Taxation of Chargeable Gains Act 1992 section 284

Income tax decisions

Section 284 establishes that finalised income tax assessments and decisions are binding and conclusive when determining a person's liability to capital gains tax.

• Any assessment to income tax made under the Income Tax Acts is treated as conclusive for capital gains tax purposes.
• Any decision on a claim made under the Income Tax Acts is similarly binding when calculating CGT liability.
• Any decision on an appeal against an income tax assessment or claim is also conclusive for CGT.
• This rule applies wherever the Taxation of Chargeable Gains Act 1992 makes a person's CGT liability dependent on the provisions of the Income Tax Acts.