Tax for Married Couples and Civil Partners: Joint Assessment & Separation

Tax Treatment of Married Couples and Civil Partners

In Ireland, married couples and civil partners have a choice of how they are taxed. The three options are: joint assessment, separate assessment, and assessment as single persons.

Updated for 2026 Revenue rates.

1. Joint Assessment

This is the default option and is generally the most tax-efficient. Under joint assessment:

• One spouse is the assessable person (usually the higher earner) and is responsible for filing returns and paying tax
• Both spouses' incomes are combined for tax purposes
• The standard rate band is increased — a married couple jointly assessed gets a larger band at 20% (up to approximately €65,000 in 2026, with possible transferability)
• Both spouses' tax credits are combined (personal credits of €1,875 each = €3,750 total)
• Any unused tax credits or bands of a lower-earning spouse can be transferred to the higher-earning spouse

2. Separate Assessment

Each spouse is assessed independently on their own income. This may be chosen if:

• Both spouses wish to maintain financial independence
• One spouse has significant deductions or reliefs that would be lost under joint assessment
• The couple wishes to avoid one spouse being liable for the other's tax

In separate assessment, each spouse gets their own tax credits. Any jointly owned income (e.g., rental income from a jointly owned property) is split 50:50.

3. Assessment as Single Persons

Each spouse is treated as a completely separate single person for tax purposes. No credits or bands are shared. This is rarely the most beneficial option.

Transfer of Tax Credits and Bands

Under joint assessment, any unused portion of the following can be transferred from one spouse to the other:

• Personal tax credit (€1,875 per person)
• Employee tax credit (€1,875 per employee)
• Home carer tax credit (up to €1,700 — available if one spouse cares for a dependent person)
• Standard rate band — the unused portion of the €65,000 band (approximately) can be transferred, up to certain limits

Home Carer Tax Credit for Married Couples

If one spouse stays at home to care for a dependent person (child, elderly relative, or person with a disability), the couple may qualify for the Home Carer Tax Credit of up to €1,700 for 2026. The caring spouse can earn up to €7,200 per year before the credit reduces.

Tax on Separation and Divorce

When a married couple or civil partner separates, the tax treatment changes:

• Year of separation — joint assessment still applies for the full tax year unless you opt out
• Subsequent years — each former partner is assessed as a single person
• If maintenance payments are made, the paying spouse may deduct them (if Revenue rules followed) and the receiving spouse declares them as income
• Transfers of assets between spouses as part of a separation are generally exempt from CGT and CAT

Widow/Widower Tax Position

In the year of bereavement, the surviving spouse retains the full married tax treatment. In the following year, they become a single person but may qualify for:

• Widowed person's tax credit — €2,400 in the first year after bereavement, reducing to standard single person credit thereafter
• Additional standard rate band — for the year of bereavement and the following year

How to Update Your Status with Revenue

Use Revenue myAccount to update your marital status. You can change between joint assessment, separate assessment, or single assessment at any time. It is advisable to review your position each year, as the optimal option may change with income levels.