Do I have to pay inheritance tax on an inheritance?
Yes — inheritance tax in Iceland is 10%, but it applies only to the part of a deceased estate's net assets above a tax-free threshold, and a spouse pays no inheritance tax. The tax rests on the Inheritance Tax Act no. 14/2004. The rate is 10% and has stayed unchanged, but the tax-free threshold rises each year in line with the consumer price index. For estates arising in 2026 the threshold is ISK 6,789,790 — and this is exactly where a common trap lies: the figure changes every year (it was ISK 6,498,129 in 2025), so older amounts still circulating online are outdated. The myth is twofold: that all inheritance is tax-free, or the reverse, that a surviving spouse has to pay. Both are wrong. Heirs benefit from the threshold in proportion to their share, and a spouse (and a cohabiting partner who inherits under a will) is exempt. The tax is declared in an inheritance report and calculated on the estate's net assets — assets less debts — above the threshold.
📋 The rules
- Inheritance tax is 10% and applies to the net assets of an estate (assets less debts) above the tax-free threshold (Act no. 14/2004).
- The tax-free threshold for estates arising in 2026 is ISK 6,789,790; it changes each year by the consumer price index (2025: ISK 6,498,129).
- A surviving spouse pays no inheritance tax; the same applies to a cohabiting partner who inherits under a will.
- Heirs benefit from the threshold in proportion to their share; the tax is calculated on the excess and an inheritance report must be filed.
- Advance inheritance also bears inheritance tax, and the rate is the same, 10%, regardless of the number of heirs or the degree of kinship (apart from the spouse exemption).
🔓 Exceptions
- A spouse and a cohabiting partner (who inherits under a will) are exempt from inheritance tax — the largest exception to the liability.
- Certain gifts and assets passing to recognised charitable or public-benefit bodies can enjoy relief or exemption under the Act.
- The tax-free threshold is itself an exemption by amount: the first ISK 6,789,790 (2026) of the estate's tax base bears no tax, regardless of the number of heirs.
⚠️ Penalties & fines
Inheritance tax is not optional, and paying it is part of settling a deceased estate. If an inheritance report is not filed or assets are understated, settlement of the estate is delayed, and the tax authorities can estimate the base and levy tax with a surcharge and default interest. The district commissioner does not conclude the division until the report is in, so a wrong or incomplete report can delay payout of the inheritance for months. A hidden cost lies in a stale figure: someone who counts on the old threshold — for example ISK 6,498,129 from 2025 or even older amounts — under- or over-estimates the tax, because the 2026 threshold is ISK 6,789,790 and rises every year. It is also common to forget the spouse exemption and wrongly assume a surviving spouse must pay, or the reverse, to assume all inheritance is tax-free and skip the report. Finally, advance inheritance can catch people out: it bears the same 10% tax, so lifetime gifts intended to avoid the tax do not do so automatically. The right course is to work through the inheritance report carefully and use the current tax-free threshold for each year.
📎 Official sources
- Ísland.is · Inheritance tax (rate and tax-free thresholds) →
- Ísland.is · Inheritance tax, tax-free thresholds (ISK 6,789,790, 2026) →
- Althingi · Inheritance Tax Act no. 14/2004 →
❓ Frequently asked
How high is inheritance tax in Iceland?
Inheritance tax is 10% and applies to the net assets of an estate above the tax-free threshold under Act no. 14/2004. The rate has stayed unchanged at 10%, but the tax-free threshold rises each year, so what really changes between years is the exempt amount rather than the percentage itself.
What is the tax-free threshold in 2026?
For estates arising in 2026 the tax-free threshold is ISK 6,789,790, and the first amount up to that figure bears no inheritance tax. The threshold changes on 1 January each year by the consumer price index, so older figures such as ISK 6,498,129 from 2025 are outdated and give the wrong result.
Does a surviving spouse pay inheritance tax?
No, a surviving spouse pays no inheritance tax, and the same applies to a cohabiting partner who inherits under a will. It is a widespread misconception that the spouse must pay tax on the inheritance from the deceased, but the spouse exemption is precisely one of the main exceptions to the liability.
What is the tax calculated on?
Inheritance tax is calculated on the net assets of the estate, that is assets less debts, to the extent they exceed the tax-free threshold. Heirs benefit from the threshold in proportion to their share, and the assets and debts must be set out in an inheritance report that forms the basis of assessment.
Does advance inheritance also bear tax?
Yes, advance inheritance also bears inheritance tax and the rate is the same, 10%, as on inheritance at death. Giving inheritance during your lifetime therefore does not automatically avoid the tax, and such an advance payment must be properly accounted for to the tax authorities.
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