Blog Making Tax Digital

Can You Still Use Excel for Making Tax Digital? What’s Actually Allowed

July 24, 2026 3 min read

Yes, but only if it’s connected to HMRC-recognised bridging software. A plain spreadsheet with no digital link to HMRC does not satisfy Making Tax Digital on its own. Bridging software takes the figures already in your spreadsheet and submits them directly to HMRC, without you retyping anything into a separate system.

What MTD actually requires from your records

Two rules matter here: your records need to be kept digitally, and any transfer of data between systems needs to happen through a “digital link” rather than manual re-entry. HMRC sets this out in the digital record-keeping direction for Making Tax Digital for Income Tax, and in the wider guidance on using Making Tax Digital for Income Tax. This is the part that trips people up, the spreadsheet itself isn’t the problem, it’s how the data gets from the spreadsheet to HMRC.

Where Excel falls short on its own

  • It has no built-in way to submit figures directly to HMRC
  • Copy-pasting totals between tabs or workbooks breaks the “digital link” requirement
  • Manually combining several spreadsheets (one per property, for example) voids compliance unless the combination itself is automated

How bridging software fixes this

Bridging software sits between your spreadsheet and HMRC. It reads the relevant cells directly and submits them through HMRC’s API, preserving the digital link the whole way through. You keep working in Excel exactly as before, the bridging tool only handles the submission step.

When bridging software isn’t enough

If you have more than one income source, several properties, or multiple people entering figures, the manual side of spreadsheet upkeep becomes the real risk, not the submission. Errors creep in at the point of entry, long before bridging software ever gets involved.

How does CleanBooks AI remove this risk?

CleanBooks AI removes the bridging step entirely, rather than automating around it, your bank feed, categorisation, and HMRC submission all happen inside one system, so there’s no spreadsheet left to keep a digital link to. Our guide to switching from spreadsheets walks through moving your historic records across without losing anything, and spreadsheet alternatives for MTD covers what you gain by making the switch.

Ready to leave the copy-paste behind? Switch to CleanBooks AI.

Frequently asked questions

Will HMRC reject a spreadsheet submission?
HMRC will reject submissions that don’t come through a recognised digital link, a spreadsheet emailed as an attachment or manually retyped into another system doesn’t qualify, but one submitted via bridging software does.
Do I need special software just for bridging, or is it built into full MTD platforms?
Bridging is normally a distinct, lighter-weight product from full MTD software; full platforms replace the spreadsheet entirely rather than connecting to it.
What happens if I manually retype a figure from one spreadsheet into another?
That manual step breaks the required digital link for that piece of data, even if the final HMRC submission itself goes through bridging software correctly.

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