What Is LTD Imputed Income on Your Paycheck?

The LTD imputed income line on your paycheck is the dollar value of the long-term disability premium your employer pays on your behalf, added to your taxable wages even though you never see it as cash. Your employer does this on purpose. By having you pay a little income tax on the premium now, they make sure that if you ever go out on disability, the monthly benefit check arrives completely tax-free.

For a worker earning around $60,000, the added amount is usually somewhere between $30 and $80 a month. The actual hit to your take-home pay is only the tax on that amount, which is a few dollars a week.

Why Your Employer Adds the Premium to Your Wages

The tax code gives employers a choice, and the choice has consequences on the back end.

Under IRC Section 106, an employer can pay for your accident and health coverage, including LTD, without that payment counting as income to you.¹ That sounds like a straight win. It isn’t.

IRC Section 105(a) says disability benefits are taxable as ordinary income to the extent they come from employer contributions that were not included in your gross income.² Translation: if the premiums were never taxed going in, the benefits get taxed coming out.

Imputation flips that. Once the premium is added to your W-2 wages, it has been included in your income. The premium dollars are now after-tax dollars, and after-tax premiums produce tax-free benefits. You take a small tax bill now to avoid a large one at the worst possible time.

How the Amount on Your Paycheck Is Figured

The imputed figure is not a formula or a government table. It is the real premium your employer pays the insurance carrier for your specific coverage under the group policy.

Group LTD premiums typically run between 1% and 3% of salary for a plan that replaces 50% to 60% of pay. Someone earning $75,000 might see an employer premium of $750 to $2,250 a year, which works out to roughly $62 to $188 a month showing up as imputed income.

Several things move that number:

Your salary, because the benefit scales with pay.
Your age band, since many group policies charge more as you get older.
Your occupation class, with higher-risk jobs priced higher.
Plan design, including the benefit percentage, elimination period, and benefit duration.

If your employer pays the entire premium, the whole cost is imputed. If you contribute part of the premium yourself with after-tax dollars, only the employer’s share is imputed; the piece you already paid with taxed money is not taxed again.³

What You Actually Lose Versus What You Gain

The arithmetic is lopsided, and it is lopsided in your favor.

Take an employee earning $80,000 whose plan replaces 60% of salary. The employer pays a $1,500 annual premium and imputes the full amount. In a 22% federal bracket, that costs the employee roughly $330 a year in extra income tax, or about $27 a month in reduced take-home pay.

Now suppose that employee becomes disabled. The LTD benefit is $4,000 a month, or $48,000 a year. Because the premium was imputed, every dollar of that benefit arrives tax-free. If the premium had not been imputed, that same $4,000 would be taxable, costing roughly $880 a month in federal tax alone. The monthly tax saved on the benefit is more than thirty times the monthly cost of imputation.

Some employers let you choose: pay the premium and impute it (tax-free benefits later), or pay the premium without imputing (taxable benefits later). Unless you are certain you will never file a claim, imputation is almost always the better deal, and no one is certain.

The Cafeteria Plan Mistake

One of the easiest ways to accidentally make your future benefits taxable is to pay your share of LTD premiums through a Section 125 cafeteria plan with pre-tax salary reductions. The IRS treats pre-tax payroll contributions as if the employer made them, even though the money came out of your paycheck. The result is the same as if your employer had paid the premium without imputing it: your future disability benefits are fully taxable.³

If your benefits enrollment gives you a choice between pre-tax and post-tax premium payments for LTD, choose post-tax. The small tax savings on a monthly premium are not worth the exposure on a benefit that could run for years.

When You and Your Employer Both Pay

In contributory plans where the employer and employees each pay part of the premium, future benefits are taxable in proportion to who paid what. If the employer paid 70% of the premium and you paid 30% with after-tax dollars, 70% of any benefit you receive is taxable and 30% is tax-free.³

For group policies, the IRS does not use just the current year’s split. Treasury Regulation 1.105-1(d)(2) requires averaging the employer’s and employees’ net contributions over the last three policy years known at the start of the calendar year.⁴ That smooths out year-to-year changes and keeps employers from shifting cost allocations right before a claim.

How It Shows Up on Your Pay Stub and W-2

On your pay stub, the imputed amount usually appears as a separate line added to gross pay, with withholding adjusted upward to match. You do not receive that money. What you feel in your take-home pay is only the extra tax on it. For $100 a month in imputed LTD premium, the actual reduction in take-home might run $22 to $35 depending on your bracket and state.

At year-end, the accumulated imputed amount is rolled into Box 1 of your Form W-2, which is the wages figure you use to calculate federal income tax.¹

Hold on to those W-2s for as long as your LTD policy is in force. If you ever file a disability claim and the tax treatment of your benefits comes into question, your W-2 history is the proof that you already paid tax on the premiums. That connection can matter years after the fact.

What It Means When You Actually File a Claim

The tax treatment of a disability check depends entirely on how the premiums were handled:

If the premiums were imputed, or you paid them with after-tax dollars, the benefit is completely tax-free.³
If your employer paid the premiums without imputing, the benefit is fully taxable as ordinary income.²
If you paid through a pre-tax cafeteria plan, the benefit is fully taxable, because those contributions are treated as employer-paid.
If funding was mixed, the benefit is taxable in proportion to the employer’s share, averaged over three policy years for group plans.

In real dollars, the gap is large. A $5,000 monthly benefit that is fully taxable might come to about $3,700 after federal and state tax. The same $5,000 benefit paid tax-free stays at $5,000. Over a two-year claim, that difference adds up to more than $31,000.

A Note on FICA and Social Security Offsets

Two side issues are worth knowing about, even though they only matter once you are actually on claim.

If your benefits turn out to be taxable, Social Security and Medicare taxes are withheld from the payments during the first six calendar months after you stop working. After that six-month window, FICA no longer applies to the benefit, even if income tax still does.² If your benefits are tax-free because premiums were imputed, FICA does not apply to the payments at all.

Most employer LTD policies also offset your benefit dollar-for-dollar by any Social Security Disability Insurance (SSDI) you receive, and many require you to apply for SSDI as a condition of continued payment. SSDI itself is reported on Form SSA-1099 and is partially or fully taxable depending on your total income.⁵ The offset shrinks the LTD portion, but if your LTD premiums were imputed, the LTD dollars you still receive remain tax-free.

1
Internal Revenue Service. Publication 15-B (2026), Employers Tax Guide to Fringe Benefits
2
Office of the Law Revision Counsel. 26 USC 105 – Amounts Received Under Accident and Health Plans
3
Internal Revenue Service. Life Insurance and Disability Insurance Proceeds 1
4
U.S. Government Publishing Office. 26 CFR 1.105-1 – Amounts Received Under Accident or Health Plans
5
Internal Revenue Service. Regular and Disability Benefits