What to Do When Your Credit Card Is Lost or Stolen
27 June 2026 · BestCard Editorial Team

A lost or stolen credit card is one of the few situations where speed genuinely determines your financial exposure. The gap between blocking a card in two minutes versus two hours can be the difference between zero liability and a real loss.
Block the card immediately
Every major issuer's app has an instant card-block feature, usually accessible without even logging in fully in an emergency flow, or through a dedicated helpline number. Block the card the moment you realize it's missing — don't wait to see if you can find it first. Blocking is reversible if you locate the card later, but an unblocked lost card sitting in someone else's hands for even a short window is where most of the risk lives.

Check for unauthorized transactions right away
Once blocked, review your recent transaction history for anything you don't recognize. If you find unauthorized charges, follow the formal dispute process with your issuer immediately — our dispute resolution process guide covers exactly how that works and why reporting within the first few days matters for your liability protection.
Request a replacement card
After blocking, request a reissue through the same app or helpline. Most issuers can courier a replacement within a few business days, sometimes with an option for faster delivery at a fee. Your new card will have a different number, so anything linked to autopay on the old card — subscriptions, EMIs, UPI mandates — will need to be updated once the new card arrives.
File a police complaint if theft is suspected
If the card was stolen rather than simply misplaced, filing a police complaint — even a basic FIR — is worth doing both for your own record and because some insurance covers or dispute processes may require it as documentation, particularly for larger fraudulent amounts.
Understand your liability
RBI's framework limits your liability significantly if you report a lost or stolen card promptly, shifting more responsibility to the bank the faster you act. This is the same liability structure that applies to unauthorized transactions generally, and it's worth understanding in advance rather than during a stressful moment — see our credit card fraud protection tips guide for the broader picture.
After the immediate crisis
Once the situation is handled, it's worth reviewing whether you had transaction alerts active — if not, turning them on for your new card closes an obvious gap for next time. If you're a freelancer or self-employed and rely on a specific card for business expense tracking, our best credit cards for freelancers guide is worth revisiting when your replacement card arrives, in case a better fit exists.
The single most important habit
Block first, ask questions later. A card can always be unblocked; unauthorized spending in the window before you act cannot always be fully undone, even with strong liability protections.