FIRE with kids: 529 plans and the family math

For a lot of parents, the reason for FIRE has a name and a car seat. They want more time with their kids while the kids still want time with them.

Kids also make FIRE harder: more spending, less sleep, and a long list of things to save for. This guide covers how families think about the trade-offs, how 529 college savings plans work, and a few 2026 tax rules that help.

This is general education, not advice. It doesn't recommend any plan, state or investment. 529 plans, state tax rules and financial aid formulas vary. Read a plan's official documents and talk with a tax professional before choosing.

Kids and the FIRE timeline

Children change three things at once:

• Spending goes up, often a lot in the childcare years.
• Income may change if a parent cuts back hours or stays home. See FIRE on one income.
• Your FIRE number changes, because you'll be supporting more people for at least part of early retirement, including their health insurance.

The good news: many of the biggest costs, like full-time childcare, are temporary. When those years end, the money that was going to daycare can go to savings. Planning for that shift, instead of letting it disappear into everyday spending, is one of the most powerful moves a family can make. See Avoiding lifestyle creep.

Retirement first, or college first?

There's no single right answer, and families land in different places. The common arguments:

For putting retirement first:

• Students can borrow, apply for aid and scholarships, work, or choose a less expensive school. There are no loans for retirement.
• Retirement accounts often come with an employer match.
• A financially independent parent is less likely to need their kids' help later.

For saving for college alongside:

• Time matters for growth. Money saved when kids are small has many years to compound.
• A 529 can have tax benefits, and some states offer a state tax break for contributions (Investor.gov).
• Less borrowing can give your kids more freedom early in their own lives.

Many families do some of both: enough retirement saving to get any match and stay on track, plus a monthly amount into a 529 they can keep up.

How a 529 plan works

A 529 plan (the IRS calls it a qualified tuition program) is set up by a state, or by an eligible educational institution, to help pay for education (IRS Topic 313). There are two main kinds: prepaid tuition plans and education savings plans (Investor.gov). Most people mean the savings kind: you choose investments, and the account rises or falls with them.

The tax treatment

• Contributions aren't deductible on your federal return (IRS Topic 313). Some states give a deduction or credit, often only for their own plan.
• Growth isn't taxed while it stays in the account.
• Withdrawals for qualified education expenses aren't taxable (IRS Topic 313).
• If you take money out for something else, the earnings part is taxable, and generally there's a 10% additional tax on it, with exceptions such as when the beneficiary gets a tax-free scholarship (IRS Pub 970).

What it can pay for

• College and other higher education: tuition, fees, books, supplies and, for students enrolled at least half-time, room and board, within limits (IRS Pub 970).
• K-12: for 2026, up to $20,000 a year per beneficiary for tuition and certain other expenses at elementary or secondary schools, up from $10,000 before 2026 (IRS Topic 313).
• Student loans: up to $10,000 lifetime per individual for principal or interest on the beneficiary's or a sibling's student loans (IRS Topic 313).

State tax rules for these uses don't always match federal rules. Check your state.

If your child doesn't need it all

It's a common worry. There are several options:

• Change the beneficiary to another family member, such as a sibling, cousin or yourself. The IRS says there are no income tax consequences if the new beneficiary is a member of the original beneficiary's family (IRS Pub 970).
• Roll some into a Roth IRA for the beneficiary. The 529 account must have been open for at least 15 years, the money must move directly from the 529 to the Roth IRA (a trustee-to-trustee transfer), and contributions made in the last five years, plus their earnings, can't be rolled over. Yearly rollovers are capped at the Roth IRA contribution limit, and the lifetime maximum is $35,000, among other rules (IRS Topic 313).
• Scholarship withdrawals. If your child earns a tax-free scholarship, withdrawing up to that amount avoids the 10% additional tax, though earnings are still taxable (IRS Pub 970).
• Keep it for graduate school, a later degree, or another family member's education.

Choosing a plan

You can usually use any state's plan, not just your own. Things to compare:

• Fees. Investor.gov's bulletin lists the kinds of fees plans can charge (Investor.gov). Lower costs leave more to grow.
• Investment options, such as age-based portfolios that get more conservative as college nears, or individual funds.
• Your state's tax benefit, if any, and whether it requires the in-state plan.

Gifts from family

Relatives can contribute too. For 2026, the gift tax annual exclusion is $19,000 per recipient (IRS Rev. Proc. 2025-32). Birthday or holiday gifts to a 529 can add up over the years.

Other 2026 tax rules for families

• Child tax credit: up to $2,200 per qualifying child for 2026, with up to $1,700 of it refundable (IRS Rev. Proc. 2025-32). Eligibility rules and income phase-outs apply (IRS).
• Dependent care benefits: if your employer offers a dependent care FSA, the amount you can exclude from income rises to $7,500 for 2026 ($3,750 if married filing separately) (IRS Pub 15-B).
• Trump Accounts: a new kind of account for children. Children born from January 1, 2025, through December 31, 2028, who meet the requirements can receive a one-time $1,000 Treasury contribution, and contributions couldn't start before July 4, 2026 (IRS, IRS Form 4547 instructions). The rules are new, so check IRS.gov for the latest.
• A Roth IRA for a working teen. A child with earned income, from a summer job for example, can contribute to an IRA up to the lesser of their compensation or the annual limit (IRS).

Kids in early retirement

A few things to plan for if you retire while the kids are still at home:

• Health insurance for the whole family. Marketplace premium tax credits depend on household income, and children may qualify for Medicaid or CHIP depending on income and state (HealthCare.gov). See Health insurance before Medicare.
• College financial aid. Aid formulas look at income and some assets. Your retirement-year income and how your savings are held can affect aid. StudentAid.gov explains the FAFSA.
• What you're teaching. Kids notice how you talk about money and work. FIRE can be a chance to show them that time and freedom are worth planning for.

Next step

Kids or not, your FIRE number starts with what your family spends.

Try the FIRE number calculator →

Then make it real for your family: our Dream board helps you picture what your free time is for.