Making Tax Digital (MTD) represents a major shift in how businesses manage tax reporting in the UK. Introduced by HMRC to modernise the tax system, MTD requires businesses to keep digital records and submit tax information using compatible software.
While the goal of the initiative is to simplify tax reporting and reduce errors, many businesses struggle with the transition to digital processes. From using incorrect software to misunderstanding reporting deadlines, several common mistakes can lead to compliance problems or potential penalties.
For small businesses, sole traders, and landlords, understanding these mistakes early can help ensure a smooth transition to the new system.
This guide explores the most common MTD mistakes businesses make and explains how they can be avoided.
1. Not Using HMRC-Compatible Software
One of the most frequent mistakes businesses make is assuming that any accounting software will work for MTD.
HMRC requires businesses to use MTD-compatible software that can connect directly to its systems and submit digital tax returns.
Some businesses continue using older accounting tools or spreadsheets that are not compatible with HMRC’s digital reporting system.
This can lead to submission failures or non-compliance.
How to Avoid This
Businesses should ensure they use HMRC-approved software. These platforms are specifically designed to handle digital tax reporting and integrate with HMRC systems.
2. Continuing to Use Manual Record Keeping
Another common mistake is relying on paper records or manual bookkeeping methods.
Under MTD rules, businesses must maintain digital records of financial transactions.
This includes details such as:
- income received
- expenses
- VAT charged
- VAT paid on purchases
Paper records alone no longer meet HMRC requirements for businesses subject to Making Tax Digital.
How to Avoid This
Businesses should maintain digital records using accounting software or digital systems that create a clear audit trail.
Even if spreadsheets are used, they must connect to HMRC through approved bridging software.
3. Missing MTD Deadlines
MTD introduces specific submission deadlines depending on the type of tax involved.
Businesses often miss deadlines because they are not familiar with the reporting schedule.
For example:
- VAT returns must be submitted through MTD software according to the standard VAT schedule
- MTD for Income Tax will require quarterly updates
Failing to meet these deadlines can lead to penalties under HMRC’s points-based penalty system.
How to Avoid This
Businesses should:
- Monitor reporting deadlines carefully
- Set reminders within accounting software
- work with an accountant to manage compliance
Accounting software often includes automated reminders for upcoming deadlines.
4. Not Understanding Digital Links
Many businesses misunderstand the requirement for digital links between financial systems.
Under MTD rules, financial data must move between systems electronically.
For example:
If a business uses spreadsheets alongside accounting software, the data transfer must be digital rather than manually re-entered.
Manual copying and pasting of data may break the digital audit trail required by HMRC.
How to Avoid This
Businesses should ensure that:
- All financial systems are digitally connected
- Data transfers occur automatically
- Records remain traceable throughout the reporting process
Professional accountants can also review systems to ensure they meet HMRC digital link requirements.
5. Waiting Too Long to Prepare for MTD
Many businesses delay preparing for Making Tax Digital until the last moment.
This often results in rushed software implementation, incomplete data migration, and confusion about compliance requirements.
Businesses affected by MTD for Income Tax starting in 2026 should begin preparing early.
Early preparation allows time to:
- Implement accounting software
- organise financial records
- understand reporting obligations
How to Avoid This
Businesses should start planning for MTD well before the official implementation date.
Early preparation reduces the risk of last-minute compliance issues.
6. Poor Record Organisation
Even when businesses use accounting software, poorly organised records can still create problems.
Common issues include:
- missing expense receipts
- incorrect transaction categories
- incomplete income records
These problems can lead to inaccurate tax reporting and possible adjustments during year-end reporting.
How to Avoid This
Businesses should maintain structured financial records by:
- categorising transactions correctly
- keeping digital copies of receipts
- reviewing financial data regularly
Routine bookkeeping ensures that financial records remain accurate throughout the year.
7. Not Understanding Quarterly Reporting
Under MTD for Income Tax Self Assessment (MTD ITSA), affected businesses will be required to submit quarterly updates to HMRC.
Some business owners mistakenly believe they will still submit only one annual tax return.
Quarterly reporting means businesses must maintain accurate records throughout the year.
These updates will summarise:
- income received
- expenses incurred
- financial activity within the business
How to Avoid This
Businesses should prepare for quarterly reporting by maintaining up-to-date financial records and using accounting software that simplifies the reporting process.
8. Trying to Manage MTD Without Professional Support
While many accounting platforms are user-friendly, tax compliance rules can still be complex.
Businesses that attempt to manage MTD requirements without professional advice may encounter difficulties with:
- software configuration
- VAT calculations
- income reporting
- tax adjustments
Errors in tax submissions can result in compliance issues or financial penalties.
How to Avoid This
Working with an experienced accountant can significantly reduce the risk of errors.
Accountants can assist with:
- MTD registration
- software setup
- digital record keeping
- tax reporting
- compliance monitoring
Professional guidance ensures that businesses remain aligned with HMRC requirements.
9. Ignoring Future MTD Changes
Making Tax Digital is being introduced gradually, and additional requirements will continue to appear over time.
Some businesses assume that current MTD rules will remain unchanged.
However, upcoming developments include:
- MTD for Income Tax
- potential expansion to Corporation Tax in the future
Businesses should remain informed about these developments to ensure long-term compliance.
How to Avoid This
Regularly reviewing HMRC updates and working with an accountant can help businesses stay ahead of regulatory changes.
Why Businesses Should Take MTD Seriously
Making Tax Digital is not simply a software requirement—it represents a fundamental change in how businesses manage tax reporting.
Businesses that embrace digital accounting often benefit from:
- better financial visibility
- improved accuracy
- more efficient reporting processes
- reduced administrative workload
Although the transition may initially seem challenging, businesses that adopt the system early often find that it simplifies financial management in the long run.
How an Accountant Can Help With MTD Compliance
An experienced accountant can guide businesses through every stage of the Making Tax Digital process.
Professional support may include:
- setting up MTD-compatible software
- organising digital financial records
- preparing VAT returns
- managing quarterly reporting
- ensuring ongoing compliance with HMRC rules
This support allows business owners to focus on running their operations while ensuring their tax reporting remains accurate and compliant.
About the Author
Anwar is an ACCA certified UK accountant and the lead advisor at TaxGuru, a Manchester based accountancy firm with more than 15 years of in house experience.
He oversees all compliance, reporting, and advisory work to ensure every client receives accurate, structured, and fully UK compliant accounting support.
Speak With a Manchester Accountant
If your business needs guidance on Making Tax Digital or support with digital tax reporting, professional advice can help ensure full compliance with HMRC requirements.
For guidance or to discuss your accounting needs, fill the form on our website or visit our Manchester office to speak with our team.
TaxGuru provides structured accounting support, compliance services, and expert advice to businesses across Manchester and the UK.
