Build the net estate
Add property, savings, investments, pensions, business assets and other items, then subtract liabilities and qualifying relief.
UK inheritance tax planner
Build a present-day estate, apply the nil-rate and residence bands, keep gifts on the seven-year clock and test the main ways an inheritance-tax bill may change.

The actual light-mode dashboard, shown with the worked example.
From estate value to estimated bill
The planner keeps assets, reliefs, liabilities, gifts and allowances visible instead of presenting one unexplained tax figure.
Add property, savings, investments, pensions, business assets and other items, then subtract liabilities and qualifying relief.
Use the nil-rate band, residence band, £2 million taper and transferable percentages from a late spouse or civil partner.
Record exempt, failed and settled gifts, with drop-out dates, taper bands and the annual exemption used.
See when a charity legacy reaches the 10% test and compare the tax bill with the standard 40% rate.
Model the reformed business and agricultural relief allowance and optionally bring pensions into the estate from April 2027.
Compare charity, gifting and pension scenarios against the actual estate figures while keeping the result framed as planning, not advice.

The estate behind the total
Each estate row records what the item is, whether it is included and why, so the net value can be followed back to the inputs.
Gifts do not all behave the same way
The gift register separates exemptions from potentially exempt transfers and gifts already beyond seven years.

Planning scenarios, not legal advice
The Reduce page recomputes common scenarios from the figures already entered.
How it works
No installation, app store or account is required.
Add assets, liabilities, reliefs and transferable bands.
Enter dates, values, recipients and the exemption type.
Check the calculation, test reduction routes and print the summary.
Private by design
The planner runs locally in your browser. It has no account, cloud database or analytics, and it does not upload asset values, gifts or family information.
It does not file anything with HMRC or fetch live valuations. Export a JSON backup when you want to move or preserve the plan.
Frequently asked
It works on Windows, Mac and Linux computers in a modern version of Chrome, Edge, Safari or Firefox.
No. It is an organiser and estimator, not probate, legal or HMRC filing software.
It models one estate. A widowed owner can apply transferable nil-rate, residence and qualifying business or agricultural relief percentages from a late spouse or civil partner.
No. The seven-year clock is an inheritance-tax rule. Local-authority care-fee assessments use a separate deprivation-of-assets test with no fixed seven-year limit.
No. Inheritance tax depends on ownership, exemptions, relief, valuation and future rule changes. Use the planner as a worksheet and take professional advice where needed.
The single-file UK Inheritance Tax Planner app, a quick-start guide, and licence and support details. Etsy delivers the download after purchase.
Buy the UK Inheritance Tax Planner on Etsy, download it once and use it without an account or subscription.
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