What does "imputed income" mean on my paycheck?

Imputed income is non-cash compensation that the IRS treats as taxable wages. Common examples are employer-paid group term life insurance above $50,000, employer-paid medical premiums for a domestic partner or non-tax-dependent, personal use of a company car, and employer education benefits above the IRS §127 cap. It increases your federal taxable wages, FICA wages, and state wages, but you do not receive it as cash.

Does imputed income reduce my take-home pay?

Yes, indirectly. The imputed amount itself is a wash on the cash side — it appears as an earning and then as an equal back-out adjustment. What does reduce your take-home is the extra federal, FICA, and state tax withheld on the imputed amount. At a 12% federal bracket plus 7.65% FICA plus 5% state, $100 of imputed income reduces your cash net by about $25.

Where does imputed income show on my W-2?

Imputed income amounts roll into Box 1 (federal taxable wages), Box 3 (Social Security wages, up to the annual cap), Box 5 (Medicare wages), and the matching state wage boxes. Specific types also appear in Box 12 with a letter code — Code C for group term life over $50,000, for example. Per IRS Publication 15-B.

Is employer-paid health insurance imputed income?

Not for you, your spouse, or your tax-dependents under IRC §152. Employer-paid medical premiums for those people are excluded from your taxable wages. But premiums paid for a domestic partner who does NOT qualify as a tax-dependent ARE imputed income — typically the fair market value of the coverage above the employee-only portion.

What Is Imputed Income on My Paycheck?

You opened the benefits portal last quarter and bumped your employer-paid group life coverage up to $200,000. Three pay periods later, you glance at your stub and see something new at the bottom of the earnings section: GTL Imp Inc $10.38. Gross is $10 higher than last period. Cash net is $2.50 lower. You didn't pick up overtime and you definitely didn't cash a check for ten extra dollars.

That's imputed income. Here's what it's doing on your stub.

The mechanic: taxable, but not cash

Imputed income is non-cash compensation that the IRS treats as taxable wages. Authority is IRC §61 (gross income includes the value of fringe benefits) and IRS Publication 15-B (the employer's tax guide to fringe benefits, where each common type is defined and valued).

On the stub, payroll handles it in three moves:

The imputed value gets added to your earnings, so your taxable wages go up by that amount.
Federal income tax, FICA (Social Security and Medicare), and state tax are recomputed on the higher taxable base.
The imputed value is then subtracted from your pay as a non-cash adjustment, so the cash deposit doesn't include it. The deposit only feels the extra tax that step 2 generated.

Net effect: gross taxable wages on the stub go up by the full imputed amount. Cash net goes down by the tax on the imputed amount. The principal of the imputed value never moves into or out of your bank account.

The four kinds you're most likely to see

Imputed-income line items can be obscure (employer-provided meals, certain awards, employer-provided lodging), but on a typical W-2 paycheck, the four common types account for almost all of them.

1. Group term life insurance above $50,000 (IRC §79)

Employer-provided group term life coverage above $50,000 generates imputed income on the excess. The dollar value isn't the premium your employer paid; it's a uniform monthly rate from the IRS Uniform Premiums table (reproduced in Pub 15-B, with the underlying authority at Treas. Reg. §1.79-3) based on your age, applied to coverage above the $50,000 threshold.

Selected rates (monthly cost per $1,000 of coverage):

Age 35–39: $0.09
Age 40–44: $0.10
Age 45–49: $0.15
Age 50–54: $0.23
Age 55–59: $0.43

The math: (your total coverage − $50,000) ÷ $1,000 × monthly rate × months in the pay period. That's the imputed amount that lands on the stub.

2. Employer-paid medical for a domestic partner or non-tax-dependent

Employer-paid health, dental, or vision premiums for you, your spouse, and your tax-dependents under IRC §152 are excluded from your taxable wages. Premiums for a domestic partner (or a child of a domestic partner who isn't your tax-dependent) generally are not excluded.

Payroll typically imputes the fair market value of the partner's portion of the coverage: the difference between the employee-only premium and the employee-plus-one (or family) premium. That difference shows on the stub as imputed income, period after period, for as long as the partner is enrolled.

3. Personal use of a company car

If your employer provides a vehicle you can use for personal trips (commuting counts), the personal-use portion is imputed income. Pub 15-B documents three valuation methods:

Cents-per-mile: personal miles × the IRS standard business mileage rate. Available only if the vehicle is regularly used in the employer's business and has a fair market value at or below an annual IRS-published cap.
Annual Lease Value (ALV): personal-use percentage × the ALV from Pub 15-B Table 3-1, plus a 5.5¢/mile add-on for fuel if the employer provides it.
Commuting valuation: $1.50 per one-way commute, available only if the employer has a written policy restricting non-commute personal use.

Your employer picks the method and applies it consistently. The result lands on the stub as imputed income tied to the vehicle benefit.

4. Employer education or adoption benefits above the IRS cap

Two §-coded exclusions cap how much employer education or adoption assistance is tax-free:

IRC §127 (employer educational assistance): up to $5,250 per employee per year is excluded from taxable wages. Amounts above $5,250 are imputed income.
IRC §137 (employer adoption assistance): the per-child cap is inflation-adjusted annually. Amounts above the cap are imputed income.

These typically appear as one-off imputed lines on the stubs where the benefit was paid, not as a recurring per-period charge.

A worked example: $200,000 group term life at age 47

You're 47, on a biweekly schedule, earning $25 an hour for 80 hours: $2,000 gross cash this period. Your employer provides $200,000 of group term life as part of benefits.

Pub 15-B Table 2-2 monthly rate for age 45–49: $0.15 per $1,000 of coverage. Coverage above the $50,000 threshold: $150,000.

Monthly imputed: 150 × $0.15 = $22.50
Biweekly imputed (one period out of 26): $22.50 × 12 ÷ 26 = $10.38

That's the GTL Imp Inc line. Here's what happens around it:

Federal taxable wages: $2,000 + $10.38 = $2,010.38
FICA taxable wages: $2,000 + $10.38 = $2,010.38
Federal tax on the extra $10.38 at a 12% marginal rate: about $1.25
Social Security at 6.2% on the extra: $0.64
Medicare at 1.45% on the extra: $0.15
State tax at 5% on the extra: $0.52
Incremental tax total: about $2.56
Imputed amount backed out of cash earnings: −$10.38

Your cash deposit drops by about $2.56 versus what it would have been if the GTL benefit didn't exist. The $10.38 itself flowed in and back out. The only thing that actually left your paycheck is the tax on it.

Same mechanic applies to the other three types. A $200/month domestic-partner medical imputation reduces cash net by about $50 in tax. A $300 personal-use-of-car imputation reduces cash net by about $75. The proportions shift with your tax bracket and state.

How imputed income shows on your W-2

Year-end, your imputed amounts roll forward into the W-2. Per Pub 15-B:

Box 1 (Federal wages, tips, and other compensation): includes the full year's imputed amounts.
Box 3 (Social Security wages): includes imputed amounts, capped at the annual Social Security wage base ($184,500 for 2026).
Box 5 (Medicare wages): includes imputed amounts (no cap).
State wage boxes (16, 17): include state-taxable imputed amounts per your state's conformity rules.
Box 12: specific imputed types get a letter code. Group term life above $50,000 is Code C. Other codes apply to other fringe-benefit categories.

Reconciling: your December YTD wage lines on the stub plus the imputed YTDs should match the corresponding W-2 boxes. If they don't, raise it with payroll before you file. For the stub-side reconciliation walkthrough, see how to read a pay stub.

What to check when imputed income shows on your stub

Imputed income is non-cash compensation. It inflates taxable wages but doesn't arrive as cash.
The imputed value appears as earnings AND as a back-out adjustment in the same period. Cash net moves only by the tax on the imputed value, not the value itself.
Group term life imputation kicks in only on coverage above $50,000 and uses Pub 15-B Table 2-2 rates, not the actual premium.
Domestic partner / non-tax-dependent medical premiums are imputed at fair market value. Tax-dependent partners under IRC §152 are excluded.
Personal use of a company car is imputed via one of three Pub 15-B valuation methods. Your employer picks; the result is consistent period to period.
Year-end, imputed amounts flow into Box 1, Box 3, Box 5, and any applicable Box 12 letter code on your W-2.

Decode the imputed line on your next stub

Once you can name it, imputed income stops being mysterious. The remaining work is connecting the specific line on your stub to its underlying benefit and confirming the math matches Pub 15-B's method.

Scan your next stub and let the imputed lines name themselves.

Last verified against IRS Publication 15-B, IRC §§61, 79, 125, 127, 137, and 152 on June 5, 2026. The Pub 15-B Table 2-2 rates quoted above are the published uniform monthly costs per $1,000 of group term life coverage. Worked-example dollar figures are illustrative; your specific stub will differ by coverage level, age bracket, filing status, state, and pre-tax deduction mix. This guide is informational and not tax advice; for situation-specific questions, ask your employer's payroll or benefits team, or a qualified professional.