Synopsis: OBR reports an increase in the number of families who will face IHT

According to the Office for Budget Responsibility (OBR) the number of UK families paying IHT on death has reached a 35 year high. The main driver of this is the surge in UK house prices.

Almost three times as many families as six years ago are expected to face the tax.

The OBR estimates that just over 40,000 families will face IHT in the current tax year but that this will rise to over 45,000 in 2016/17. The new residence nil rate band, when it is introduced (gradually) from 2017/18, will have an initial ‘reducing’ effect but it is thought this reduction will be gradually countered by predicted increasing house prices. In 2009/10 only 2.6% of deaths generated an IHT liability. This has risen to 7.1% in 2015/16. The OBR predicted that IHT will affect 8% of estates in 2016/17.

Another contributor to the increasing number of estates being affected by IHT (in addition to house prices) is, of course, the frozen nil rate band. It has been at £325,000 since 2009 after all.

The Treasury expects IHT to yield around £4.4bn in 2015/16. So while IHT is not exactly the government’s main contributor it’s creeping up.

Back to the residence nil rate band. As indicated above, the OBR reckons that once this is in force the number of deaths subject to IHT will fall by a third to £30,000 (around 5.4% of total deaths). But this number will then start to rise again, according to the OBR, to around 6% in 2020/21. Despite cutting the number of estates subject to tax, the RNRB is not estimated to cut the overall tax yield which is expected to grow gradually to £5.6bn by 2020/21.

In closing this summary, the % of the overall IHT yield, paid by estates worth more than £1m rose from 4% in 2006/7 to 7% in 2012/13.


IHT continues to be an economically and emotionally important tax.

The majority of the overall IHT yield is paid by estates over £1m and the majority of these are more likely to be individuals who are or could be the clients of advisers.

Effective IHT planning with residential property is notoriously difficult though. The GWR and POAT rules make sure of that. And for estates worth more than £2m the RNRB will be reduced (by £1 for every £2 of value over £2m) and completely extinguished at £2.35m. Remember, too, that in querying whether your estate is over £2m you ignore business property relief and agricultural property relief. Sneaky!

For those minded to do something about IHT but where the main asset giving rise to the IHT liability is residential property then (assuming neither paying a full market rent or sharing occupation of the property with the donee is acceptable) it might be worth looking at protecting the liability with insurance where this is commercially viable. For a couple the product to use should be a last survivor plan held in an appropriate trust. Premiums would usually be exempt and the sum assured tax free.

If the taxpayer(s) couldn’t or didn’t want to pay any or all of the premiums the donees might be prepared to pay or contribute. After all the policy would provide a sum assured that would benefit them.

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