Dwelling House Exemption Ireland
The Dwelling House Exemption is one of the most valuable tax reliefs in Irish estate planning — and one of the hardest to qualify for. It allows a beneficiary to inherit a residential property completely free of Capital Acquisitions Tax, which at 33% can otherwise turn a €350,000 house inheritance into a €108,900 tax bill. But the conditions are strict, and getting any one of them wrong means the exemption doesn't apply.
The Qualifying Conditions
To claim the Dwelling House Exemption, every one of these conditions must be satisfied:
The beneficiary must have lived in the property as their principal residence for the three years immediately before the inheritance. Weekend visits don't count. Neither does living there part-time while maintaining another residence. The three years must ordinarily be continuous and immediately preceding the date of death (or date of a qualifying gift, if one is permitted); where the property replaced another principal residence, the qualifying period can be combined across both homes under the replacement-dwelling rules.
The beneficiary must not own, or have an interest in, any other residential property at the date of the inheritance. If you own even a share of another property, the exemption fails. You must have disposed of any other residential property interest before the inheritance date.
The beneficiary must continue to live in the inherited property (or a replacement dwelling) as their principal residence for six years after the inheritance. If you move out or sell within six years without an applicable exception, the exemption is withdrawn and CAT becomes payable. Replacement dwellings (selling and buying another home to live in) are permitted if Revenue's replacement-dwelling conditions are met.
Why It Matters for Cohabiting Couples
This exemption is particularly significant for unmarried partners. Cohabiting couples are classified under CAT Group C — "strangers in blood" — with a lifetime tax-free threshold of just €20,000. Without the Dwelling House Exemption, a surviving partner inheriting even a modest family home faces a devastating tax bill.
For a €350,000 property, the calculation without the exemption is straightforward: €350,000 minus the €20,000 Group C threshold equals €330,000 taxable, at 33% that's €108,900 in tax. The Dwelling House Exemption can eliminate this entirely — but only if the couple has been living together in the property for at least three years and the survivor owns no other residential property.
Common Pitfalls
Investment property ownership. If the surviving partner owns a rental property, even one inherited years ago and rented out ever since, the exemption fails. The "no other residential property" condition catches investment properties as well as second homes.
Breaks in residence. A period spent in hospital, a nursing home, or temporarily abroad can break the three-year continuous residence requirement. Revenue examines the facts on a case-by-case basis, but the burden of proof is on the beneficiary.
Trusts and indirect interests. Inheriting through certain trust structures can disqualify the exemption. The beneficiary must take the property directly.
The six-year claw-back. Families who plan to sell the inherited property to fund care for another relative, divide the proceeds among siblings, or relocate for work within six years should factor the claw-back into their calculations.
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Planning for the Exemption
If you're in a cohabiting relationship and own property together, ensuring you meet all the conditions before death occurs is critical. This may involve restructuring property ownership, disposing of other residential interests, and making sure both partners are registered at the address for the full three-year period.
For families where a child is caring for an aging parent in the parent's home, the exemption provides a powerful incentive to formalise that living arrangement well in advance.
The Ireland End-of-Life Planning Guide covers the Dwelling House Exemption as part of a broader Capital Acquisitions Tax planning framework, including Section 72 insurance policies and other strategies for reducing inheritance tax exposure.
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