HMRC's capital gains tax deadline · 60 days from completion

Sold a UK property?
60 days to file.
We file it for you.

Miss the 60-day HMRC deadline and penalties start at £100 from day one. Upload your completion statement, we calculate every relief, and a Chartered Accountant reviews, signs and files it for you. From £199, filed for you. Typically 1 to 3 working days, guaranteed within 5 or your money back.

Start my CGT returnEmergency late-filing service available
Chartered Accountant/Chartered Tax Advisor sign-offTypically 1 to 3 days, guaranteed within 5UK GDPR-aligned

Free UK Capital Gains Tax calculator

How much CGT will you owe on your property sale? Get a free estimate in 30 seconds. No sign-up.

UK tax residence on the date of saleIf you were non-UK resident at the date of sale, you must file a 60-day CGT return on every UK property disposal, even a loss or zero-gain sale. UK residents only file when there's tax to pay. Split year / treaty cases: the accountant decides.

Was this ever your only/main home?If the property was your main residence at any point, you may qualify for Principal Private Residence Relief, a partial or full exemption from CGT.

Your income tax bandCGT on residential property is taxed at 18% (basic rate) or 24% (higher/additional rate), depending on your total income in the tax year of disposal.

Joint ownership?If you own the property with someone else, each owner files separately and pays CGT on their own share of the gain only.

£0est. CGT

Enter your figures →

Gross gain£0
Reliefs & costs applied£0
Annual exempt amount£3,000
Taxable gain (your share)£0
Rate applied-
File your CGT return, from £199

Estimate only, not tax advice. These figures are a rough guide based on the limited details above and 2026–27 rules. They don’t account for lettings relief, deemed occupation, trust rules, or your full circumstances, and must not be relied on for filing. Always have a qualified accountant confirm the figures before you submit anything to HMRC.

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Most landlords don't even know they have a deadline.

Since April 2021, anyone who sells a UK residential property that wasn't their only or main home has just 60 days to report the gain to HMRC and pay the tax. Solicitors rarely mention it. Conveyancers don't handle it. Penalties stack fast.

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The clock starts on completion

Not exchange. Not when HMRC writes. The day the money lands. By day 61, a £100 fixed penalty hits; from month 3, £10/day fines add up to £900 more; at 6 months, a 5% surcharge (min £300) plus interest at ~7.5% on unpaid tax.

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The maths is unforgiving

Private Residence Relief, final-period exemption, lettings relief, allowable costs, spouse transfers, the £3,000 exemption. One mistake and you'll either overpay or get an enquiry letter.

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The usual options both fall short

A high-street accountant can be expensive and wants Zoom calls. The cheap apps leave you to do it yourself: you do the typing and carry the liability. There has been no third option. Until now.

Three reasons landlords pick LetsFile.

A grown-up service for a grown-up problem, at a clear price.

1

You confirm the figures, we do the work

Upload your completion statement. A chartered accountant works the figures from the documents you provide and applies the reliefs. You confirm, we do the rest, typically filed in 1 to 3 working days, guaranteed within 5.

2

Chartered Accountant/Chartered Tax Advisor signs every return

A qualified Chartered Accountant/Chartered Tax Advisor reviews and signs off your return before it's filed. Our name is on it. If HMRC ever queries it, we handle it, not you.

3

From £199. No quote, no surprise

Every price published on this page. Often cheaper than a high-street accountant, and we do the work. No "request a quote" forms. No consultation calls. Just the job done.

How it works: typically filed in 1 to 3 working days.

01

Tell us about the sale

Four short questions. Two minutes. We work out the rest.

02

Upload your docs

Completion statement, purchase docs, capital improvement invoices. Drag, drop, done.

We work the figures from your documents
03

Review the computation

Every relief explained in plain English. We show your tax bill before you pay.

Chartered Accountant/Chartered Tax Advisor signs off
04

We file with HMRC

Filed through HMRC's CGT-on-UK-Property service. You get the reference, the PDF, and a payment reminder.

One thing only you can do: HMRC requires you to authorise us as your agent inside your own Government Gateway account (separately, in their "Capital Gains Tax on UK property" service). It's a one-click acceptance once you're logged in. We walk you through the Gateway setup with screenshots inside the product. Allow a few minutes on top of the form. Short on time or stuck on HMRC ID checks? Our Emergency service (from £699) includes a one-to-one walkthrough. Call us.

How we compare.

Four ways to file a 60-day CGT return in the UK. Only one combines all four things that matter.

HMRC
Portal
High-Street
Accountant
Untied /
TaxScouts
LetsFile
PriceFreeVariesSoftware onlyfrom £199
Chartered review of your figures
Chartered Accountant/Chartered Tax Advisor sign-off
Active time required2 to 3 hoursHours of callsYou do the typingA few minutes to confirm
Turnaround timeSame day if completed*VariesVariesTyp. 1 to 3 days, guaranteed 5
Phone calls requiredYes (Zoom)None
HMRC enquiry handling includedMay cost extra90 days included

* Plenty of people start the HMRC return and get stuck. The portal asks for terms most sellers have never heard (PRR, deemed occupation, base cost adjustments), forces a separate "Capital Gains Tax on UK property" account beyond the standard Government Gateway, and has no way to save and come back later. "Same day" assumes you can finish it in one sitting. Most cannot.

Security & data protection

Built for sensitive financial data.

You're trusting us with your completion statement, bank details, and HMRC personal data. We treat that the way a chartered accountancy practice has to: encrypted in transit and at rest, and UK GDPR-aligned processing.

Encrypted in transit and at rest

TLS 1.3 in transit, AES-256 at rest. Your completion statement and bank details are encrypted from upload to filing.

UK GDPR compliant

We process only what HMRC needs for your return. Data minimisation, lawful basis documented, full Subject Access Request workflow. Never sold, never shared.

Chartered Accountant/Chartered Tax Advisor on every return

Reviewed and Emergency returns are signed by a Chartered Accountant/Chartered Tax Adviser before HMRC submission.

PCI-DSS payments via Stripe

We never see or store your card number. Stripe is PCI-DSS Level 1 certified, the highest level of payment security.

UK/EU-hosted, encrypted in transit and at rest

Servers in the EU/UK only. Documents encrypted in transit (TLS 1.3) and at rest (AES-256). Cloudflare DDoS protection on all endpoints.

Filed via HMRC's CGT-on-UK-Property service

Returns are filed through HMRC's official CGT-on-UK-Property channel (the same service used by UK accountancy firms) with our prepared computations.

Want the full data-protection details?

Our privacy notice covers data retention, third-party processors, cross-border transfers, your UK GDPR rights, and how to make a Subject Access Request.

When your sale is part of something bigger.

Most customers just need the £199 filing and they're done. But a property sale often surfaces a wider question, and getting the right answer can save your family tens of thousands. Our Chartered Accountant/Chartered Tax Advisor team can help.

Inherited property

You're selling a property you inherited.

Probate value becomes the cost basis. Done wrong, the estate pays CGT it didn't owe. Done right, future inheritance tax for your beneficiaries can be reduced by tens of thousands.

  • Probate accounts + estate return
  • Inheritance Tax planning review
  • Discretionary trust setup
See our inherited-property service →
Multi-property exit

You own three or more buy-to-lets.

Selling one is just the first decision. Should the rest be incorporated? Does Section 162 incorporation relief apply? Is a Family Investment Company the better long-term structure?

  • BTL portfolio tax review
  • Incorporation Relief (s162) assessment
  • Family Investment Company setup
See our portfolio review service →
Estate over £500k

This sale just made your estate bigger.

The proceeds sit in your estate at full value. If you do nothing, your beneficiaries pay 40% inheritance tax on every pound above the nil-rate band. There are legitimate structures that reduce this. Significantly.

  • Inheritance Tax planning
  • Lifetime gifting strategy
  • Trust planning review
See our Inheritance Tax service →

Most customers never need more than the £199 filing. But if any of the above sounds like you, the £199 return is the cheapest start to the bigger conversation. We always price advisory work up front, with no surprise bills.

The LetsFile Guarantee

Reviewed: typically filed in 1 to 3 working days, guaranteed within 5 or your money back. Emergency: filed within 3 working days, or your money back.

Clock starts once we have your completion statement and supporting documents, your HMRC agent authorisation is accepted, and your identity (AML) checks have cleared, and pauses whenever we're waiting on you. Excludes HMRC system outages. Refund means full payment returned: no quibble, no email tennis.

Frequently asked questions.

The most-asked questions. Click any to read the answer.

Service & turnaround

How quickly will my return be filed?+

Reviewed: typically within 1 to 3 working days once we have your documents, your accepted HMRC agent authorisation and your cleared identity (AML) checks. Guaranteed within 5 or your money back, and the clock pauses while we're waiting on you. Emergency service: prioritised and filed within 3 working days. Call us.

What's the guarantee?+

Typically filed in 1 to 3 working days, guaranteed within 5 or your money back. Emergency service: filed within 3 working days. The clock starts when we have three things from you: your completion statement, your supporting documents (purchase costs, improvement costs, any joint-owner details), and confirmation that you've accepted our agent invitation inside your HMRC Capital Gains Tax on UK property account. It pauses whenever we're waiting on you. From that point, if we haven't met the SLA, we refund the filing fee in full. No email tennis. Excludes HMRC system outages and statutory ID verification holds (rare, but they happen and they're not ours to control).

Will HMRC accept this? Is it official?+

Yes. We submit via HMRC's official CGT-on-UK-property service as your authorised agent. You receive an HMRC submission reference and a PDF receipt of the filed return.

Pricing & payments

Do your prices include VAT?+

The figure you see is the figure you pay. Nothing is added at checkout. LetsFile is not currently VAT registered, so no VAT is charged on our fees. If that changes, our published prices will say so clearly.

What if I owe nothing? Will you still charge me?+

No. Our calculation runs before payment. If the gain falls within reliefs and allowances and no tax is due, we'll tell you and you walk away free.

Documents & HMRC setup

What documents do I need?+

Completion statement from your solicitor for this sale, the equivalent for the original purchase, and any invoices for capital improvements (extensions, kitchens, windows; not repairs). Don't worry if some are missing; we'll tell you exactly what we still need.

Your situation

I missed the 60-day deadline. Can you still help?+

Yes. Filing late stops the daily penalty clock immediately. Choose our Emergency service: we prioritise your case, handle the penalty position, and file within 3 working days. Call us 24/7.

Security & people

Is my data safe?+

Yes. TLS 1.3 in transit, AES-256 at rest. UK GDPR-aligned: we process only what HMRC needs, never sell or share your data, and follow the ICO's lawful-basis and data-minimisation rules. Our ICO data-controller registration is being filed before the first paying client. Servers are UK/EU only. Document originals are retained for the 6-year HMRC window then permanently deleted. Card payments are handled by Stripe (PCI-DSS Level 1), so we never see your card number.

Who will review my CGT report?+

Your report will be reviewed and filed by Chartered Accountants/Chartered Tax Advisors or Chartered Accountant/Chartered Tax Advisors registered as agents with HMRC and with professional indemnity insurance, in place before our first client.

Don't let a 60-day form cost you £1,000s.

The clock started the day you completed. Penalties compound. You send us your figures and documents; a Chartered Accountant/Chartered Tax Advisor does the rest.

Get it filed - from £199

Reviewed £199 · Chartered sign-off · Typically 1 to 3 working days, guaranteed within 5 · Emergency from £699