Do You Have to Pay Taxes on Long-Term Disability Benefits?

Taxes on long-term disability benefits come down to one question: who paid the premiums, and with what kind of dollars? If your employer paid, or you paid through a pre-tax payroll deduction, the monthly benefit is fully taxable as ordinary income. If you paid the premiums yourself with after-tax money, the benefit arrives tax-free. When both sources funded the policy, you split the benefit in the same ratio as the premiums.¹ Everything else about reporting, withholding, and offsets flows from that rule.

Who Paid the Premiums, and How

The IRS treats disability benefits as a mirror image of the premium payments. Dollars that were never taxed on the way in get taxed on the way out; dollars that were already taxed come back untaxed. That symmetry is the whole framework.

Employer-Paid or Pre-Tax Premiums: Fully Taxable

When your employer pays the LTD premium, the premium isn’t part of your gross income, so the benefits are fully taxable when you collect them.² The statute puts it directly: amounts received under an employer-funded accident or health plan are included in gross income to the extent they come from employer contributions that weren’t taxed.³

The same result applies if you technically pay the premiums yourself but do so through a Section 125 cafeteria plan using pre-tax payroll deductions. Because those dollars leave your paycheck before income tax is calculated, the IRS treats them as employer-paid. Benefits are fully taxable.¹ This catches people off guard because the payroll deduction feels like their own money.

After-Tax Premiums: Tax-Free Benefits

If you paid the full premium with after-tax dollars, none of the benefit is included in your income.¹ You already paid income tax on the money that bought the coverage, so the benefit isn’t taxed again.⁴ The same result applies to any individual policy you bought on your own outside of work, since those premiums came from personal after-tax funds.

If your employer gives you a choice of paying premiums pre-tax or after-tax, this is the choice that matters. After-tax means a slightly larger deduction from each paycheck now. It also means that if you ever need the coverage, every dollar of the monthly benefit is yours to keep.

Split-Funded Policies

When both you and your employer contributed, or when the payment method changed during the life of the policy, only the part of the benefit tied to employer-paid or pre-tax premiums is taxable. The calculation is proportional.¹

Take a simple example. Total premiums paid over the life of the policy come to $10,000. You paid $3,000 of that with after-tax dollars. Your after-tax share is 30%. If you receive $40,000 in disability benefits this year, $12,000 is tax-free and $28,000 is taxable.

The insurance carrier should track this split and report the correct taxable amount, but verify the math against your own records. If the premium structure changed midway, ask your HR department or the carrier for a payment history broken out by pre-tax and after-tax source. Fix a mismatch before you file, not after a notice arrives.

Where Taxable Benefits Go on Your Tax Return

Where the income lands on Form 1040 depends on the tax form you receive and your age.

If You Get a W-2

Some employers are self-insured and pay disability benefits directly instead of through a carrier. In that case, the payments show up on Form W-2, and you report them on the wages line of Form 1040 like any other wages.¹

If You Get a 1099-R

Most people whose benefits come from an insurance carrier receive Form 1099-R. Three boxes matter:

Box 1 shows the gross amount paid during the year.
Box 2a shows the taxable portion. For a split-funded policy, this should already reflect your after-tax share; check it against your records.
Box 7 shows the distribution code. Code 3 means the payment is a disability payment.⁵

If Box 2a looks wrong, ask the carrier for a corrected 1099-R before filing.

Before and After Minimum Retirement Age

If you retired on disability and the employer or its insurer funded the plan, the taxable benefit is reported as wages on line 1h of Form 1040 until you reach minimum retirement age, even if a 1099-R with code 3 is what came in the mail.⁶ Minimum retirement age is the earliest age at which you could have started a pension or annuity if you had not become disabled.

Starting the day after you reach that age, the same payments are treated as pension or annuity income and move to lines 5a and 5b.⁶ The check doesn’t change; the reporting does. If you cross that birthday during the year, you split the year’s benefits between the two lines.

Withholding and Estimated Taxes

Unlike wages, disability benefits from a third-party insurer don’t have federal income tax withheld automatically. If you want withholding, file Form W-4S with the insurance company that pays your benefits and specify a dollar amount to withhold from each payment. The election stays in place until you change or revoke it.⁷

Without withholding, you’re responsible for quarterly estimated tax payments due in April, June, September, and the following January. To avoid an underpayment penalty, you generally need to pay at least 90% of the current year’s tax or 100% of the prior year’s tax (110% if prior-year AGI exceeded $150,000).⁸ If you became disabled during the year and had reasonable cause for underpaying, the IRS may reduce the penalty.

The simpler move is usually to file Form W-4S with the insurer as soon as taxable benefits start. It removes the quarterly bookkeeping and the risk of an April surprise.

The Six-Month FICA Window

Disability benefits are subject to Social Security and Medicare (FICA) taxes, but only for the first six calendar months after the last month you worked for the employer.⁹ After that, benefits are exempt from FICA even if they remain subject to income tax. From your side, the practical effect is that the first several checks are slightly smaller because of FICA withholding, and then those deductions stop.¹⁰

How SSDI and Workers’ Comp Affect the Picture

Most LTD policies require you to apply for Social Security Disability Insurance. Once SSDI is approved, the LTD insurer reduces its payment by the SSDI amount. Your total income stays roughly the same, but you now have two payment streams with different tax rules.

SSDI Taxability

SSDI has its own formula based on “combined income”: adjusted gross income plus tax-exempt interest plus half of your Social Security benefits.¹¹ Below the base amount for your filing status, SSDI is tax-free. Above it, up to 50% of the benefit becomes taxable; above a second threshold, up to 85%. Base amounts are $25,000 for single filers and $32,000 for joint filers, with second-tier amounts of $34,000 and $44,000. If you’re married filing separately and lived with your spouse at any point during the year, the base amount is $0.¹²

Because taxable LTD benefits count toward combined income, they can push more of your SSDI into the taxable range. Worth modeling before filing if you’re near a threshold.

Retroactive SSDI Lump Sums

SSDI claims often take a long time to approve, and the eventual payment is a lump sum covering all the back months. Reporting the whole thing in one year can spike your income and pull more of it into higher brackets.

The lump-sum election method is the alternative. You allocate the back payments to the earlier years they actually cover, refigure each prior year’s taxable Social Security using that year’s income, and include only the difference on the current-year return.¹³ You don’t file amended returns. The worksheets in Publication 915 compare both methods so you can pick whichever produces the lower taxable amount.¹⁴ If the election helps, check the box on Form 1040, line 6c, and report the reduced figure on line 6b. Anyone receiving a retroactive payment covering more than one year should run both calculations.

Workers’ Compensation

Workers’ compensation is excluded from federal gross income entirely.¹⁵ If workers’ comp offsets part of your LTD payment, the offset is tax-free and only the reduced LTD portion is subject to the premium-source rules. If gross LTD is $4,000 a month and workers’ comp covers $1,500, the insurer pays $2,500 in LTD and issues a 1099-R for that net amount; the $1,500 is never taxed.¹⁶

The Credit for the Elderly or the Disabled

If your disability benefits are taxable, Schedule R may offset a small part of the bill. To qualify under age 65, you must have retired on permanent and total disability, receive taxable disability income during the year, and not yet have reached mandatory retirement age as of January 1.¹⁷

The income limits are strict and not indexed for inflation, so the credit primarily reaches low-income filers. Single filers are generally ineligible once AGI reaches $17,500 or nontaxable Social Security and pension income reaches $5,000. For joint filers where one spouse qualifies, the AGI ceiling is $20,000; where both qualify, the limits are $25,000 AGI and $7,500 in nontaxable benefits.¹⁷ If you fall under the thresholds, claim it.

One Thing You Can’t Do: Deduct the Premiums

If you’re paying LTD premiums out of pocket, they don’t qualify as a deductible medical expense on Schedule A. The IRS specifically excludes premiums for policies that pay you for lost earnings from the medical expense definition, since disability insurance replaces income rather than covering medical treatment.¹⁸ The tradeoff is the after-tax rule described above: because those premiums use after-tax dollars, the benefits themselves come to you tax-free, which is almost always the more valuable outcome.

1
Internal Revenue Service. Life Insurance and Disability Insurance Proceeds
2
Internal Revenue Service. Publication 525 (2025), Taxable and Nontaxable Income
3
GovInfo. 26 USC 105 – Amounts Received Under Accident and Health Plans
4
Office of the Law Revision Counsel. 26 USC 106 – Contributions by Employer to Accident and Health Plans
5
Internal Revenue Service. 2025 Instructions for Forms 1099-R and 5498
6
Internal Revenue Service. Publication 907 (2025), Tax Highlights for Persons With Disabilities
7
Internal Revenue Service. 2026 Form W-4S
8
Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
9
Office of the Law Revision Counsel. 26 USC 3121 – Definitions
10
Internal Revenue Service. Publication 15-A (2026) Employers Supplemental Tax Guide
11
Internal Revenue Service. Social Security Income
12
Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits
13
Internal Revenue Service. Back Payments
14
Internal Revenue Service. Social Security and Equivalent Railroad Retirement Benefits
15
Office of the Law Revision Counsel. 26 USC 104 – Compensation for Injuries or Sickness
16
U.S. Department of Labor. Claimant Tax Information
17
Internal Revenue Service. Instructions for Schedule R (Form 1040) (2025)
18
Internal Revenue Service. Publication 502, Medical and Dental Expenses