HMRC MTD for Income Tax: What UK Crypto Holders Must Do Now
HMRC updated its official Making Tax Digital (MTD) for Income Tax sign-up guidance on 13 August 2026, clarifying who must enrol, what counts as qualifying income, and how the system handles people with multiple or ceased income sources. If you hold crypto and also earn from self-employment or property, this update touches your crypto tax UK obligations directly. Here's what changed and what you need to do.
What MTD for Income Tax Actually Is
MTD for Income Tax replaces the traditional annual Self Assessment return for qualifying taxpayers with a system of quarterly digital updates sent through HMRC-approved software. You still submit an end-of-year tax return, but the quarterly updates provide HMRC with a running picture of your income throughout the year.
Who is affected right now
The mandatory threshold for the 2026 to 2027 tax year is £50,000 in total qualifying income. Qualifying income means your combined gross turnover from self-employment and property, based on the figures you reported in your most recent Self Assessment return, before any deductions for expenses. If you cleared that bar on your last return, you're already required to use MTD. HMRC will not apply penalty points for late quarterly updates during this first year, but penalties still apply if you miss the final tax return deadline or pay your bill late.
Volunteers can sign up early
If your income sits below £50,000, you can still sign up voluntarily for either the current tax year or the next one. The guidance now explicitly confirms this: you don't have to wait until you're mandated. Early sign-up lets you get comfortable with the quarterly rhythm before it becomes compulsory, and HMRC's published penalty rules for volunteers differ slightly from those for mandated users, so it's worth reading that detail before you opt in.
Where Crypto Fits Into This Picture
This is the part most crypto holders miss. The £50,000 threshold is calculated solely from self-employment and property income. Crypto gains, crypto income (such as staking rewards or airdrops), and other investment income are not part of the qualifying income calculation and are not assessed during the MTD sign-up process.
How crypto gets reported under MTD
Once you're inside the MTD system, your compatible software is where everything comes together. The quarterly updates cover your trading and property figures. Your crypto disposals, gains, income from staking, and any other cryptoasset activity are added to your end-of-year submission through the same software before you finalise and submit your return to HMRC. The sign-up service itself won't ask about crypto, but you still need to report it accurately at year-end, and you need software that can handle both your business or property figures and your crypto tax report in one place.
Why your crypto records need to be digital from day one
MTD mandates digital record-keeping. That means spreadsheets disconnected from your filing software create a bridging problem. If you're using a crypto tax calculator or specialist crypto tax software to calculate crypto taxes, you need to confirm that it either integrates with your MTD-compatible filing tool or exports data in a format that tool accepts. Checking compatibility now, rather than in January, is the practical move.
Key Changes in the 13 August 2026 Update
The GOV.UK guidance page was updated specifically to address a handful of practical gaps that had caused confusion since the April 2026 launch.
Qualifying income definition clarified
HMRC added explicit wording to confirm that qualifying income is your gross turnover from self-employment and property, not your profit. This matters because some taxpayers had been calculating the threshold using their net profit figure and concluding they were below £50,000 when their gross receipts were actually above it. If you're a freelancer or landlord, use your gross receipts from your last return to check your position.
Ceased income sources now addressed
A new section covers what happens if you've stopped trading or no longer receive property income since your last Self Assessment return. If all your qualifying income sources have ceased, you must contact HMRC before the start of the next tax year. If you don't, HMRC's systems will still expect you to file under MTD, and you could face compliance issues. HMRC will update your records and send written confirmation that MTD no longer applies to you.
Multiple income sources
If you run more than one self-employment business, or have both self-employment and property income, the guidance now makes clear that you must register each source individually through the online service and check that none are missing. This is particularly relevant for crypto traders who also operate an unrelated freelance business: both income streams need to appear in your MTD software setup.
Planned maintenance window
The update also flagged a planned service outage: the MTD for Income Tax sign-up service will be unavailable from 5pm on Friday 11 September 2026 to 1pm on Tuesday 15 September 2026. If you intend to sign up, do it before 11 September or after 15 September.
Identity Verification: What to Expect
HMRC may ask you to prove your identity during sign-up. You have two routes. The first is a biometric check using a mobile app that matches a photo of your face to your passport or driving licence. The second is an answering-questions route using information HMRC already holds, such as details from your passport, driving licence, credit reference, latest P60, or a recent payslip. Having one of these documents to hand before you start will save time.
Practical Steps for Crypto Holders
Step 1: Calculate your qualifying income threshold
Pull up your most recent Self Assessment return. Add your gross self-employment turnover and gross property income. If the total exceeds £50,000, you're mandated for 2026 to 2027 and should sign up immediately if you haven't already. Remember: crypto income and gains do not count toward this figure.
Step 2: Choose MTD-compatible software that handles crypto
HMRC maintains a list of software that works with MTD for Income Tax. Before committing to any tool, confirm it can also import or calculate your crypto tax UK position, either natively or via a recognised import format. Using a separate crypto tax calculator that doesn't connect to your MTD software will create extra manual work and a potential audit trail gap. Read our guide on HMRC MTD for Income Tax: what UK crypto holders must do now for a deeper walkthrough of the software selection process.
Step 3: Sort your digital records now
MTD requires digital records from the start of the tax year you sign up for. If you're joining mid-year, you'll need to use compatible software to submit any missed quarterly updates for the months already passed. Get your transaction history out of exchanges, wallets, and DeFi protocols and into a format your software can read. The quarterly update deadlines don't pause while you sort out your data.
Step 4: Register for Self Assessment if you haven't already
You must be registered for Self Assessment and have submitted a return within the last two years before you can sign up for MTD. If you've been earning crypto income or making gains and haven't yet registered, do that first. HMRC's computers check this automatically during the MTD sign-up process.
Step 5: Understand the penalty regime before you start
For mandated users in 2026 to 2027, HMRC is not charging penalty points for late quarterly updates during this first year. That grace does not extend to the final return deadline or to late payment. Voluntary sign-ups face a different penalty structure and HMRC will write to you separately once you become liable. Read the official penalties guidance before you opt in so you know exactly when points start accumulating.
You can also read about how HMRC now tracks cryptoasset gains in official UK tax statistics to understand how closely the authority is monitoring this space.
Tax Implications for UK Crypto Holders Inside MTD
MTD doesn't change how crypto is taxed. HMRC's existing guidance on cryptoassets remains in force: disposals are subject to Capital Gains Tax, and income from staking, mining, or airdrops is subject to Income Tax. What MTD changes is the mechanics of how you file. Your crypto figures still go into the annual return, but that return is now submitted through MTD-compatible software, and the software needs to hold digital records of all your transactions throughout the year.
The practical risk for crypto holders is the volume of transactions. Someone who trades actively across multiple exchanges or participates in DeFi protocols can generate hundreds or thousands of taxable events in a single tax year. Manually entering those into MTD software at year-end is not realistic. A dedicated crypto tax calculator that exports directly to your MTD tool is the only sustainable workflow. If you're still working out how is crypto taxed in the UK before you tackle the software question, HMRC's cryptoassets manual is the authoritative starting point.
Frequently Asked Questions
Does crypto income count toward the £50,000 MTD threshold?
No. The threshold is calculated from self-employment and property income only. Crypto gains, staking rewards, and other cryptoasset income are excluded from the qualifying income figure. You still report them in your end-of-year return, but they don't determine whether you're mandated for MTD.
I only have crypto gains and no self-employment or property income. Do I need to use MTD?
Not under the current rules. MTD for Income Tax applies to those with self-employment or property income above the relevant threshold. If your only taxable activity is cryptoasset disposals, you still report those through Self Assessment in the traditional way, though this may change as the MTD rollout extends in future years.
Can I use the same software to handle both my MTD quarterly updates and my crypto tax report?
Potentially, yes. Some MTD-compatible software tools can import cryptoasset transaction data or connect to a crypto tax calculator. HMRC publishes a list of approved MTD software; check each provider's feature list and confirm with them directly that their tool will meet your specific needs before signing up.
What happens if I miss the MTD sign-up service window due to the September maintenance?
The planned outage runs from 5pm on 11 September 2026 to 1pm on 15 September 2026. You can sign up before or after this window. If you're already mandated for 2026 to 2027, the first-year penalty grace for late quarterly updates means a short delay to sign-up is unlikely to cause immediate harm, but you should still act promptly once the service is back online.
What if I stopped receiving self-employment or property income after my last tax return?
Contact HMRC before the start of the next tax year. Tell them your income sources have ceased. HMRC will update your records and send you written confirmation that MTD no longer applies. If you don't do this, HMRC's system will still expect MTD compliance from you.
Source: GOV.UK – Sign up for Making Tax Digital for Income Tax