MOT guide

MOT Retest Rules UK Explained

If your car fails its MOT, you may be entitled to a free or reduced-cost retest depending on where repairs are done, when the vehicle returns and what failed.

Quick answer

Many MOT stations offer a free retest if the vehicle is repaired and returned within the allowed time period. Policies can vary depending on the type of failure and where repairs are carried out.

Always ask the test centre what their retest terms are before arranging repairs.

Main MOT retest rules

Same test centre

Returning to the original centre is usually required.

Time limit applies

Retests often depend on returning promptly.

Some items only

Simple failures may be easier to retest quickly.

Repairs onsite

If they repair it there, retest is often simpler.

Leave site repairs

Returning later may affect charges.

Expired MOT matters

Driving rules still apply if MOT has expired.

When a retest may be free

  • 1Vehicle repaired at the same garage
  • 2Returned within the retest window
  • 3Minor items corrected quickly
  • 4Centre offers free retest policy
  • 5Only failed items need rechecking

When you may need to pay again

If you take the car elsewhere for repairs, return after the allowed period or require a full fresh MOT inspection, another fee may apply.

Some garages charge a smaller partial retest fee rather than the full MOT price.

Best next steps after an MOT fail

Read the failure sheet carefully, prioritise safety-related items and compare repair quotes if needed.

Ask the test centre exactly how long you have for a retest and what it will cost.