For 2026, the ceilings on how much to put in a Flexible Spending Account are $3,400 for a Healthcare FSA and $7,500 for a Dependent Care FSA if you file jointly ($3,750 if married filing separately). The right election for you sits between the expenses you can predict with confidence and whatever safety net your plan offers for unused funds. Aim low when in doubt: the penalty for under-contributing is paying taxes you would have paid anyway, while the penalty for over-contributing is losing money outright.
2026 Contribution Ceilings
The IRS sets the Healthcare FSA salary reduction limit under Section 125(i) at $3,400 for plan years beginning in 2026, up $100 from 2025.1FSAFEDS. New 2026 Maximum Limit Updates This limit is per employee, not per family. A married couple with two employer plans can shelter up to $6,800 combined.
The Dependent Care FSA limit jumped from $5,000 to $7,500 for joint filers and from $2,500 to $3,750 for married filing separately under Section 129.2Office of the Law Revision Counsel. 26 U.S. Code 129 – Dependent Care Assistance Programs Unlike the Healthcare FSA, this one is a household ceiling. If both spouses have access to a Dependent Care FSA at work, the combined total still cannot exceed $7,500.3FSAFEDS. Dependent Care FSA
Your employer can set lower caps than the IRS allows. A company might limit Healthcare FSA elections to $2,000 even though the federal ceiling is $3,400. Check the summary plan description for the number that actually applies to you.
What Each Dollar Is Worth in Tax Savings
FSA contributions escape federal income tax, the 6.2% Social Security tax, and the 1.45% Medicare tax. Most states also exempt them from state income tax. That stacking is what makes the math worth the forfeiture risk.
A worker in the 22% federal bracket who contributes the full $3,400 to a Healthcare FSA saves roughly $748 in federal income tax alone. Adding in Social Security and Medicare pushes the total federal savings to about $1,008. Every $100 in the account effectively costs about $70. Someone in the 32% bracket saves more per dollar.
A joint-filing household contributing the full $7,500 to a Dependent Care FSA in the 22% bracket saves roughly $2,224 in combined federal taxes. Whether that beats the Child and Dependent Care Tax Credit depends on your income and how many children you have. More on that below.
Building Your Healthcare FSA Number
Start with the past 12 months. Pull explanation of benefits statements, pharmacy receipts, and card statements. Add up copays for primary care and specialist visits, prescriptions, dental work, and vision costs. That is your baseline.
Then add what you can see coming. A planned surgery. Orthodontia. New glasses. Physical therapy for a chronic issue. If your dentist has already told you a crown is coming in the spring, that is $800 to $1,500 you can predict with confidence. Weight your number toward known costs, not speculative ones.
What Counts
The list of eligible expenses is broader than most people expect:
- Dental care: cleanings, fillings, crowns, orthodontia, dentures
- Vision care: exams, prescription glasses, contacts, lens solution
- Over-the-counter medications: pain relievers, allergy medicine, cold remedies, with no prescription needed since the CARES Act expanded eligibility4FSAFEDS. FAQs – Are Over-the-Counter Menstrual Care Products Eligible
- Menstrual care products: pads, tampons, cups, liners
- Medical travel: mileage to appointments at 20.5 cents per mile for 20265Internal Revenue Service. 2026 Standard Mileage Rates
What Doesn’t
Several things feel medical but are excluded, and including them in your estimate is one of the fastest ways to over-fund the account:
- Cosmetic procedures like teeth whitening, elective cosmetic surgery, hair removal
- Insurance premiums of any kind, including Medicare
- General wellness spending: gym memberships, weight loss programs for general fitness, supplements without a diagnosis
If a specific procedure is on your list and you are not sure whether it qualifies, IRS Publication 502 lists eligible medical and dental expenses in detail.
Your Full Healthcare FSA Balance Is Available on Day One
This is the single most underused feature of a Healthcare FSA, and it should shape your election. Under the uniform coverage rule, your entire annual election is available for reimbursement on the first day of the plan year, even though payroll deductions happen gradually.6Internal Revenue Service. Notice 2013-71 – Modification of Use-or-Lose Rule for Health FSAs Elect $3,400, need $2,500 of dental work in January, and you can submit the claim right away. You get reimbursed in full after one or two paychecks have hit.
That means front-loaded medical needs argue for a slightly higher election than pure risk analysis would suggest. If you know surgery or orthodontia is coming in the first quarter, funding for it through the FSA gives you what amounts to an interest-free advance from the plan.
Building Your Dependent Care FSA Number
The Dependent Care FSA reimburses expenses that let you and your spouse work or actively look for work. For most families that means daycare, preschool, before- and after-school care for children under 13, and summer day camps. Overnight camps do not qualify.7Internal Revenue Service. Publication 503 (2025), Child and Dependent Care Expenses Adult dependents who cannot care for themselves also qualify if they live with you at least eight hours a day.
With the new $7,500 ceiling, most families using year-round childcare will hit the maximum easily. Annual center-based infant care runs anywhere from about $7,000 to over $28,000 depending on where you live. If you only need care for part of the year, size your election to those specific months rather than defaulting to the maximum.
Two funding rules make the Dependent Care FSA less forgiving than the Healthcare version. First, funds are only available as they are deducted from your paycheck, so a January care bill cannot be reimbursed in full until enough payroll deductions accumulate. Plan cash flow accordingly. Second, some caregivers are ineligible: you cannot reimburse payments to your child under age 19, your spouse, anyone you claim as a dependent, or the parent of your qualifying child under 13.7Internal Revenue Service. Publication 503 (2025), Child and Dependent Care Expenses A grandparent, aunt, or adult sibling who is not your dependent can qualify, and any provider must give you a Taxpayer Identification Number.
How It Interacts With the Child Care Tax Credit
You cannot use the Dependent Care FSA and the Child and Dependent Care Tax Credit on the same dollars. You can use both on different dollars if your total care costs exceed the FSA limit.8FSAFEDS. Are Dependent Care Expenses Paid With a DCFSA Tax Deductible
The credit lets you claim up to $3,000 in expenses for one qualifying dependent or $6,000 for two or more, and those dollar limits are reduced by whatever you excluded through the FSA.8FSAFEDS. Are Dependent Care Expenses Paid With a DCFSA Tax Deductible Contribute $7,500 to a Dependent Care FSA with two children and you have already blown past the $6,000 credit ceiling, leaving nothing for the credit. For moderate-income households, the FSA’s payroll tax savings usually win. Higher earners should run both numbers because the credit percentage phases down with income, which tends to make the FSA even more attractive at the top brackets. You will report Dependent Care FSA benefits on Form 2441; the amount also shows in Box 10 of your W-2.9Internal Revenue Service. Form 2441 – Child and Dependent Care Expenses
What Happens to Money You Don’t Spend
The default is unforgiving. Any balance left in your FSA at the end of the plan year is forfeited to the employer. This use-it-or-lose-it rule is the reason your estimate should lean conservative rather than optimistic.
Your employer may offer one of two safety valves, but never both at once:
- Carryover: up to $680 in unused Healthcare FSA funds can roll into the next plan year. Anything above $680 is still lost.10FSAFEDS. What Is the Use or Lose Rule
- Grace period: an extra two and a half months after the plan year ends to incur new expenses against the old balance. For a calendar-year plan, that pushes the deadline to March 15.11Internal Revenue Service. Notice 2005-42 – Modification of Use-or-Lose Rule
A grace period protects a bigger balance because there is no dollar cap on what you can spend during those extra months. A carryover has a hard ceiling but preserves funds for a full additional year. Some employers offer neither, in which case every dollar must be spent by year-end. Read your plan’s summary description before you decide how aggressively to fund the account, because these two features change the risk calculation substantially.
Risks That Should Pull Your Number Down
Your FSA election is locked once enrollment closes. You can only change it mid-year after a qualifying life event: marriage, divorce, death of a spouse, birth or adoption of a child, a change in employment status for you or a spouse or dependent, a dependent aging in or out of eligibility, or a change of residence that affects your plan options.12Internal Revenue Service. 26 CFR Part 1 TD 8878 – Tax Treatment of Cafeteria Plans You will typically have 30 to 60 days to notify benefits and submit documentation, and the change must be consistent with the event. Having a baby justifies increasing a Healthcare FSA or starting a Dependent Care FSA. It doesn’t justify an unrelated cut to your dental estimate.
Job separation is the other planning risk, and it works differently for each account type. Your Healthcare FSA terminates on your last day. You can submit claims for expenses incurred before that date, but nothing after.13U.S. Office of Personnel Management. FSA Account and Retirement FAQ The uniform coverage rule works in your favor here: if you spent your full election by March and left in April, you keep those reimbursements even though your payroll contributions never caught up. If you have contributed all year and spent little, you lose the balance.
Dependent Care FSA money is more forgiving after separation. Your remaining balance can keep reimbursing eligible care expenses until the money runs out or the calendar year ends, whichever comes first.13U.S. Office of Personnel Management. FSA Account and Retirement FAQ That asymmetry means you can fund a Dependent Care FSA a little more aggressively early in the year if a job change is possible.
Put the pieces together and a workable rule emerges. Baseline your Healthcare FSA on last year’s spending, add known expenses you can document, then adjust: up a bit if your plan has a grace period or carryover, or if you have front-loaded medical needs; down a bit if your plan has neither cushion or your job feels uncertain. Size your Dependent Care FSA to actual care months rather than the ceiling, and check the credit math if your household earns enough that either option is close. Then leave a small margin on the low side. The tax savings you miss by under-contributing by a few hundred dollars are small. The dollars you lose to forfeiture are gone entirely.