Digital Record-Keeping for MTD: What UK Landlords and Sole Traders Must Do

Making Tax Digital for Income Tax is fundamentally about digital record-keeping. The quarterly updates and the final declaration are important, but they are the visible output of an underlying requirement that matters far more: from your digital start date, every business transaction must be captured in functional compatible software. No more shoeboxes of receipts, no more hand-written ledgers, no more scribbled notes.

For some landlords and sole traders, this is a minor change — they have been using cloud accounting for years. For others, it is a significant shift in how they run their books. Spreadsheets alone do not meet the standard (though they can be combined with bridging software). Paper receipts alone do not meet it. A mental tally of what came in and went out definitely does not meet it.

This post covers what digital record-keeping actually requires, which records you need to keep and for how long, how existing Self Assessment record-keeping rules interact with the new MTD requirements, and the penalty for failing to comply. It also looks at the status of spreadsheets and other edge cases that tend to cause confusion.

The core digital record-keeping requirement

Under MTD IT, all business transactions must be recorded digitally in functional compatible software from your digital start date. Each record must include:

• The amount of the transaction.
• The date of the transaction (based on cash or accruals basis, depending on which you use).
• The category of the transaction.

The categories are the ones used in quarterly updates — things like "business income", "repairs and maintenance", "residential finance costs", and so on. Recording a transaction digitally means entering it into software that is officially listed on GOV.UK's "Find software compatible with MTD for Income Tax" page.

HMRC does not provide the software itself. You choose from the approved list, and the software then acts as the digital interface between your records and HMRC's systems. For UK landlords and sole traders looking for a straightforward route into MTD, tools like LedgerLet are designed with these requirements in mind.

What records does this apply to?

Every income and expense transaction that relates to your qualifying income sources must be captured digitally. For sole traders, this means every sale, every purchase, every business expense. For landlords, every rent receipt, every repair, every agent deduction, every insurance payment.

Personal transactions are outside scope — if you have a mixed personal-business bank account, you need to identify which transactions are business and record only those in your digital records.

Capital transactions (buying or selling business assets) are also recorded in the digital system, as are drawings, owner contributions, and loan movements, depending on your accounting method and how detailed your records are.

Timing of entries

Transactions must be entered into digital records by the quarterly deadline for the period they fall into. A rent receipt dated 15 May must be in your digital records by 7 August (the Q1 deadline for standard quarters, covering 6 April to 5 July).

In practice, leaving it to deadline week is a bad idea. Best practice is to record each transaction within a few days of it happening, so your records are current and you can spot problems early. Real-time bookkeeping is the standard under MTD, even if it is not strictly legally required.

Errors in digital records must be corrected "as soon as possible". The correction then flows into the next cumulative quarterly update automatically.

Are spreadsheets allowed?

This is one of the most common questions about MTD, and the answer is: yes, but with conditions.

Spreadsheets are allowed as digital records, but they cannot submit directly to HMRC. To make a quarterly update from spreadsheet-based records, you need "bridging software" — a tool that takes the spreadsheet data and transmits it to HMRC in the required format.

So the fully-compliant spreadsheet workflow is: spreadsheet for your records + bridging software for HMRC submission. Both must be in place, and there must be a "digital link" between them — the data must flow from the spreadsheet into the bridging software electronically, not by being retyped or screenshot.

For most landlords and sole traders, this spreadsheet-plus-bridging approach is more complicated than simply using cloud accounting software designed for MTD from the ground up. But for those with complex existing spreadsheet systems they want to preserve, bridging software is a legitimate route.

Retention periods for records

MTD does not change the underlying record retention periods that apply to Self Assessment. Those rules are:

Taxpayer Type	Minimum Retention
Self-employed / landlord / partnership	5 years and 10 months after end of tax year
Non-trading individuals	22 months after end of tax year
Capital assets	Until the gain/loss is reported + statutory retention period (could be decades)

So a sole trader's records for the 2026/27 tax year (ending 5 April 2027) must be kept until at least 31 January 2033. The retention periods are generous, reflecting the possibility of HMRC enquiries that may open some time after the original return.

If HMRC opens an enquiry into a return, records must be kept until the enquiry is concluded. If HMRC suspects evasion, assessments can potentially go back 20 years — so in practice, serious record-keeping discipline matters even beyond the standard retention period.

Original hard copies that must be kept

Some documents cannot be replaced by digital copies alone. For these, original hard copies must be retained:

• Dividend vouchers (if you receive dividends)
• Tax deduction certificates
• CIS certificates (for construction subcontractors)
• Foreign tax relief paperwork

For other records, digital copies (scanned images of receipts, invoices, statements) are acceptable, provided an exact copy of the original can be reproduced on request. Modern MTD-compatible software often includes receipt capture features that take care of this automatically.

Spreadsheet summaries are not enough

A trap that catches some self-employed people is believing that a spreadsheet summary of their transactions is sufficient. It is not. The spreadsheet summary might form part of your digital records (with appropriate bridging software for MTD), but the underlying source documents — receipts, invoices, bank statements — must still be retained.

HMRC's position is clear: summaries support but do not replace source documents. If there is any question about a transaction, you need to be able to produce the receipt or invoice that it came from, not just a line in a spreadsheet.

Penalty for failing to keep records

The penalty for failing to maintain records sufficient to support entries on a tax return is a maximum of £3,000 for each failure. This is a significant charge and applies in addition to any tax shortfall and related penalties that might arise from inadequate records.

Under MTD, failure to keep the required digital records can also attract a separate penalty of up to £3,000 for failure to comply with digital record-keeping requirements.

In practice, these penalties are most likely to arise in the context of an HMRC enquiry or compliance check where records are found to be missing or inadequate. Prevention is simpler than cure: keep your records properly as you go along, and you will never be in the position of needing to argue the point.

The scope of "records"

Records for MTD include:

• All sales and income records (invoices, rent receipts, sales records, letting agent statements).
• All business expense records (receipts, supplier invoices, bank statements, till rolls).
• VAT records, if you are VAT registered.
• PAYE records, if you employ people.
• Records of other personal income (for your final declaration — employment, dividends, pensions, savings interest).

For landlords specifically, records also include tenancy agreements, inventory schedules, deposit protection records, and correspondence relating to significant repairs or disputes. These are good business records anyway — and important evidence if there is ever a dispute about the nature or deductibility of a particular expense.

Separate business bank accounts

While not strictly required by law, a separate business bank account is practically essential for meaningful digital record-keeping. Mixing personal and business transactions in one account makes every bank reconciliation an exercise in disentangling, and multiplies the scope for errors in your MTD categories.

A dedicated business bank account, linked via bank feed to your MTD-compatible software, is the single most effective way to make digital record-keeping straightforward. For landlords, a separate account per property (or at least one property account overall) is similarly helpful.

Keeping records for jointly owned property

For jointly owned property, MTD has a specific easement: one co-owner can keep the main digital records, and there is no requirement for digital links between co-owners' separate systems. This removes the need for duplicate bookkeeping.

The easement applies to the digital record-keeping requirement specifically. Each co-owner still needs to include their share of the income and expenses in their own quarterly updates (if they are in MTD) — the easement just means they can do so by reference to the main records, without duplicating them.

Transition planning

If you are currently keeping paper or hybrid records and will be in MTD from April 2026, start planning the transition now. Key steps:

• Choose your software early. The list of MTD-compatible options is long, and different tools suit different business types. Landlords have different needs from sole trader service businesses, which differ again from retail businesses.
• Set up a separate business bank account if you don't already have one. This should be the single biggest productivity move in your MTD preparation.
• Enter historical records. You don't need to load years of history — just make sure your opening position is clean from your digital start date. Where historical data is useful (for example, prior-year finance costs being carried forward), get it into the software properly.
• Test the workflow. Before the first quarterly deadline, run through a full cycle — record transactions, reconcile, generate a quarterly update in draft form. Identify any gaps before they become a real problem.
• Talk to your accountant. If you use one, coordinate on software choice and workflow. Many accountants have strong preferences for particular tools that integrate with their internal systems.

Frequently Asked Questions

Q: Can I use a spreadsheet for my MTD records? A: Yes, but only in combination with bridging software that submits to HMRC in the required format. There must be a digital link (electronic data flow) between the spreadsheet and the bridging software. For most small businesses, cloud accounting software designed for MTD is simpler than the spreadsheet-plus-bridging approach.

Q: How long do I need to keep my records? A: Self-employed people, landlords, and partnerships must keep records for 5 years and 10 months after the end of the tax year they relate to. For capital assets, records may need to be kept for much longer — until the disposal is reported plus the standard retention period.

Q: Can I throw away paper receipts if I scan them? A: Generally yes, if the digital copy is a faithful reproduction of the original. But certain documents — dividend vouchers, tax deduction certificates, CIS certificates, foreign tax relief paperwork — must be retained as hard copy originals.

Q: What counts as a "digital link" for bridging software? A: Any electronic transfer of data — API feeds, linked cells, CSV imports/exports, or similar. What does NOT count as a digital link is manual re-typing or copy-paste from one system to another, which breaks the chain of automation HMRC expects.

Q: What happens if I can't keep digital records due to age, disability, or other practical barriers? A: You can apply to HMRC for an exemption from MTD IT on grounds of being "digitally excluded". If you are already exempt from MTD for VAT on digital exclusion grounds, you do not need to apply separately for MTD IT.

Conclusion

Digital record-keeping is the quiet foundation of MTD for Income Tax. It gets less attention than quarterly updates and penalties, but it is where the real operational change happens. Set up clean digital records from day one, use software designed for your business type, keep your bank accounts separate, and build a habit of recording transactions promptly. Do that well, and everything else in MTD becomes a straightforward progression. Ignore the record-keeping foundations, and the rest of MTD becomes a constant firefight.