Mixed Ownership Rental Split Calculator

This calculator splits the income and expenses of a jointly owned rental property between co-owners according to their ownership shares, so each can work out their taxable rental result. When a rental property is owned by more than one person, a couple, family members or business partners, the rental income and the deductible expenses must be apportioned between them in line with their ownership interest, and each owner returns their share in their own tax return. Getting the split right matters, because it determines how much taxable rental profit, or deductible loss, each owner reports, and the owners may be on different tax rates. This tool makes the apportionment simple. You enter the total rental income, the total deductible expenses, and your ownership share as a percentage, and the calculator works out the property's net rental result, your share of it, and the share belonging to the other owners. The results update as you type. Use it to divide rental income for tax, to check each owner's taxable share, or to plan ownership proportions. The property's net result is the total income minus the total expenses, and each owner's taxable share is that net result multiplied by their ownership percentage. The split follows the legal ownership interest, so a 50-50 ownership splits the result evenly, while uneven ownership splits it in proportion. A few points to keep it correct: the same percentage should apply to both income and expenses, since you cannot allocate income one way and deductions another; the ownership share is the legal interest in the property, not simply who pays the bills; and where the result is a loss, the residential rental loss-ringfencing rules may limit how each owner can use their share. This calculates the apportionment; confirm the tax treatment with an accountant.

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Net result = total income - total expenses. Your share = net result x ownership %. The same percentage applies to income and expenses. Loss ring-fencing rules may apply. Confirm with an accountant.