The Paid Family and Medical Leave Credit (Section 45S)

How it works

Section 45S turns a paid family and medical leave policy into a federal tax credit, not just a deductible expense. It is part of the general business credit under Section 38, worth 12.5 to 25 percent of what an eligible employer pays a qualifying employee out on leave, capped at 12 weeks a year per employee. A dollar of credit comes off tax owed directly; a dollar of deduction only saves the marginal rate.

Congress created this credit in 2017 with a built-in expiration, and the One Big Beautiful Bill Act struck that expiration, effective for tax years beginning after December 31, 2025. The credit itself is now permanent, and it is part of the broader law I cover in my guide to the 2025 reconciliation law. A credit that once needed watching every filing season is now simply permanent.

The rate scales with how much of normal wages the leave replaces, from 12.5 percent at a 50 percent replacement rate up to 25 percent at full pay. Below 50 percent there is no credit at all: that floor sits inside the eligibility test itself, so paying 49 percent of wages earns nothing rather than a smaller amount.

There are two ways to earn it now. The original wage method pays leave, then claims the percentage of those wages. A newer premium method, available for tax years beginning after December 31, 2025, instead runs on the premiums for a qualifying leave insurance policy, at a rate fixed by the policy's own terms whether or not anyone actually takes leave that year, a predictable credit rather than a contingent one.

Either way, Section 280C(a) claws part of it back: the wage or premium deduction drops dollar for dollar by the credit determined for the year, whether or not the full credit is usable that same year.

What this is worth in Florida

Florida runs no state paid family or medical leave program, and Florida law bars a political subdivision from requiring an employment benefit that state or federal law does not already require, with paid time off specifically named among the benefits that rule reaches. That statute writes its own definitions around minimum-wage concepts, so the shield is narrower at the margin than it first reads, and I would not call it unconditional. For an employer with any minimum-wage staff, though, a city or county ordinance is not realistically going to change the answer.

That matters because in a state running its own paid-leave fund, an employer's credit computes only against what it pays on top of the state benefit, and a thin top-up alone can earn nothing if it does not itself clear the 50 percent floor. None of that applies here: every dollar a Florida employer pays under its own policy can generate credit, with no state benefit underneath it.

Florida law also authorizes a specific premium-method vehicle: a licensed insurer may sell paid family leave insurance meeting minimum coverage standards Florida sets by statute, neither paid nor required by the state, exactly what the premium method is built for. One caution: its required coverage does not match this credit's purposes perfectly, so a policy built to the state minimum will likely mix in some leave this credit does not count.

Who this applies to

Any employer with W-2 employees can be eligible, regardless of entity type. What actually filters who benefits is the wage definition this credit borrows, and three tests deciding which employees count.

• The wage definition excludes some employers entirely, regardless of policy quality. Wages here follow the federal unemployment tax definition, not plain W-2 wages, and a Section 501(c)(3) organization's employees are excluded from that definition entirely, so it has no wage base to run the credit on, however generous its policy is. A tax-exempt organization outside Section 501(c)(3), a trade association, for example, is unaffected. The same definition excludes a sole proprietor's spouse or under-21 child, so leave paid to them earns nothing.
• A qualifying employee has to clear three tests, for tax years beginning after December 31, 2025: at least a year of employment, or six months at the employer's election; customarily working at least 20 hours a week; and prior-year compensation at or below 60 percent of a highly compensated employee threshold the tax code indexes annually. For a 2026 credit year, that ceiling is $96,000 of 2025 compensation.
• Hours worked sort employees into three groups: 30 or more hours a week, the usual full-time line, means the full minimum leave; 20 to 29 hours is still a qualifying employee owed a proportional share; under 20 hours a week falls outside the credit entirely, so a policy need not cover them.
• Common ownership can turn separate businesses into one employer, under the tax code's controlled-group rules, and that takes two things at once: at least 80 percent controlling interest in each business, and more than 50 percent identical ownership across them. An individual who owns all of two S corporations is one employer under this test; owning all of one and 60 percent of another is not aggregated at all.

This tends to fit a stable, moderately paid workforce of roughly ten to sixty people, where a few births or family medical situations are simply a normal part of the year. A one-person S corporation, or a two-or-three-person shop, usually gets nothing material from it, since the credit runs on non-owner employees actually taking leave. It is a subsidy on a leave benefit worth offering for its own reasons, not a reason to create one. None of it reaches a business with no employees yet; that question belongs in my guide to payroll taxes for a first employee, not here.

What it requires

Everything runs through one written policy, and the sequence matters as much as the content.

• The policy has to exist in writing before the leave it covers is taken, in place on whichever is later: its adoption date or its effective date. Leave taken earlier earns nothing, and there is no rule allowing retroactive adoption.
• The policy has to provide a minimum amount of leave. At least two weeks of annual paid leave for every full-time qualifying employee, and a proportional amount for a part-time qualifying employee based on expected hours against a comparable full-timer's.
• The rate of payment has to be at least 50 percent of normal wages, the number that also sets the credit percentage above, worth choosing deliberately rather than defaulting to the floor.
• The leave has to be designated for specific reasons, and unavailable for anything else: a new child by birth, adoption, or foster placement; a family member's serious health condition, or the employee's own; a covered military exigency; or caring for a covered servicemember. A general paid time off bank an employee happens to use for a new baby does not qualify, even where the reason would otherwise fit, because it was never set aside for these purposes.
• An employer with any employee the FMLA does not cover has to add a specific promise: that it will not interfere with the right to take the leave, and will not retaliate against anyone who exercises or defends it. The trigger is not a headcount. Section 45S(c)(2)(B) turns on whether the policy reaches an employee not covered by title I of the Family and Medical Leave Act, so a 200-person business with a single part-year employee who works under 1,250 hours needs the clause just as a five-person business does. Leave the clause out and the credit is zero regardless of everything else.
• The policy cannot exclude an otherwise-qualifying group of employees. Carving out one classification, collectively bargained staff, for example, costs the credit on the non-conforming portion of the policy, and costs it on every employee if the excluded group does not still get the minimum leave and rate somewhere in the same document.
• A wage dollar can support only one wage-based credit. Wages already counted toward a different wage-based credit cannot also be counted here. Like every general business credit, this one is capped by the employer's tax liability for the year, and whatever cannot be used currently carries back one year and forward twenty.
• A blended insurance premium has to be allocated between what counts and what does not, using objective criteria applied consistently for the taxable year and across every business treated as a single employer under the aggregation rule.

What you need to document

Almost everything here has to exist as the year happens; reconstructing it at filing time is the surest way to lose the credit if it is ever questioned.

The written policy itself

Dated and in force before any leave it covers, stating the minimum leave amount, the chosen rate, the qualifying purposes, the non-interference promise if the business has fewer than 50 employees, and no excluded classification of employees.

A per-employee eligibility file

Tenure, customary weekly hours, and prior-year compensation for every employee, checked against the three qualifying-employee tests each year rather than assumed to carry over.

Leave records tied to the policy's own purposes

Which recognized purpose each leave period was taken for, the wages paid during it, and confirmation it came from the dedicated leave category rather than general paid time off.

The substantiation the credit's own form asks for

Each qualifying employee's name and Social Security number, the wages taken into account, the employer's name and EIN, and the applicable percentage computed for the year.

A contemporaneous premium allocation, if using the premium method

The insurance policy itself, the premium invoices, and a written, objective allocation method built when the policy is purchased, not reconstructed after the fact.

Where it goes wrong

This is a mainstream statutory credit. I have found no case law on it, and it is named on neither of the two IRS lists I checked, listed transactions and transactions of interest. What actually costs a business this credit is almost always documentation or timing, not legitimacy.

The recurring mistakes

• No written policy, or one adopted after leave already started. There is no fix that reaches back to cover leave taken before the policy was in place.
• Leaving out the non-interference promise for a business under 50 employees. The assumption that an uncovered staff means the clause does not matter runs backward; it is precisely because they are uncovered elsewhere that this credit makes the promise mandatory.
• Treating 49 percent as close enough to the 50 percent floor. It is not a smaller credit at that rate. It is none at all.
• Paying leave from an undesignated paid time off bank instead of a category earmarked for the recognized purposes.
• Excluding a classification of otherwise-qualifying employees, which costs the credit on that portion of the policy, or on every employee if the excluded group gets no conforming minimum anywhere in the document.
• Screening slips: crediting someone over the compensation ceiling, under the hours floor, or short of tenure for that year.
• Forgetting the mandatory deduction reduction in the credit year, even when the credit itself is limited and carried to a different year.

Stale guidance is a live trap on this one

There is no Treasury regulation under this section; everything below the statute is a notice, form instructions, or an FAQ page, and two statements in the main 2018 guidance document are now wrong. Its background discussion says state-mandated or state-paid leave is disregarded for any purpose, accurate then but not now: such leave now counts toward a policy's minimum-leave requirement, though it still produces no credit dollars. That the same amendment also reaches the 50 percent minimum-rate test is the IRS's construction of the amended text rather than anything the statute itself says about rates, and I treat it as a construction rather than as settled. The same document also says this credit has no minimum-hours requirement at all, true in 2018 and squarely contradicted by the 20-hour weekly test in current law. Reading either point off the old guidance without checking it against the statute gives the wrong answer both ways.

Owner leave is a gap in the statute, not an opportunity

Nothing in this section disqualifies a business owner from being a qualifying employee, unlike a comparable hiring credit that rules out relatives of the employer outright. That silence is not an invitation. The leave still has to be real, taken for a recognized reason, paid under a policy that covers every qualifying employee alike, and documented the same way as anyone else's. Relabeling an owner's continuing paycheck during weeks away as leave, after the fact, has no guidance behind it and nothing but the facts to defend it.

A situation where this comes up

The version I see most often is an owner-managed business, somewhere in the ten-to-sixty-employee range, that already treats people decently around a birth or a family medical situation but has never put a compliant policy in writing or claimed anything for it. Nothing about how the business operates has to change. The leave is already happening.

What usually has to change is the paperwork, and its timing: a written policy dated before this year's leave begins, a leave category kept separate from ordinary paid time off, the non-interference language if the business has fewer than 50 employees, and a current eligibility check on each employee. None of that changes how the business treats someone going through a family medical event. It just writes down what is already happening.

The version that concerns me is built to capture a rule change rather than run a real policy: a business that assumes state-mandated leave now counting toward the minimums also means a bigger credit on its own dollars, when no guidance has addressed that question, or one that adopts exactly a 50 percent rate with no real intention of administering it. What changed after 2025 is real and worth checking against any older policy, which differs from treating an open question as though it were already settled.