Inheritance tax calculator
Calculate potential inheritance tax (IHT) liability based on your client’s assets and liabilities.
What the calculator does
Our inheritance tax calculator offers a fast way to get an overview of your client’s potential liability, based on the value of their assets and any outstanding debts.
By entering values into the calculator for things like property, savings, investments, and personal belongings, you’ll get an indication of whether inheritance tax could apply if the client were to pass away today.
Keep in mind that this tool is designed to provide a high-level overview. Inheritance tax rules can be intricate, and a full review of your client’s unique situation is essential for tailored advice.
Important to know
A few important notes:
- The calculator doesn’t include gifts made during the client’s lifetime, which may still be taxable.
- It doesn’t account for assets held in trust that may be liable for inheritance tax.
- If your client owns a home, they might qualify for an extra allowance known as the residence nil-rate band.
- If your client owns agricultural or business assets, special inheritance tax reliefs may apply. These can be complex, so the calculator provides an indication only.
This is a general guide and not a substitute for professional tax or legal advice. Tax rules can change, and the impact will vary depending on individual circumstances.
Frequently asked questions
Does this calculator include lifetime gifts?
No. The calculator doesn’t include gifts made during the client’s lifetime, which may still be taxable.
What’s the residence nil-rate band?
The residence nil-rate band is an additional allowance that could help reduce the amount of inheritance tax due on an estate.
Does the calculator account for assets held in trust?
No. The calculator doesn’t account for assets held in trust that may be liable for inheritance tax.
What changed for Agricultural Property Relief and Business Relief in April 2026?
Inheritance tax reliefs for agricultural and business assets changed in April 2026. If your client owns these types of assets, the calculator may not reflect all available reliefs, so a full review may be needed.
Can this calculator replace a full IHT review?
No. The calculator provides a high-level overview only. A full review of your client’s individual circumstances is essential for tailored advice.
How does the calculator account for unused pensions coming into scope of IHT?
Most unused pension funds and pension death benefits are due to come into scope of inheritance tax from 6 April 2027. This calculator estimates the liability if your client were to pass away today, so it reflects the current rules. Don’t include unused pension funds that are currently outside the estate for inheritance tax purposes. We’ll update the calculator when the rules change in April 2027.