UncategorizedForm: Corporation Tax: close company loans and arrangements to confer benefits on participators (CT600A (2015) Version 3) Use supplementary pages CT600A (2015) Version 3 for accounting periods starting on or after 1 April 2015. Guidance: Business Premises Renovation Allowance (BPRA) Guidance: Check if you can claim National Insurance relief in UK Freeport tax sites