The Finance Act 1999 (c. 16) is an Act of the United Kingdom Parliament prescribing changes to Excise Duties; Value Added Tax; Income Tax; Corporation Tax; and Capital Gains Tax. It enacts the 1999 Budget speech made by Chancellor of the Exchequer Gordon Brown to the Parliament of the United Kingdom.

In the UK, the Chancellor delivers an annual Budget speech outlining changes in spending, tax and duty. The respective year's Finance Act is the mechanism to enact the changes.

Long-term rules governing the various taxation methods are contained within specific taxation acts (for instance Capital Gains Tax Legislation is contained within Taxation of Chargeable Gains Act 1992). The Finance Act details amendments to be made to each one of these Acts.

• Text of the Finance Act 1999 as in force today (including any amendments) within the United Kingdom, from legislation.gov.uk.