What to do with extra money after paying your bills

The order that makes each dollar count: cover the basics, get your 401(k) match, pay off credit cards, then build an emergency fund, an IRA and more.

Rent and bills are paid, and there’s $400 left this month. Savings, the credit card, your 401(k), or the IRA a coworker keeps mentioning: which comes first?

Family and friends often bring me questions like this. The answer is an order, because a dollar does more in some places. Carry $4,000 on a card at 22%, and it costs about $880 a year in interest. Invested at 6% a year, which isn’t guaranteed, the same $4,000 might earn $240. Skip a 401(k) match of 50 cents per dollar on the first 6% of your pay, and on a $50,000 salary, $1,500 a year stays with your employer.

I wish someone had shown me this order sooner. It would have let me retire much earlier.

Think of it as a ladder with four rungs, each with a few steps. Start with the first step you haven’t finished. When it’s done, move to the next one. Keep the earlier ones going.

Rung 1: Stabilize

Cover what you can’t skip, take the free money, and get rid of the most expensive debt.

Cover the basics

Rent, food, utilities, getting to work, health insurance, and the minimum on every debt, paid on time. If you help your family, set that amount here, as a line item, not a leftover. More in sending money home without sinking your own future.

Get your full 401(k) match

If your employer adds money when you put part of your pay into your 401(k), that’s the match. Put in at least enough to get all of it. The money comes out of your paycheck before it reaches your bank, so you set it once, and it keeps going while you work on the next steps. With a match of 50% of what you put in, on the first 6% of your salary, each of those dollars brings 50 cents. Put toward a 22% card, the same dollar saves about 22 cents a year, so the match is worth more than twice as much. To decode your plan’s formula, see what a 401(k) match is, with real numbers. No 401(k) or no match at work? Go straight to your cards.

Pick your 401(k) funds

Do this as soon as your match is set up. It takes no extra money. The money going into your 401(k) has to be invested in something, and your plan probably lets you choose. If your plan has them, a few low-cost index funds, or one target-date fund, are simple choices. Check the fees first. The three-fund portfolio guide shows how. If your plan offers both Roth and traditional, the Roth vs traditional guide helps you pick. No 401(k) or no match? This step waits until you start saving for retirement, in Rung 3.

Pay off your credit cards

Credit cards charge a lot: the Federal Reserve’s latest average rate on bank credit cards that were charged interest is 22.36%. Paying one off earns its rate, for sure. Pay every minimum. Send every extra dollar to the card or loan with the highest rate until it’s paid off, then the next. That includes other debt at 10% or more, like a personal loan; the guide on which debt to pay off first shows the math. This step is done when your cards and any other debt at 10% or more are at zero. From then on, pay your cards in full every month.

Not enough left over to make progress? The fix is more income, not putting in less than the match. How raises get decided shows when to ask and what to bring.

Rung 2: Build the foundation

You’re not drowning anymore. Build a cushion, then clear the rest of the costly debt.

Build an emergency fund

Start with one month of essential expenses, in savings at a different bank from your checking, so the next car repair doesn’t go back on a card. Then keep going until you have three to six months saved. Aim for the higher end if your pay swings, you’re the only income, or family counts on your help. Automate a transfer for the day after payday; the emergency fund calculator shows how long it takes.

Pay down debt above 6%

Think car loans or private student loans. Above about 6%, paying off debt beats the 6% a year these guides assume for investing, and it’s certain. If debt doesn’t bother you, you can put more into your 401(k) first. It might earn more than the loan charges you, or it might not. I don’t like debt, so I’d pay off the loan first. Being debt-free is the best feeling. A federal student loan at 6% or less can stay on its minimum; see studentaid.gov.

Your mortgage is the exception. Keep it on its normal payment, even if its rate is above 6%. A mortgage is usually far bigger than your other debts, so paying it off first could put the rest of your retirement saving on hold for years. Retirement accounts give tax breaks up to a yearly limit, and a year you skip can’t be made up once its deadline passes. And money you put into your home is hard to get back out: you’d have to sell it or borrow against it. Once you’re saving 15% for retirement, extra mortgage payments are your call.

Rung 3: Grow

Your foundation holds. Now speed up.

Open an IRA

An IRA is a retirement account you open yourself: up to $7,500 for 2026, across all your IRAs. With a Roth, you pay the tax now and qualified withdrawals are tax-free; traditional may be deductible now, then taxed later. The Roth vs traditional guide helps you choose.

Save 15% for retirement

Count your 401(k), your IRA and any other retirement account together. William Bernstein, an investment adviser and author, says starting at 25 and retiring at 65 takes at least 15% of your salary. Start later, and you’ll need more. Raising your 401(k) with each raise gets you there.

Add the extras

A health savings account (HSA), if your health plan qualifies: money goes in before tax and comes out tax-free for qualified medical costs. A 529 plan, if you want to help your kids with college. And savings for a big cost coming up, like a car you need for work or a down payment on a home. Those can move ahead of saving 15%.

Max out your accounts

Past 15%, head for the limits: up to $24,500 of your pay into a 401(k) for 2026.

Rung 4: Optimize and expand

You make good money now. Make it work harder, and find ways to make more.

Aim higher

Save for what’s next, like retiring early. Money you’ll need within a few years stays in savings, where it won’t fall with the market. Longer goals can be invested, as the three-fund portfolio guide shows.

Earn more

A raise or a promotion is one way up. Another is sideways: take the skills you already have to a nearby field, or offer them to a different kind of customer. Side income counts too. You don’t have to wait for this rung to start.

What to do today

List your essential monthly expenses and every debt with its rate.
Start with Rung 1. The first step you haven’t finished is yours.
This week, set up the automatic move for that step. For the match, that’s enough going into your 401(k) to get all of it. Pick your funds while you’re in there. For a debt step, it’s an extra payment to the highest-rate card or loan. For the emergency fund, it’s a savings transfer.

More detail

What if my job has no 401(k) or no match?

Put every extra dollar on the cards and any other debt at 10% or more, then keep going. An IRA, in Rung 3, gives you a tax break without an employer.

Do I have to finish one step before starting the next?

Only the cards. They and any other debt at 10% or more get every extra dollar until they’re at zero. After that, you can split extra money between two steps. Either way, keep each earlier step going: keep paying every minimum, keep putting in enough for the match, and once your cards are at zero, keep paying them in full every month.

Where does helping family fit?

A regular amount belongs with your basics, at the very start. For family emergencies, decide in advance what counts and how much of your emergency fund one request can use, so you can help without borrowing.

What if my income is too high for a Roth IRA?

For 2026, the amount you can put into a Roth IRA shrinks to zero between $153,000 and $168,000 of income for single and head of household filers, and between $242,000 and $252,000 for married couples filing jointly. Above the top of your range, you can’t put money into a Roth IRA that year. A Roth 401(k), if your plan has one, has no income limit.

What changed for HSAs in 2026?

For 2026, you can put up to $4,400 into an HSA with self-only coverage, or $8,750 with family coverage. Starting in 2026, bronze and catastrophic plans available through a health insurance marketplace can make you eligible for an HSA. Check your own plan before you open one.

I’m starting late. What changes?

The order stays the same; the amounts go up. Bernstein’s math assumes about 3% a year after inflation. At that rate, someone who starts at 35 instead of 25 needs to save about 24% of their salary, not 15%, to end up with the same amount at 65.

You don’t have to understand all of this today. You just have to not quit.

The free 10-day email course covers most of these steps, one day at a time.

General education, not personal advice.