BY NATHAN SPIECKER for WEEKLY VOLCANO | 10/30/2026
A credit card promises cash back. A furniture store offers six months of no-interest financing. At checkout, another retailer offers to split a purchase into four smaller payments through a buy now, pay later plan.
Cash back sounds good when we’re buying groceries. Six months without interest can help when a refrigerator breaks unexpectedly. Four smaller payments can make a purchase feel easier to fit into this month’s budget.
But each offer comes with conditions. The details are in the card agreement, financing terms, or payment schedule we accept before completing the purchase. Whether an offer works for us depends on what it costs and what we agree to do.
Credit card rewards can put a little money back in our pockets. A card might offer cash back on groceries, points for travel, or a bonus after we spend a certain amount in the first few months. For households already using a credit card for planned expenses and paying the statement balance in full, those benefits can be worthwhile.
The spending requirement deserves a closer look. Some cards charge an annual fee. Others offer a sign-up bonus only if we spend a minimum amount within a set period. A card that pays more for certain purchases may offer less for everything else.
Buying things we wouldn’t otherwise purchase just to earn a bonus can quickly outweigh the reward. Cash back on something we didn’t need is still money spent.
Even a planned purchase may cost more when we pay by credit card.
Across Washington, we’re seeing more merchants charge a fee for credit card payments. Surcharges are subject to rules about when and how they may be charged. A 3% fee, for example, would more than offset 2% cash back on the same purchase. When a no-fee payment option is available, comparing the costs can help us decide whether using the card is worthwhile.
Promotional financing offers a different benefit. A store offering six months at 0% annual percentage rate (APR) gives us time to pay without interest during that period, provided we follow the agreement’s terms. That can help when an appliance breaks before the budget is ready for it. But we still need to know the length of the promotion, the required payments, and what happens when the promotional period ends.
A low required payment may leave a substantial balance to pay later. Before accepting the offer, we can divide the amount financed by the number of months in the promotion to estimate what we would need to pay each month to pay off the balance before the promotional period ends. If that amount isn’t realistic alongside rent, utilities, groceries, and other bills, the offer may be harder to manage than it first appears.
Buy now, pay later offers a similar appeal through smaller installments, often presented at checkout. A common arrangement divides a purchase into four payments, with the first due at purchase or shortly afterward. Many of these plans don’t charge interest when payments are made as agreed.
A $120 purchase may feel more manageable as four $30 payments than as one $120 expense. But those installments still take money out of future paychecks. If the car insurance bill is due the same week as the third payment, that money is already spoken for.
The schedule matters even more when we have several plans at once. One purchase might have payments due this week, another next week, and a third after payday. Each installment may look small on its own, but the combined amount can put pressure on the same paycheck. Checking the payment dates alongside other bills gives us a more realistic picture of what we can afford.
It’s also worth knowing what happens if a payment is missed. Some plans automatically withdraw payments from a debit card or bank account. If the money isn’t there, we could face an overdraft or other bank fee, in addition to any fee charged by the provider. The provider’s terms determine whether late fees apply and what other steps it may take when a payment is overdue.
Household budgets don’t always go according to plan. A reduced paycheck can leave less money for a credit card bill. A car repair can take the money set aside for a furniture payment. Several small installments can come due in the same week. When that happens, the consequences depend on the agreement: a card balance may start accruing interest, a promotional balance may remain when the offer ends and begins accruing interest at the regular APR, or a missed installment may lead to fees or other collection efforts.
The way these offers are presented can make the commitment easy to overlook. Rewards draw our attention to what we might earn. Promotional financing emphasizes the time without interest. Buy now, pay later breaks the total price into smaller numbers. Those features can be useful, but they don’t tell us the whole cost of the purchase.
Before accepting an offer, it helps to ask four questions: What do we get? What fees or interest might apply? When are payments due? What happens if we can’t pay on schedule?
For a rewards card, estimate the value based on purchases we already make, then subtract any annual fee and account for payment surcharges. For promotional financing, mark the end date and work out the monthly payment needed to clear the balance before the promotion expires. For buy now, pay later, add up the installments already scheduled and check whether the new payments fit alongside other bills.
If the terms aren’t clear, it’s worth asking questions or comparing another option before completing the purchase. Paying upfront, waiting until we’ve saved more, or choosing a different product may be a better fit. A promotion isn’t automatically a bad deal, but the advertised benefit alone can’t tell us whether it’s right for our circumstances.
Sometimes, the commitment affects more than one person. Adding someone as an authorized user, opening a joint account, or asking someone to cosign can have financial consequences for both people. Before entering that arrangement, we need to understand what each person is responsible for — and what could happen if things don’t go as planned.
This column is produced by the Washington State Department of Financial Institutions, Washington’s financial services regulator, to provide consumer education and protection. Learn more or file a complaint at www.dfi.wa.gov.
