Where does my next dollar go?

If you’re staring at a paycheck and don’t know whether the extra should go to the 401(k), the Roth, the HSA, the credit card, the brokerage, or a 529 — you’re not behind. You’re looking at a menu without a map.

Here’s the map. Five minutes.

If most of those words are new, the gentler starting point is Your first paycheck — come back here when payroll, deductions, and benefits feel familiar.

The one idea behind the order

Money has two jobs: be there when you need it, and grow over time. Until the first job is covered, the second one doesn’t matter — one rough month can wipe out a year of growth.

Once you have a safety net in place, send every dollar to the spot where it’ll grow the most. That’s the whole idea. The five buckets below are just that order, spelled out.

You’re not trying to beat anyone. You’re building something that holds up through a bad year, grows for decades, and quietly helps the people who come after you.

Five buckets, in order

Five things to remember. If you forget everything else, hold these.

1. The match. Get every dollar your employer will match in your 401(k). It’s free money — a 50–100% return the day you sign up, and it keeps compounding for the rest of your career. Don’t leave it on the table, not even while you’re still building a safety net. No match offered? Skip ahead; you’ve already done step 1.
2. Safety net (also called an emergency fund). In this order: cash to cover your biggest insurance deductible, then any debt at about 7% interest or higher, then 3–6 months of essential expenses in savings. Boring. Not optional.
3. Roth IRA + HSA. Open a Roth IRA and put in what you can each year, up to $7,500 in 2026. Opening the account is step one; buying an investment inside it is step two — money that just sits in the account in cash isn’t doing the work. (If your income is too high to put money in directly, there’s a legal, ordinary workaround called a “backdoor Roth.”) If your health insurance is a high-deductible plan, fund the HSA too, and invest the money inside it. Don’t treat it as a checking account for medical bills.
4. More into the 401(k). Raise the percentage you put in until you hit the yearly limit ($24,500 in 2026). If your employer’s plan limits you to a smaller percentage because you earn too much (the IRS calls this being “highly compensated”), that smaller cap is your ceiling. You can’t ask your way past it.
5. Everything else. A regular brokerage account, a 529 for kids’ college, extra payments on the mortgage, more giving. Only after the first four are full. This is where the choice depends on what you want, not on tax rules.

The longer 9-step version lives in the Money Order of Operations guide — same logic, more detail.

Your spot in the order

Tick what’s already true. The unchecked items are where your next dollar belongs — in order. Saves to your browser. Use the share link to keep a copy or send it to a partner.

Two things nobody tells you

Each is worth a 10-minute phone call.

“Am I actually getting the full match?” A few catches quietly cost people money every year:

• Some plans require a minimum to qualify. You might have to put in at least 6% of your pay to unlock the full match. Put in less, and the employer match shrinks with you.
• The match might not be yours yet. Vesting means the employer’s share doesn’t fully belong to you until you’ve been there a certain number of years. Leave early, and you walk away with less than the statement showed.
• Hitting the yearly limit too fast. If you front-load and reach the IRS limit in October, some plans stop matching for the rest of the year. Others “true up” — adding the missed match in a final paycheck — but only if the plan’s rules say so. Plenty don’t.

Don’t assume. Read your plan’s Summary Plan Description (SPD) — HR can send it — or call them and ask.

“Does my plan allow a mega backdoor Roth?” Skip this one if you’re not yet maxing the regular 401(k) — it’s only useful after that. This is the biggest unlock for higher earners, and most people never hear about it. The rough idea:

Most 401(k) plans cap your direct contribution at $24,500 in 2026. But the IRS lets the total going into a 401(k) — yours + your employer’s + extra after-tax money — reach $72,000. If your plan lets you (a) make extra “after-tax” contributions and (b) immediately move them into a Roth bucket, you can put tens of thousands more into a Roth account each year, legally.

The question to ask HR or the plan administrator, word for word:

“Does the plan allow after-tax (non-Roth, non-pre-tax) contributions, and can I convert or roll them to a Roth account while I’m still working there?”

A “yes” can mean $20,000+ of extra Roth space every year. A “no” tells you to send anything beyond your 401(k) and Roth IRA to a regular brokerage instead.

When enough is enough

The question hiding behind “should I split off to a brokerage or a 529?” is really: am I close enough to retirement to ease up?

Two things both need to be true:

1. The accounts that get tax breaks are genuinely full. Match, Roth IRA, HSA, 401(k) at the cap (or your plan’s cap if you’re capped early), and mega backdoor if your plan offers one.
2. You’re on pace. Three steps in the Compound Growth tool:
   • Enter your current saving pace; leave the defaults (7% return, 3% inflation).
   • Tick Show in today’s dollars so the number is in money you recognize, not future-inflated dollars.
   • Multiply the projected balance by 4% — the 4% rule says that’s roughly what you could spend each year for ~30 years. If it covers the lifestyle you want, you’re past the point where every retirement dollar is urgent.

Until both are true, every retirement dollar is still doing work. The next dollar just needs a home outside whatever account is currently full.

If you do nothing else this week

Log into your 401(k) and check that you’re getting the full match.

That’s it. One log-in, one number to confirm. It’s the best return you’ll get anywhere — guaranteed by your employer, automatic, and it compounds for the rest of your career. Everything else in this guide is what to do after you’ve handled this.