What's actually changing — the two-minute version
Since 2015, defined contribution pensions have been the cleanest inheritance vehicle in Britain: a SIPP sat outside your estate, and if you died before 75 your children paid no income tax on it either. Whole retirement strategies were built on "spend the ISA, leave the SIPP."
From 6 April 2027, most unused DC pension funds — SIPPs, personal pensions, workplace DC pots, AVCs — count as part of your estate for inheritance tax. The final rules are now confirmed in HMRC's technical note, and three details matter:
The final rules, in three lines. Deaths before 6 April 2027 stay under today's rules — the change is not retrospective. The spouse and civil partner exemption survives, so for couples this is a second-death problem. And the admin lands on your executors, not the pension scheme — they'll need a valuation of every pot you hold.
The sting is for deaths at 75 or older, where beneficiaries already pay income tax on what they draw. The two taxes stack: 40% IHT first, then income tax on what's left. For a higher-rate-taxpayer child inheriting a large pot, the effective rate is 64% — 67% if they're an additional-rate payer. Defined benefit death benefits and most state-administered schemes are out of scope.
Who's actually caught
Run the numbers before you assume you're in the 1.5%. The allowances haven't changed: £325,000 nil-rate band per person, £175,000 residence nil-rate band if your home goes to children or grandchildren, both transferable between spouses — up to £1 million for a couple leaving a home to direct descendants. An estate under that, even with the pension counted in, still owes nothing.
The people genuinely caught are the ones who built wealth inside wrappers: professionals with £400k+ SIPPs, a paid-down home in an expensive postcode, and ISAs on top. Adding the pension to the estate is also what pushes many past the £2 million taper, where the residence nil-rate band erodes at £1 for every £2 over — the marginal rate through that band effectively hits 60%.
Step zero: find out if this is your problem
Our IHT on pensions calculator models your estate under today's rules and the April 2027 rules side by side — allowances, the £2m taper, the income-tax stack at 75+, and ranked mitigation strategies with the savings quantified for your numbers.
Run the 2027 calculator →The checklist: nine steps for nine months
1. Establish whether you're caught — with numbers, not vibes
Total your estate as it will look from April 2027: home, ISAs, GIA, cash, and every unused pension. Compare it against your allowances (remember the transferable £1m for couples with children inheriting the home). If you're comfortably under, your checklist is steps 2 and 9 only. If you're over — or the pension pushes you past £2m — keep reading.
2. Consolidate your pension records for the people you'll leave behind
Under the final rules your executors must report every unused pot to HMRC and pay the IHT on it. Executors of people with five forgotten workplace pensions are going to have a miserable 2027. A single up-to-date list — provider, plan number, current value, nomination — is now more than good housekeeping; it's what the reporting duty runs on. (This is exactly what WealthR's net-worth tracking holds — and the pensions stage of the Playbook walks through rounding up old workplace pots.)
3. Review your death benefit nominations
The spouse exemption survives, so "everything to my spouse first" still defers the whole IHT question to second death. But nominations written years ago — to children directly, or split across a family — may now route money straight into a taxable estate when routing via the survivor would not. Check what your scheme actually has on file; it's a ten-minute form.
4. Re-plan your withdrawal order
The old playbook — spend ISA first, preserve the SIPP for the kids — is now backwards for anyone with IHT exposure. Drawing pension steadily during retirement, ideally within the basic-rate band, and recycling what you don't spend into ISAs or gifts shifts wealth out of the double-tax zone at 20% instead of 64%. This is the single biggest lever for most people, and it works better the earlier it starts.
5. Start gifts out of surplus income — and document them
Regular gifts made from income you don't need are immediately exempt from IHT — no cap, no seven-year wait — provided they're regular, from income, and don't dent your standard of living. If you're drawing more pension than you spend (see step 4), this is where the excess goes. Keep a simple record of income, spending and gifts each year; your executors will thank you.
6. Start the 7-year clock on bigger gifts
Larger one-off gifts fall out of your estate after seven years. The clock only starts when the money moves — which is precisely why this is a 2026 job, not a 2033 one. Gift with your eyes open: you're giving up control, and care costs and your own longevity come first.
7. Price whole-of-life cover, written in trust
If the bill can't reasonably be shrunk — large pot, older, uncomfortable gifting — a whole-of-life policy in trust pays out outside the estate to meet the IHT charge, and the premiums can themselves qualify as gifts from income. It's one of the few mitigations that doesn't require giving capital away during your lifetime.
8. Watch the £2 million cliff specifically
If the pension pushes your (joint) estate into the £2m–£2.7m band, you're in the worst marginal zone in UK tax. Everything in steps 4–6 counts double here, because each pound moved out of the estate also claws back 50p of residence nil-rate band.
9. Book the adviser conversation this year, not next spring
Every estate-planning adviser in the country is going to spend early 2027 saying the same sentence: "I wish you'd come in a year ago." The slow levers — withdrawal order, gifting records, the 7-year clock, trusts — are worth more with every month of runway. For estates over ~£1m, this is firmly regulated-advice territory: get a plan signed off while there's still time to execute it.
Same date, second cliff: 6 April 2027 also cuts the cash ISA limit to £12,000 for under-65s while savings tax rises two points — if you hold serious cash, that one's yours too: the cash ISA guide.
A worked example, honestly run
Take a widower of 80 with a £1m SIPP and a £1m house-plus-ISA estate, everything to two higher-rate-taxpayer children. Under today's rules the SIPP passes outside the estate; the children pay income tax on drawdown but no IHT on it. From April 2027 the same death puts £2m in the estate: allowances are eroded by the taper, IHT takes its 40% slice of the excess, and the children still pay 40% income tax on what they draw from the inherited pension. On the pension alone, the combined take approaches 64p in the pound. Now rerun it with ten years of basic-rate drawdown recycled into ISAs and documented gifts from surplus income — the calculator shows the difference for your own numbers, and it's routinely six figures.
If you advise clients rather than being one: this is the question your inbox will fill with between now and April. The WealthR adviser cockpit models estate and pension-IHT scenarios per client — including the 2027 rules — so you can show the before/after in the meeting rather than promising a follow-up letter.
Frequently asked
Will my pension be taxed when I die from April 2027?
Does my spouse pay inheritance tax on my pension from 2027?
What if someone dies before 6 April 2027?
Who deals with the tax — my family or the pension company?
Should I take money out of my pension before April 2027?
This is general information, not financial, tax or legal advice. Inheritance tax depends on individual circumstances, and the April 2027 rules are modelled per the published policy — final liability depends on valuations, gifts in the prior seven years, reliefs and case-specific factors. WealthR is not authorised by the Financial Conduct Authority. For estate planning decisions, please consult a qualified FCA-regulated financial adviser. HMRC-estimated figures (10,500 newly liable estates a year, roughly 1.5% of UK deaths) are from the government's published technical documentation for the measure.