Why inheritance tax planning matters now
Rising property values, frozen thresholds and forthcoming changes to how pensions and business assets are treated mean more UK families are drifting into inheritance tax territory each year. IHT is charged at 40% on the value of your estate above the available nil-rate bands — a figure most people would rather see passed to their children, grandchildren or a chosen cause than to the Treasury.
The good news: almost every IHT bill can be reduced with planning done in good time. This guide walks through the current rules, the levers available, and where retirees, business owners and blended families most often lose ground.
1. Know your allowances
The starting point is the nil-rate band of £325,000 per person. When a qualifying main residence passes to direct descendants — children, grandchildren, step-children — an additional residence nil-rate band of up to £175,000 can be claimed. Between spouses and civil partners, any unused allowance transfers on the second death.
In practical terms, a married couple with a family home worth £350,000 or more can typically pass on up to £1,000,000 free of IHT. The residence band tapers by £1 for every £2 of estate value above £2,000,000, so wealthier estates often lose it entirely without planning.
2. Use lifetime gifting well
Gifts made more than seven years before your death normally fall outside your estate. Between three and seven years, taper relief reduces the tax due. Several categories are exempt regardless of the seven-year rule:
- Annual exemption: £3,000 per tax year, with one year's unused allowance carried forward.
- Small gifts: up to £250 per person, per year, to as many people as you like.
- Wedding gifts: up to £5,000 to a child, £2,500 to a grandchild, £1,000 to anyone else.
- Gifts from surplus income: regular payments from income (not capital) that don't reduce your standard of living — genuinely one of the most under-used exemptions.
- Gifts to a spouse, civil partner or UK charity: fully exempt.
3. Consider trusts
Trusts are the workhorse of serious estate planning. A well-drafted trust does three things at once: it can move value out of your personal estate for IHT, ring-fence assets from a beneficiary's divorce or creditors, and give you a say in how and when capital is released.
Common structures include discretionary trusts (flexibility for changing family circumstances), life-interest trusts (income for a surviving spouse with capital preserved for children — invaluable in second marriages) and bloodline trusts (assets protected across generations so an in-law's divorce can't extract them). Relevant property trusts have their own 10-yearly and exit charges; a thoughtfully sized trust keeps these modest while delivering long-term protection.
4. Business and agricultural relief
For business owners and farmers, reliefs can be transformative. Business Relief offers up to 100% relief on qualifying trading businesses and unlisted shares held for at least two years. Agricultural Relief works on similar principles for qualifying farmland and buildings.
The pitfalls are almost always structural: excess cash on the balance sheet, investment properties held inside a trading company, or a business drifting toward being "mainly an investment vehicle" in HMRC's eyes. Any of these can dilute or disqualify the relief. Ideally, structure is reviewed years before a sale, retirement or succession — not in the final months.
5. Life cover written in trust
A whole-of-life policy calibrated to the expected IHT bill and written into trust means the payout sits outside your estate and reaches your family quickly, often before probate concludes. It doesn't reduce the tax — it funds it, so the family home, business, or investment portfolio doesn't have to be sold in a hurry to settle HMRC.
6. Common mistakes we see
- Wills that ignore the residence nil-rate band by leaving property into a discretionary trust in the wrong way.
- Gifting the family home while continuing to live in it — a classic "gift with reservation of benefit" that HMRC pulls back into the estate.
- Naming the estate — not the intended beneficiary — as the recipient of life insurance or pension death benefits.
- Second marriages without protective trusts, leaving children from a first relationship reliant on a step-parent's future will.
- Doing nothing, and assuming the surviving spouse will "sort it out later" — by which point most of the seven-year clock and gifting options are gone.
Frequently asked questions
What is inheritance tax planning in the UK?
Inheritance tax (IHT) planning is the legal process of arranging your estate — cash, property, investments, pensions and business interests — so that as much wealth as possible passes to your family rather than to HMRC. In the UK it typically combines using the nil-rate bands, lifetime gifting, trusts, life cover written in trust, and reliefs such as Business Relief and Agricultural Relief.
What is the current UK inheritance tax threshold?
Each individual has a nil-rate band of £325,000, plus a residence nil-rate band of up to £175,000 when a qualifying home passes to direct descendants. Married couples and civil partners can transfer unused allowances, so a couple can potentially pass on up to £1,000,000 free of IHT. The residence nil-rate band tapers away for estates over £2,000,000.
How much can I gift each year without inheritance tax?
You can give away £3,000 per tax year under the annual exemption (and carry forward one unused year). Small gifts of up to £250 per person, wedding gifts, and regular gifts made from surplus income are also exempt. Larger gifts are 'potentially exempt transfers' — they fall outside your estate if you survive seven years, with taper relief on IHT between years three and seven.
Do trusts still reduce inheritance tax?
Yes, when used correctly. Discretionary trusts, life interest trusts and bloodline trusts remove assets from your personal estate, protect wealth from divorce and creditor claims of your beneficiaries, and let you keep control of how and when capital is distributed. Most relevant property trusts have their own 10-yearly and exit charges, which good planning keeps modest.
How can business owners reduce inheritance tax?
Qualifying trading business interests and unlisted shares can attract Business Relief of up to 100%, meaning they pass free of IHT after two years of ownership. Farmland and qualifying farm assets can attract Agricultural Relief on the same principle. Structure matters — investment activity, cash reserves and property holding can dilute the relief, so business owners should have their structure reviewed well before a sale or succession.
When should I start inheritance tax planning?
As early as possible. The seven-year rule on gifts, the two-year qualifying period for Business Relief, and the compounding value of trust-held assets all reward planning done years in advance. In practice, the moment your estate approaches the combined nil-rate bands — or you own a business, second property, or pension of meaningful size — is the point to take advice.
Important
This article is general information about UK inheritance tax and is not personal legal, tax or financial advice. IHT thresholds, reliefs and reforms change; your family's plan should be built around your specific circumstances and reviewed regularly.