MTD-Compatible Software: What UK Businesses Need for VAT Compliance
Tax & Compliance Series
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What Makes Software MTD-Compatible?
Making Tax Digital (MTD) requires all VAT-registered UK businesses to use software that meets specific HMRC requirements. But not all "cloud accounting" tools are MTD-compatible.
Making Tax Digital (MTD) requires all VAT-registered UK businesses to use software that meets specific HMRC requirements. But not all "cloud accounting" tools are MTD-compatible. Here's what you need to know.
HMRC's Technical Requirements
To qualify as MTD-compatible, software must:
To qualify as MTD-compatible, software must:
- Keep digital records — store VAT records electronically (sales, purchases, VAT calculations)
- Preserve digital links — transfer data between parts of your system without manual re-keying
- Submit VAT returns via API — connect directly to HMRC's systems to file returns
- Receive information from HMRC — pull VAT obligations and confirmation of submissions
Spreadsheets can be used for record-keeping, but only if they're linked to MTD-compatible bridging software that handles the API submission. Standalone spreadsheets are not sufficient.
Features to Look For
Beyond basic MTD compatibility, effective invoicing software for UK businesses should include:
Beyond basic MTD compatibility, effective invoicing software for UK businesses should include:
- UK VAT rate defaults — 20% standard, 5% reduced, 0% zero-rated automatically applied
- Flat Rate Scheme support — if you use the FRS, the software should handle the different calculation method
- CIS reverse charge — construction industry businesses need invoices that comply with the domestic reverse charge
- Multi-currency with GBP base — if you invoice international clients, the software should handle exchange rates and report in GBP
- Sequential invoice numbering — HMRC requires unique, sequential numbers
- VAT return preparation — auto-calculate Box 1–9 figures from your transaction data
- Audit trail — HMRC can request 6 years of records, so your software must maintain a complete history
Which Type of MTD Software Is Right for You?
There are three broad categories of MTD-compatible software: bridging software, full accounting suites, and invoicing-first tools that pair with a bridging tool for VAT submission. Each suits a different type of business.
There are three broad categories of MTD-compatible software: bridging software, full accounting suites, and invoicing-first tools that pair with a bridging tool for VAT submission. Each suits a different type of business.
| Software type | Best for | Pros | Cons |
|---|---|---|---|
| Bridging software (spreadsheet + API bridge) | Businesses that already rely on spreadsheets and just need the digital link to HMRC | Low cost; keeps existing spreadsheet workflow; quick to set up | No invoicing features; still requires disciplined digital record-keeping; limited audit trail |
| Full cloud accounting suite | Businesses that want bookkeeping, VAT returns, payroll and invoicing in one system | End-to-end record keeping; automatic VAT return calculation; strong audit trail | Higher monthly cost; can be more than a sole trader needs; learning curve |
| Invoicing-first tool + bridging add-on | Freelancers and small businesses whose main need is professional, compliant invoices | Fast invoice creation with correct VAT fields; affordable; easy for clients to understand | Usually needs a separate MTD bridging tool for the VAT return itself |
MTD Software Checklist Before You Buy
Before committing to any tool, confirm it appears on HMRC's list of recognised MTD software, supports digital links end to end, and covers the UK VAT rates and schemes your business actually uses.
- Check HMRC's recognised software list — search the product name on GOV.UK before signing up
- Confirm API submission, not just record-keeping — some tools only store data and still require manual copy-paste into a bridge
- Test the digital link — ask the vendor to demonstrate data flowing from invoice to VAT return without re-typing
- Match your VAT scheme — Flat Rate Scheme, Cash Accounting, and standard accounting each need slightly different handling
- Plan for MTD for ITSA — if you're self-employed with income above £50,000, check the vendor's roadmap for quarterly Income Tax submissions ahead of April 2026
Frequently Asked Questions
Can I still use a spreadsheet for MTD?
Yes, but only if the spreadsheet is connected to HMRC via MTD-compatible bridging software that preserves digital links. A standalone spreadsheet with manual submission through the old HMRC portal is no longer compliant.
Is free software ever MTD-compatible?
Some free tools are genuinely MTD-compatible and appear on HMRC's recognised software list, but many free "cloud accounting" apps only handle record-keeping and stop short of the API submission step. Always verify against the official list rather than trusting a marketing claim.
Do I need separate software for invoicing and VAT returns?
Not necessarily. Full accounting suites combine both. Many small businesses instead use a dedicated invoicing tool for professional, HMRC-compliant invoices and pair it with lower-cost bridging software purely for the VAT return submission.
What happens if my software stops being MTD-compatible?
You must switch before your next VAT return deadline. HMRC periodically reviews and can remove products from its recognised list, so it is worth checking the list at least once a year, especially if you use a smaller or newer vendor.
Common MTD Mistakes to Avoid
Common MTD Mistakes to Avoid includes: Using the HMRC portal to file — this is no longer permitted for VAT returns. You must use software.
- Using the HMRC portal to file — this is no longer permitted for VAT returns. You must use software.
- Manual data entry between systems — "digital links" means automated data transfer. Copy-pasting between spreadsheets breaks the rules.
- Not keeping purchase records digitally — MTD requires both sales AND purchase records to be digital
- Assuming free software is MTD-compatible — check HMRC's list of recognised software. Not every free tool qualifies.
How Invoicemonk Supports UK Businesses
Invoicemonk helps UK businesses create compliant invoices with:
Invoicemonk helps UK businesses create compliant invoices with:
- Automatic 20% VAT calculation when GBP is selected
- All mandatory HMRC invoice fields built in
- UTR and VAT number fields for seller and buyer
- Sequential invoice numbering
- Multi-currency support for international clients
- Professional invoice templates that meet HMRC standards
While Invoicemonk handles the invoicing side, pair it with MTD-compatible accounting software for VAT return submission.
Preparing for MTD for Income Tax
If you're self-employed with income above £50,000, MTD for ITSA launches in April 2026. This means quarterly digital submissions — making it even more important to have your invoicing and record-keeping software set up correctly now.
If you're self-employed with income above £50,000, MTD for ITSA launches in April 2026. This means quarterly digital submissions — making it even more important to have your invoicing and record-keeping software set up correctly now.
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