2026 FSA tax savings from your real bracket, FICA and state rate, plus how much to elect, your forfeit risk, and dependent-care FSA vs the tax credit.
What you realistically expect to spend on eligible costs this year.
Leave blank and we will recommend an election from your expected expenses.
Your salary before deductions — we subtract the standard deduction to find your bracket.
Source: IRS Rev. Proc. 2025-32 and 26 U.S.C. Section 129(a)(2).
| Account | Annual limit | Carryover |
|---|---|---|
| Healthcare | $3,400 | Up to $680 |
| Limited-Purpose | $3,400 | Up to $680 |
| Dependent-Care (most filers) | $7,500 | None |
| Dependent-Care (married filing separately) | $3,750 | None |
Estimates only, using 2026 federal figures and state rates as of 2026-08-06. Your employer's plan rules, a grace period, and state and local taxes can all change the result. Confirm with your benefits administrator or a tax professional before electing.
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A Flexible Spending Account lets you pay eligible healthcare or dependent-care costs with pre-tax salary, so every dollar you elect skips federal income tax, FICA, and usually state income tax. The saving is your election multiplied by your combined marginal rate — but only if you get all three rates right. This calculator subtracts the standard deduction before reading your federal bracket, applies the real marginal FICA rate rather than a flat 7.65%, and uses your state's actual treatment. It then answers the question people are really asking at open enrolment: how much should I elect, and what happens if I overshoot?
An FSA is an employer-sponsored account funded by pre-tax salary reduction under Section 125. There are three kinds: a healthcare FSA for medical, dental and vision costs; a dependent-care FSA for daycare, preschool and elder care; and a limited-purpose FSA for dental and vision only, which is the version you can hold alongside an HSA. For 2026 the healthcare and limited-purpose limit is $3,400 with up to $680 of carryover (IRS Rev. Proc. 2025-32), and the dependent-care limit is $7,500 per household — $3,750 if married filing separately — after the One Big Beautiful Bill Act raised it from $5,000. FSAs are use-it-or-lose-it beyond any carryover, so the election is a genuine forecast.
FSA Tax Savings Formula
Turn an expected-expenses estimate into an election you can type into your benefits portal, with the per-paycheck deduction shown.
See whether electing the full $3,400 still pays off given what you actually expect to spend.
Compare the exclusion against the Section 21 credit at your income and number of qualifying individuals.
Model dental and vision through the limited-purpose FSA while your HSA keeps its triple tax advantage.
Check whether crossing the Social Security wage base has changed what your election is worth.
Enter a conservative spend and see how much of an existing election is genuinely at risk.
Tax brackets apply to taxable income, so we subtract the 2026 standard deduction first. A $60,000 single filer sits in the 12% band, not the 22% band their salary suggests — a difference that nearly halves the federal saving.
FICA is 7.65% only below the $184,500 Social Security wage base. Above it you save 1.45%, and above $200,000 you save 2.35% including the Additional Medicare surtax. A flat 7.65% overstates a high earner's saving by hundreds of dollars.
Leave the election blank and the calculator recommends one from your expected expenses, capped at the IRS limit — the single most-asked question at open enrolment.
An election only loses money if you spend less than its after-tax cost. We show that threshold explicitly, so you can see how much slack you actually have.
Side by side, with the Section 21 applicable percentage at your income and the Section 21(c) reduction applied. For many lower-income families the credit wins; for higher earners the FSA's FICA relief wins.
Including the dependent-care increase to $7,500, which many calculators still show as $5,000.
Elect what you confidently expect to spend on eligible costs. Because the money is pre-tax, an election only costs you money if you spend less than its after-tax value — roughly 70 cents on the dollar at a 30% combined rate. On a $3,400 election you would need to spend under about $2,380 before you were worse off, and a $680 carryover lowers that further.
$3,400 for a healthcare or limited-purpose FSA, with up to $680 of carryover if your plan allows it (IRS Rev. Proc. 2025-32). The dependent-care FSA limit is $7,500, or $3,750 if married filing separately.
Yes. The One Big Beautiful Bill Act (P.L. 119-21, Section 70404) amended 26 U.S.C. Section 129(a)(2), raising the exclusion from $5,000 to $7,500 for tax years beginning after 31 December 2025. Many calculators and benefits pages still show $5,000.
Your election times your combined marginal rate. For a $60,000 single filer in a 5% state that is roughly 12% federal + 7.65% FICA + 5% state, so about 24.65 cents per dollar — around $370 on a $1,500 election. Higher earners save more federally but less on FICA once they pass the $184,500 Social Security wage base.
Yes — Section 125 salary reductions are excluded from FICA wages, which is the main reason an FSA usually beats the dependent-care tax credit for higher earners. But the Social Security portion only helps below the wage base, so above $184,500 the FICA saving drops to the 1.45% Medicare rate.
It depends on your income, your state, and how many children you have — and the 2026 answer is not the one most guidance gives. The Section 21 credit is 50% at low income, holds at a 35% floor, and only begins phasing toward 20% above $75,000 of AGI ($150,000 on a joint return) after the One Big Beautiful Bill Act raised those thresholds. It applies to at most $3,000 of expenses for one qualifying individual or $6,000 for two or more. The FSA excludes up to $7,500 and also avoids FICA. With ONE child the FSA almost always wins, because the credit is capped at $3,000 of expenses. With TWO or more it is a real contest, and what decides it is mostly the jump from the 12% to the 22% federal bracket plus your state rate: with no state income tax the FSA overtakes the credit at roughly $140,000 of joint wages, while at California's 9.3% it overtakes at roughly $61,000. You cannot use both on the same dollars — Section 21(c) reduces the creditable cap by whatever you exclude — which is why this calculator computes both routes rather than quoting a rule of thumb.
Beyond any carryover it is forfeited to your employer. A healthcare FSA may allow up to $680 to carry into 2027, or a grace period of up to two and a half extra months, but not both — and a dependent-care FSA can never carry over.
Yes for healthcare FSAs: the $3,400 limit is per employee, so a two-earner couple with two employers can elect $6,800 between them. The dependent-care limit is different — $7,500 is per household, not per person.