLA by comparing the Consumer Price Index for Urban Wage Earners and Clerical Workers in the third quarter of the current year to the third quarter of the previous year. If inflation has risen, beneficiaries receive a percentage increase equal to that rise. If inflation has fallen or stayed flat, COLA is zero — benefits do not decrease.

The third quarter runs from July through September. So the 2026 COLA will be based on price data collected from July, August, and September 2025, compared to the same months in 2024. This means the announcement in October 2025 reflects actual inflation that has already happened, not a prediction. You will know the exact number only after that data is published.

The CPI-W measures prices for food, energy, housing, transportation, medical care, and other goods and services that urban wage earners typically buy. It does not measure prices for rural areas or retirees specifically, which is one reason some people argue it does not reflect the true cost of living for older adults — particularly for healthcare and prescription drugs.

Why 2026 COLA concerns are different from 2024

In 2024, beneficiaries received an 8.7% COLA — the third consecutive year of increases above 3%. That was driven by the inflation spike that followed the pandemic. Many retirees and people planning retirement grew accustomed to larger adjustments and may have built budgets around that trend continuing.

The concern about 2026 is that inflation has cooled from its 2022 peak, which means COLA is likely to cool as well. If inflation stays in the 2% to 3% range through mid-2025, the 2026 COLA could fall to that level or lower. That is not a crisis — it is a return to historical norms — but it does mean smaller monthly increases than retirees have received recently.

For people already retired, a smaller COLA simply means a smaller raise. For people still working and deciding when to claim, it adds another factor to consider: if COLA will be smaller going forward, claiming earlier might capture more years of adjustments, even if each adjustment is smaller. This is one reason financial advisors suggest running multiple scenarios based on different COLA assumptions.

What a lower COLA means for your monthly benefit

COLA is applied as a percentage to your current benefit amount. If you receive $2,000 per month and COLA is 3%, your new benefit is $2,060. If COLA is 2%, your new benefit is $2,040. The difference is $20 per month, or $240 per year.

Over a 20-year retirement, that $20 monthly difference compounds. At 3% COLA, your benefit grows to roughly $3,600 per month by year 20. At 2% COLA, it grows to roughly $3,300 per month. The gap widens as time passes, which is why even small differences in COLA matter for long-term planning.

The impact is larger for people with higher benefits. Someone receiving $3,500 per month will see a $35 monthly difference between a 3% and 2% COLA — or $420 per year. Someone receiving $1,200 per month will see a $12 monthly difference.

How inflation data through 2025 shapes expectations

Inflation data from early 2025 suggests the COLA for 2026 will likely fall between 2% and 4%, though this is not certain. The third quarter of 2025 — the months that actually determine COLA — has not yet occurred. Economic conditions can shift, energy prices can spike, and unexpected events can move inflation in either direction.

What matters for planning is that you should not assume COLA will stay at 8.7% or even at 5%. Building a retirement budget around a conservative estimate — such as 2.5% or 3% annual COLA — protects you if the actual adjustment is smaller. If COLA turns out to be higher, you have a buffer. If it is lower, you are not caught short.

Some financial advisors suggest planning for zero COLA in the first few years of retirement, then assuming 2% to 3% thereafter. This approach is conservative but realistic given historical patterns and current economic conditions.

Decisions about claiming age and COLA

If you have not yet claimed Social Security, the expected COLA for 2026 is one factor among many in deciding when to claim. Claiming at 62 gives you smaller monthly benefits but more years of COLA adjustments. Claiming at 70 gives you larger monthly benefits but fewer years of adjustments before you reach life expectancy.

A lower COLA environment slightly favors claiming earlier, because each year of delay means you miss out on adjustments that might be smaller anyway. However, this effect is small compared to the permanent increase in your monthly benefit from delaying. Someone who delays from 62 to 70 receives roughly 24% more per month for life — a much larger gain than COLA differences over eight years.

The real value of understanding COLA is that it helps you model different scenarios. If you claim at 62 and COLA averages 2.5%, your benefit grows to X by age 80. If you claim at 70 and COLA averages 2.5%, your benefit grows to Y. Comparing those two paths with realistic COLA assumptions gives you better information than assuming COLA will be high or ignoring it altogether.

Planning your retirement budget around uncertain COLA

The safest approach is to calculate your essential expenses — housing, food, utilities, healthcare — and then check whether your Social Security benefit, even with a conservative COLA assumption, covers those costs. If it does not, you need to plan for other income sources: savings, part-time work, a pension, or a spouse's benefit.

If your essential expenses are covered by Social Security with a 2% COLA assumption, then you have room for discretionary spending or unexpected costs. If you are relying on a 5% COLA to make the budget work, you are taking a risk.

You can also adjust your retirement date or your claiming age based on COLA expectations. If you expect COLA to be low, working a few more years and delaying your claim might make sense. If you expect COLA to be high, claiming earlier might be reasonable. The key is making the decision consciously, with realistic numbers, rather than hoping inflation will cooperate.

Frequently Asked Questions

When will I know the exact 2026 COLA?

The Social Security Administration announces COLA in October of the year before it takes effect. So the 2026 COLA will be announced in October 2025. The adjustment takes effect in January 2026 and appears in your first payment that month.

Can I do anything to increase my COLA?

No. COLA is set by the government based on inflation data and applies to all beneficiaries equally. You cannot negotiate a higher adjustment or opt out. The only way to increase your benefit is to delay claiming, which raises your monthly amount permanently.

What if COLA is zero in 2026?

If inflation falls or stays flat, COLA can be zero, meaning your benefit does not increase. This has happened before — most recently in 2010 and 2011. Your benefit stays the same, but you do not receive a raise. This is rare but possible.

Does COLA affect Medicare premiums?

Yes. Medicare Part B and Part D premiums are often adjusted based on COLA. A smaller COLA can mean smaller premium increases, which is one reason some retirees actually prefer lower COLA — it means less of their raise goes to healthcare costs. However, this varies by year and by your specific situation.

Should I claim Social Security early because COLA will be low?

Probably not, unless you have other reasons to claim early. The permanent increase in your monthly benefit from delaying outweighs the effect of lower COLA adjustments. Run the numbers with a realistic COLA assumption — around 2.5% to 3% — and compare claiming at different ages to see which makes sense for your situation.