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Use this service to send accounting period information to HMRC if you are an agent or organisation.
How to complete supplementary pages CT600N and what information you need to include.
Find out how the GAAR Advisory Panel opinions are used by HMRC to decide whether tax arrangements are abusive.
Non-resident businesses can get advice on how UK tax law applies using HMRC's Inward Investment Support service.
Use these road fuel charges from 1 May 2019 on your VAT return, to account for private consumption of fuel on a business vehicle.
Find out how much you'll need to pay if Digital Services Tax applies to your business.
This manual provides guidance on when and how to apply the VAT joint and several liability measure
Check agent authorisation technical specifications if you are a software developer.
Get guidance from HMRC if you're a tax agent or an adviser.
Get guidance from HMRC if you’re a tax agent or an adviser.
This document contains the following information: Agreement between the UK and Bahrain for the avoidance of double taxation.
This document contains the following information: Agreement between the UK and Georgia for the avoidance of double taxation: Treaty Series No. 41 (2005)
This document contains the following information: Agreement between the UK and Hong Kong for the avoidance of double taxation.
Tax treaties and related documents between the UK and Algeria.
Investigation into certain corrosion resistant steels, originating in the People’s Republic of China.
Changes to the duty codes for certain hot-rolled flat products of iron, non-alloy or other alloy steel, originating from China.
Investigation into new and re-treaded tyres for buses or lorries, originating in the People’s Republic of China.
Tax treaties and related documents between the UK and Aruba.
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