How to Register for Making Tax Digital Correctly

A missed Making Tax Digital sign-up can mean more than an awkward HMRC letter. It can leave a VAT return unfiled, create avoidable penalties and add pressure when you are already on the road, on site or running a business. This guide explains how to register for Making Tax Digital properly, whether you are a sole trader, landlord, subcontractor or limited company director.

First, check which Making Tax Digital rules apply to you

Making Tax Digital, usually shortened to MTD, is not one single registration. The process depends on whether you are joining for VAT or for Income Tax Self Assessment.

MTD for VAT applies to VAT-registered businesses. If your taxable turnover is above the VAT registration threshold, currently £90,000, you must follow MTD rules for VAT. Businesses that register for VAT voluntarily generally also need to keep digital records and submit VAT returns through compatible software, unless HMRC has granted an exemption.

MTD for Income Tax Self Assessment is being introduced in stages. From 6 April 2026, self-employed people and landlords with qualifying income above £50,000 must use it. The threshold reduces to £30,000 from 6 April 2027, with further expansion planned from April 2028.

Qualifying income means your gross income from self-employment and property before expenses, not your profit. For example, a cab driver with £55,000 of fares and allowable expenses of £18,000 is likely within scope from April 2026 because their gross self-employment income is over £50,000. The same principle applies to a landlord: rental income is considered before mortgage interest, repairs and other allowable costs are deducted.

If you have both rental income and sole trader income, HMRC looks at the combined qualifying income. Employment income, dividends and pension income do not count towards this particular threshold, although they still need to be reported where relevant.

What you need before registering

Registration is much easier when the groundwork is done first. You will need your Government Gateway sign-in details and the tax reference relevant to the service. For VAT, this is normally your VAT registration number. For Income Tax, it will usually be your Unique Taxpayer Reference, known as a UTR.

You also need compatible MTD software in place. A spreadsheet on its own is not enough unless it is connected to HMRC through approved bridging software. For a straightforward sole trader or landlord, cloud bookkeeping software is often the simplest route because it records transactions, keeps a digital audit trail and prepares submissions in the right format.

Before choosing software, think about how you actually work. A subcontractor may need to track CIS deductions and expenses from several jobs. A black cab driver may want quick mileage or expense capture between shifts. A landlord with several properties needs clear records by property, not one mixed pot of receipts. The cheapest package is not always the best value if it creates more work at return time.

It is also worth bringing your records up to date first. MTD does not make poor records disappear. It makes regular reporting more visible, so reconcile your bank account, categorise outstanding expenses and deal with missing invoices before you sign up.

How to register for Making Tax Digital for VAT

If you are already VAT registered, start by confirming that your accounting software is ready to submit VAT returns. Check that your business details in the software match the details held by HMRC, particularly your VAT number and registered business name.

You then sign in to your HMRC business tax account and follow the MTD for VAT registration process. HMRC will ask for basic business details and confirmation that you have compatible software. Once the application is submitted, allow time for HMRC to activate the service before filing your next VAT return.

Timing matters. Do not leave registration until the day your VAT return is due. If you currently pay VAT by Direct Debit, avoid registering in the few working days before the payment is due, as the old Direct Debit instruction may be cancelled during the move. You can set up a new instruction once your MTD VAT account is active.

After receiving confirmation, connect your software to HMRC using the software's authorisation process. This is what allows the program to send your VAT return directly. From that point, keep your VAT records digitally and submit each return through the software rather than entering figures manually on the old VAT return service.

Registering for MTD Income Tax Self Assessment

The process for Income Tax is more involved because it changes how information is reported during the year. If you are required to join from April 2026, HMRC should identify you using information from previous Self Assessment returns and invite you to sign up. Do not ignore that contact, but do check that the income figure is correct, particularly if your turnover has reduced.

Once registered, you will maintain digital records using compatible software and send quarterly updates for each business or property source. These updates are not four tax bills. They are summaries of income and expenses sent to HMRC during the year, helping you and HMRC see the running position.

At the end of the tax year, you will finalise the figures and submit the end-of-period information and final declaration. This is where adjustments such as capital allowances, private-use proportions, losses and other tax entries are dealt with. The quality of your quarterly bookkeeping affects how straightforward that final stage will be.

If you use an accountant, they can be authorised as your tax agent and manage the process through agent services. That does not remove your responsibility for the figures, but it does mean you have someone checking the records, deadlines and treatment of expenses before submissions are made.

Common registration mistakes to avoid

The most common mistake is assuming MTD is only for businesses making a profit. The Income Tax threshold is based on qualifying income, while VAT obligations are based on taxable turnover. Those are different tests, and neither is simply a measure of money left in the bank.

Another problem is registering without software that fits the job. If you invoice customers, deal with CIS statements, receive card payments and have cash expenses, choose a system that can handle those records without duplicate entry. Trying to rebuild a year's worth of transactions from a shoebox of receipts every March defeats the point.

Finally, keep personal and business spending separate wherever possible. A dedicated business bank account is not compulsory for every sole trader, but it makes digital record keeping cleaner and gives your accountant a clearer view of what can be claimed.

When an exemption may apply

HMRC can grant an exemption from MTD where it is not reasonably practical to use digital tools because of age, disability, location or another valid reason. Religious beliefs that prevent the use of electronic communications can also be relevant.

An exemption is not automatic, and being busy or uncomfortable with software alone is unlikely to be enough. Speak to HMRC or get advice before assuming you are exempt. If your concern is confidence rather than inability, practical setup and bookkeeping support is usually a better long-term answer.

Get the setup right before the deadline

Making Tax Digital is manageable when it becomes part of the weekly routine rather than a last-minute filing task. Set aside a short time each week to photograph receipts, match transactions and review what has come in and gone out. For many tradespeople and drivers, that is far less disruptive than losing a full weekend to paperwork before a deadline.

At Short And Sons Accountants, we help clients choose suitable software, register correctly and keep records in a way that works around real working days. The aim is not more admin for its own sake. It is clearer numbers, fewer surprises and the confidence that your HMRC obligations are being handled properly.