Inheritance and estate tax explained for investors

Published April 7, 2026 · 2 min read

Inheritance and estate tax explained for investors, with a worked example, a checklist and the mistakes to avoid.

Why this matters for investors

For investors, tax is one of the few costs that can be managed, and after-tax returns are the ones that matter.

Worked example

Here is the calculation with sample figures. Change any number in the Inheritance Tax Calculator to run your own.

Inheritance and estate tax: how it works

Inheritance or estate tax is charged on the value passed on at death above an exempt amount.

Exempt amounts, rates and who pays vary sharply by country.

A second example with larger figures

Scaling the inputs up shows how the result moves. Percentages stay the same, so the tax grows in proportion to the amount it is applied to.

Using the calculator step by step

1. Open the Inheritance Tax Calculator.
2. Enter your own figures on each numbered line.
3. Set the rate to the one that applies to you. Defaults are examples, not advice.
4. Read the result and the formula below it.

Key terms

Gross amount

The amount after tax is added, which is usually what a consumer pays.

Marginal rate

The rate applied to the next unit of income. It decides how much of a raise or a deduction you keep.

Taxable income

Income left after allowances and deductions, on which the tax rates are applied.

Zero rate

A rate of 0% on a taxable supply. Unlike an exemption, the seller can usually still reclaim tax on costs.

Tax credit

An amount subtracted directly from the tax bill, worth its full face value.

A quick checklist for investors

1. Value the estate.
2. Apply exemptions and reliefs.
3. Estimate tax on the excess.

Common mistakes to avoid

• Ignoring exemptions for spouses or charities.
• Using outdated thresholds.

Frequently asked questions

This article is general information for planning, not tax advice. Rates and rules change; confirm with your tax authority or a qualified adviser.