Inheritance Tax Calculator Ireland (2026)

Estimate Capital Acquisitions Tax (CAT) on an Irish inheritance or gift: pick your relationship group, enter the value and any prior benefits, and see the 33% calculation with the math shown. Free, instant, and calculated entirely in your browser.

Estimated Capital Acquisitions Tax

€16,500.00

33% of the amount above your remaining Group A threshold · estimate only

Threshold remaining

€400,000

Taxable amount

€50,000

The math

Benefit €450,000 = €450,000 taxable benefit

Group A threshold €400,000 − prior benefits €0 = €400,000 remaining

(€450,000€400,000) × 33% = €16,500.00

This estimates Capital Acquisitions Tax at the standard 33% rate using the group tax-free thresholds that apply to benefits taken on or after 2 October 2024 (Group A €400,000, Group B €40,000, Group C €20,000). It does not apply reliefs and exemptions that can reduce or eliminate the bill, including the spouse/civil partner exemption (fully exempt), the dwelling house exemption, agricultural relief, and business relief, and it does not calculate surcharges or interest. Revenue makes the binding calculation; talk to a solicitor or tax adviser before acting on an estimate.

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