Warranties

Warranty Expiry Tracker: Keep Coverage Dates on Your iPhone

To track a warranty, you need three things: the purchase date on the receipt, the warranty period from the manufacturer or seller, and a reminder that fires a few weeks before the coverage ends. Most warranty claims fail on the first two—people can prove neither when they bought the product nor that it is still covered.

Updated August 4, 2026 · 6 min read

1. Find the warranty period

The warranty period rarely sits in one obvious place. Check, in rough order of authority: the warranty card or leaflet in the box, the manufacturer’s product page or registration confirmation, the retailer’s receipt (extended warranties are often sold at the till), and any statutory consumer rights in your country, which can protect you regardless of what the leaflet says.

Note who backs the warranty—the manufacturer or the retailer—because that decides whom you contact when something breaks, and whether registration was required to activate it.

2. Work out the real end date

Warranties state a period, not a date: “24 months from purchase”. The date worth tracking is the purchase date plus that period—so a laptop bought on 12 March 2026 with a two-year warranty is covered until 12 March 2028.

  • Use the receipt’s purchase date, not the delivery or setup date, unless the terms say otherwise.
  • Extended and statutory coverage can run past the manufacturer period—track the longest one.
  • If registration extended the warranty, keep the confirmation that proves the longer period.

3. Keep the proof a claim will ask for

A reminder gets you to the claim; proof gets the claim accepted. Before the box and paperwork disappear, keep together in one place:

  • The receipt or invoiceShows the purchase date and seller—the anchor of every claim.
  • The serial numberPhotograph the label on the product itself, not just the box.
  • The warranty termsThe leaflet or page that states the period and what it covers.
  • Registration confirmationIf registering extended or activated the coverage.

4. Track the date with AI, then confirm it

A receipt is a dense, crumpled document—exactly where typing dates goes wrong. Photograph it and let an AI scanner suggest the date instead. DueCalm’s flow keeps the decision with you:

  1. Photograph the receipt or warranty card.Flatten it and include the purchase date or stated end of coverage.
  2. AI suggests a date.Where only a purchase date is visible, add the warranty period yourself.
  3. You confirm the end date.Check the arithmetic and the date format before saving.
  4. DueCalm reminds you before coverage ends.The reminder stays on your iPhone with the label you chose.

Faded thermal receipts defeat every scanner eventually. If the print is unreadable, enter the date manually while you can still read the original.

5. Use the reminder to act, not just to know

Set the reminder two to four weeks before the warranty ends and treat it as a final inspection: test the product properly, report any developing fault while repair or replacement is still free, and decide deliberately whether an extended warranty is worth the price. In DueCalm, the photo you scanned is discarded after processing—the provider request is configured for zero data retention—so keep the original receipt safe; the reminder points at the deadline, the receipt wins the claim. Details are on the privacy page.

Common questions

How do I find out when my warranty expires?

Take the purchase date from your receipt and add the warranty period from the manufacturer’s terms or warranty card. If the product was registered, check the confirmation—registration sometimes extends the period.

Do I need the receipt if I have the box?

Usually yes. The box proves the product exists; the receipt proves when and where you bought it, which is what the warranty period is measured from. Photograph the receipt before it fades.

Can AI read a warranty end date from a receipt?

It can suggest the purchase date from a clear photo, and sometimes a printed coverage date. You still confirm the final date—especially when it has to be calculated from a period like “24 months from purchase”.

When should the warranty reminder fire?

Two to four weeks before the end date: enough time to test the product, report a fault, and go through a repair process while coverage still applies.