Growth & Advisory

Let Property Campaign disclosures

Bring undeclared rental income up to date through HMRC's Let Property Campaign, with the lowest penalty position properly argued.

Regulated and qualified through ICAEW, ACCA and AAT memberships held across our team

What this means for your company

Bring undeclared rental income up to date through HMRC's Let Property Campaign, with the lowest penalty position properly argued. We work with technology, SaaS, e-commerce, marketplace and online businesses trading as UK limited companies, from first-year micro-entities in Croydon and Morden to funded teams in central London, with a fixed scope and fee agreed before anything starts.

01

Review of how many years are genuinely in scope

02

Notification to HMRC and the 90-day disclosure timetable

03

Rebuilt rental accounts for every year disclosed

04

Tax, interest and penalty computation with the behaviour position argued

05

Offer, payment arrangement and correspondence handled end to end

06

Clean-up so future returns are filed on time

What the service covers

Bring undeclared rental income up to date through HMRC's Let Property Campaign, with the lowest penalty position properly argued.

• Review of how many years are genuinely in scope

• Notification to HMRC and the 90-day disclosure timetable

• Rebuilt rental accounts for every year disclosed

• Tax, interest and penalty computation with the behaviour position argued

• Offer, payment arrangement and correspondence handled end to end

• Clean-up so future returns are filed on time

The rules that shape this work

The Let Property Campaign is HMRC's disclosure route for residential landlords with undeclared UK or overseas rental income. You notify first, then have 90 days to calculate and submit the disclosure and pay what is due, or agree time to pay.

How far back you must go depends on behaviour: broadly four years where reasonable care was taken, six for carelessness and up to twenty for deliberate conduct. Getting that judgement right is usually worth more than any single expense claim.

Penalties are a percentage of the tax and depend on whether the disclosure is unprompted, how the error arose and how much you help HMRC. Unprompted careless disclosures made within twelve months of the tax being due can attract nil penalties; prompted and deliberate cases rise steeply, and offshore income carries higher bands still.

Thresholds, rates and deadlines quoted here reflect the 2026/27 UK position. Check current GOV.UK guidance, or ask us, before you rely on them for your own company.

How we run it

We start by looking at the last filed accounts, your current records and your filing dates, then confirm a fixed scope and fee in writing.

Once the work is live you get reminders ahead of each deadline, a named person to ask questions, and a plain-English summary when the figures are ready, not a PDF with no explanation.

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What Our Clients Say

Rated 4.9 out of 5From 302 Google reviews
We worked with a few different accountants before finally settling with Accotax, and we're really glad we did. They take the time to understand how our business works and what our needs are. Anum, who looks after our account on a day-to-day basis, including reconciling invoices and preparing the annual accounts, is amazing, professional, efficient, and follows the processes we have put in place together. Accotax has made our accounting experience much smoother and easier. We see them as a long-term partner as our business continues to grow. I would 100% recommend them.
Mael Leboucher · Year end accounts & bookkeeping
I am very satisfied with the service provided by Muhammad Saifullah. He has been handling my tax situation in the UK with great professionalism, clarity and attention to detail. He took the time to explain every step of the process and made a complex situation much easier to understand. I felt confident and well supported throughout.
Hugo Alvarez · Personal tax position in the UK
I had a positive experience with Accotax. The work was completed promptly, my tax return was successfully filed, and I received a refund of overpaid tax. I found the cooperation efficient and helpful. Special thanks to Muhammad Saifullah for his assistance.
Sergey M · Self Assessment & tax refund
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Frequently asked

Let Property Campaign disclosures: questions directors ask

Will I go to prison for undeclared rent?

For an ordinary landlord who did not realise rental profit was taxable, no. The Let Property Campaign exists precisely to settle these cases civilly, in exchange for coming forward and being straight about the history.

How many years will HMRC want?

Four, six or up to twenty depending on whether the failure was innocent, careless or deliberate. That behavioural analysis is the single biggest driver of the final bill and it needs to be set out properly in the disclosure, not left for HMRC to assume.

What if I cannot pay it all at once?

Ask for time to pay at the point of the offer. HMRC routinely agrees instalment arrangements where the disclosure is complete and the proposal is realistic.

I have already had a letter from HMRC, is it too late?

No, but it is now a prompted disclosure, which carries higher penalty ranges. Respond quickly and get the figures right; delay makes both the penalty position and the interest worse.

What records are needed for let property campaign disclosures?

Keep bank statements, sales and platform reports, purchase invoices, payroll records, VAT workings, finance agreements and Companies House correspondence. We confirm the exact list at onboarding and identify gaps before a filing deadline becomes urgent.

How much does help with let property campaign disclosures cost?

The fee depends on transaction volume, record quality, VAT and payroll requirements, historic catch-up and the level of reporting needed. We agree a fixed scope and price before technical work starts, with published packages available on our fees page.

Can you take over let property campaign disclosures from another accountant?

Yes. We request professional clearance, collect the prior records and authorities, check the next Companies House and HMRC deadlines, and give you one clear handover list. The process is normally completed remotely.

Can let property campaign disclosures be handled online?

Yes. We work through secure cloud records, scheduled reviews and digital approvals, while keeping a named team available by phone, video call and email. Clients can also visit our Morden office by appointment.

Which accounting software works best for let property campaign disclosures?

We regularly work with Xero, QuickBooks, FreeAgent, Sage and connected sales or expense apps. The right setup depends on transaction volume, integrations and the reports you need, not simply the software brand.

What tax deadlines matter for let property campaign disclosures?

The relevant calendar may include annual accounts, Corporation Tax payment and return dates, confirmation statements, VAT returns, payroll submissions and Self Assessment. We map the dates from your company year end and registrations.

Free tools

Run the numbers before we speak

Free UK tax calculators built on 2026/27 rates for limited company directors.

Related services

What usually sits alongside this

Limited company accountants in London, Morden, Croydon and across the UK.

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Free, no obligation

Book a call

Pick a time that suits you and a qualified accountant will call you about your company, deadlines and fees.

Appointments run monday to friday, 9:00am to 5:30pm. Your confirmation is emailed straight away.

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