What Does the 2027 Social Security COLA Mean for High Earners? The 3.6% Raise, the $192,300 Wage Base and the Earnings Test

Social Security benefits go up 3.6% starting with January 2027 payments (SSA press release). For the average retired worker, that's about $75 more a month. But the same announcement changes the numbers for people who are still working: the wage base rises to $192,300, and the earnings limit for early claimers goes up too (SSA 2027 fact sheet).

As a Houston CPA and financial planner, I find that the COLA headline gets all the attention while the working-years figures quietly change payroll taxes, S corporation salary math and the timing decision for anyone thinking about claiming early. Here's what changes and what I'd do about each.

This is general education, not advice for your specific situation.

How much is the 2027 Social Security COLA?

The cost-of-living adjustment is 3.6%, measured by the increase in the CPI-W from the third quarter of 2025 to the third quarter of 2026 (SSA 2027 fact sheet). It's larger than the 2.8% adjustment for 2026 and the biggest since the 8.7% increase for 2023 (SSA COLA history), and it reaches nearly 72 million Social Security beneficiaries. People on SSI see the increase on December 31, 2026 (SSA press release).

Source: SSA 2027 fact sheet.

To estimate your own increase, multiply your current gross benefit by 1.036. A $3,000 monthly benefit becomes about $3,108 before any Medicare premium is deducted. Your exact figure will be in your COLA notice.

What changes for people who are still working?

Three figures matter if you haven't claimed yet.

The wage base. Social Security tax applies to the first $192,300 of wages or self-employment income in 2027, up from $184,500 (SSA 2027 fact sheet). The rates stay at 6.2% for employees and 12.4% for the self-employed. For a W-2 employee who earns above the cap, that's up to $483.60 more in Social Security tax next year, and for someone self-employed, up to $967.20 more. Those are my calculations from the published figures, not SSA numbers.

No change to the Medicare side. Medicare tax has no wage cap, and the additional 0.9% Medicare tax still begins at $200,000 of wages for single filers and $250,000 for joint filers. Those thresholds are set by statute and aren't indexed (IRS, Questions and Answers for the Additional Medicare Tax).

The quarter of coverage. You earn one credit for each $1,970 of covered earnings in 2027, up to four a year (SSA 2027 fact sheet). Forty credits qualify you for retirement benefits. For most professionals this is a non-issue, but it matters for a spouse who works part time in the family business.

For S corporation owners, the higher wage base changes a calculation I wrote about in how much salary an S corp owner should take. Salary above $192,300 no longer carries Social Security tax, only Medicare tax, so the payroll-tax cost of a higher salary drops off at that point. That doesn't mean a salary should be set at the wage base; reasonable compensation is still the test. It does mean the trade-off between salary and distributions looks different above the cap.

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

If you claim benefits before full retirement age and keep working, the earnings test applies.

Source: SSA 2027 fact sheet.

Two points I make with clients. First, only earnings from work count; investment income, pensions, IRA withdrawals and rental income don't (SSA, Receiving benefits while working). Second, withheld benefits aren't lost. When you reach full retirement age, Social Security recalculates your benefit to give credit for the months benefits were withheld (SSA, Receiving benefits while working). Even so, for a business owner who is still drawing a salary or self-employment income, the earnings test is usually a reason to wait.

Will Medicare premiums eat the COLA?

For most retirees, the Part B premium comes out of the Social Security deposit, so the net raise is the COLA minus the premium increase. The 2027 standard Part B premium and deductible hadn't been announced as of early November 2026; the Medicare & You 2027 handbook says the figures weren't available at printing, and it still shows the 2026 premium of $202.90 (Medicare & You 2027). The Medicare trustees estimated $209.50 for 2027 in their 2026 report, but that's a projection, not an announcement (2026 Medicare Trustees Report). Last year's figures came out in mid-November, so I'd expect the official 2027 numbers soon.

The higher-income surcharge, known as IRMAA, is where my clients usually feel it. For 2026 it applies when 2024 modified adjusted gross income was above $109,000 for a single filer or $218,000 for a joint filer, and Medicare always looks two years back (Medicare & You 2027). The 2027 thresholds will use your 2025 return. If you're doing a Roth conversion before December 31, this year's income sets your 2028 premium, so model it before you convert.

If your income dropped because of retirement, reduced work hours, divorce or another qualifying life-changing event, you can ask Social Security to use a more recent year by filing Form SSA-44 (SSA Form SSA-44). I see people pay a surcharge for a year or two after retiring simply because nobody told them to file it.

Is the COLA taxable?

A bigger benefit is taxed under the same rules as before, and the rules haven't moved in decades. Part of your benefit becomes taxable when half your benefits plus your other income, including tax-exempt interest, exceeds $25,000 for a single filer or $32,000 on a joint return. Up to 85% is taxable above $34,000 and $44,000 (IRS Publication 554). Because those thresholds aren't indexed, each COLA pushes a few more retirees over them.

Two offsets help for 2025 through 2028. Taxpayers 65 and older can claim an additional $6,000 deduction per person, or $12,000 on a joint return when both spouses qualify, on top of the regular additional standard deduction for age. It phases out when modified adjusted gross income exceeds $75,000, or $150,000 on a joint return, and it requires a valid Social Security number (IRS Publication 554). For most of my clients the phase-out eliminates it, but it's worth checking for parents.

What should I do before January?

• Check your my Social Security account in late November. Your personal COLA notice, with your new Medicare premium if you're enrolled, appears in the Message Center up to three weeks before the paper notice. You need to set up the account and choose paperless notices by November 18 to see it online (SSA press release).
• Adjust withholding. If you have federal tax withheld from your benefit, a higher benefit may call for a new Form W-4V. If you pay estimates, add the increase to your January calculation.
• Owners: update payroll. Confirm your payroll provider has the $192,300 wage base loaded for the first 2027 payroll, and revisit your salary plan if your compensation is near the cap.
• Early claimers: re-check the earnings test. If you'll be under full retirement age in 2027 and expect to earn more than $25,560, estimate the withholding before you commit to a claiming date.
• File SSA-44 if your income fell. Stopping or reducing work, a divorce or the death of a spouse can qualify you to have your Medicare surcharge recalculated.
• Add it to your year-end list. The COLA, the wage base and your 2026 income all feed into year-end tax planning, especially if you're deciding how much to convert to Roth.

How I can help

The COLA itself requires nothing from you. What takes work is fitting it into the bigger picture: when to claim, how your salary and distributions should look above the wage base, and how this year's income shapes your Medicare premiums two years out. In a working session we can run those numbers together in planning software with your actual earnings record.

Mercer Street's work is billed at $600 per hour with a 2-hour minimum ($1,200). See how working together works, and schedule a consultation when you're ready.