An MOT certificate is normally valid for 12 months from the date of the test. Details to know:

• The validity begins on the date of the MOT test, not when you book or pay the fee.
• You can renew up to one month (minus a day) before the current certificate expires without losing any days on the new certificate.
• Driving a vehicle with an expired MOT is illegal unless you are returning to a pre-booked test or repair appointment; there is no universal grace period.
• You can check your MOT status or expiry date on GOV.UK using your vehicle’s registration number, or by looking at the date printed on your current MOT certificate.

If you’d like, I can tailor this to your country or region (if different from the UK) and provide steps to check your current MOT status.