Are the calculators HMRC compliant?

Our calculations are built to align with HMRC guidance and use the latest April 2026 rates. However, they're for guidance only – always verify complex cases with HMRC or a qualified professional.

Yes. We're ICO registered (ZC013807) and calculations run in your browser – we don't store sensitive payroll data unless you explicitly save it to your account.

Do you integrate with payroll software?

Reckonly tools work as standalone calculators alongside your existing software like Sage, Xero, and QuickBooks. No integration required – use our tools as a pre-check layer.

What's the VAT registration threshold?

The UK VAT registration threshold is £95,000 taxable turnover in a rolling 12-month period. You must register within 30 days of exceeding this threshold.

What are the CGT rates for 2026/27?

For 2026/27 (from 6 April 2026), CGT rates are 18% (basic rate) and 24% (higher rate) for residential property, and 10% (basic rate) and 20% (higher rate) for other assets. Business Asset Disposal Relief (BADR) rises to 18% from 14%, matching the lower residential property rate.

What is the CGT annual exempt amount for 2026/27?

The CGT annual exempt amount remains at £3,000 for individuals and £1,500 for most trusts in 2026/27. This was reduced from £6,000 in April 2024 and from £12,300 in April 2023. Each individual can use their own allowance — couples can therefore shelter £6,000 of gains between them.

What is Business Asset Disposal Relief (BADR)?

BADR (formerly Entrepreneurs' Relief) provides a reduced CGT rate on qualifying business disposals up to a lifetime limit of £1 million. For 2026/27 the rate is 18%, up from 14% in 2025/26 and 10% before that. Qualifying conditions include owning at least 5% of shares and voting rights for at least 2 years, and being an officer or employee of the company.

How do I report and pay CGT?

For UK residential property disposals, you must report and pay CGT within 60 days of completion using the HMRC CGT on UK property service. For other assets, you report gains on your Self Assessment tax return. You can also make a voluntary report at any time using the real-time CGT service. Payment is due by 31 January following the end of the tax year.

Can I offset losses against capital gains?

Yes. Capital losses must be offset against gains in the same tax year first. If losses exceed gains, the excess can be carried forward indefinitely and set against future gains. You can also carry back losses to the previous tax year in the year of death. Losses must be reported to HMRC within 4 years to be available for carry forward.

Does CGT apply when I sell my main home?

Usually no — Private Residence Relief (PRR) exempts your main home from CGT provided you have lived in it as your only or main residence throughout ownership. The final 9 months of ownership are always exempt even if you've moved out. Partial relief applies if you've let part of the property or been absent for periods not covered by the deemed occupation rules.

Updated for 2026/27

Free Capital Gains Tax Calculator 2026/27

Calculate your UK Capital Gains Tax liability in minutes. Covers residential property, shares, business assets, and BADR at the new 18% rate — updated for the April 2026 tax year.

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Understanding UK Capital Gains Tax

Capital Gains Tax (CGT) is charged on the profit when you sell or dispose of an asset that has increased in value. It applies to most assets including shares, investment properties, business assets, and personal possessions worth over £6,000 — but not your main home (which is usually exempt under Private Residence Relief) or assets held in ISAs and pensions.

The tax is charged on the gain, not the sale price. You deduct the original purchase price, allowable costs (solicitor fees, stamp duty, improvement costs), and the annual exempt amount before calculating the tax due. The rate depends on your total taxable income and the type of asset disposed of.

60-day reporting deadline. UK residential property disposals must be reported to HMRC and CGT paid within 60 days of completion. Late reporting attracts a £100 fixed penalty plus daily penalties and interest on unpaid tax.

CGT Changes for 2026/27

The headline change for 2026/27 is the increase in Business Asset Disposal Relief (BADR) from 14% to 18%, completing a two-year transition from the original 10% rate. Key points:

BADR rate rises from 14% to 18% on 6 April 2026 — the same as the basic-rate CGT on residential property.
Annual exempt amount remains frozen at £3,000 per individual (down from £12,300 just three years ago).
Residential property rates unchanged at 18% (basic rate) and 24% (higher rate).
Other asset rates unchanged at 10% (basic rate) and 20% (higher rate).
The 60-day reporting requirement for UK residential property remains in force.

How Our CGT Calculator Works

Enter your disposal details and the calculator applies the correct rates, reliefs, and allowances for the tax year. Get an instant breakdown of your CGT liability.

Multi-Year Rates

Calculate CGT for 2024/25, 2025/26, and 2026/27 with the correct rates for each year automatically applied.

Property vs Other Assets

Separate calculations for residential property (18%/24%) and other assets (10%/20%) with the right rates for each.

BADR Calculator

Calculate Business Asset Disposal Relief at the correct rate for the disposal year, tracking your £1m lifetime limit.

Annual Exempt Amount

Automatically applies the correct annual exempt amount (£3,000 for 2026/27) before calculating tax due.

Loss Offset

Factor in allowable losses from the current year and brought-forward losses to reduce your taxable gain.

Multiple Disposals

Calculate CGT across multiple asset disposals in the same tax year with correct allocation of the annual exempt amount.

Capital Gains Tax FAQs

Calculate Your Capital Gains Tax

Free for your first calculation. Paid plans include multi-year comparisons, loss tracking, PDF reports, and BADR lifetime limit monitoring.

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