Can you keep your spreadsheet? MTD bridging software, explained
One of the most common worries about Making Tax Digital is having to abandon a spreadsheet that already works. You don't. Bridging softwarelets you keep your spreadsheet and simply files the figures to HMRC for you — and it's often the cheapest way to comply.
How bridging software works
A bridging tool sits between your spreadsheet and HMRC. You carry on recording income and expenses where you always have; when an update is due, the tool reads the right totals from your spreadsheet and submits them. There's no re-typing and no migrating your data into someone else's system — the spreadsheet stays the home of your records.
It's recognised, not a loophole
Bridging is a legitimate, HMRC-recognised category — not a workaround. MTD asks for two things: digital records, and a digital submission joined by an unbroken digital link. A spreadsheet plus bridging software satisfies all three. The only rule that catches people out is the digital link: data has to move from your records to your filing without being manually copied across.
Who it suits — and who it doesn't
Bridging tends to be the right call if you:
- Already keep tidy records in a spreadsheet and don't want to change how you work.
- Mainly need to file, rather than wanting bank feeds and invoicing.
- Want the lowest reasonable annual cost to stay compliant.
Full cloud accounting is the better choice if you want bookkeeping you won't outgrow, automatic bank reconciliation, or invoicing built in — features a bridging tool deliberately doesn't provide.
What it costs
Bridging is usually the cheapest route to MTD compliance, because you're paying only for the filing, not a whole accounting platform. See the cheapest MTD software overall and the tools that can be genuinely free, or run the finder to compare bridging against full accounting on the true VAT-inclusive annual cost for your situation.
When you'll need it
You need a recognised tool — bridging or otherwise — in place before your mandation date, which is phased in by income (April 2026 (£50k+), then April 2027 (£30k+), then April 2028 (£20k+)). Once you're mandated, bridging files your quarterly updates straight from the spreadsheet.
Frequently asked questions
- Can I still use a spreadsheet under MTD for Income Tax?
- Yes. Bridging software connects your spreadsheet to HMRC and submits the required figures digitally. You keep working the way you already do; the bridging tool handles the filing. It's usually the cheapest route to compliance if you're already comfortable in a spreadsheet.
- Is bridging software allowed, or just a loophole?
- It's fully allowed and HMRC-recognised. MTD requires digital records and a digital submission with an unbroken digital link between them — bridging software provides exactly that link. It isn't a workaround; it's a recognised category of software.
- What's a 'digital link'?
- It means data has to flow from your records to your submission without being manually retyped — for example a formula, an import, or the bridging tool reading your spreadsheet directly. Copying figures across by hand breaks the digital link, which is the one thing the rules don't allow.
- When should I choose full accounting instead?
- If you want bank feeds, invoicing, and bookkeeping you won't outgrow, full cloud accounting earns its higher price. Bridging is best when your records are already in good shape and you simply need to file. The finder compares both routes on true annual cost.
Keep reading
Software categories and recognition reflect HMRC's recognised-software list. This is general information, not tax advice — confirm your own position with HMRC or a qualified accountant.