You must declare speeding fines. They are a punishment for the criminal offence of speeding.

If you don't know the date, make a rough guess of the year. Use your cover letter to set out any explanation you want to give such as you can't remember the precise date etc.

Generally, speeding fines will not lead to a refusal of naturalisation.

The guidance states that fixed penalty notices (such as speeding or parking tickets) must be disclosed, although will not normally be taken into account unless:
  • you have failed to pay and there were criminal proceedings as a result; or
  • you have received numerous fixed penalty notices.
Generally, if the fine was 3 years ago, it is their policy to ignore - but you must still declare.

The lawyers recommend declaring speed awareness courses.

If you want to know details of your fines you can do a SAR for information held about you by the police. This can be done online https://www.acro.police.uk/subject_access.aspx

See page 26 of the AN Booklet.

...where it says:
You must give details of all criminal convictions both within and outside the UK. These include road traffic offences.

Fixed penalty notices (such as speeding or parking tickets) must be disclosed, although will not normally be taken into account unless:
  • you have failed to pay and there were criminal proceedings as a result
  • you received 3 or more fixed penalty notices at any level
  • in the past 3 years you received 2 or more fixed penalty notices, at least one of which was at the upper levels (fine of £200 or more).
We will consider the applications against the factors listed in the Good Character guidance.

Where a fixed penalty notice or fiscal fine has been referred to a court due to non-payment, or the notice has been unsuccessfully challenged by the person in court, we will consider it as a conviction and assess it in line with the new sentence imposed.

Drink driving offences must be declared. If you have any endorsements on your driving licence you must provide the paper counterpart.

A driving conviction may not be disregarded despite any penalty points being removed from your driving licence.
See also: Parking tickets, FPNs and motoring convictions.

If you have many fines, penalties, etc. and are concerned about the impact on your application, you may want to seek legal advice.