Free MTD VAT Software UK 2026: Your Options, Honestly Compared

HMRC's Making Tax Digital rules have two requirements. First, you must keep digital records of your VAT transactions. Second, you must file your VAT return digitally using software that connects to HMRC's API. There must be a digital link between your records and what gets submitted: you cannot retype figures into a separate filing tool.

In practice, this means any MTD software you use must be able to: store or import your VAT transaction records, calculate the nine VAT return boxes (Box 1 through Box 9), and submit the return directly to HMRC through an authenticated connection.

Bridging software is a separate category. It connects to a spreadsheet you have already filled in and acts only as the digital link to HMRC. It satisfies the MTD rules but does not help you keep records or calculate VAT. If your bookkeeping already lives in a spreadsheet, bridging software may be all you need.

Three options stand out as genuinely free for UK businesses in 2026, each with conditions worth understanding before you commit.

FreeAgent is the most fully featured free option. It is a complete accounting package covering invoicing, expenses, bank feeds, and VAT. The catch is eligibility: it is only free if you bank with NatWest, Royal Bank of Scotland, Ulster Bank, or Mettle. If you bank elsewhere, FreeAgent costs from around £19/month. For eligible businesses, it is a strong option with good MTD VAT support.

QuickFile has a permanently free tier aimed at smaller businesses. The free plan includes VAT return preparation and MTD submission. It starts to charge for larger accounts (typically above a certain number of ledger entries per year). For very small, low-volume businesses it is a practical choice.

My Tax Digital is a browser-based bridging tool. You enter or paste your nine VAT box figures, connect to HMRC once via Government Gateway, and file. It is genuinely free and straightforward. It is suitable only if you already know your VAT figures from a spreadsheet or external records.

If you do not qualify for FreeAgent's free tier and find QuickFile too limited, a category of low-cost bridging tools sits between free and full-priced accounting software. These typically charge a small annual fee and are designed for businesses that keep records in a spreadsheet and want a reliable, HMRC-approved way to file.

123 Sheets, VitalTax, and Easy MTD VAT are among the most widely used. At the time of writing, most are priced at around £30 to £50 per year for a single VAT registration. They connect to a spreadsheet, read the nine VAT boxes you have already calculated, and submit to HMRC.

The limitation is identical to free bridging: you are still doing all the bookkeeping work yourself. These tools do not categorise transactions, calculate VAT, or reduce your admin workload. They simply handle the last step of getting your figures to HMRC.

Free software removes the subscription cost. It does not remove the workkeeping work. That distinction matters when you are calculating what MTD VAT compliance actually costs your business.

Every quarter, a VAT-registered business needs to: reconcile bank transactions, categorise purchases and sales correctly, account for any partial exemption, standard-rated, zero-rated, and exempt supplies, calculate Box 1 through Box 9, review for errors, and file by the deadline. With free bridging software or a basic free accounting package, you do all of that. The software handles only the last step.

For a sole trader or micro-business with simple finances and time to spare, that may be perfectly acceptable. For a busier business or one with a mix of VAT rates, multiple bank accounts, or volume of receipts, the time cost of manual bookkeeping is real. At, say, three hours per quarter at your billable rate, the maths often favours paying for software that automates the categorisation and calculation.

The three dominant UK accounting packages all include MTD VAT filing as standard. They are not free, but they go well beyond what bridging tools offer: automatic bank feeds, transaction categorisation, purchase and sales ledgers, invoicing, and a live running VAT liability you can monitor throughout the quarter.

Xero starts from around £15 per month for its entry plan (Starter), though limits on invoices and bills apply. QuickBooks starts from around £12 per month plus VAT for Simple Start. Sage starts from around £15 per month. All prices are at the time of writing and subject to change. All three are well-established on the HMRC software list and have robust MTD VAT implementations.

The criticism levelled at all three is that they have raised prices significantly in recent years while the core experience has not changed much. None of them uses AI to do the bookkeeping work for you: transactions still need manual categorisation in most cases, or rules you set up yourself. You are paying for a more sophisticated manual process, not an automated one.

The decision comes down to what you are buying. Free software buys you MTD compliance. Paid software, done well, buys you time.

Paying makes clear sense if any of these apply: you have 50 or more transactions per month and manual categorisation takes meaningful time; you receive a high volume of receipts and currently photograph, file, or forward them manually; you find yourself scrambling near each VAT deadline because the bookkeeping is not up to date; or you have more than one bank account or card to reconcile.

It also makes sense if the alternative is not free software but an accountant or bookkeeper doing the quarterly VAT work for you. Bookkeeping support typically costs from £50 to £200 per month depending on volume and geography. A platform that automates most of that work costs considerably less.

AccountsOS is an AI accounting platform built for UK founders and small businesses. It is MTD-compatible software that submits VAT returns directly to HMRC under Making Tax Digital. It is not free: after a 14-day free trial (no card required), it costs £20 per month.

Where it differs from both free options and traditional paid software is in what it automates. The AI, Finn, categorises transactions as they arrive, captures receipts sent via WhatsApp, email, or the app, matches payments to invoices, and calculates the nine VAT boxes live throughout the quarter. When the deadline approaches, the return is ready to review and submit: you are not starting from scratch.

The £20 per month is not a charge for the same thing as free software, done slightly better. It is a charge for removing most of the manual work that free software leaves entirely with you. For a business spending two to four hours per quarter on VAT bookkeeping, the cost typically pays for itself in time saved in the first month.

AccountsOS is built to HMRC's MTD VAT API specification and submits directly to HMRC. It is not on a waiting list and does not require a separate bridging step.

VAT return deadlines under MTD are the same as they were before: one calendar month and seven days after the end of the VAT period. For a standard quarterly VAT period ending 31 March, the deadline is 7 May. For a period ending 30 June, the deadline is 7 August.

Payment of any VAT owed is also due by the same deadline in most cases. HMRC operates a points-based penalty system for late filing and late payment since January 2023. A late submission earns one penalty point. Reaching the threshold for your filing frequency triggers a £200 penalty, with further £200 charges for each subsequent late return while above the threshold.

One practical implication: do not leave your bookkeeping until the final days before the deadline. With MTD, the submission itself is fast once your records are in order. The time pressure comes from getting the records straight, not from the filing process.