Making Tax Digital does not just change how you file; it changes how you record. Here is what counts as a digital record, and where ordinary spreadsheets fall short.
The headline change in Making Tax Digital is the quarterly filing, but the quieter, more demanding change is the record-keeping rule underneath it. HMRC is not just asking when you file; it is dictating how you store every transaction in between. A shoebox of receipts and a year-end spreadsheet, the way millions of sole traders have always worked, will no longer meet the legal standard.
A digital record is not simply a photo of a receipt or a PDF invoice sitting in a folder. HMRC defines it as a structured electronic record of each business transaction, held in software that can read, total and submit it. For each transaction you generally need to capture the amount, the date, and the category (the type of income or expense). The software then maintains a running digital ledger from which quarterly updates are generated automatically.
You can still keep your physical receipts and invoices as supporting evidence, and HMRC recommends you do. But the working record, the thing your tax figures are built from, must live in compatible software. Check whether and when this applies to you with the MTD check.
The single most misunderstood part of MTD record-keeping is the "digital link" requirement. HMRC's rule is that once data is in a digital record, it must move to the point of submission electronically, without being manually copied or re-typed at any stage.
In practice this rules out the classic approach of keeping a spreadsheet and then typing the totals into HMRC's portal by hand. If you want to keep using a spreadsheet, it must be connected to HMRC through bridging software that pulls the figures across automatically via a digital link. The chain from transaction to submission has to be unbroken and digital.
This is why a spreadsheet "alone" fails the test even though spreadsheets can store data perfectly well. It is the manual re-keying, not the spreadsheet itself, that HMRC objects to. For the bigger picture of what the whole regime requires, see our overview of Making Tax Digital.
Consider Sarah, a self-employed mobile hairdresser preparing for MTD from April 2026 because her income exceeds £50,000. Here is how her record-keeping changes for a single week.
| Transaction | Old way | Digital records way |
|---|---|---|
| £45 cash haircut | Noted in a paper diary | Logged in app, dated, categorised as income |
| £120 supplies | Receipt kept in a drawer | Receipt photographed and the £120 recorded as an expense |
| £30 fuel | Added up at year-end | Captured at the time, categorised as travel |
| Quarterly total | Typed into a spreadsheet manually | Totalled automatically by the software |
| Submission | Re-typed into HMRC portal | Sent via digital link, no re-typing |
The difference is not the amount of information, it is the flow. Every figure is captured once, electronically, and carried through to HMRC without a human re-entering it. That removes a major source of error and is exactly what the digital links rule is designed to enforce. Our blog walks through setting this up step by step.
Keeping digital records is framed as a legal obligation, but the practical upside is real. Because every transaction is captured as it happens, your income and expense position is always current rather than reconstructed in a panic each January. You see your tax liability building through the year, you spot missing receipts while they are still findable, and the quarterly updates become a near-automatic by-product of records you are keeping anyway. The compliance burden and the cash-flow benefit, unusually, point in the same direction.
Digital records are less about new paperwork and more about capturing the paperwork once, electronically, so nothing has to be re-typed later.
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