What is imputed income?
Imputed income is a benefit's taxable value counted as pay. The IRS's fringe benefit guide (Publication 15-B) says any fringe benefit you provide is taxable and must be included in the recipient's pay unless the law specifically excludes it. When the benefit isn't cash, its value is "imputed" into wages so income tax, social security and Medicare can be worked out on it.
The value is the benefit's fair market value: what the employee would pay a third party for it at arm's length. It isn't what the benefit cost you, and it isn't what the employee thinks it is worth.
Common examples of imputed income
| Benefit | When it is taxable | Year-end form |
|---|---|---|
| Group-term life insurance | Cost of cover over $50,000, less what the employee paid after tax | W-2 boxes 1, 3, 5; box 12 code C |
| Health cover for a non-dependent | Cover for someone who isn't the employee's spouse, tax dependent or child under 27, such as many domestic partners | W-2 boxes 1, 3, 5 |
| Dependent care assistance | Above $7,500 a year from 2026 ($3,750 married filing separately) | W-2 box 10, excess in boxes 1, 3, 5 |
| Educational assistance | Above $5,250 a year, unless it is a working condition benefit | W-2 boxes 1, 3, 5 |
| Personal use of a company car | The value of personal miles, using a Publication 15-B valuation rule | W-2 boxes 1, 3, 5 |
| Gift cards and cash equivalents | Always, whatever the amount: never de minimis | W-2 boxes 1, 3, 5 |
Source: IRS Publication 15-B (2026), read on October 8, 2026. Registered domestic partners aren't married for federal tax purposes, so their cover is excluded only if the partner is the employee's tax dependent. State tax rules can differ. This page is general information, not tax advice.
How imputed income shows on a pay stub
It shows twice. First as an earnings line, so gross pay and the taxable wages include it. Then as an offsetting line under deductions or "non-cash", so net pay comes out the same as if the benefit weren't there, less the extra tax. Labels vary: "Imputed income", "GTL", "IMP", "DP medical" or "Fringe".
| Line | Amount | Why |
|---|---|---|
| Salary | $5,000.00 | Cash pay |
| Imputed income: GTL over $50,000 | $15.00 | Non-cash; added so it is taxed |
| Gross pay | $5,015.00 | |
| Social Security (6.2%) | $310.93 | On $5,015.00 |
| Medicare (1.45%) | $72.72 | On $5,015.00 |
| Federal income tax | From payroll | Withholding on GTL is optional |
| Imputed income offset | −$15.00 | Not paid in cash, so taken back off |
The year-to-date imputed income adds up to what goes on the W-2. For group-term life insurance that is box 12 code C, as well as boxes 1, 3 and 5.
How to calculate imputed life insurance: a worked example
Group-term life insurance is the most common case, and Publication 15-B gives a fixed table for it. An employee aged 45 has $150,000 of employer-paid cover and pays nothing towards it:
- Take off the $50,000 that is tax-free: $150,000 − $50,000 = $100,000.
- Count it in thousands: 100.
- Multiply by the Table 2-2 rate for ages 45 to 49, $0.15 per $1,000 a month: 100 × $0.15 = $15.00 a month.
- Take off anything the employee paid for the cover after tax. Here, nothing, so $15.00 a month is imputed income: $180.00 for the year.
| Age | Cost per $1,000 a month |
|---|---|
| Under 25 | $0.05 |
| 30 to 34 | $0.08 |
| 40 to 44 | $0.10 |
| 45 to 49 | $0.15 |
| 50 to 54 | $0.23 |
| 55 to 59 | $0.43 |
| 60 to 64 | $0.66 |
Social security and Medicare on the $15.00 come to $0.93 and $0.22 a month. The IRS's own example in Publication 15-B: an employee aged 45 with $200,000 of cover who pays $100 a year has $170 of imputed income for the year ($0.15 × 150 × 12 = $270, less $100).
How imputed income is taxed and withheld
- Social security (6.2%, on wages up to $184,500 in 2026) and Medicare (1.45%) apply to taxable fringe benefits, and you pay the matching employer share.
- Federal income tax: you can add the value to regular wages and withhold as usual, or withhold at the 22% supplemental rate. For group-term life insurance, withholding income tax is optional.
- Timing: Publication 15-B lets you treat a non-cash benefit as paid each pay period, quarterly, twice a year or once a year, but at least once a year. Benefits provided in November and December can be treated as paid in the next year.
Adding the value every pay period is the most common choice because the pay stub's year to date then matches the W-2 at every point. Keep the records behind each value with your employment tax records, for at least four years.
Adding imputed income in the pay stub generator
- Enter the cash pay as usual: salary or hours and rate.
- Add an earnings line, for example "Imputed income: GTL", with the monthly or per-period value.
- Enter the tax lines worked out on the total, from your payroll.
- Add a deduction line, "Imputed income offset", for the same amount, so net pay matches the cash you paid.
PayDocs works out federal income tax, Social Security, Medicare and supported state taxes for 2026 pay dates (see what we calculate). PayDocs doesn't value benefits or decide which ones are taxable; it lays out the figures you enter.
Questions
What does imputed income mean on a pay stub?
It is the taxable value of a non-cash benefit, such as life insurance over $50,000. It is added to gross pay so taxes are worked out on it, then taken off again, because the employee didn't receive it as cash.
Is imputed income taxed?
Yes. It is subject to social security and Medicare, and to federal income tax. For group-term life insurance, the employer doesn't have to withhold income tax, but the amount is still taxable on the employee's return through the W-2.
Why is imputed income on my pay stub if I didn't get the money?
Because the IRS counts the benefit as pay. The stub adds its value so the right taxes are taken, then subtracts it, so it doesn't increase the cash you receive.
How is imputed income for life insurance calculated?
Take the cover above $50,000 in thousands, multiply by the IRS Table 2-2 monthly rate for the employee's age, then subtract what the employee paid after tax. At age 45, $150,000 of cover is 100 × $0.15 = $15.00 a month.
Is health insurance for a domestic partner imputed income?
Usually, for federal tax. Publication 15-B's health exclusion covers employees, spouses, dependents and children under 27, and registered domestic partners aren't married for federal tax. The partner's cover is excluded only if they are the employee's tax dependent.
Where does imputed income go on the W-2?
In wages in boxes 1, 3 and 5. Group-term life insurance over $50,000 is also shown in box 12 with code C, and dependent care assistance in box 10.
Sources
- IRS — Publication 15-B (2026), Employer's Tax Guide to Fringe Benefits
- IRS — Publication 15 (2026), (Circular E), Employer's Tax Guide
- IRS — Employment tax recordkeeping
Official sources checked October 8, 2026. This guide explains how pay documents work; it is not tax or legal advice.
