Blended Family Estate Planning Ireland

The Two Problems Blended Families Face in Ireland

Estate planning in Ireland is built around a legal framework — the Succession Act 1965 — that assumes a simple family structure: married parents, biological children, one household. Blended families, second marriages, and cohabiting partnerships break those assumptions in ways that create real financial and legal consequences.

The first problem is the legal right share. Under the Succession Act, a surviving spouse has an automatic right to one-third of the estate if there are children, or one-half if there are no children. This statutory entitlement overrides the Will. In a blended family where one spouse has children from a previous relationship, the legal right share can redirect assets away from those children entirely — even if the Will explicitly provides for them.

The second problem is tax classification for cohabitants. Despite significant progress in social welfare law (cohabiting partners now qualify for the Bereaved Partner's Contributory Pension after five years of cohabitation, or two years if raising dependent children together), Revenue still classifies cohabitants as "strangers in blood" under Group C of Capital Acquisitions Tax. The lifetime tax-free threshold for Group C is just €20,000, with everything above taxed at 33%. A cohabiting partner who inherits a family home worth €350,000 faces a tax bill of approximately €108,900.

How the Legal Right Share Creates Conflict

Consider a common scenario. David is in his second marriage to Sarah. He has two adult children from his first marriage and one child with Sarah. David's estate is worth €600,000 — primarily the family home (€400,000) and savings (€200,000).

David wants to split everything equally: one-third to Sarah, one-third divided between his two children from his first marriage, and one-third to his youngest child with Sarah. He writes a Will reflecting this.

The problem is that Sarah's legal right share entitles her to one-third of the estate automatically — €200,000 — regardless of what the Will says. She can elect to take her legal right share instead of the bequest under the Will. If the Will leaves her less than one-third, she has the right to claim the difference. This is an absolute right that cannot be overridden by the terms of any Will.

Meanwhile, David's children from his first marriage have no automatic statutory right to inherit. They can petition the court under Section 117 of the Succession Act, arguing that David failed in his "moral duty" to make proper provision for them. But Section 117 applications must be brought within six months of the first Grant of Representation being extracted, and success is not guaranteed — particularly for adult children who are financially independent.

Strategies for Blended Families

Structure Joint Tenancy Carefully

Property held as joint tenants passes automatically to the surviving owner by right of survivorship, bypassing the Will and probate entirely. This is efficient for married couples with a straightforward family structure.

In a blended family, joint tenancy can be a problem. If David and Sarah hold the family home as joint tenants and David dies first, Sarah inherits the entire property automatically. David's children from his first marriage receive nothing from the property, regardless of what the Will says.

The alternative is tenants in common, where each owner holds a defined share (typically 50/50, but any split is possible). David's share passes under his Will, allowing him to direct it to his children while granting Sarah a right of residence during her lifetime. This approach requires careful Will drafting — ideally with a solicitor experienced in blended family estates — but it preserves flexibility.

Use a Life Interest Trust

A life interest (or right of residence) trust in the Will lets the surviving spouse live in the family home for their lifetime, with the property ultimately passing to the testator's children. This is the most common solution for blended families in Ireland where the family home is the primary asset.

The structure works like this: David's Will leaves a life interest in the property to Sarah (she can live there until she dies, remarries, or voluntarily leaves), with the remainder passing to his three children in the shares he specifies. Sarah doesn't own the property — she has a right to occupy it. The children's inheritance is protected but deferred.

Consider Section 72 Life Insurance for Cohabitants

For unmarried partners, a Section 72 life insurance policy is one of the most effective tools to mitigate the 33% Capital Acquisitions Tax. The policy payout is exempt from CAT provided the entire proceeds are used to settle the beneficiary's inheritance tax liability within one year of death.

Key requirements: the policy must be fully executed before the policyholder's 75th birthday, the cover must be at least eight times the annual premium, and the policy must be designated as a Section 72 policy at inception. Reviewable premium policies start cheaper but can increase significantly at review dates — guaranteed premium policies cost more upfront but provide certainty.

Qualify for the Dwelling House Exemption

The Dwelling House Exemption removes the family home from the CAT calculation entirely, but the qualifying conditions are strict. The inheriting person must have lived in the property as their principal residence for the three years immediately before the death, must not own any other residential property, and must continue to live in the inherited property for six years after the inheritance (or until they die, if sooner).

For cohabiting partners, this exemption is often the difference between keeping the family home and being forced to sell it to pay the tax bill. But the three-year residency requirement means it only works if the couple was genuinely living together in the property.

The Credit Union Nomination Angle

In blended families, credit union nominations offer a targeted way to direct specific funds to specific people outside the Will. A member can nominate any person to receive up to €27,000 in credit union shares and deposits directly upon death, bypassing probate entirely.

This is useful when a parent wants to ensure a particular child receives a set amount quickly — especially children from a previous relationship who may not benefit from assets that pass automatically to the surviving spouse. Keep in mind that marriage automatically revokes all existing nominations, so anyone who remarries must re-nominate immediately. And while nominated funds bypass probate, they still count toward the beneficiary's CAT lifetime threshold.

Getting the Structure Right

Blended family estate planning in Ireland requires more than a standard Will. The interaction between the legal right share, CAT thresholds, joint tenancy rules, and Section 117 claims creates a web of competing interests that a generic template can't navigate.

The Ireland End-of-Life Planning Guide covers each of these mechanisms in detail — including worked examples of CAT calculations for cohabitants, the Dwelling House Exemption qualifying checklist, and a Section 72 policy comparison worksheet. It's designed for families where the default legal framework doesn't fit the actual family structure.

If your family situation involves a second marriage, stepchildren, or a long-term cohabiting partnership, getting professional advice from a solicitor who specialises in succession law is worth the cost. What a guide can do is help you prepare for that conversation with the right questions and a clear understanding of the options.

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