Capital Gains Tax Buy to Let England: Rates, Letting Relief, and 60-Day Rule

Selling a buy-to-let property in England triggers Capital Gains Tax at rates that have been deliberately set higher than for other assets. The government imposes a residential property premium to discourage speculative churn and preserve housing stock for owner-occupiers. The rules changed materially in the 2024 Autumn Budget, so if you are working from pre-2024 information, the rates are different.

Current CGT Rates for Residential Property (2026/2027)

Following the October 2024 Budget, CGT on residential property disposals was unified and revised. For the 2026/2027 tax year:

• 18% for gains falling within the basic rate band
• 24% for gains falling in the higher or additional rate band

These rates apply specifically to residential property — not to commercial property or other assets (which use the lower standard CGT rates of 10% and 20%).

The applicable rate depends on your total income for the year. You add the taxable capital gain (after allowances) to your regular taxable income. Any portion of the combined total that exceeds the basic rate threshold (£37,700 above the personal allowance, i.e., above approximately £50,270 including personal allowance) is taxed at 24%.

Worked example:

An investor has a £20,000 taxable salary and makes a net capital gain of £52,600 on a BTL property sale in 2026.

1. Deduct the Annual Exempt Amount: £52,600 - £3,000 = £49,600 taxable gain.
2. The basic rate band extends to £37,700. The investor's £20,000 salary consumes £20,000, leaving £17,700 of basic rate band available.
3. First £17,700 of the gain taxed at 18% = £3,186.
4. Remaining £31,900 (£49,600 - £17,700) taxed at 24% = £7,656.
5. Total CGT: £10,842.

The Annual Exempt Amount Has Shrunk Significantly

The annual exempt amount — the tax-free allowance shielding the first portion of a gain — has been aggressively cut. It sat at £12,300 in 2022/2023. For 2026/2027, it is £3,000 per individual.

For co-owning couples, both individuals have their own £3,000 allowance. A jointly-owned property generates a combined £6,000 exempt amount, and the gain can be allocated between them (using separate income positions) to maximise use of basic rate band. This is one of the few remaining low-cost strategies available to individual landlords.

The 60-Day Reporting and Payment Deadline

This is the requirement that catches the most landlords off guard. You must:

1. Report the disposal of a UK residential property to HMRC within 60 days of the completion date.
2. Remit payment of the estimated CGT within the same 60-day window.

This is entirely separate from your Self-Assessment tax return. The report is made through a dedicated HMRC online account ("Capital Gains Tax on UK property"). You will need to estimate the gain and tax at the time of reporting, then reconcile the final figures in your year-end Self-Assessment.

Failure to meet the 60-day deadline attracts automatic financial penalties and accruing daily interest on the unpaid tax. The penalties begin at £100 for missing the deadline and escalate. There is no grace period and no informal HMRC tolerance for late filing. The 60 days start from completion, not from exchange of contracts.

Letting Relief: Now Largely Irrelevant

Letting relief was once a highly valuable CGT mitigation tool. It previously allowed landlords to shelter up to £40,000 of gain per owner (£80,000 for a couple) if the property had at some point been let as residential accommodation.

As of April 2020, letting relief was effectively abolished for standard buy-to-let operations. It can now only be claimed if the landlord was living in the property concurrently with the tenant as part of the same household — an accidental landlord situation, not a standard BTL arrangement.

For the vast majority of buy-to-let landlords, letting relief does not apply and should not be factored into disposal calculations. If you have seen guidance referring to a £40,000 letting relief allowance, it is outdated.

Principal Private Residence (PPR) Relief

PPR relief remains available if you previously occupied the property as your main home. It exempts the gain attributable to the months you lived there, plus an automatic final 9 months of ownership (regardless of whether you were living there in that period).

For landlords who converted their own home into a rental property when they moved, PPR relief can shelter a meaningful portion of the gain. The calculation is: (exempt months / total months of ownership) x total gain = exempt amount.

The final 9-month automatic relief is designed to help landlords who are trying to sell but experiencing delays. However, it only applies to properties that qualified as a main residence at some point — it cannot be applied to properties that were always buy-to-let investments.

CGT When Transferring to a Limited Company

Transferring a personally-owned property to a limited company is treated as a disposal at market value, regardless of whether any cash changes hands. This means CGT crystallises on the full gain to date, calculated at the current rates (18% or 24%).

The only relief available is Section 162 Incorporation Relief, which allows the gain to be rolled into the base cost of newly issued company shares — deferring, not eliminating, the CGT. HMRC conditions are strict: the portfolio must constitute a genuine business, which typically requires active management of at least 20 hours per week. Passive investors will not qualify.

Even with Section 162, SDLT is still payable by the acquiring company on the transfer. The combination of deferred CGT (ultimately payable when shares are sold) and immediate SDLT makes the incorporation decision primarily a long-term calculation, not a quick fix.

Strategic Mitigation Options

Hold long term. The CGT event is deferred indefinitely as long as you hold. Inflation erodes the real value of the future gain. For a 15-year time horizon, long-term capital growth often justifies the eventual CGT bill.

Use the spousal transfer. Transfers between spouses or civil partners are made on a no-gain, no-loss basis — no CGT is triggered. If you own the property solely and your spouse is a lower-rate taxpayer, transferring a share into their name before sale allows use of their lower rate band and their separate annual exemption.

Timing of disposal. If you are near a tax year boundary, completing in a year where your other income is lower reduces the probability of the gain falling in the higher rate band.

Accumulate losses. CGT losses from other asset disposals (stocks, funds, commercial property) can be offset against residential property gains in the same year. A year with significant portfolio rebalancing may create an opportunity to harvest losses for offset.

For a complete England investment framework covering SDLT on acquisition, Section 24 tax structuring, buy-to-let mortgage stress tests, and the Renters' Rights Act compliance obligations, the England Property Investment Guide covers each area with the worked examples you need to model your position before committing to a decision.

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