2026/27 tax year · your own figures · PDF + spreadsheet
Check your Capital Gains Tax, and what you may have missed, before you report it
What your report works out, at 2026/27 rates
UK property: report and pay within 60 days of completion, or you may pay interest and a penalty. Sources: GOV.UK, CGT rates; GOV.UK, report and pay on UK property.
A real report, for an example buy-to-let sale:
| Sold for £265,000: gain after costs | £64,825 |
| Taxable after £2,500 losses, £3,000 allowance | £59,325 |
| CGT at 18% / 24%, £42,000 salary | £13,741.80 |
| Report and pay by | 19 January 2027 |
It then flags what to check, in pounds. Here: spouse or civil partner ownership.
What you do: check your figures (filled in for you if you used our calculator), answer up to 8 yes/no questions, then pay and download your PDF and a costs spreadsheet.
£4.99one-off
Instant PDF + spreadsheet · you pay after checking your figures
✓ Full refundNot useful? Full refund via our contact form.
Every figure worked out from your own numbers, a personalised review of the costs, losses and reliefs people miss, and what to report and when. Before you pay HMRC, check every cost, loss and relief is in your figures.
- Every figure worked out, 18% / 24%
- Up to 8 quick checks
- Your deadline date
- Costs tracker spreadsheet
Checked against official sources (GOV.UK and HMRC) on 15 October 2026. General information, not tax advice.
Fill in or check your figures
Everything is optional except what you sold it for. We store these numbers (no name, email or address) only to produce your report after payment.
A buy-to-let sale, worked through
Bought in 2015 for £180,000 (£2,700 of buying costs), a £12,000 kitchen and bathroom, sold for £265,000 (£5,475 of selling costs) completing on 20 November 2026. Salary £42,000, £2,500 of losses brought forward, married.
| Disposal proceeds | £265,000 |
| less what was paid and allowable costs | -£200,175 |
| Gain | £64,825 |
| less losses brought forward | -£2,500 |
| less annual exempt amount | -£3,000 |
| Taxable gain | £59,325 |
| £8,270 at 18% (basic-rate band left) | £1,488.60 |
| £51,055 at 24% | £12,253.20 |
| Capital Gains Tax | £13,741.80 |
| Report and pay by 19 January 2027 | |
Every figure above is produced by the same code that writes your report.
How the report differs from our guides
| This report (£4.99) | Survival Pack (£4.99) | Tax Pack Library (£9.99) | |
|---|---|---|---|
| What it is | Every figure of your sale worked out and reviewed | A general 31-page guide to the CGT rules | All 7 of our tax guides, including the Survival Pack |
| Uses your figures | Yes: your gain, your tax, your deadline date | No: worked examples and blank worksheets | No |
| Spots possible omissions | Yes: what each missing cost, loss or relief would change, in pounds | Explains the reliefs in general | Explains the reliefs in general |
| Best for | Checking before you report and pay | Understanding the rules first | People with several tax questions |
Read about the Survival Pack or the Tax Pack Library.
Frequently asked questions
Do I have to pay to report Capital Gains Tax?
No. Reporting to HMRC is free, and our calculators are free too. The report is optional: it works through your own figures, flags what may be missing and gives your deadline date.
Will it guarantee my tax bill is right?
No. It works out the figures you enter and shows what each possible omission would change. Whether a cost or relief applies depends on facts we haven't verified, and HMRC decides.
Is it up to date?
Yes, for 2026/27. The rules were checked against GOV.UK and HMRC on 15 October 2026. The Autumn Budget is on 28 October 2026 and may change them.
What do I get?
A PDF report of your own figures for 2026/27: every figure worked out, the 18%/24% split using your income, a Check this section for every answer that may change the figures, items to investigate, an evidence checklist for your type of asset, what to report and when, and the official sources. You also get a spreadsheet to track each allowable cost and its evidence. Both download straight after payment; the links work for 30 days.
How is it different from the Survival Pack?
The Survival Pack is a general 31-page guide to the rules, the same for everyone. The report is about your sale: it works through your numbers, shows what each possible omission would change in pounds, and gives your deadline date. Many people use both.
Do I have to type my figures again?
No. If you have used one of the calculators on this site, the form is filled in from it. Check the figures, answer up to eight optional yes/no questions, and pay.
Will it tell me which reliefs I can claim?
No. It shows what each relief or missing cost would change if it applies, and what you would need to check and keep as evidence. Whether a relief applies depends on facts we have not verified.
Can I use it to report to HMRC?
It gives you the figures HMRC asks for and explains which service to use. The real-time Capital Gains Tax service asks you to attach your own calculation; the worked figures in the report can be that. You still report and pay yourself.
Is it personal tax advice?
No. It works out the figures you enter and lists questions to check. For complex disposals, business sales or anything high value, speak to a qualified tax adviser.
What if it isn't useful?
Use our contact page and we'll refund you in full.
Not tax advice: the report works out the figures you enter and lists questions to check. It is general information, not personal tax advice, and it never says you are entitled to a relief. Rules checked against GOV.UK and HMRC on 15 October 2026; the Autumn Budget on 28 October 2026 may change them.