Mortgage interest relief at source, or MIRAS, was a scheme introduced in the United Kingdom from 1983 in a bid to encourage home ownership; it allowed borrowers tax relief for interest payments on their mortgage.
In the 1983 Budget Geoffrey Howe raised the tax allowance from £25,000 to £30,000. Unmarried couples with joint mortgages could pool their allowances to £60,000, a provision known as Multiple Mortgage Tax Relief. This remained in place until the 1988 Budget, when Nigel Lawson ended the option to pool allowances from August 1988. Lawson later publicly expressed regret at not having implemented the change with effect from the time of the budget, as it is generally accepted that the rush to beat the deadline fuelled a sharp increase in house prices.
There is a similar scheme in the Republic of Ireland, although not available for mortgages drawn down after 2013.
- Is it time for the return of Miras?, Times Online, 21 November 2008
- Bank of England Statistics Diary January 2007 Archived 2009-08-15 at the Wayback Machine, Bank of England, January 2007
- "'Time is right' for mortgage relief to end". The Guardian,10 March 1999. Retrieved 30 November 2019.
- "Mortgage Interest Relief (Tax Relief at Source - TRS)". Revenue. Retrieved 30 January 2019.