Capital Allowances Act 2001 section 203

Amendment of returns etc

Section 203 requires taxpayers to notify HMRC and amend their tax returns when certain fixture-related events cause those returns to become incorrect.

• Taxpayers must notify HMRC when their tax return becomes incorrect due to specific fixture-related events, such as withdrawal of affordable warmth programme approval, another person having a prior right, restrictions on qualifying expenditure, or elections to fix apportionments
• Notice must be given within three months of the taxpayer first becoming aware that the return has become incorrect for any of these reasons
• The notice must specify how the return needs to be amended
• HMRC may make all necessary assessments and adjustments to give effect to the fixtures provisions in the chapter