My family has invested in rental properties over a number of years. Some properties are held in my name alone, others are owned jointly with my sister. The properties held with my sister have made losses in the last year. Can I set those losses against the profits made on letting the properties held in my own name?
Yes you can. All your UK property interests are treated as one property business. So the net income from your own properties is amalgamated with your share of income and expenses from the jointly held properties, and the total needs to be reported on the property pages of your tax return. The Taxman will not treat jointly held let properties as being a partnership, unless the letting of the property is ancillary to a proper trading business.