Selling a Buy-to-Let With Tenants In Situ: CGT and the 60-Day Rule in 2026/27
Selling a rental property while tenants are still living there doesn't change the Capital Gains Tax calculation, but it does affect the sale process and the 60-day reporting deadline. What matters in 2026/27.
Quick answer
Whether you sell a buy-to-let with the tenants still living there or empty, the Capital Gains Tax bill is calculated exactly the same way โ the tenancy status affects your sale strategy and buyer pool, not the tax due. The one deadline that matters just as much either way is the 60-day window to report and pay CGT after completion.
Capital Gains Tax on Property Calculator
Calculate the Capital Gains Tax on a UK property sale, including Principal Private Residence relief.
CGT property calculatorThe CGT calculation doesn't change
Capital Gains Tax on a residential rental property is based on: sale proceeds, less the original purchase price, buying and selling costs (legal fees, stamp duty, estate agent fees) and qualifying capital improvements, less the annual exempt amount, taxed at the residential property rates. None of this changes based on whether tenants are in place at completion โ the calculation is identical.
The 60-day rule still applies
Since the reporting rules changed, UK residential property disposals with a CGT liability must be reported to HMRC, and any tax paid, within 60 days of completion โ a genuinely tight deadline that catches many sellers out, tenanted or not. Selling with tenants in situ doesn't extend this window, so plan for the cash-flow impact regardless of how the sale is structured.
Capital Gains Tax Calculator
Calculate Capital Gains Tax on property, shares and other assets for 2025/26.
Capital gains tax calculatorSelling below market value to the tenant
If a landlord sells directly to their sitting tenant at a discount โ a reasonably common scenario, since it avoids marketing costs and voids โ HMRC's general rule for connected-party or below-market transactions is to substitute the property's actual market value for CGT purposes, rather than using the (lower) price actually received. This can create a CGT bill based on a value higher than the cash actually received, so it needs factoring into the decision to offer a tenant a discount.
Capital Gains Tax on property guideVacant vs tenanted sale strategy
Selling vacant typically opens the sale to owner-occupier buyers, often at a higher achievable price, but means losing rental income during any void period before completion, plus the practical and sometimes costly process of ending a tenancy correctly. Selling tenanted appeals to other landlords and investors looking for an income-producing asset from day one, sometimes achieving a comparable price with less disruption โ a commercial decision entirely separate from the (unchanged) CGT position.
Bottom line
Don't expect any CGT saving or penalty from selling tenanted rather than vacant โ the tax bill is the same either way. Focus the tenancy-status decision on achievable price, buyer pool and timing, and keep the 60-day reporting deadline in mind regardless of which route you choose.
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Frequently asked questions
Does selling with tenants in situ change how Capital Gains Tax is calculated?
No โ the CGT calculation is the same regardless of whether the property is sold vacant or with sitting tenants: sale price (or market value, if sold below market to a connected party) less the original purchase price, buying and selling costs, and any qualifying capital improvements, taxed at the residential property rates after the annual exemption.
Do I still have 60 days to report and pay CGT if selling with tenants in place?
Yes โ the same 60-day deadline from completion to report the disposal and pay any Capital Gains Tax due applies regardless of the tenancy status, so plan for this cash-flow requirement whether the property completes vacant or tenanted.
Does selling to the sitting tenant themselves change anything for tax purposes?
If sold at full market value, no โ it's treated as an arm's-length sale. If sold below market value to a tenant (or any other connected or discounted arrangement), HMRC generally still uses market value for the CGT calculation, not the discounted price actually received.
Can I sell a buy-to-let with tenants in situ as an investment to another landlord?
Yes โ many investor buyers specifically look for tenanted properties with an established rental income stream, which can sometimes achieve a similar or even faster sale than marketing vacant, though the buyer pool differs from owner-occupier buyers who typically want vacant possession.
Does giving the tenant notice before selling affect the CGT position?
No โ whether or when notice is served to end a tenancy has no bearing on the CGT calculation itself, though it can affect the achievable sale price and the pool of interested buyers (vacant possession vs tenanted investment sale).
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