Bank sign-up bonuses: easy money with fine print

Banks routinely pay $200, $300, sometimes $500 or more to new checking and savings customers. It sounds like a scam, but the economics are straightforward: acquiring a customer through advertising costs banks hundreds of dollars anyway, and a new checking customer historically sticks around for years, generating fees and deposits. The bonus is an acquisition cost — paid to you. For organized people, collecting these bonuses ('bank churning' in hobbyist circles) can add several hundred to a few thousand dollars a year. For disorganized people, the fine print claws most of it back.

How the offers actually work

A typical offer: 'Open a new checking account, receive $300 after two direct deposits totaling $2,000 within 90 days.' Every clause is load-bearing. 'New' means no account there recently — most banks exclude anyone who held or closed an account within the past 1–2 years. 'Direct deposit' traditionally means an employer payroll deposit, though transfers from some external banks often trigger the requirement (unofficially, and it varies). The dollar threshold and the deadline are enforced to the letter, and the bonus usually arrives 30–60 days after you qualify.

The fine print that eats bonuses

• Monthly maintenance fees: a $12/month fee can consume $144 of a $300 bonus in a year. Know the fee-waiver requirements (minimum balance or direct deposit) or close after the required period.
• Early-closure clawbacks: close the account within 6 months (sometimes longer) and the bank takes the bonus back. Calendar the safe-to-close date.
• Minimum balance requirements: some offers require $5,000–15,000 parked for 90 days. That money forgoing 4% elsewhere is a real cost — subtract it from the bonus.
• Taxes: bank bonuses are interest income, not credit-card-style rebates. Expect a 1099-INT; a $300 bonus is roughly $234 after tax in the 22% bracket.
• One-per-customer and household limits, and geographic restrictions on some offers.

Doing it deliberately

1. Only chase bonuses once your real banking is stable — hub account, emergency fund, autopay all running somewhere that isn't part of the game.
2. One offer at a time until you've done a few. The failure mode is juggling five sets of requirements in your head.
3. Keep a simple tracker: bank, open date, requirement, deadline, bonus posted date, earliest safe closure date, fee-waiver rule.
4. Never move autopay or your primary direct deposit into a bonus account you plan to close — redirect only what the offer requires.
5. Save the 1099-INTs for tax time, and expect some banks to send them even for amounts under $10.
6. When you close, get written or chat confirmation the account is at $0 and closed — zombie accounts that reopen from a stray deposit generate fees.

The asterisk on the savings offer matters: parking $15,000 for 90 days to earn $400 means forgoing roughly $150 of interest that money would have made at 4% in your own HYSA. The true after-tax profit is closer to $160 — still fine, but less than half the headline, and a good example of why every offer needs its opportunity cost subtracted before it goes on your list. Checking bonuses with direct-deposit requirements and no balance requirement are almost always the better hourly rate.

Is it worth your time?

Honest math: a careful person doing three or four offers a year might clear $800–1,200 after taxes for perhaps six to eight hours of total effort — over $100/hour, tax office visits included. But it's active income that stops the moment you stop, it scales poorly, and it rewards exactly one skill: administrative follow-through. If tracking deadlines makes you miserable, a high-yield account and the same hours spent on your career will beat it. If you're the spreadsheet type, it's some of the easiest safe money in personal finance.

Where to find the offers

The best offers rarely find you. Banks advertise their weakest public offers broadly and reserve richer ones for targeted mailers, in-branch promotions, and regional campaigns. Hobbyist communities maintain constantly updated lists of live offers with data points on which deposits actually trigger the bonus — search 'best bank account bonuses' plus the current month, or check the long-running aggregator threads. Before applying, always click through from the offer page itself (bonuses are usually tied to a specific link or promo code), screenshot the terms as they appeared the day you applied, and note the exact qualifying language. If a bonus fails to post on schedule, that screenshot plus a secure message citing the promo terms resolves the majority of cases in your favor — banks track these promotions carefully and generally honor documented claims without a fight.

The bottom line

Bank bonuses are real money offered for real reasons, with terms designed so that inattentive customers subsidize attentive ones. Decide which one you'll be before you apply: read every clause, track every date, and never let the game touch your actual financial infrastructure. Followed carefully, it's a few hundred low-risk dollars a year. Followed casually, it's a fee generator with your name on it. And keep the hobby in proportion: the same attentiveness applied to your savings rate, your investment costs, or a single salary negotiation will usually move more money than a decade of bonuses — churning is a nice side dish, never the meal.