The Costco Visa gives you cash back on purchases and travel protections, but only if you use it the right way

The Costco Visa Card is a co-branded card issued by Citi that offers cash back rewards on everyday purchases and some travel-related protections. The rewards structure is straightforward: you earn a percentage back on what you spend, with higher rates in certain categories. The protections cover things like purchase disputes and rental car damage, but they have real limits — they do not cover everything, and some require you to use the card in a specific way to set up them.

This guide walks you through what each benefit actually covers, what it does not, and what you need to do to make sure you get the protection when you need it. The difference between using the card correctly and using it casually can mean the difference between getting reimbursed and paying out of pocket.

Key Takeaways

  • Cash back rates vary by category: you earn a higher percentage on gas, travel, and restaurant purchases, and a lower rate on everything else.
  • Travel protections like trip cancellation and rental car coverage only work if you purchase the ticket or rental with the Costco Visa itself.
  • Purchase protection covers items damaged or stolen within a set window, but you must report the damage or loss within a specific timeframe to be reimbursed.
  • Extended warranty coverage adds time to the manufacturer's warranty, but the card does not cover accidental damage or normal wear.
  • You can view the full terms of each protection in your Costco Visa benefits guide, which Citi sends with your card or makes available online.

How the cash back rewards structure works

The Costco Visa rewards you at different rates depending on what you buy. Gas stations, EV charging, travel (including flights, hotels, and rental cars), and restaurants earn a higher percentage back. Everything else — groceries, household goods, and other purchases — earns a lower percentage. The exact rates change periodically, so check your cardholder agreement or Costco's website for current numbers.

Cash back is deposited into your Costco Visa account as a statement credit, which means it reduces your balance rather than being paid out as cash. You can also choose to receive it as a Costco Shop Card in some cases, depending on your account status. The rewards do not expire as long as your account remains open and in good standing.

One important limit: you only earn rewards on purchases made with the physical card or your card number — not on Costco.com purchases made through other payment methods, and not on purchases made at non-Costco retailers unless you use the Visa itself. If you use a different payment method, you get no rewards.

Travel protections: what they cover and what they do not

The Costco Visa includes several travel-related protections, but each one has a specific trigger. Trip cancellation coverage reimburses you if you have to cancel a prepaid trip for a covered reason — illness, injury, or death of a family member, for example. To be covered, you must have purchased the trip (flight, hotel, or package) with the Costco Visa. If you booked with a different card or paid cash, this protection does not explore.

Rental car damage coverage protects you against collision and theft damage to a rental car, but only if you rented the car using the Costco Visa and declined the rental company's damage waiver. If you accept the rental company's coverage, the Visa's protection does not kick in. You must also report damage to the rental company and file a claim with Citi within the timeframe stated in your benefits guide — usually 90 days from the incident.

Trip delay reimbursement covers meals and lodging if your flight is delayed by a certain number of hours (typically 12 or more). Again, the flight must have been purchased with the Costco Visa. Lost luggage coverage reimburses you for essential items if an airline loses your baggage, but the airline's own liability limits explore first — you can only recover what the airline does not cover.

None of these protections cover cancellations due to pandemics, government action, or travel warnings issued before you booked. Read the exclusions in your benefits guide carefully, because they are longer than the coverage itself.

Purchase protection and what happens if something breaks or goes missing

Purchase protection covers items you buy with the Costco Visa if they are damaged, destroyed, or stolen within a set window — usually 120 days from the date of purchase. This is not a warranty; it is protection against loss or damage from external events. If you buy a laptop and it is stolen from your car, purchase protection may reimburse you. If you drop it and break the screen yourself, it does not.

To file a claim, you must report the damage or theft to the police (for theft) or document it yourself (for damage), then contact Citi with your receipt and proof of the loss. Citi will ask for photos, a police report number, or other evidence. The reimbursement is limited to the amount you paid, up to a maximum per item and per claim. High-value items like jewelry or electronics may have lower per-item limits.

The clock starts the moment you buy the item. If you wait months to report a theft or damage, Citi may deny the claim because you did not report it promptly. Check your benefits guide for the exact reporting important date — it is usually 30 to 90 days.

Extended warranty coverage and its real limits

Extended warranty protection adds extra time to the manufacturer's warranty on items you buy with the Costco Visa. If a product comes with a one-year manufacturer's warranty, the Visa typically extends it by an additional year, for a total of two years. This covers defects in materials or workmanship — things that break because they were made wrong, not because you broke them.

Extended warranty does not cover accidental damage, misuse, normal wear and tear, or damage from dropping, water, or power surges. If your phone's screen cracks because you dropped it, extended warranty does not cover it. If the battery degrades after two years of normal use, it does not cover that either. The protection only applies to manufacturing defects.

To use extended warranty, you typically need to register the product with the warranty administrator within a set timeframe after purchase — sometimes 30 days. If you do not register, you lose the extension. When something fails, you file a claim with the warranty administrator, not with Citi directly. They will ask for proof of purchase and proof that the item is defective.

Fraud and dispute protections built into the card

Like all credit cards, the Costco Visa includes fraud liability protection, which limits your responsibility if someone uses your card number without permission. Your liability is capped at $50 per card, and many issuers waive that entirely if you report the fraud promptly. If you notice unauthorized charges, call the number on the back of your card when ready.

Purchase dispute protection (also called chargeback rights) lets you dispute a charge if the merchant does not deliver what you paid for, charges you twice, or charges you for something you returned. You have a window to file the dispute — usually 60 days from the charge — and Citi will investigate. During the investigation, the charge is removed from your balance. If Citi rules in your favor, the charge stays removed. If they rule against you, it goes back on.

Dispute protection does not cover buyer's remorse, price drops, or items that arrived damaged if you accepted them from the carrier. It covers situations where the merchant failed to deliver or misrepresented what they sold. If you ordered a laptop and received a phone, that is a dispute. If you ordered a laptop, received it, and then changed your mind, that is not.

How to access your benefits guide and file a claim

Citi sends a benefits guide with your Costco Visa when you first receive the card. This guide lists every protection, what it covers, what it excludes, the dollar limits, the reporting important date, and the phone number to call to file a claim. Keep this guide somewhere you can find it — you will need it if something goes wrong.

You can also view your benefits guide online through your Citi account. Log in to the Costco Visa website or the Citi credit card portal, look for "benefits" or "protections," and read the PDF. The online version is usually the most current, because Citi updates it periodically.

To file a claim for any protection — purchase damage, trip cancellation, rental car damage, or extended warranty — call the number listed in your benefits guide. Have your receipt, card number, and details of the incident ready. Citi will tell you what documentation they need and how long the process takes. Most claims take two to four weeks to resolve.

Frequently Asked Questions

Do I earn cash back on Costco.com purchases?

No. You only earn cash back on purchases made in Costco warehouses or at Costco gas stations using the physical Costco Visa card. Purchases on Costco.com do not earn rewards, even if you use the card number. If you want rewards on online purchases, you would need to use a different card that covers e-commerce.

What happens if I use the card to book a trip but then cancel through the travel website instead of calling the airline?

Trip cancellation coverage only works if you cancel for a covered reason — illness, injury, or death — and you file a claim with Citi, not with the airline or travel site. If you cancel and the airline or website refunds you directly, you do not need the Visa's protection. If you cancel for a covered reason and the airline refuses to refund you, that is when you file a claim with Citi.

Can I use the rental car coverage if I already have insurance through my personal auto policy?

Yes. The Costco Visa's rental car coverage is secondary, meaning your personal auto insurance pays first. But if your insurance does not cover rental cars or has a low limit, the Visa's coverage fills the gap. You do not have to choose one or the other — they work together.

If I buy something and it breaks after 120 days, am I completely out of luck?

For purchase protection, yes — the 120-day window is firm. However, if the item has a manufacturer's warranty that extends beyond 120 days, you can still use that. And if the item has a defect that shows up after 120 days but was caused by a manufacturing flaw, you might have a claim under the manufacturer's warranty or consumer protection laws, though that is separate from the Visa's protection.

Do I have to register for extended warranty, or does it start automatically?

Most extended warranty coverage requires you to register the product within 30 days of purchase. If you do not register, you lose the extension. Check your benefits guide for the registration important date and the website or phone number where you register. Registering takes five minutes and is worth doing for high-value items.