How to Declare Capital Gains Tax in the UK (2025-26) | Step-by-Step Guide by MTA
Do you know how to properly declare your Capital Gains Tax (CGT) to HMRC? In this comprehensive video, MTA (My Tax Accountant) explains everything UK taxpayers need to know about declaring Capital Gains Tax in the 2025-26 tax year — including who needs to declare, when to do it, and how to calculate your gain correctly to stay compliant and avoid penalties. Many UK taxpayers unintentionally make mistakes when declaring CGT, either by missing deadlines or misreporting figures. This video walks you through the entire process — from calculating your taxable gain to submitting your return accurately and efficiently. In this video, you’ll learn: • What Capital Gains Tax is and when it applies in the UK. • Which types of assets are subject to CGT — including property, shares, crypto, and valuable personal items. • The 2025-26 Capital Gains Tax rates and annual exemption (£3,000 per individual). • How to calculate your gain by subtracting allowable costs such as purchase price, legal fees, and improvements. • How to report and pay CGT to HMRC — whether you use Self Assessment or HMRC’s real-time reporting system. • The deadlines for declaring your gains depending on whether you are an individual, landlord, or investor. • How to declare CGT on UK and foreign property sales within the correct reporting window. • Common mistakes taxpayers make, such as underreporting gains, missing payment deadlines, or ignoring foreign exchange adjustments. • How HMRC cross-checks data through property transactions, investment platforms, and digital records — making accurate reporting crucial. • Reliefs and exemptions available to reduce your CGT bill, such as: Private Residence Relief (PRR) for your main home. Business Asset Disposal Relief (BADR) for eligible business owners. Spousal Transfers to make full use of allowances. • What happens if you do not declare your gains — including interest charges, penalties, and possible HMRC investigations. • How to keep accurate records to support your CGT calculations and make future declarations easier. • Why seeking help from a professional firm like MTA (My Tax Accountant) ensures your declaration is accurate, fully compliant, and optimised for tax efficiency. The 2025-26 tax year brings increased HMRC scrutiny on digital assets, overseas property, and investment transactions — making it more important than ever to get your Capital Gains Tax declaration right. This video provides you with expert knowledge, practical examples, and professional insights so you can file confidently and avoid costly mistakes. If you’ve sold an asset, property, or investment and are unsure how to declare your gains or calculate your tax, we can help. 📞 Contact MTA (My Tax Accountant) WhatsApp / Phone: 07854 255375 📧 Email: [email protected] Disclaimer: This video and description are intended for general informational purposes only and do not constitute professional tax or financial advice. Tax rules and personal circumstances vary, and you should seek independent advice before making financial decisions. Neither MTA (My Tax Accountant) nor the video creator accepts any liability for actions taken or losses incurred as a result of reliance on this information. Hashtags #CapitalGainsTaxUK #CGT2025 #UKTax2025 #DeclareCGT #TaxOnProperty #HMRC2025 #InvestmentTaxUK #TaxTipsUK #MyTaxAccountant #MTA
