Social Security 2027 COLA: 3.6%, $192,300 Wage Base, Limits

The 2027 numbers next to 2026

Everything below comes from SSA’s 2027 COLA Fact Sheet unless the row says otherwise. The sentence SSA uses for the headline is: “Social Security beneficiaries and Supplemental Security Income (SSI) recipients will receive a 3.6 percent COLA for 2027.”

Source: SSA, “2027 Cost-of-Living Adjustment (COLA) Fact Sheet” (ssa.gov/news/en/cola/factsheets/2027.html); the $11,922.60 maximum tax is stated on SSA’s “Contribution and Benefit Base” page, and the 2026 maximum tax of $11,439.00 is 184,500 x 6.2% (our arithmetic).

The COLA also does not reach the dollar limits that tax your income. SSA notes that the 0.9% additional Medicare tax applies to “individuals with earned income of more than $200,000 ($250,000 for married couples filing jointly)”, and those amounts are the same in 2026 and 2027.

What SSA expects the COLA to do to an average benefit

Source: SSA 2027 COLA Fact Sheet, “Estimated Average Monthly Social Security Benefits Payable in January 2027.” The group averages move by slightly different percentages because SSA rounds each to whole dollars.

The COLA in dollars at your own benefit

The COLA is a flat percentage of the benefit you already receive. These are the exact amounts at round benefit levels (our arithmetic, 3.6% on the 2026 benefit, before any Medicare premium deducted from the check).

The percentage is the same for every beneficiary, so the table scales to any benefit. The last row is a person who already receives the 2026 maximum. A worker who first retires at full retirement age in 2027 gets $4,188, not $4,301, because the new-retiree maximum is a different calculation.

How much of the COLA is taxable

This is the part the news stories skip. IRC section 86(a)(2) includes in gross income the lesser of “85 percent of the social security benefits received during the taxable year” or a sum built on 85% of the excess over the adjusted base amount. Because the base amounts of $25,000 and $32,000 and the adjusted base amounts of $34,000 and $44,000 are written as dollars (section 86(c)), a benefit increase moves more of your provisional income above the lines each year. The full mechanics, including what counts as other income, are in our guide to taxable Social Security with rental and K-1 income.

Because only half of a benefit counts toward the test, each extra benefit dollar adds a different share of itself to taxable income depending on the band: 25 cents in the 50% band, 42.5 cents in the 85% band, and 85 cents once the 85% ceiling is reached. The tables hold other income fixed and add only the 3.6% COLA (our arithmetic; “other income” is adjusted gross income before Social Security plus tax-exempt interest, no other adjustments).

Source: IRC section 86(a), (b), (c) as shown at law.cornell.edu/uscode/text/26/86; benefit amounts are our assumptions; the taxable amounts are our arithmetic from the formula.

Two readings. First, a retiree in the middle band has 57.5 cents of each COLA dollar untaxed; the other 42.5 cents is added to taxable income. At a 22% bracket, $459 of extra taxable benefit costs $100.98 (our arithmetic, illustrative bracket; the 2027 brackets were not published in the sources we read). Second, once the ceiling is reached the COLA is 85% taxable, which is the same share as the benefit itself.

If your other income also rises by 3.6%, the effect compounds. Our arithmetic: a single filer with $30,000 of benefits and $30,000 of other income has $13,850 taxable (46.2% of benefits); with both up 3.6% it is $15,227 (49.0%). A couple with $60,000 of benefits and $40,000 of other income goes from $28,100 (46.8%) to $30,242 (48.7%).

The $192,300 wage base: who it matters to

The taxable maximum is the most earnings on which the 6.2% Social Security tax is paid. SSA states it as “For earnings in 2027, this base is $192,300,” and the tax at that level is $11,922.60 for the employee and the same for the employer. For self-employment income the OASDI rate is 12.4%, so the OASDI part at the full base is $23,845.20 (our arithmetic; Schedule SE sets the actual figure). The Medicare part has no cap.

Source: SSA, “Contribution and Benefit Base,” table of contribution and benefit bases 1937 to 2027.

For an investor who has stopped working, the base is irrelevant: rental income from a passive property, distributions from a fund and REIT dividends are not wages, and SSA describes the base as the limit on “earnings subject to taxation.” It matters if you still draw a salary or consult on a self-employed basis. A person with $250,000 of wages pays the maximum $11,922.60, which is 4.77% of the wages (our arithmetic); the 0.9% additional Medicare tax then applies above $200,000 on top of that. The base grew 62.3% from $118,500 in 2015 to $192,300 in 2027, while the twelve COLAs paid from January 2016 to January 2027 compound to 40.4% (our arithmetic from SSA’s series).

The earnings test and your rental or K-1 income

The retirement earnings test applies only to people below full retirement age. SSA says it withholds benefits when your earnings exceed the exempt amount, and its table notes: “Earnings in or after the month you reach NRA do not count toward the retirement test.” Two examples from the 2027 numbers (our arithmetic):

• A 62-year-old receiving $2,000 a month ($24,000 a year) with $45,000 of net earnings from self-employment (that is, after the 0.9235 factor applied to Schedule C profit): (45,000 − 25,560) ÷ 2 = $9,720 of benefits withheld (our arithmetic). What counts as earnings is on our earnings test page.
• Someone who reaches full retirement age in 2027 and earns $80,000 in the months before: (80,000 − 67,920) ÷ 3 = $4,026.67 withheld.

Withheld benefits are not lost: “Once you reach NRA, your monthly benefit will be increased permanently to account for the months in which benefits were withheld.” What counts is narrow. SSA’s booklet says that if you work for someone else only your wages count, and if you are self-employed “we count only your net earnings from self-employment.” It then says the income that is not counted includes “investment earnings, interest, pensions, annuities, and capital gains.” So dividends from a REIT or BDC, interest and a gain on a property sale are outside the test. Rental income from a passive owner and K-1 ordinary income are not on SSA’s list either way; whether yours is self-employment income depends on your role and the type of entity, which is a tax return question (our reading). Note that this rule is separate from taxation: the same rental income does count toward the section 86 test above.

What a reader can do with this

• Find your own band before January. Add your adjusted gross income before Social Security, tax-exempt interest and half of your benefits, and compare it with the lines in IRC section 86(c). The tables above show what the COLA does in each band.
• Ask whether withholding or estimated tax needs a change. Part of the COLA is taxable in the middle and top bands (our arithmetic). SSA says that account holders can see their COLA notice online from late November, with the exact dates and dollar amounts of the new benefit.
• Check whether you are under the earnings limit. If you claim before full retirement age and have wages or self-employment income, the 2027 limit is $25,560 a year, or $67,920 in the year you reach full retirement age.
• Keep Medicare in view. SSA’s release says “Information about Medicare changes for 2027 will be available at www.medicare.gov,” and the premium appears in your SSA message center from late November. A higher benefit raises the taxable part of it, which feeds the income measure used for Medicare premium surcharges; see our IRMAA guide and the 2026 senior deduction.
• Widowed or filing single? The single-filer lines are lower; see the widow’s tax penalty.

This is analysis of public documents, not investment, legal or tax advice.

FAQ

Sources, read and saved on October 22, 2026: Social Security Administration, “2027 Cost-of-Living Adjustment (COLA) Fact Sheet”; press release of October 14, 2026; “Contribution and Benefit Base”; “Cost-Of-Living Adjustments”; “Exempt Amounts Under the Earnings Test”; “How Work Affects Your Benefits” (2026 edition); 26 U.S.C. 86 (law.cornell.edu). The ssa.gov pages were read from copies held by the Internet Archive because ssa.gov blocks automated requests. Dollar changes in the first table, the benefit tables, the taxable-share tables, the earnings test examples and the compounded figures are our arithmetic from the formulas shown on this page.