Best MTD Software UK 2026: Free and Paid Options Compared

Not all accounting software is MTD-compatible. To qualify, software must meet three requirements set by HMRC: 1. **Listed on HMRC's recognised software page** — HMRC maintains an official list of software that has been tested and approved for MTD submissions. Using software not on this list means your submissions may not be accepted. 2. **Digital links** — Your records must flow digitally from entry to submission without manual re-keying. This means you cannot type figures from your software into a separate submission tool. The software must connect directly to HMRC's API. 3. **API submission** — The software must be able to submit quarterly updates and Final Declarations directly to HMRC through their Making Tax Digital API. This is a technical requirement that the software provider handles. You do not need to verify these requirements yourself — if the software is on HMRC's list, it meets all three. The key point is that you cannot use generic spreadsheet software (like Excel or Google Sheets) on its own for MTD. You either need full MTD software or a bridging tool that connects your spreadsheet to HMRC.

Several genuinely free MTD-compatible options exist. Here is how they compare for the 2026/27 tax year:

If you need more features, multiple users, or advanced reporting, paid options offer significantly more capability:

AccountsOS takes a fundamentally different approach to MTD compliance. Rather than giving you another accounting interface to learn, it lets you chat with your books in plain English. Ask "how much did I spend on travel this quarter?" and get an instant answer. Upload a receipt and it gets categorised automatically using AI. When your quarterly deadline approaches, AccountsOS prepares your submission and walks you through confirming the figures — no manual data entry required. Key advantages of AccountsOS for MTD: - **AI-native** — built from the ground up with AI, not bolted on afterwards. The AI understands UK tax rules, HMRC categories, and can explain your figures in plain English. - **Free during Early Access** — no cost while we build out the platform. Early adopters lock in at £9/month when pricing starts. - **UK-specific** — designed exclusively for UK taxpayers. Every category, deadline, and rule is HMRC-aligned. - **Voice-first** — talk to your books while driving, walking, or cooking. No screen required. - **HMRC integration** — direct API connection to HMRC for MTD submissions, VAT returns, and deadline tracking. - **Receipt dump** — forward receipts by email or upload them. AI handles categorisation and matching. AccountsOS is not trying to replace Xero or QuickBooks for large businesses with complex needs. It is built for the solo founder, freelancer, or landlord who wants MTD compliance without becoming an accountant.

If you currently use spreadsheets for your bookkeeping and do not want to fully switch to accounting software, bridging software offers a middle ground. Bridging software connects your existing spreadsheet to HMRC's MTD API. You continue keeping your records in Excel or Google Sheets, and the bridging tool extracts the relevant totals and submits them to HMRC. Popular bridging options include: - **BTCSoftware** — established bridging tool used by many accountants - **123 Sheets** — specifically designed for spreadsheet users - **TaxCalc** — offers both full software and bridging functionality The catch: bridging software only handles the submission. It does not help with bookkeeping, categorisation, or record-keeping. You are responsible for ensuring your spreadsheet categories match HMRC's requirements and that your figures are correct. HMRC requires "digital links" throughout the record-keeping process. This means if you copy figures manually from one spreadsheet to another, or from a paper record to a spreadsheet, you may not be compliant. The data must flow digitally from the point of entry to the point of submission. For most people, using proper MTD software (especially a free option) is simpler and safer than trying to maintain compliance through bridging.

Your choice depends on three factors: your business type, your budget, and your comfort with technology. **Sole traders with simple income**: A free option like AccountsOS or QuickFile is likely sufficient. You do not need advanced features — you need reliable quarterly submissions and basic expense tracking. **Landlords with property income**: Look for software that handles property income categories specifically. AccountsOS and FreeAgent both handle property income well. Xero can handle it with the right chart of accounts setup. **Freelancers and contractors**: FreeAgent has been the go-to for years, especially if your bank offers it free. AccountsOS is a strong alternative if you want AI-powered categorisation without the monthly cost. **Multiple income streams**: If you have both self-employment and property income, you need software that can handle both in a single return. Most MTD software supports this, but check before committing. **Already using accounting software**: If you already use Xero, QuickBooks, or Sage, the simplest path is to stay with your current provider and ensure your plan includes MTD for ITSA. Switching software is disruptive and rarely necessary. **Technophobe**: AccountsOS is designed specifically for people who are not comfortable with traditional accounting software. The chat interface means you never need to navigate complex menus or understand double-entry bookkeeping.

Technically, yes — but only with bridging software. You cannot use a standalone spreadsheet (Excel, Google Sheets) to comply with MTD for ITSA because spreadsheets cannot submit data to HMRC's API. With bridging software, you can maintain your records in a spreadsheet and use the bridging tool to submit quarterly updates. However, you must ensure: - All data flows digitally (no manual re-keying between systems) - Your spreadsheet categories match HMRC's required income and expense categories - You keep the spreadsheet for at least 5 years and 10 months after the tax year For MTD for VAT, HMRC has been strict about digital links since April 2022. The same standard will apply to MTD for ITSA. Spreadsheet users have been caught out by the digital links requirement, so if you go this route, make sure your bridging software provider confirms full compliance. Our honest recommendation: the effort of maintaining a compliant spreadsheet plus bridging software usually exceeds the effort of switching to free, purpose-built MTD software.

If you are currently using software that is not MTD-compatible, switch well before April 2026 to give yourself time to set up and learn the new system. Steps to switch: 1. **Export your data** from your current system — most software offers CSV or Excel export of transactions, contacts, and invoices 2. **Choose your new MTD software** — use this guide to compare options 3. **Import your historical data** — most MTD software supports CSV import for bank transactions and contacts 4. **Set up your bank feeds** — connect your bank account for automatic transaction import 5. **Reconcile** — verify that your opening balances match between old and new systems 6. **Run parallel for one month** — if possible, run both systems side by side for a month to catch any discrepancies 7. **Start using the new system exclusively** from the beginning of a new quarter Ideally, switch by January 2026 to give yourself a full quarter of practice before MTD starts in April. Switching in March is technically possible but leaves no margin for error. AccountsOS supports CSV import from all major UK banks (Barclays, Revolut, Starling, Monzo, HSBC, Lloyds) and can import transaction history to get you up and running quickly.