Accountants for UK property investors and landlords

MTD for ITSA is mandatory from 6 April 2026 for landlords and sole traders whose combined qualifying gross income exceeds £50,000, assessed on the 2024-25 tax return. The threshold falls to £30,000 from April 2027 and to £20,000 from April 2028, so many portfolio landlords will be caught by the rules within two years even if they miss the first wave.

The £50,000 threshold applies to each individual's share of gross rental turnover, not the property aggregate. Couples holding a portfolio jointly are assessed on their personal share plus any self-employment income, so one spouse may be in MTD from 2026 and the other from 2027. We check this before the tax year begins, so each person knows where they stand.

It depends on three variables: your marginal income tax rate, your gearing (loan-to-value), and your intended hold period. Higher-rate taxpayers on leveraged portfolios gain the most. Mortgage interest becomes fully deductible inside the company and Corporation Tax (19-25%, with Marginal Relief between £50k and £250k profit) is lower than 40/45% personal rates. Against that, the transfer triggers SDLT (plus the 5% additional-dwelling surcharge) and CGT unless Section 162 Incorporation Relief applies. We run the full ten-year model before you commit.

Potentially, yes, but only if the portfolio is run as a genuine business rather than a passive investment. HMRC tests activity level (hours worked, scale of the operation, business-like records), and the Ramsay v HMRC tribunal is the benchmark used in practice. Where relief is available, CGT is rolled into the base cost of the new shares rather than paid on transfer. SDLT remains payable unless the portfolio qualifies for partnership SDLT relief, which requires a pre-existing partnership structure operated for an adequate period. Both reliefs are frequently challenged; documentation and structure need to be in place well before the transfer.

From 6 April 2025, FHLs lose their separate tax regime. Three consequences: (1) mortgage interest moves onto the Section 24 basic-rate tax credit instead of full deduction; (2) gains on disposal no longer qualify for Business Asset Disposal Relief at 10%, defaulting to 18/24% residential CGT rates; (3) new capital expenditure no longer attracts plant and machinery allowances, only the reduced Replacement of Domestic Items Relief. Existing capital allowances pools transition to the new basis. Short-let owners should review pricing, structure and exit timing as a package.

CGT on UK residential property disposals is payable within 60 days of completion via the HMRC Capital Gains Tax on UK Property account. This is a standalone filing, distinct from the annual self-assessment, which still picks up the disposal at year-end. Late filing penalties start at £100 and escalate; HMRC charges interest on unpaid tax from day 61. We prepare the draft return at exchange so the payment is ready on the day sale funds land.

For a jointly held property, HMRC's default position is a 50/50 income split between spouses or civil partners regardless of actual ownership. To override this, you need to (1) hold the property in unequal beneficial shares via a Declaration of Trust, and (2) file Form 17 with HMRC within 60 days of signing that declaration, supported by evidence of the unequal ownership. Without both steps the split is invalid for the full tax year. Unmarried joint owners are taxed on actual beneficial shares without needing Form 17.

The HMRC test is whether the work restores the asset to its original state (repair, 100% deductible against rental profit) or materially improves it beyond original condition (capital, added to base cost for future CGT). Replacing a tiled roof with modern equivalent tiles is a repair; converting a loft into a bedroom is capital. Single-glazed windows replaced with double glazing is a repair, because double glazing is now the industry standard, and HMRC accepts the nature-of-the-asset test. Evidence each quotation and invoice at the time; retrofitting the classification three years later rarely survives enquiry.

No. Transferring a property from personal ownership into an SPV is a market-value disposal for CGT (deferred only if Section 162 applies) and a deemed acquisition for SDLT at the additional-dwelling rate. The SPV must also arrange new commercial mortgage finance, since existing personal buy-to-let products cannot be novated. Many landlords incorporate gradually, property by property, timing each transfer to coincide with a refinance event so the SDLT and redemption costs are absorbed into a single capital event.