Rental Ring-Fencing Transition Calculator

Since the 2019-20 tax year, section EL 20 of the Income Tax Act 2007 prevents residential rental losses from offsetting your salary, wages, or other income. Losses are 'ring-fenced' — they can only offset future residential rental income, and they carry forward indefinitely. This means if you run a negatively geared rental, you do NOT get a tax refund on your PAYE that year; you bank the loss for later.

The Taxation (Annual Rates for 2024-25) Act 2024 phased interest deductibility back in: 80% for 2024-25 and 100% from 2025-26 onwards. Before the rollback, the schedule was: 2021-22 pre-1-Oct 100% / post-1-Oct 75%, 2022-23 75%, 2023-24 50%. New builds (Code of Compliance Certificate issued after 27 March 2020) kept 100% deductibility throughout the entire period.

Now that interest is fully deductible from 2025-26, your rental's tax position improves materially — properties that ran tax-losses in 2023-24 may become taxable from 2025-26. Once net rental turns positive, ring-fenced losses offset that income dollar-for-dollar until the carry-forward balance hits zero. The year that happens depends on your rent, interest rate, opex, and opening loss balance. Our projection shows the exact year and the running balance.

Yes, but only if the sale triggers the bright-line test (or another income-sale provision). Ring-fenced losses can be deducted against the taxable gain in the year you sell. If you sell outside the bright-line period (no tax on gain) and exit residential rental, the losses do not transfer — they are extinguished. This is the 'escape valve' pre-2019 reform didn't have.

There is no dollar-threshold exclusion for ring-fencing. Every dollar of residential rental loss is ring-fenced. (You may be thinking of the trading-stock or minor-expense rules in other parts of the Income Tax Act.) The exceptions are: mixed-use holiday homes under s DG, properties held on revenue account (e.g., dealers), and new builds remain subject to ring-fencing despite 100% interest deductibility.

Yes. Complete the IR3R rental schedule each year and carry the closing loss forward. IRD keeps a running tally, but you are responsible for the figures. If you own multiple rentals you can choose to pool them (treat all as a single ring-fence) or apply the rules property-by-property — pooling is generally advantageous because a strong property's income can offset a weak one's loss.