Help centre

Frequently asked questions

Everything you need to know about the 60-day CGT return, our pricing, and what happens after we file.

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.

What if HMRC opens an enquiry?

On Reviewed and Emergency tiers, we handle the enquiry response free for 90 days.

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.

Do I need a Government Gateway account?

Yes. HMRC's rules mean only you can authorise us to file on your behalf. We can't shortcut that. You'll need a personal Government Gateway login and a "Capital Gains Tax on UK property" account inside it (we walk you through both, with screenshots, inside the product). Once that's set up, you accept our agent invitation with one click and we take over from there. Allow a few minutes for this step; longer if HMRC has to verify your identity from scratch. If you can't get past HMRC identity checks, our Emergency service (from £699) includes a one-to-one walkthrough. Call us.

What do I have to sign before you start?

Two things, both online: a short identity check (photo ID + selfie, takes 2 minutes; required by anti-money-laundering rules for all UK tax agents), and an engagement letter that sets out exactly what we're doing, what it costs, our complaints procedure, and the limits of our liability. Both are e-signed at checkout. You get a copy by email and can come back to it any time.

Your situation

What if it was jointly owned?

We handle joint ownership, including spouse transfers, tenants-in-common percentages, and unequal beneficial interests. Each owner needs their own return; joint filings get a 30% discount.

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.

What if I sold the property at a loss?

If your CGT calculation results in a loss, there is usually no tax to pay and no mandatory 60-day return to file (for UK residents). However, registering the loss with HMRC is worthwhile because capital losses can be carried forward indefinitely and offset against future gains. We can run the numbers and confirm whether a return is needed in your case. Our pre-payment check is free.

The property was my main home at some point. Does that help?

Yes. Private Residence Relief (PRR) can reduce or eliminate the gain for the period it was your main home. The calculation depends on when you lived there, the length of ownership, and certain deemed occupation rules (for example, the last 9 months of ownership always count as main-home use even if you had already moved out). PRR is one of the most valuable reliefs available and we apply it automatically in our calculation.

What if the property was inherited?

The base cost for an inherited property is the probate value (the value agreed with HMRC at the date of death), not what the deceased originally paid. If the property has risen in value since probate, CGT is due on that rise when you sell. The 60-day filing rule applies exactly as it does for any other disposal. We handle inherited and probate-estate sales regularly and will ask for the grant of probate and estate valuation.

Can I amend the return if I made a mistake?

Yes. A 60-day CGT return can be amended within 12 months of the 31 January following the end of the tax year in which the disposal took place. If we filed the return for you and a correction is needed within 90 days of filing, the amendment is included in our service fee at no extra charge.

Is this just for residential property, or do you cover commercial property and shares too?

LetsFile specialises in the 60-day UK residential property return, the mandatory filing HMRC requires within 60 days of a residential disposal. Commercial property, shares, cryptocurrency, and other assets do not fall under the 60-day rule; those gains are reported on the annual Self-Assessment return instead. We do offer an SA100 preparation service as an add-on. Ask us at checkout.

Security & people

Who's the Chartered Accountant/Chartered Tax Advisor?

Our reviews are signed by a Chartered Accountant/Chartered Tax Adviser. The reviewer's name appears on every return we file.

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.

How do you stop other people seeing my account?

We use passwordless magic-link login: a one-time link emailed to the address you paid with. The link is single-use, expires shortly after it is sent, and stored as a SHA-256 hash so even we can't read it from the database. Once signed in, every API request is scoped to your customer ID server-side. There is no way to see another customer's data even if a URL were guessed. Identity verification (SmartSearch) runs before any return is filed, matching your identity to the name on the HMRC submission.

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.

Still have a question?

If your question is not answered above, send us a message. For complex CGT situations (inherited property, large gains, multiple properties, incorporation), you can book a short advisory call instead.