The 2027 Social Security COLA Is 3.6%: What Actually Changes in January

The Social Security Administration announced the 2027 Social Security COLA on October 14, 2026. Benefits for roughly 76 million Americans receiving Social Security or Supplemental Security Income will rise 3.6 percent (SSA). That single number moves several others with it — the wage base, the earnings test, the maximum benefit — and interacts with two it does not change: Medicare premiums and the thresholds that decide how much of a benefit is taxable.

How the 2027 Social Security COLA is calculated

The adjustment is not a policy decision. It is an arithmetic comparison of one price index against itself, one year apart. Social Security uses the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), published monthly by the Bureau of Labor Statistics. SSA averages July, August, and September, compares that average to the same quarter in the last year a COLA took effect, and rounds to the nearest tenth of a percent (SSA, Latest Cost-of-Living Adjustment).

Here is the computation behind the 2027 number:

328.746 divided by 317.265, less one, is 3.6 percent. Two features of that method surprise people every year.

•     The measurement window closes in September. Prices in October, November, and December do not count toward the following January’s increase, no matter what they do.

•     CPI-W tracks the spending of urban wage earners and clerical workers, a working-age population. It weights medical care less heavily than a typical retiree’s budget does, so a household whose largest increases are in health care and property insurance can see a 3.6 percent adjustment and still feel behind.

What is confirmed for 2027

SSA published the full set of adjusted figures alongside the announcement (2027 COLA fact sheet):

Estimated average monthly benefits move as follows:

The increase applies to Social Security benefits beginning with January 2027 payments; SSI payments rise effective December 31, 2026. COLA notices appear in a my Social Security account starting in late November 2026, and SSA has set November 18, 2026 as the date by which an account must be set up for digital notices; mailed notices follow in December (SSA).

The wage base, for anyone still earning

The maximum earnings subject to Social Security tax rises from $184,500 to $192,300. Payroll tax rates do not change: 7.65 percent for employees, 15.30 percent for the self-employed, with no cap on the Medicare portion. For someone earning above both ceilings, the $7,800 increase in the wage base means $483.60 more in Social Security tax at the 6.2 percent employee rate, and twice that for a self-employed owner paying both halves.

The earnings test, for anyone claiming early and still working

If you are under full retirement age for all of 2027 and collecting benefits, SSA withholds $1 for every $2 of earnings above $25,560. In the year you reach full retirement age, the withholding drops to $1 for every $3 above $67,920, counting only earnings in the months before the month you reach it (SSA). Full retirement age is 67 for anyone born in 1960 or later (SSA).

The persistent misunderstanding here is that withheld benefits are gone. They are not. At full retirement age SSA recalculates the benefit to credit the withheld months, raising the monthly amount from that point forward. The earnings test is a deferral, not a penalty, though it is still a real cash-flow event in that year.

Why a 3.6 percent raise is not a 3.6 percent raise

For most retirees the Medicare Part B premium is deducted from the Social Security payment before it is deposited, so the net change is what matters. CMS has not yet announced the 2027 Part B premium, deductible, or income-related tiers; those usually arrive in November, and anything circulating now is a projection. The known 2026 baseline is a standard premium of $202.90 per month and an annual deductible of $283 (CMS).

Against an average retired-worker increase of about $75 a month, a Part B increase of any size takes a visible share of the raise. Until CMS publishes, half of the January deposit equation is still missing.

The second Medicare variable is the income-related monthly adjustment amount, or IRMAA, which is set from a tax return filed about two years earlier. For 2026 premiums, SSA generally uses the 2024 return (SSA). In 2026 the first tier begins above $109,000 of modified adjusted gross income for an individual and $218,000 for a joint return, adding $81.20 a month to the standard premium for a total of $284.10 (CMS).

That lookback is why a one-time event — a Roth conversion, a business sale, a large capital gain — shows up as a higher premium two years later, long after the cash has been spent or reinvested. If income has since fallen because of a qualifying life-changing event, including stopping work or reducing hours, Form SSA-44 asks SSA to use a more recent year instead.

The thresholds that never get a COLA

Benefits become partly taxable once "combined income" — one-half of benefits plus all other income, including tax-exempt interest — exceeds a base amount: $25,000 for a single filer, $32,000 for a joint return. Between the base amount and $34,000 (single) or $44,000 (joint), up to 50 percent of benefits are taxable; above that, up to 85 percent (IRS Publication 915).

Those figures are written into the statute and are not indexed for inflation, while every COLA raises the benefit side of the calculation. The thresholds tighten a little each year without anyone changing a law.

A worked example

Consider a hypothetical Baton Rouge couple, both retired and filing jointly, receiving the estimated average aged-couple benefit: $3,238 a month in 2026, or $38,856 for the year, becoming $3,355 a month, or $40,260, after the COLA. They also withdraw $24,000 a year from a traditional IRA, unchanged.

•     2026 combined income: half of $38,856 is $19,428, plus $24,000, equals $43,428 — just under the $44,000 joint threshold, so up to 50 percent of benefits are taxable.

•     2027 combined income: half of $40,260 is $20,130, plus $24,000, equals $44,130 — over the threshold, so the 85 percent tier now applies to income above it.

Nothing about the couple’s behavior changed. The COLA alone moved them across a line, and from there each additional dollar of combined income can pull up to 85 cents of benefits into taxable income. It is why the size of an IRA withdrawal and the size of a Social Security benefit are not independent decisions.

One current provision softens the result without changing the math above. For tax years 2025 through 2028, taxpayers 65 or older may claim an additional $6,000 deduction per eligible individual, phasing out above $75,000 of modified adjusted gross income ($150,000 joint) (IRS). It is a deduction against taxable income, not an exclusion of benefits, so it does not reduce combined income. It expires after 2028 under current law.

What the COLA does, and does not do, in Louisiana

Louisiana does not tax Social Security benefits. Benefits taxed on the federal return may be excluded from Louisiana taxable income under R.S. 47:44.2. The state also allows an annual retirement income exclusion of up to $12,000 for taxpayers 65 or older, per qualifying spouse (Louisiana Department of Revenue). The individual income tax has been a flat 3 percent for taxable periods beginning on or after January 1, 2025 (LDR).

So the COLA increases federal exposure without increasing state exposure on the benefit itself. The IRA withdrawal that pushes combined income over a federal threshold is still Louisiana income beyond the $12,000 exclusion — but at a flat rate, which removes the bracket-stacking question that complicates the same analysis in graduated-rate states.

Where this usually goes wrong

1.   Treating the COLA as a measure of your own inflation. CPI-W is a working-household index — the statutory yardstick, not a retiree budget.

2.   Comparing the announced percentage to the deposit. Part B comes out first, and the 2027 premium is not published yet.

3.   Forgetting the two-year lookback. The conversion or sale done in 2025 is what sets the 2027 premium.

4.   Assuming withheld earnings-test benefits are forfeited. They are credited back at full retirement age.

5.   Assuming the $25,000 and $32,000 thresholds rise with inflation. They do not.

Frequently asked questions

How much is the Social Security COLA for 2027?

3.6 percent. SSA announced it on October 14, 2026, and it applies to Social Security benefits and SSI payments.

When does the 2027 COLA take effect?

Social Security benefits reflect it beginning with January 2027 payments; SSI payments increase effective December 31, 2026. Notices are available online in late November 2026 and mailed in December.

How much will Medicare Part B cost in 2027?

CMS has not announced it. The 2026 standard premium is $202.90 a month with a $283 annual deductible. The 2027 figures are typically released in November; any number published before then is an estimate.

Does the 2027 COLA increase my taxes?

It can. A larger benefit raises combined income, and the thresholds that determine how much of it is taxable — $25,000 single and $32,000 joint, with a second tier at $34,000 and $44,000 — are not adjusted for inflation.

How much can I earn in 2027 while collecting Social Security?

If you are under full retirement age for the whole year, $25,560 before withholding begins at $1 for every $2 above it. In the year you reach full retirement age, $67,920, with $1 withheld for every $3 above it, counting only months before that one.

Does Louisiana tax Social Security benefits?

No. Benefits taxed on the federal return may be excluded from Louisiana taxable income, and taxpayers 65 or older may also exclude up to $12,000 of other annual retirement income.

Sources

2027 COLA announcement, fact sheet, and CPI-W computation; earnings test; full retirement age; IRMAA and Form SSA-44 — ssa.gov. 2026 Medicare Part B premiums, deductibles, and income-related adjustment amounts — cms.gov. Taxation of benefits and the enhanced deduction for seniors — irs.gov. Retirement income exclusions and the state income tax rate — revenue.louisiana.gov.

Disclosures

This material is for informational purposes only and is not intended as tax, legal, or investment advice. Neither Menard Wealth Management nor its representatives may give tax or legal advice. Please consult your qualified tax and legal professionals regarding your specific situation. Benefit amounts, thresholds, and tax provisions cited are for the 2026 and 2027 plan or tax years as published and are subject to change.

Figures shown in examples are hypothetical and for illustration only. They do not represent the experience of any client and are not a projection of any individual’s results.

FACT CHECK

Every figure, date, age, limit, and threshold used in the post, with the source it was verified against. All sources are primary (SSA, IRS, CMS, Louisiana Department of Revenue).