The tax on a pension while you are still working is federal ordinary income tax, applied to the pension and your wages together on the same return. Because the two income streams stack, pension dollars get taxed at your top marginal rate, not the low rate your salary alone might suggest, and the combined total can also make your Social Security benefits taxable and leave you under-withheld. The 2026 standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly; every dollar of pension above what your deductions absorb is taxable at your applicable rate.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
Can You Even Draw the Pension While Still Employed?
If your salary comes from a different employer than the one paying the pension, there is no issue. You separated from the pension sponsor, so the payments start on their normal schedule.
If the same employer signs both checks, federal law lets a defined benefit plan pay benefits to an employee who has reached age 59½ without requiring separation from service first. The prior threshold was age 62.2Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans Plans are not required to offer in-service distributions, so check the plan document before you count on one.
Distributions taken before 59½ carry a 10% additional tax on top of regular income tax.3Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions One useful carve-out: if you separate from service during or after the year you turn 55, the qualified plan from that employer is not hit with the penalty. Public safety employees get the same treatment starting at 50.4Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts The rule covers qualified employer plans only, not IRAs.
How the Pension and Your Salary Get Taxed Together
Pension payments from a qualified employer plan are subject to federal income tax withholding, and all or part of each payment is taxable.5Internal Revenue Service. Topic No. 410, Pensions and Annuities Most traditional pensions were funded with pre-tax dollars, so the deferred tax bill comes due when the money comes out, whether or not you are still working. If you made after-tax contributions during your career, a small slice of each payment returns to you tax-free under the IRS’s simplified method, and the rest is fully taxable.6Internal Revenue Service. Publication 575, Pension and Annuity Income
Because the federal system is progressive, adding a pension on top of wages taxes those pension dollars at the top of your stack. The 2026 brackets:
- 10% up to $12,400 (single) or $24,800 (married filing jointly)
- 12% to $50,400 (single) or $100,800 (jointly)
- 22% to $105,700 (single) or $211,400 (jointly)
- 24% to $201,775 (single) or $403,550 (jointly)
- 32% to $256,225 (single) or $512,450 (jointly)
- 35% to $640,600 (single) or $768,700 (jointly)
- 37% above those figures
If an $80,000 salary already fills your 12% and 22% brackets as a single filer, the first dollars of pension income begin at 22% and climb from there. The bracket only applies to the income above each threshold, so your earlier dollars are still taxed at their lower rates. The marginal rate on the pension itself, though, is what determines whether the after-tax benefit is worth what you thought.
What Payroll Taxes Apply, and What Doesn’t
Wages carry FICA: 6.2% Social Security and 1.45% Medicare, matched by your employer.7Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates Pension distributions are exempt from FICA. That 7.65% gap gives a pension dollar a real edge over a wage dollar at the same marginal income tax rate.
An additional 0.9% Medicare tax applies to wages over $200,000 in a calendar year for withholding purposes.7Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates Pension income doesn’t count toward that wage threshold and isn’t subject to the additional Medicare tax. Pension income is also outside the 3.8% net investment income tax that applies to investment earnings above certain income levels.8Internal Revenue Service. Questions and Answers on the Net Investment Income Tax Watch the indirect effect, though: the pension raises your adjusted gross income, which can push investment earnings past the threshold where that 3.8% surtax attaches.
If You’re Also Collecting Social Security
Two separate rules matter here. The first is the Social Security earnings test, which reduces benefits only for wages and self-employment income before you reach full retirement age. Pension income, annuities, and investment income do not count toward the limit.9Social Security Administration. Receiving Benefits While Working
For 2026, if you are under full retirement age for the entire year, the earnings limit is $24,480, and the SSA deducts $1 in benefits for every $2 you earn above it. In the year you reach full retirement age, the limit is $65,160 and the reduction is $1 for every $3. Once you hit full retirement age, the test disappears.9Social Security Administration. Receiving Benefits While Working
The second rule is the taxation of the benefits themselves. Your “combined income” is your adjusted gross income plus nontaxable interest plus half your Social Security benefits. Because a pension and wages both inflate AGI, working retirees routinely land in the range where up to 85% of benefits become taxable. The thresholds have never been indexed for inflation:
- Single filers: combined income between $25,000 and $34,000 makes up to 50% of benefits taxable; above $34,000, up to 85%.
- Married filing jointly: between $32,000 and $44,000, up to 50% taxable; above $44,000, up to 85%.
Almost anyone collecting a salary, a pension, and Social Security at the same time will clear the $34,000 or $44,000 line, meaning 85 cents of every benefit dollar is taxable. This is the single largest source of surprise bills for working retirees.
Fix the Withholding Before It Bites You
Two payers, two sets of default withholding, and neither one knows about the other. Your employer withholds based on your Form W-4; your pension administrator withholds based on Form W-4P.11Internal Revenue Service. About Form W-4P, Withholding Certificate for Periodic Pension or Annuity Payments Each one treats its payments as if they were your only income, and the arithmetic falls short.
The 2026 Form W-4P includes a step for people who have income from a job or more than one pension.12Internal Revenue Service. Form W-4P 2026 – Withholding Certificate for Periodic Pension or Annuity Payments Use it to request additional withholding from either payer, or both. The IRS Tax Withholding Estimator on irs.gov will run the combined numbers.
Getting the total wrong triggers an underpayment penalty. You’ll generally avoid it if your withholding and estimated payments cover at least 90% of your current-year tax or 100% of last year’s tax, whichever is smaller.13Internal Revenue Service. Topic No. 306, Penalty for Underpayment of Estimated Tax If your pension started mid-year, aiming at 100% of last year’s liability is the safer path while you figure out the new picture.
Offsetting the Hit
Receiving pension payments doesn’t disqualify you from contributing to your current employer’s 401(k). For 2026, the elective deferral limit is $24,500, plus an $8,000 catch-up at age 50 and older, for a total of $32,500.14Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions Under SECURE 2.0, workers between ages 60 and 63 get a super catch-up of $11,250 in place of the standard $8,000, allowing up to $35,750 if the plan permits it.15Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 Each dollar you defer trims taxable income for the year, taking some of the sting out of stacking a pension on top of a paycheck.
The Still-Working RMD Exception
Required minimum distributions generally start at age 73.16Internal Revenue Service. Retirement Topics – Required Minimum Distributions (RMDs) A still-working exception lets you defer RMDs from your current employer’s plan if you do not own more than 5% of the sponsoring company. The exception covers only that current plan, not IRAs, former employer plans, or accounts you rolled over. Whether your plan offers it depends on the plan document. If you qualify, that’s one more income stream kept off your return each year.
Then There’s Your State
State treatment of pension income varies widely. Several states have no personal income tax at all. A handful specifically exempt pension income while still taxing wages. Others offer a partial exclusion up to a set dollar amount, and others tax the pension like any other earnings. Before you decide whether drawing a pension while still working actually pays off, check your state revenue department’s rules for retirement income; the difference between full exemption and full taxation can change the answer.