Can I backdate a SORN?

When a SORN starts depends on the timing of the application and vehicle-tax position. In some situations it starts immediately; in others, when applied for in the month the tax expires, it starts from the first day of the next month.

Because it cannot be backdated, leaving the application until after tax or insurance has lapsed can create a period where the vehicle is not correctly covered by tax/SORN rules.

Apply as soon as you know the vehicle will be kept off-road.

For 'Can I backdate a SORN?', keep the DVLA confirmation or reference number once the transaction is completed. Tax, SORN and keeper records are separate, so a dated confirmation helps show exactly when your responsibility changed.

Check the current source for 'Can I backdate a SORN?' before acting if the relevant rule, policy, fee or eligibility has recently changed. Keep any official confirmation or reference number produced by the process because it can help resolve a later query. This note is specific to answer 429.