Inheritance Tax on Property: A Complete Guide to Reducing Your Bill

With UK property values continuing to rise, more families than ever are finding themselves caught by inheritance tax. The family home often makes up the largest part of an estate, so understanding how to protect it is crucial.

This guide explains the allowances available, practical strategies to reduce your inheritance tax bill, and common pitfalls to avoid when passing property to the next generation.

Understanding Inheritance Tax on Property

Inheritance tax (IHT) is charged at 40% on the value of an estate above certain thresholds when someone dies. For most families, property represents the largest single asset in the estate.

Here's the key point: it's not just about the property's value. The tax is calculated on your entire estate, including savings, investments, and personal possessions. However, property often pushes estates over the threshold.

Why Property Matters Most

The average UK house price exceeded £290,000 in 2025. Combined with other assets, this means many modest estates now face inheritance tax bills that were previously only a concern for the wealthy.

Key Allowances & Thresholds for 2025/26

£325,000

Nil Rate Band (NRB)

The basic IHT threshold for individuals

£175,000

Residence Nil Rate Band (RNRB)

Additional allowance for family homes

£500,000

Combined Individual Threshold

NRB + RNRB for homeowners

£1,000,000

Combined Couple Threshold

When unused allowances transfer to spouse

Frozen Until 2028

These thresholds have been frozen since 2009 (NRB) and are not due to increase until at least April 2028. With property prices rising, this means more estates are being caught by IHT each year.

The Residence Nil Rate Band Explained

The Residence Nil Rate Band (RNRB) is an additional allowance introduced in 2017 specifically for family homes. It provides an extra £175,000 allowance on top of the standard nil rate band, but only if certain conditions are met:

1The property must have been the deceased's residence at some point
2The property (or equivalent assets) must be left to direct descendants
3Direct descendants include children, stepchildren, adopted children, and grandchildren
4The estate value must be below £2 million (otherwise the RNRB is tapered away)

The £2 Million Taper

If your estate exceeds £2 million, the RNRB reduces by £1 for every £2 over the threshold. This means an estate worth £2.35 million loses the entire RNRB.

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6 Strategies to Reduce IHT on Property

1Leave the Property to Your Spouse First

Transfers between spouses and civil partners are completely exempt from inheritance tax, regardless of value. When the first partner dies, their unused nil rate band and RNRB can transfer to the surviving spouse.

This effectively doubles the available allowances to £1 million when the second spouse dies, provided the property is left to direct descendants.

2Ensure the Property Goes to Direct Descendants

To claim the full RNRB, your home must pass to children, stepchildren, or grandchildren. Leaving property to siblings, nieces, nephews, or friends means losing this £175,000 allowance.

Planning Point

If you don't have direct descendants, consider whether it makes sense to leave a charitable legacy instead. Leaving at least 10% to charity reduces your overall IHT rate from 40% to 36%.

3Consider Downsizing Strategically

If you sell your main residence and move to a smaller property, you can still claim the RNRB on the new home. Any remaining proceeds from the sale could be gifted to reduce your estate further.

There are also "downsizing provisions" that may apply if you sold or gave away your home on or after 8 July 2015.

4Make Use of Gift Allowances

While you generally can't gift your main home and continue living there (this is a "gift with reservation"), you can use other gift allowances to reduce your overall estate value:

£3,000 annual exemption (can carry forward one year)
£250 small gifts to any number of individuals
Wedding gifts: £5,000 to children, £2,500 to grandchildren, £1,000 to others
Regular gifts from surplus income (potentially unlimited)

5Use Life Insurance to Cover the Bill

A whole-of-life insurance policy written in trust can provide funds to pay any IHT bill without the family having to sell the property. Writing the policy in trust means the payout isn't added to your estate.

Important

The policy must be written in trust from the outset. Transferring an existing policy into trust could trigger a "gift with reservation" if done incorrectly.

6Leave at Least 10% to Charity

If you leave at least 10% of your "net estate" (the taxable amount after deducting the nil rate band) to charity, the IHT rate on the rest of your estate drops from 40% to 36%. This can result in significant savings while supporting causes you care about.

Real-World Examples

Example 1: Married Couple with Property Left to Children

Situation: Margaret dies, leaving her £600,000 estate (including the family home worth £450,000) entirely to her husband David.

Result: No IHT is due because spouse exemption applies. Margaret's full NRB (£325,000) and RNRB (£175,000) transfer to David.

Later: David dies with an estate worth £850,000. He leaves everything to their two children.

Calculation: David's combined threshold is £1,000,000 (double NRB + double RNRB). As his estate is £850,000, no inheritance tax is payable.

Example 2: Single Person with High-Value Estate

Situation: Robert is single with an estate worth £750,000, including a house worth £500,000. He leaves everything to his two adult children.

Calculation: His threshold is £500,000 (NRB £325,000 + RNRB £175,000). Taxable estate: £750,000 - £500,000 = £250,000.

Result: IHT due = £250,000 x 40% = £100,000.

Common Mistakes to Avoid

Gifting Your Home but Continuing to Live There

This is a "gift with reservation of benefit" and HMRC will still include the property in your estate for IHT purposes.

Assuming Joint Ownership Avoids IHT

Your share of a jointly owned property is still part of your estate. Joint tenancy just affects who inherits, not the tax bill.

Forgetting the 7-Year Rule

Large gifts only become fully exempt after 7 years. Gifts made within 7 years of death may still be taxed.

Not Updating Your Will

Changes in family circumstances, property values, or tax rules mean wills should be reviewed regularly.

Ignoring the £2 Million Taper

High-value estates lose the RNRB progressively. Without planning, you could lose £175,000 of allowance.

Frequently Asked Questions

You can, but if you continue to live there or benefit from it in any way, it's treated as a 'gift with reservation of benefit'. HMRC will still include it in your estate when calculating IHT. You would need to pay a market rent or move out entirely for the gift to be effective.

The proceeds from the sale become part of your estate. However, if you sold the property on or after 8 July 2015 and downsized or sold your home, you may be able to claim some of the RNRB through the 'downsizing provisions'.

As the beneficiary, you don't directly pay IHT. The tax is paid from the estate before distribution. However, if the estate doesn't have enough liquid funds, the property might need to be sold to pay the tax bill.

No. The RNRB only applies to estates that include a residence that was, at some point, the deceased's home. It cannot be claimed against other assets.

Property probate typically takes 6-12 months, sometimes longer if the estate is complex or if the property needs to be sold. Getting a Grant of Probate is required before the property can be transferred or sold.

Klaro is not a law firm. We connect you with SRA-regulated solicitors.

This guide is for informational purposes. It does not constitute legal advice.

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