Capital Gains Tax UK —
Every Relief Identified, Every Report Filed
Expert CGT planning and reporting for property sales, share disposals and business asset sales. We identify every available relief — Private Residence Relief, Business Asset Disposal Relief, EIS deferral — to legally minimise your CGT bill. 60-day residential property reports filed on time.
Capital Gains Tax UK — What You Need to Know
Capital Gains Tax (CGT) is charged on the profit (gain) you make when you sell or dispose of an asset that has increased in value. The key word is profit — CGT is not charged on the full sale proceeds, only the gain above your original cost (plus allowable costs of acquisition and disposal).
CGT applies to gains on UK residential property, commercial property, shares and securities, business assets, cryptocurrency, personal possessions above £6,000 and most other capital assets. Your main home is generally exempt under Private Residence Relief — but there are complex rules around periods of non-residence, letting and development that can reduce or eliminate the exemption.
The CGT annual exempt amount is £3,000 in 2024/25 — reduced from £12,300 in 2022/23 as part of a phased reduction. With the allowance now at its lowest in decades, careful CGT planning — timing disposals, using your spouse’s allowance, utilising losses — is more valuable than ever.
For UK residential property sales, HMRC introduced a 60-day reporting and payment requirement from April 2020. Within 60 days of completion, you must file a CGT return and pay any CGT owed — regardless of whether your annual Self Assessment has been filed. Missing this deadline triggers automatic penalties.
✅ What’s Included
- ✓ CGT computation — all asset types
- ✓ Allowable costs identified & claimed
- ✓ Annual exempt amount applied
- ✓ Prior year losses utilised
- ✓ Private Residence Relief calculation
- ✓ Letting Relief (where applicable)
- ✓ BADR assessment & claim
- ✓ EIS/SEIS deferral relief
- ✓ Rollover & holdover relief
- ✓ 60-day residential property return
- ✓ CGT payment calculation
- ✓ Self Assessment CGT pages
Capital Gains Tax — Current Rates & Allowances
4 CGT Mistakes That Cost UK Taxpayers Thousands
Since April 2020, UK residents selling UK residential property must file a CGT return and pay any CGT owed within 60 days of completion. Many property sellers are unaware of this requirement and only discover it when preparing their annual Self Assessment return — by which time they are already in default, with automatic penalties of £100 per return and interest on the unpaid tax. We file 60-day returns within days of receiving completion details.
Many CGT computations understate allowable costs — reducing the gain incorrectly. Allowable costs include the original purchase price, stamp duty, legal fees on purchase and sale, estate agent fees, costs of improvement (not maintenance), and certain capital expenditure that enhances the asset. For properties held for many years, these costs can significantly reduce the chargeable gain. We identify every allowable cost systematically.
Married couples and civil partners can transfer assets between themselves at no gain/no loss — effectively allowing both annual exempt amounts to be used against a single gain. For 2024/25, this doubles the exemption to £6,000. We advise on timing asset transfers between spouses to maximise the combined exemption before any disposal, where this is commercially appropriate.
Business Asset Disposal Relief (BADR, formerly Entrepreneurs’ Relief) reduces the CGT rate on qualifying business disposals to 10% — versus 20% for other assets. Many business owners are unaware they qualify or fail to meet the qualifying conditions (minimum 5% shareholding, 2-year holding period, officer or employee). We assess BADR eligibility for every business disposal and ensure the claim is correctly made, saving clients tens of thousands of pounds.
Capital Gains Tax — Common Questions
Generally no — your main residence is exempt from CGT under Private Residence Relief (PRR). However, PRR does not apply to the full gain if you have let the property, used part of it exclusively for business, owned a garden above half a hectare, or have not lived there for the entire period of ownership. Periods of non-residence after April 2020 are also fully chargeable. We calculate PRR accurately, including the final 9-month exemption period that applies regardless of residence.
You have 60 days from the date of completion to file a CGT return and pay any CGT owed to HMRC on UK residential property sales. This is separate from your annual Self Assessment return. The CGT reported via the 60-day return is then included in your Self Assessment return for that tax year, with any overpayment refunded or underpayment collected at that point. We file 60-day returns as a priority service with same-week turnaround available.
Yes — capital losses in the current tax year must be offset against capital gains in the same year before applying the annual exempt amount. If losses exceed gains, the remaining losses are carried forward to offset future gains. Losses from previous years are carried forward and used to reduce taxable gains in later years (after the annual exempt amount). We track all capital losses for clients and apply them optimally to minimise CGT across multiple years.
BADR reduces CGT to 10% on gains up to a lifetime limit of £1 million on qualifying business disposals. To qualify, you must be selling all or part of a trading business, shares in a personal company, or assets used in a business you’re closing — and you must have held the qualifying interest for at least 2 years ending on the date of disposal, held at least 5% of shares and voting rights, and been an officer or employee of the company throughout. We assess BADR eligibility carefully and structure disposals to maximise the relief.
Yes — HMRC treats cryptocurrency as a capital asset, not currency. Any disposal of cryptocurrency — selling for fiat currency, exchanging one crypto for another, using crypto to purchase goods or services or gifting crypto (except to a spouse) — is a CGT disposal. The gain or loss is calculated using the pooling rules (section 104 pool) for same-day and 30-day matching. We prepare cryptocurrency CGT computations and ensure all disposals are correctly reported in your Self Assessment return.
Every Relief Claimed — Every Return Filed On Time
Book a free consultation before you dispose of any asset. Early planning can save thousands — once the asset is sold, some planning options close forever.
Is This Service Right for You?
Buy-to-Let & Investment Property Sellers
Anyone selling a buy-to-let or investment property must file a 60-day CGT return and pay any CGT owed within 60 days of completion. We file these as a priority service — often within 48 hours of receiving completion details.
Investors Selling Shares or Funds
UK residents selling shares, unit trusts or investment funds with gains above the £3,000 annual exempt amount must report via Self Assessment. We prepare full share disposal computations including Section 104 pooling and 30-day matching rules.
Business Owners Selling or Closing
Disposing of a business or business assets can generate significant CGT — but Business Asset Disposal Relief at 10% may apply to qualifying disposals. We assess BADR eligibility and structure the disposal to maximise the relief before completion.
Cryptocurrency Holders
Every cryptocurrency disposal — sale, exchange, gift or payment for goods — is a CGT event. With HMRC now receiving data from UK exchanges, unreported crypto gains are increasingly being identified. We prepare full crypto CGT computations and ensure all disposals are correctly reported.
Fixed Fees — Agreed Upfront
All Britvex tax fees are fixed and agreed before we start. No hourly rates. Book a free consultation for your exact quote.
All packages include: HMRC agent · dedicated accountant · client portal · 2-hour response guarantee.
The Law That Applies to You
Taxation of Chargeable Gains Act 1992 (TCGA 1992) — the primary CGT legislation. Defines chargeable assets, chargeable persons, disposal events, computation rules (including the Section 104 pool for shares, part disposal rules and the valuation of assets). All CGT reliefs — PRR, BADR, rollover, holdover, EIS deferral — have their statutory basis in TCGA 1992.
Finance Act 2019 — 30-day (now 60-day) reporting — introduced the requirement to file a CGT return and pay CGT on UK residential property disposals within 30 days of completion (extended to 60 days from October 2021). The regime applies to UK residents disposing of UK residential property and non-UK residents disposing of all UK property.
Budget 2024 — CGT rate changes — the October 2024 Budget increased residential property CGT rates from 18%/28% to 18%/24% (basic/higher rate), effective immediately. BADR lifetime limit remains £1 million but the BADR rate will increase from 10% to 14% in April 2025 and 18% in April 2026. We model the impact of upcoming rate changes for clients planning disposals.
📋 CGT Rates 2024/25
- £3,000 Annual exempt amount per person
- 18% Residential property — basic rate taxpayer
- 24% Residential property — higher rate taxpayer
- 10% Other assets — basic rate taxpayer
- 20% Other assets — higher rate taxpayer
- 10% BADR rate (rising to 14% Apr 2025)
- 60 days Deadline for residential property return