Calculate the estimated expiry
Use the start date shown in the warranty terms. For many purchases this is the purchase date, but some manufacturers use delivery, activation, registration, repair, or replacement dates.
estimated warranty expiry
Choose a start date
- 30-day reminder—
- 90-day check-in—
- Coverage length12 months
Your dates stay in this browser. Nothing is submitted to byASB.
How the calculation works
The tool adds the selected number of days, months, or years to the date you enter. For month- and year-based coverage, it preserves the calendar date where possible and uses the final valid day when a target month is shorter.
What can change the real warranty end date?
- The coverage may start on delivery, activation, or product registration rather than purchase.
- A replacement or repair may continue the original coverage or create a different period.
- Some warranties require registration, authorized sellers, maintenance records, or original proof of purchase.
- Consumer protection law may provide rights beyond a written manufacturer warranty.
Does this tool upload the purchase date?
No. The calculator runs with JavaScript in your browser. The form does not send the entered dates to byASB, and the page does not place an analytics cookie.
Keep the receipt and written warranty terms. This calculator is for convenient date planning and is not legal advice or a guarantee that a claim will be accepted.