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Failed? How retakes work
You can sit the test again after 48 hours. Each attempt costs £23.50.
Facts checked 25 October 2026
The rules
- You can't sit the test again within 48 hours of a fail.
- Each attempt is a new booking at £23.50.
- Book the same way as before: online or on 0344 994 4488.
Before you rebook
- Take a timed mock to find the topics that cost you marks.
- Practice those topics until you get them right without thinking.
- Take more timed mocks until you score 45 or more several times in a row.
- Then book. Rushing back after 48 hours without revising usually means paying £23.50 twice.
Most common reasons for failing
- Ticking one box on a "choose two" question.
- Missing "not" in the question.
- Answering from habit instead of the rule.
- Running short of time on the last questions.
Where these facts come from
Rules change. Check with CITB before you book. Spotted something out of date? Tell us.