Making Tax Digital 2026: What UK Small Businesses Must Know

Making Tax Digital 2026 represents the next major phase of HMRC's digital transformation, extending mandatory quarterly digital reporting to millions of sole traders and landlords across the UK. If you're running a small business or earning rental income, this comprehensive guide will help you understand what's changing, who's affected, and how to prepare for the new requirements.

Who Is Affected by Making Tax Digital 2026?

Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) will be introduced in two phases, based on your annual gross income from self-employment or property:

April 2026 (Phase 1):

• Sole traders with business income over £50,000
• Landlords with property income over £50,000
• General partnerships where at least one partner is an individual

April 2027 (Phase 2):

• Sole traders with business income over £30,000
• Landlords with property income over £30,000
• The same rules apply to partnerships

It's crucial to note that these thresholds are based on your gross income (total revenue before expenses), not your profit. Even if your business is barely breaking even, if your turnover exceeds £50,000, you'll need to comply from April 2026.

Key Dates for Making Tax Digital 2026

Understanding the timeline is essential for proper preparation. Here's a comprehensive breakdown of the critical dates:

The transition period between April 2025 and April 2026 is your window to prepare. HMRC won't penalise businesses for late digital submissions during the first year, provided you make a genuine effort to comply.

What Are the Quarterly Reporting Requirements?

Making Tax Digital 2026 fundamentally changes how you report your income and expenses to HMRC. Instead of the traditional annual Self Assessment tax return, you'll need to:

Submit Quarterly Updates

Every quarter, you must submit a digital summary of your:

• Business or property income
• Allowable business expenses
• Any other relevant financial information

These updates are due within one month and one day after each quarter end. The four quarters align with the tax year:

1. 6 April to 5 July
2. 6 July to 5 October
3. 6 October to 5 January
4. 6 January to 5 April

End of Period Statement (EOPS)

After the tax year ends (5 April), you'll need to submit an End of Period Statement. This confirms that your quarterly submissions are complete and accurate, and allows you to make any necessary adjustments or corrections.

Final Declaration

By 31 January following the tax year end, you must submit your Final Declaration. This is the formal submission of your tax return (replacing your traditional self-assessment return) and includes:

• Confirmation of your total income and expenses
• Any additional income not covered in quarterly updates
• Claims for reliefs and allowances
• Your final tax calculation

While this replaces the traditional Self Assessment tax return, the deadline remains the same: 31 January.

Digital Record-Keeping Rules Under MTD

Making Tax Digital 2026 isn't just about quarterly reporting—it fundamentally changes how you must maintain your business records.

What Must Be Digital

You must keep digital records of:

• All sales and income
• All business purchases and expenses
• Grants and subsidies received
• Goods or services taken for personal use
• Balancing charges and capital allowances
• For landlords: rental income, property expenses, and tenant details

Crucially, these records must be stored digitally from the point of entry. You can't maintain paper records and digitise them later—the information must be digital from the start.

What Can Remain on Paper

HMRC recognises that some records are naturally paper-based. You can keep physical receipts, invoices, and bank statements, but you must have a digital record of the transaction details within your MTD-compatible software.

For example, you can keep a paper receipt for a business purchase, but you must record the date, amount, supplier, and nature of the expense digitally.

Record Retention Period

Digital records must be retained for at least five years after the 31 January submission deadline. For the 2025/26 tax year, that means keeping records until at least 31 January 2032.

MTD-Compatible Software Requirements

To comply with Making Tax Digital 2026, you'll need software that can:

1. Keep digital records in the required format
2. Submit quarterly updates directly to HMRC via API
3. Generate End of Period Statements and Final Declarations
4. Maintain the digital link between records and submissions (no manual data re-entry)

Bridging Software vs Full MTD Software

You have two options:

Bridging Software connects your existing spreadsheets to HMRC. Whilst this is the minimum requirement, it often involves more manual work and doesn't provide the full benefits of automation.

Full MTD Software (like AccountsOS) handles everything from receipt capture to HMRC submission, with automated bank feeds, intelligent categorisation, and integrated tax calculations. See how it works and our pricing.

Why HMRC Requires API Submissions

HMRC mandates that all submissions must be made via Application Programming Interface (API). This means:

• No manual typing into HMRC's portal
• No copying and pasting from spreadsheets
• Software must communicate directly with HMRC's systems

This requirement ensures data accuracy and enables HMRC to provide real-time feedback on your tax position.

How Making Tax Digital 2026 Differs from MTD for VAT

If you're already registered for VAT, you may be familiar with Making Tax Digital for VAT, which became mandatory in April 2019 for VAT-registered businesses above the threshold. However, MTD for ITSA has some important differences:

The key difference is that MTD for ITSA requires comprehensive business records, not just VAT-related transactions. Even if you're already MTD-compliant for VAT, you'll need to ensure your software and processes cover all income tax requirements.

Preparing for Making Tax Digital 2026: Your Checklist

Whether you're affected in April 2026 or April 2027, preparation is key. Here's your step-by-step preparation checklist:

6-12 Months Before Your Start Date

• Calculate your gross income for the current and previous tax years to confirm if you're affected
• Review your current record-keeping and identify what needs to change
• Research MTD-compatible software options and their features
• Assess your digital skills and identify any training needs
• Review your business structure (some structures may benefit from restructuring)

3-6 Months Before Your Start Date

• Choose and purchase MTD-compatible software (consider free trials)
• Set up your digital record-keeping system with proper categories and nominal codes
• Connect bank feeds to automate transaction imports and track expenses
• Migrate historical data if switching from existing software
• Practice running quarterly reports to familiarise yourself with the process

1-3 Months Before Your Start Date

• Sign up for Making Tax Digital through your HMRC business tax account
• Link your software to HMRC using your authorisation credentials
• Submit a test update to ensure everything works correctly
• Establish a quarterly routine for recording transactions and reviewing financials
• Brief any staff or bookkeepers on the new requirements

First Quarter Under MTD

• Record all transactions digitally from day one (6 April onwards)
• Submit your first quarterly update within the deadline
• Monitor HMRC communications for any queries or issues
• Review and adjust your processes based on first-quarter experience

Common Challenges and How to Overcome Them

Challenge 1: Digital Skills Gap

Many sole traders and landlords aren't comfortable with accounting software. Start learning early, use software with strong support resources, and consider brief training from your accountant.

Challenge 2: Cash Flow Visibility

Quarterly submissions mean you'll see your tax liability building up throughout the year. This is actually beneficial—use it to make regular payments on account and avoid a large January bill.

Challenge 3: Increased Admin Time

Initially, MTD may feel more time-consuming. However, good software automates most tasks, and many businesses find quarterly reviews actually improve their financial awareness and decision-making.

Challenge 4: Multiple Income Sources

If you have both self-employment income and property income, you may need to submit separate quarterly updates for each. Choose software that handles multiple income streams efficiently.

How AccountsOS Simplifies Making Tax Digital 2026

AccountsOS is fully MTD-compliant and designed specifically for UK small businesses navigating Making Tax Digital 2026. Here's how we help:

Automatic MTD Compliance

• Instant receipt capture via mobile app—snap photos of receipts and our AI extracts the details
• Automated bank feeds import transactions daily with intelligent categorisation
• Quarterly update generation with one-click submission to HMRC
• End of Period Statements and Final Declarations handled automatically

Real-Time Tax Visibility

• Live tax calculation shows your current Income Tax and National Insurance liability
• Quarterly projection estimates what you'll owe based on current performance
• Tax savings alerts flag allowable expenses you might have missed

Compliance Peace of Mind

• Digital record retention for the required five years
• Audit trail showing when records were created and submitted
• HMRC submission history accessible any time
• Automatic deadline reminders so you never miss a quarterly update

Support When You Need It

• Free onboarding to get your records digitised and ready for MTD
• UK-based support team who understand HMRC requirements
• Regular updates as HMRC clarifies or changes MTD rules
• Accountant collaboration tools to share access with your tax advisor

AccountsOS handles the complexity of Making Tax Digital 2026, allowing you to focus on running your business rather than wrestling with compliance requirements.

Exemptions and Special Cases

Whilst Making Tax Digital 2026 affects most sole traders and landlords above the income thresholds, some exemptions exist:

Who May Be Exempt

• Digital exclusion: If you're unable to use digital tools due to age, disability, remoteness, or religious objection, you may apply for an exemption
• Non-resident landlords: Currently exempt, though this may change
• Trustees and executors: Different rules apply to trusts and estates

Requesting an Exemption

Exemptions aren't automatic. You must apply to HMRC and demonstrate that complying with MTD would cause undue hardship. HMRC will assess each case individually, and exemptions are typically reviewed annually.

Voluntary Sign-Up

If you're below the income thresholds (£30,000 from April 2027), you can still voluntarily sign up for Making Tax Digital. Benefits include:

• Better financial visibility through quarterly reviews
• Reduced year-end panic with regular submissions
• Potential for faster tax refunds
• Future-proofing as thresholds may be lowered

The Future of Making Tax Digital

Making Tax Digital 2026 is just one phase of HMRC's long-term digital strategy. Looking ahead:

• Lower thresholds: HMRC may eventually extend MTD to all self-employed individuals
• Real-time tax calculations: Future enhancements may provide instant tax estimates
• Pre-populated returns: HMRC aims to pre-fill returns with known information
• Integrated reporting: Potential future integration with Companies House for limited companies

The direction is clear: digital record-keeping and reporting will become the standard for all UK taxpayers. Early adoption positions your business to benefit from these future improvements.

Frequently Asked Questions About Making Tax Digital 2026

What happens if I miss the £50,000 threshold in one year but exceed it the next?

You only need to join MTD if your income exceeds the threshold in the previous tax year. If your 2025/26 income is under £50,000 but your 2026/27 income exceeds it, you'd join MTD from April 2028 (for the 2028/29 tax year).

Can I still use spreadsheets under Making Tax Digital?

Yes, but only if you use bridging software that connects your spreadsheets to HMRC via API. You cannot manually input data into HMRC's systems. Most businesses find dedicated MTD software more efficient than spreadsheets with bridging software.

What if I have both self-employment and rental income?

You'll need to maintain digital records for both income sources and may need to submit separate quarterly updates. Check whether your software supports multiple income streams within a single subscription.

Will my accountant still prepare my tax return?

The Final Declaration serves the same purpose as your tax return. Your accountant can still prepare this, but they'll need access to your MTD-compatible software or their own MTD platform. Many accountants now offer MTD-ready services.

What are the penalties for non-compliance?

HMRC will take a light-touch approach in the first year, focusing on helping businesses comply rather than issuing penalties. After that, standard Self Assessment penalties apply for late submissions, with additional penalties possible for not keeping digital records.

Do I need separate software for MTD for VAT and MTD for ITSA?

Not necessarily. Many MTD-compatible software solutions (including AccountsOS) handle both VAT and Income Tax requirements in one platform. This is more efficient and cost-effective than using separate systems.

Can I backdate my digital records?

No. Digital record-keeping must begin from 6 April of the tax year you join MTD. You can't digitise previous years' paper records and use them for MTD submissions. However, you can (and should) digitise historical records for reference and tax planning.

What if my business is seasonal?

Quarterly reporting still applies, even if some quarters have minimal activity. In quiet periods, you'll simply submit updates showing little or no income. This actually provides a more accurate picture of your business's seasonal patterns.

Is Making Tax Digital mandatory?

Yes, if your income exceeds the thresholds. MTD for ITSA is not optional for eligible businesses, except in specific exemption cases. Businesses that don't comply may face penalties and additional scrutiny from HMRC.

How much does MTD-compatible software cost?

Costs vary widely, from free basic packages to £30+ per month for comprehensive solutions. AccountsOS offers transparent pricing tailored to UK small businesses, with all MTD features included in every plan. See how we compare to Xero and FreeAgent. Consider the cost against the time saved and penalties avoided—quality software quickly pays for itself.

Take Action Now

Making Tax Digital 2026 is approaching rapidly. Whether you're affected in April 2026 or April 2027, the time to prepare is now. Here are your next steps:

1. Calculate your gross income to determine your MTD start date
2. Review your current record-keeping and identify gaps
3. Try MTD-compatible software with a free trial (AccountsOS offers a 14-day trial)
4. Speak with your accountant about their MTD support services
5. Start digitising your records now to build good habits

The businesses that thrive under Making Tax Digital will be those that embrace it early, invest in the right tools, and view quarterly reporting as an opportunity for better financial management rather than just a compliance burden.

AccountsOS is here to make that transition seamless. Our AI-powered platform handles all MTD requirements automatically, from receipt capture to HMRC submission, giving you complete visibility and control over your tax affairs. Start your free trial today and see how straightforward Making Tax Digital can be.

This article was last updated on 11 January 2025. Making Tax Digital regulations may change. Always check the latest HMRC guidance or consult a qualified tax advisor for advice specific to your circumstances.