FMLA leave is unpaid by law, so the leave itself is not taxed. The tax questions come up only when money actually reaches you during that time, and whether FMLA is taxed depends entirely on where the money comes from: substituted paid time off, a state paid leave program, disability insurance, or donated leave from coworkers. Each source follows its own rule.
Why Pure FMLA Leave Isn’t Taxed
The federal statute guarantees eligible employees up to 12 workweeks of job-protected leave per year for qualifying reasons, and it specifically allows that leave to be unpaid.1Office of the Law Revision Counsel. 29 USC 2612 – Leave Requirement No wages, no income to report, no withholding. The law protects your position and benefits while you’re away; it doesn’t replace your paycheck. So if you take FMLA leave and receive nothing during it, there’s nothing to put on your return.
Most people don’t take twelve weeks with zero income, though. That’s where the tax questions start.
Paid Time Off You Use During FMLA
Federal regulations let you or your employer substitute accrued vacation, sick leave, or other paid time off so it runs concurrently with your FMLA leave.2eCFR. 29 CFR 825.207 – Substitution of Paid Leave You get a paycheck, and your FMLA protection continues. Your employer can even require you to use accrued leave before shifting to unpaid status.
Those payments are taxed exactly like your normal wages. Your employer withholds federal income tax based on your W-4, plus 6.2% for Social Security and 1.45% for Medicare.3Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates State income tax applies where it normally would. There is no FMLA exemption. If it’s on your paycheck, it’s taxable.
State Paid Family and Medical Leave Benefits
Thirteen states and the District of Columbia run mandatory paid family and medical leave programs funded through payroll contributions. The IRS treats family leave and medical leave benefits differently, and the medical side splits again based on who paid the premiums.
Family Leave Payments
Money you receive from a state program while caring for a new child or a seriously ill family member is included in your federal gross income. It isn’t treated as wages for employment tax purposes, so the state doesn’t withhold Social Security or Medicare. The state issues a Form 1099 if payments reach $600 or more in a year.4Internal Revenue Service. Revenue Ruling 2025-4
Medical Leave Payments
Medical leave benefits are taxed based on who funded the premiums. The share tied to your own payroll contributions is excluded from federal gross income, under the same rule that covers accident and health insurance you pay for yourself. The share tied to your employer’s contributions is included in your gross income.4Internal Revenue Service. Revenue Ruling 2025-4 Many state programs draw most of their funding from employee payroll deductions, so a meaningful portion of medical leave benefits can end up tax-free.
Your Own PFML Payroll Contributions
The amount your employer withholds from your paycheck for a state PFML program is treated as a state tax for federal purposes. It’s still part of your W-2 wages, but you may be able to deduct it if you itemize, subject to the SALT cap.4Internal Revenue Service. Revenue Ruling 2025-4 Employer contributions are not included in your gross income.5Internal Revenue Service. General Instructions for Forms W-2 and W-3
State income tax treatment of these benefits varies. Some states exempt their own PFML payments from state income tax and some don’t, so check your state’s rules rather than assuming they mirror federal treatment.
Disability Insurance Payments
Short-term or long-term disability insurance often fills the income gap during a medical leave. Whether the payments are taxable turns on a single question: who paid the premiums, and with what kind of dollars?
If your employer paid the premiums, or if you paid them with pre-tax dollars through a benefits plan, the disability payments are fully taxable as income. If you paid the premiums entirely with after-tax dollars, the benefits are tax-free.6Internal Revenue Service. Revenue Ruling 2004-55
The gap matters. An employee receiving $4,000 a month in disability benefits might take home the full amount or lose a quarter or more to taxes based only on how the premiums were structured. If your employer offers a choice at open enrollment between pre-tax and after-tax premium payments, the answer to that question shapes what you actually receive if you ever need the coverage.
Donated Leave from Coworkers
Some employers run leave-sharing banks where coworkers can donate unused paid time off to a colleague facing a medical emergency. If you receive donated leave during FMLA, the payments count as your gross income and are treated as wages for all tax purposes, including federal income tax, Social Security, and Medicare withholding.7Internal Revenue Service. Notice 2006-59 – Leave-Sharing Plans
The coworker who donates the leave doesn’t report it as income and can’t take a charitable deduction for it.8Internal Revenue Service. Leave Sharing Plans Frequently Asked Questions The tax falls entirely on the person who actually gets paid.
Health Premiums While You’re Off the Payroll
Your employer must maintain your group health coverage during FMLA leave on the same terms as if you were still working.9eCFR. 29 CFR 825.209 – Maintenance of Employee Benefits Your employer keeps paying its share. Your share is the complication.
When you’re working, your premium usually comes out of your paycheck pre-tax through a cafeteria plan. Once paychecks stop, that automatic deduction stops.10eCFR. 26 CFR 1.125-3 – Effect of the Family and Medical Leave Act on Cafeteria Plans You generally have three options during unpaid leave:
- Pre-pay expected premiums before leave starts, keeping the pre-tax advantage.
- Pay as you go during leave, usually with after-tax personal funds, which raises the effective cost.
- Catch up after you return, with your employer deducting the missed amounts from future paychecks and preserving the pre-tax benefit.
Catch-up is the most common approach. Paying out of pocket during leave with after-tax dollars loses the tax savings on those payments, which can add up over several weeks.
Retirement Plan Treatment
Unpaid FMLA leave cannot count as a break in service for vesting or eligibility in your employer’s retirement plan. If your 401(k) requires you to be employed on a certain date to get credit for a year of service, you’re treated as employed on that date even during unpaid leave.11U.S. Department of Labor. Family and Medical Leave Act Advisor – Equivalent Position and Benefits
Your employer isn’t required to count unpaid leave as credited service for benefit accrual, though.11U.S. Department of Labor. Family and Medical Leave Act Advisor – Equivalent Position and Benefits No employer match goes in during unpaid leave because there are no wages to match, and you can’t make employee contributions without a paycheck. If you’re substituting paid time off, those wages count normally and contributions continue as they usually would.