HM Customs & Excise: Includes information about the UK's Custom and Excise Department and includes the prototype on-line VAT (Value Added Tax) returns system.
Inland Revenue: Responsible for the administration of income tax, national insurance contributions, corporation tax, capital gains tax, petroleum revenue tax, inheritance tax and stamp duties.
The Adjudicator's Office: Explains the mechanism for complaining about the Inland Revenue and Valuation Office and HM Customs and Excise.
Valuation Office Agency: Site explaining the role of the VOA in connection with council tax bands, rating assessments of non-domestic property, Capital Gains and Inheritance Tax valuations and "right to buy" determinations in the UK.
Valuation Tribunal Service: Independent body responsible for hearing appeals concerning tax valuations. Site provides details of VTS procedures and contacts.