Recommendation 9

We have taken evidence on several options for seeking to remove outdated tax reliefs from the statute book. A “one in, one out” rule for tax reliefs would be a blunt instrument which could reduce flexibility in policy-making. Sunset clauses have their place, but tax relief expiry dates can act against the certainty important to promoting long-term investment. A formal, structured system of five-yearly reviews would provide enough time to judge the effectiveness of a tax relief and allow an opportunity to remove those reliefs no longer meeting their objectives.