Voluntary Landlord Disclosure: The Penalty Bands, and How To Lower Them

That’s the number most landlords are afraid of before they know it. In our casework at Total Books the fear is nearly always larger than the figure, because people imagine the penalty attaching to the rent rather than to the tax. On a year where the rent was 9,000 pounds and the tax due was 1,800, a 20 per cent penalty is 360 pounds, not 1,800.

Most people who call us have never told HMRC about the rent at all, have put off dealing with it for years, and are working from a shoebox of bank statements and whatever the managing agent still has on file. That’s the ordinary starting position, not the difficult one.

The rest of this page shows you which band you are in, what moves you within it, and the one thing that decides whether you keep the best column available to you.

Key takeaways

Which penalty regime applies to you

Before you can read a band you have to know which table you’re on, and it’s the first thing Total Books establishes, and this is the fork almost every article on this subject skips.

If you never registered for Self Assessment, never had a UTR and never told HMRC you had rental income at all, you’re in the failure to notify regime under Schedule 41 of the Finance Act 2008. The obligation you missed is the duty to give notice of liability under section 7 of the Taxes Management Act 1970.

If you were already filing the return each year and the rental income was left off it, or understated on it, you’re in the inaccuracy regime under Schedule 24 of the Finance Act 2007.

Plenty of landlords are in both. A landlord who bought a flat in 2014, never mentioned it, then registered for Self Assessment in 2021 for something else and still left the rent off, has failure to notify years and inaccuracy years in the same disclosure. That’s normal and it isn’t a problem. It simply means two tables, applied year by year, which is how Total Books builds every disclosure pack.

Floor rises to 20%

One letter moves a non-deliberate case from the unprompted column to the prompted one.

The failure to notify bands

These are the bands that apply where you never told HMRC. There is a second variable here that does not exist in the other regime: whether the failure was put right within 12 months of the date the tax was due.

Source: HMRC Compliance Handbook CH73200 and factsheet CC/FS11.

Almost nobody reading this is in the 12-month column. By the time a landlord starts searching for answers the rent has usually been undeclared for years, so the honest starting point for most non-deliberate cases is 10 to 30 per cent, not zero to 30. Total Books works on that assumption until the year by year schedule proves otherwise.

The inaccuracy bands

These apply where a return was filed and the rent was missing or wrong.

Source: HMRC Compliance Handbook CH82470.

The two tables are close but not identical, and Total Books applies both inside one disclosure where the years call for it. A careless prompted disclosure has a floor of 15 per cent under the inaccuracy rules and 20 per cent under the failure to notify rules. On a large disclosure that gap is real money, and it is one of the reasons the year by year split matters.

Unprompted and prompted, the column you can still control

The same behaviour sits in two different columns depending on one thing, and that thing is timing. Unprompted means you came forward when you had no reason to believe HMRC had discovered the problem or was about to. Prompted means you came forward after that point.

The test is objective. It rests on the facts, not on what you personally believed. A landlord who received a letter about rental income in March and notified HMRC in April is prompted, whatever their state of mind.

This is the part of the penalty that’s still in your hands today, and it’s the reason Total Books tells landlords to move before a brown envelope or a nudge letter arrives rather than after. On a deliberate case the difference between the unprompted and prompted floor is 15 percentage points of the tax. On a non-deliberate case it’s 10.

Does using the campaign make my disclosure prompted?

No. HMRC’s own manual settles this: a national campaign highlighting an activity or a liability that HMRC is concentrating on does not stop a disclosure from being unprompted.

This matters because the worry gets repeated on landlord forums, and it’s backwards. Coming forward through the Let Property Campaign is what keeps you unprompted. Waiting until HMRC writes to you is what loses it.

What the behaviours actually mean

HMRC does not define non-deliberate by how sorry you are, whatever landlords expect when they first ring Total Books. It defines careless as a failure to take reasonable care, and reasonable care as the behaviour of a prudent and reasonable person in your position.

The phrase “in your position” is doing real work. HMRC’s guidance is explicit that a person with simple, straightforward tax affairs needs only a simple system, provided they follow it carefully. A landlord with one flat is not held to the standard of a portfolio investor with an in-house bookkeeper.

Deliberate means you gave HMRC a document you knew contained an inaccuracy. HMRC does not need to show you knew the right figure, only that you knew the figure you gave was wrong. Deliberate and concealed adds active steps to hide it: false invoices, backdated agreements, rent routed through an account you did not disclose.

Most landlords Total Books acts for are non-deliberate. They were disorganised, or they did not think of themselves as a landlord, or the property was inherited and the paperwork never caught up. Some had a single tenant for a decade, a managing agent who sent statements to an old address, and a void period nobody accounted for. That isn’t the same as dishonesty and HMRC treats it differently.

Why your penalty will probably not be zero

Here is the position we will defend, and it is not the one the market advertises.

GOV.UK does say that if you come forward under this campaign you will earn the maximum reduction of any relevant penalties for the quality of your disclosure. Firms quote that sentence and stop. The same page carries the limit two lines later: in specific circumstances it may not be appropriate to allow the full reductions, and if you have taken a significant period to correct your non-compliance, you cannot expect HMRC to agree a full reduction.

HMRC treats a significant period as more than three years. Where the delay is significant, the penalty is set more than 10 percentage points above the minimum of the statutory range.

So a non-deliberate, unprompted landlord who has been undeclared for eight years should plan on something in the region of 20 per cent, not zero. We would rather tell you that at the start than have you open an acceptance letter expecting nothing.

That’s where Total Books draws the line. We do not quote a penalty outcome we cannot control, and we do not repeat the zero figure other firms advertise. Talk to a person, not a chatbot, and you’ll get the range rather than the headline.

How the percentage is actually worked out

The reduction for the quality of your disclosure does not come off the penalty. It moves you through the range between the maximum and the minimum, and this is the single most misunderstood mechanic in the subject.

HMRC scores three things: telling, worth 30 per cent, helping, worth 40 per cent, and giving access to records, worth 30 per cent. The total becomes the percentage of the range you move.

Take HMRC’s own worked example. A deliberate, unprompted disclosure has a range of 70 per cent down to 20 per cent, so there are 50 percentage points of movement available. The quality of disclosure is assessed at 65 per cent. Sixty five per cent of 50 is 32.5. The penalty is 70 minus 32.5, which is 37.5 per cent of the tax.

The mechanic is covered properly in our guide to reducing a disclosure penalty, because what counts as good helping is where most of the available ground is won or lost.

Year by year

Let Property Campaign service

A year by year schedule, built before a figure reaches HMRC

We work out the tax for each year first, then the band, then the interest. You see the whole position before anything is submitted.

See the disclosure service

What the bands are calculated from

The percentages above mean nothing until there is a figure to apply them to, and that figure comes out of your own paperwork.

For each year we need the rent received and the allowable expenses. In practice that means the letting agent statement or the rent book, the bank statement showing what actually landed, the mortgage interest certificate, the tenancy agreement for the dates, and the deposit scheme record where a tenant moved in or out mid-year. A void period matters too, because a month with no tenant is a month with no rent and it changes the year.

Landlords with a portfolio have this several times over. A landlord with one buy to let usually has it once, and usually has more of it than they think. Where the records are missing for the early years, HMRC accepts a reasoned estimate, so a gap in the paperwork is not a reason to delay.

Total Books builds this as a year by year schedule before any figure goes near HMRC, because a total HMRC cannot check is a total HMRC will question.

Interest, which is not a penalty

The penalty is not the whole bill. HMRC charges interest from the date each year’s tax was due until the date it is actually paid, worked out daily.

On an eight year disclosure the earliest year carries roughly eight years of interest, and on older disclosures the interest can exceed the penalty. Interest has been running the whole time, whether or not anyone was counting it. The current late payment rate is 7.75 per cent, set at the Bank of England base rate plus 4 per cent. That rate moves, so check it on the day you calculate.

Two practical points. You have to calculate the interest yourself and include it, because a disclosure submitted without it is rejected as incomplete. And HMRC does not charge interest on the penalty itself unless you pay the penalty late.

What happens if HMRC finds you first

The bands above are the terms Total Books can work with for a landlord who comes forward. They are not the terms available afterwards.

If HMRC opens a check before you notify, your disclosure moves into the prompted column and the floor rises. If HMRC later finds the disclosure was materially incorrect, the published position is that significantly higher penalties follow. And where the tax at stake is serious, HMRC has been clear that it cannot offer immunity from prosecution.

Total Books would rather have this conversation at the first free 15 minute call than after an assessment lands. There is also the deliberate defaulters list. Where a penalty is charged for deliberate behaviour and the tax exceeds the published threshold, HMRC can publish the taxpayer’s details. Coming forward and being assessed as non-deliberate keeps you out of that entirely.

Two situations, worked through

A landlord let a one bedroom flat from 2017 while working full time. She assumed PAYE covered everything and never registered, so she had no UTR and no Self Assessment record at all. Rent averaged 8,400 a year, the letting agent statement showed expenses running at about a third, and the tax came out at roughly 1,100 a year. She came forward before any contact from HMRC. The disclosure ran across the failure to notify bands, non-deliberate and unprompted, and the penalty was applied at around a fifth of the tax rather than at the 30 per cent maximum.

A second landlord had been filing the return for a small trade for years and left the rent off each one. That’s the inaccuracy table, not the failure to notify table, and a return filed with income missing is a harder conversation than one never filed at all. He notified before a nudge letter arrived and stayed in the unprompted column, which on his figures was worth more than the entire fee for the work.

Both figures are illustrative and modest. Your position turns on your own years, your own behaviour, and when you move.

Frequently asked questions

About Total Books

Total Books is an AAT licensed practice and an HMRC registered tax agent, acting for landlords, directors and small businesses across Cardiff, Newport and Bristol. We are also a Companies House authorised agent and a Xero Certified Advisor, and we hold an HMRC Agent Services Account for ongoing Self Assessment work. Records come to us through a secure client portal rather than by email, and every disclosure starts with the same free 15 minute call.

Where to go next

If you have not yet notified HMRC, the order of events is the thing that decides your column. Read our step by step guide to the disclosure, or if a letter has already arrived, start with prompted and voluntary disclosure.

If you’d rather not work it out alone, bring us the years and whatever bank statements survive, and Total Books will tell you which bands apply before anything is submitted. Everything goes through our secure client portal, so nothing sensitive travels by email. Book the free 15 minute call with Total Books and we’ll start with the position you’re actually in. Talk to our Let Property Campaign team

Total Books is an AAT licensed practice and an HMRC registered tax agent, acting for landlords across Cardiff, Newport and Bristol.