From 6 April 2017, the Residential Nil Rate Band (RNRB) will be available for residences inherited by direct descendants (see below) in addition to the existing Nil-Rate Band (NRB) which is currently £325,000.

From 2017/18 the RNRB will be phased in, at this point the sum which will be able to be claimed is £100,000, increasing by £25,000 each year until 2020/21 when it reaches £175,000. The current rate of NRB will be frozen at £325,000.00 during this period.

As with the NRB, any unused RNRB can be transferred to a surviving spouse or civil partner, with the effect that the maximum combined IHT threshold for such couples will be a total of £1m by 6 April 2020.

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