How is rental income from jointly owned property taxed in the UK?

Full answer

The tax treatment of rental income from jointly owned property depends on the relationship between co-owners. Unmarried joint owners (including cohabiting couples, friends, or business partners): each owner is taxed on their share of the rental income according to their actual beneficial ownership. If A owns 70% and B owns 30%, they each declare and pay tax on 70% and 30% of the net rental income respectively. Married couples and civil partners: HMRC's default rule (Income Tax Act 2007 s836) treats income from jointly owned property as arising 50:50, regardless of the actual ownership split. This is overridden only by making a formal declaration (Form 17 election) to HMRC within 60 days of the change in ownership. Form 17 requirements: you must have actually changed the beneficial ownership shares -- you cannot simply declare a different split while retaining equal shares. The unequal ownership must be evidenced by a Declaration of Trust (a legal document signed by both parties). Once Form 17 is submitted and accepted, the income split for the new shares applies from the date of the declaration. Common planning use: if one spouse is a higher-rate taxpayer and the other is a basic-rate taxpayer (or has unused Personal Allowance), transferring more of the beneficial interest to the lower-rate partner can reduce the overall tax bill. This involves using a Deed of Gift (no SDLT between spouses) and Form 17. HMRC scrutinises these arrangements if they appear purely tax-motivated without genuine transfer of economic interest. Jointly owned property and CGT: the CGT treatment on disposal also follows actual beneficial ownership. Each owner has their own £3,000 AEA for 2026/27. HMRC guidance: PIM1030.

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