MTD Digital Record-Keeping for Sole Traders & Landlords

Introduction to MTD ITSA Digital Record-Keeping

Making Tax Digital for Income Tax Self Assessment, or MTD ITSA, represents a fundamental shift in how sole traders and landlords manage their tax affairs in the UK. Designed to modernise the tax system, MTD ITSA requires affected businesses and individuals to keep digital records of their income and expenses and to submit quarterly updates to HMRC using MTD-compliant software. This move away from traditional annual tax returns aims to reduce errors, provide a more real-time view of tax liabilities, and simplify the tax process for many.

For sole traders and landlords, understanding the precise requirements for digital record-keeping is paramount. The core principle is that all relevant business and property transactions must be recorded digitally from the outset. This guide provides a comprehensive breakdown of what information must be captured, how it should be categorised, and the implications for compliance, ensuring you are well-prepared for the phased rollout of MTD ITSA.

Understanding Making Tax Digital for Income Tax Self Assessment (ITSA)

MTD ITSA is HMRC's initiative to digitalise income tax. It replaces the traditional annual self assessment tax return with a system of quarterly digital updates and an End of Period Statement, culminating in a Final Declaration. The objective is to make tax administration more efficient, reduce common errors, and provide taxpayers with a clearer, more current picture of their tax position.

Who Does MTD ITSA Apply To?

MTD ITSA is primarily for:

Sole Traders: Individuals who run their own business.
Landlords: Individuals who receive income from UK property.
General Partnerships: Partnerships with individual partners.

Limited companies are not included in MTD ITSA, as they have separate Corporation Tax obligations.

Phased Rollout Dates and Income Thresholds

MTD ITSA is being introduced gradually, based on the gross income of businesses and landlords. It is crucial to understand these thresholds to determine when you will be mandated to comply. The income threshold refers to your total gross income from all self-employment businesses and property income combined in a tax year.

Income threshold	Effective date	Applies to
£50,000 or more	April 2026	Sole Traders, Landlords
£30,000 or more	April 2027	Sole Traders, Landlords
General Partnerships	To be confirmed	Partnerships

What is "Gross Income"? For MTD ITSA purposes, gross income is the total amount of money your business or property generates before any expenses or allowances are deducted. If your total gross income from all self-employment and property sources exceeds the threshold, you will need to comply.

The Foundation: MTD Digital Record-Keeping Mandate

At the heart of MTD ITSA is the requirement to keep digital records. This is not simply about typing information into a computer; it means that all relevant business and property transactions must be recorded and stored digitally from the point of origin. This fundamental change ensures that data integrity is maintained throughout the tax reporting process.

What HMRC Means by "Digital Records"

HMRC defines digital records as information that has been entered, stored, and maintained electronically within MTD-compliant software. This explicitly rules out traditional paper-based accounting books and ledgers as the primary record-keeping method for mandated businesses and landlords. While physical documents like receipts still need to be kept for proof, the data derived from them must reside in a digital format.

The use of spreadsheets is permitted, but only if they are "digitally linked" to an MTD-compatible software that can extract the data and submit it to HMRC. Simply copying and pasting data from a spreadsheet into another program is not considered a digital link and is non-compliant.

The Core Digital Data Points for Every Transaction

The latest MTD explanations spell out that digital records must capture at least three critical pieces of information for each transaction:

Date of transaction
Amount of transaction
Tax category of transaction

While these three are the absolute minimum, comprehensive MTD-compliant software like AccountsOS will capture additional details to ensure full compliance, facilitate accurate reporting, and provide better insights for the user. These additional points often include:

Type of income or expense
Invoice or receipt reference (where applicable)
Business vs. personal split (where applicable)
VAT details (if VAT registered)

Prohibition of Manual Record-Keeping

Once mandated for MTD ITSA, you cannot revert to purely manual methods. This means:

No more relying solely on paper receipt shoeboxes.
No manual entry of aggregated totals into a final tax return.
No 'copy and paste' or manual re-keying of data between different digital systems without a proper digital link.

The entire process, from recording individual transactions to submitting quarterly summaries, must be digitally enabled and connected. This is designed to minimise human error and ensure the integrity of the data submitted to HMRC.

Detailed Record-Keeping Requirements for Income

Accurately recording all sources of income is fundamental to MTD ITSA. Whether you are a sole trader selling goods or services, or a landlord collecting rent, the digital records must clearly show the gross amount received and its nature.

Sole Trader Income Records

For sole traders, income typically comes from sales of goods or services. Each instance of income must be recorded with sufficient detail.

Key Data Points for Sole Trader Income:

Date of Transaction: The date the income was received or the invoice was issued, depending on your accounting basis.
Amount: The gross amount of income received before any deductions.
Type of Income: A classification of the income, for example, 'Sales of Goods', 'Sales of Services', 'Consultancy Fees', 'Commissions'.
Customer Details: While not strictly mandatory for MTD, recording customer names or invoice numbers is highly recommended for good practice and audit trails.
Invoice Reference: If an invoice was issued, its unique reference number should be linked to the income record.
VAT Amount: If you are VAT registered, the VAT element of the income must be clearly separated.

Cash Basis vs. Accruals Basis

Your chosen accounting basis impacts how you record the 'date of transaction':

Cash Basis: Income is recorded when it is actually received into your bank account or as cash. Most small businesses use this for simplicity.
Accruals Basis: Income is recorded when it is earned, typically when an invoice is issued, regardless of when the payment is received.

It is essential to be consistent with your chosen method. AccountsOS allows you to select your accounting basis and ensures records are kept accordingly.

Worked Example: Recording Sole Trader Income

Scenario: A freelance graphic designer completes a logo design for a client.

Data Point	Details to Record
Date of Transaction	2026-07-15 (date invoice issued/paid)
Amount	£850.00
Tax Category	Sales - Services
Invoice Reference	INV-2026-00123
Customer (Optional)	ABC Marketing Ltd

Property Income Records for Landlords

Landlords must also keep digital records of all rental income received from their UK properties. This includes rent, service charges, and any other income derived from the property.

Key Data Points for Property Income:

Date of Receipt: The date the rental payment was received.
Amount: The gross amount of rent or other property income received.
Property Address: The specific address of the property generating the income.
Tenant Details: Recommended for clarity and managing tenancies.
Type of Income: For example, 'Rental Income', 'Service Charge', 'Ground Rent'.
Jointly Owned Property: If the property is jointly owned, the records should reflect the landlord's share of the income.

Rent-a-Room Scheme Considerations

If you participate in the Rent-a-Room scheme, you might choose to declare your gross income and then claim the Rent-a-Room allowance. Your digital records must still capture the full gross income received from letting furnished rooms in your home.

Worked Example: Recording Rental Income

Scenario: A landlord receives monthly rent for a property.

Data Point	Details to Record
Date of Transaction	2026-08-01 (date rent received)
Amount	£1,200.00
Tax Category	Rental Income
Property Address	Flat 1, 10 High Street, London, SW1A 0AA
Tenant (Optional)	J. Smith

Detailed Record-Keeping Requirements for Expenses

Just as with income, every business or property expense must be digitally recorded. This is crucial for accurately calculating your taxable profits and ensuring you claim all allowable deductions.

General Principles for Expense Records

For each expense, your MTD-compliant software must capture:

Key Data Points for All Expenses:

Date of Transaction: The date the expense was incurred or paid, consistent with your accounting basis.
Amount: The gross amount of the expense.
Tax Category: A clear classification of the expense, linking it to HMRC's allowable categories.
Supplier Details: Recommended for audit trails, e.g., supplier name, invoice number.
Proof of Expense: While not part of the digital record submitted to HMRC, digital copies of receipts or invoices should be kept and ideally linked to the transaction in your software.
Business vs. Personal Use: If an expense has a personal element, the business portion must be clearly identified.
VAT Amount: If VAT registered, the VAT element must be separated.

Common Sole Trader Expenses

Sole traders incur a wide range of expenses. Accurate categorisation is vital.

Examples of Sole Trader Expense Categories:

Travel and Subsistence: Fuel, public transport, accommodation, meals on business trips. Distinguish between simplified mileage rates and actual costs.
Office Costs: Rent for business premises, utilities, stationery, postage, cleaning, repairs to office equipment.
Professional Fees: Accountant fees, legal advice, consultants.
Marketing and Advertising: Website development, social media ads, print media, networking events.
Training and Development: Courses directly related to your business.
Finance Costs: Bank charges, interest on business loans (not personal loans).
Subscriptions: Professional body memberships, trade publications, software subscriptions (like AccountsOS!).
Capital Allowances: For larger purchases like vehicles or machinery, these are not directly recorded as expenses but as capital assets, with allowances claimed over time. Your software should help manage this.

Worked Example: Recording a Business Expense

Scenario: A sole trader purchases new office stationery.

Data Point	Details to Record
Date of Transaction	2026-07-20
Amount	£45.00
Tax Category	Stationery and Office Supplies
Supplier	Office Mart
Receipt (Digital)	Attached PDF of receipt

Common Landlord Expenses

Landlords can deduct various expenses from their rental income. Accurate record-keeping is vital here, especially with ongoing changes to mortgage interest relief.

Examples of Landlord Expense Categories:

Repairs and Maintenance: Costs for fixing issues at the property. This does not include improvements, which are capital expenditure.
Agent Fees: Fees paid to letting agents for finding tenants, managing the property, etc.
Legal and Professional Fees: Costs for drawing up tenancy agreements, eviction proceedings, accountant services for property income.
Insurance: Landlord insurance, building insurance.
Utilities and Council Tax: If the landlord pays these directly for the property.
Mortgage Interest: While not fully deductible against rental income for residential properties, the full interest amount must still be recorded as a finance cost. A basic rate tax reduction is applied instead.
Ground Rent and Service Charges: If applicable to leasehold properties.
Travel Expenses: Costs of travelling to and from the rental property for inspections or repairs.

Worked Example: Recording a Property Expense

Scenario: A landlord pays for a plumber to fix a leak at their rental property.

Data Point	Details to Record
Date of Transaction	2026-08-10
Amount	£180.00
Tax Category	Repairs and Maintenance - Property
Supplier	Local Plumbers Ltd
Property Address	Flat 1, 10 High Street, London, SW1A 0AA

Tax Categorisation and Classification

Beyond simply recording the date and amount, the 'tax category' is a critical element of MTD digital record-keeping. HMRC requires that income and expenses are classified into specific categories to enable accurate aggregation for quarterly updates and the End of Period Statement.

The Importance of Correct Categorisation

Correct categorisation ensures that:

Your quarterly updates accurately reflect your business or property performance.
You claim all allowable expenses and do not accidentally claim disallowable ones.
HMRC receives consistent, categorised data, which can help in identifying potential discrepancies.
Your End of Period Statement can be completed with minimal adjustments.

Misclassifying transactions can lead to incorrect tax calculations, potentially resulting in underpayment or overpayment of tax, and could attract HMRC scrutiny or penalties.

Standard vs. Custom Categories

MTD-compliant software typically provides a set of standard tax categories that align with HMRC's reporting requirements for Self Assessment. These are designed to cover the most common types of income and expenses for sole traders and landlords.

While these standard categories are usually sufficient, some software may allow for custom categories. If you use custom categories, it is imperative that these can be mapped accurately to HMRC's required categories when preparing your quarterly updates and End of Period Statement. AccountsOS automates this mapping to ensure compliance.

How Software Assists in Categorisation

Modern MTD-compliant accounting software plays a crucial role in simplifying categorisation:

Automated Bank Feeds: Transactions imported directly from your bank account can often be automatically suggested categories based on previous transactions or supplier names.
Machine Learning: Advanced software uses AI and machine learning to learn your categorisation habits, making future suggestions increasingly accurate.
Rule-Based Categorisation: You can set up rules for recurring transactions, e.g., 'all payments to "Stationery Supplies Ltd" are "Stationery and Office Supplies"'.
Clear Interface: A well-designed interface makes it easy to review, select, and adjust categories for each transaction.

Despite automation, it is the user's responsibility to review and confirm the accuracy of categorisations. Regular checks are a key part of maintaining compliant digital records.

Digital Links and Data Transfer for MTD ITSA

A critical aspect of MTD for Income Tax Self Assessment is the concept of 'digital links'. HMRC's rules stipulate that once data has been recorded digitally, any transfer or modification of that data must also be digital. This is to ensure the integrity and accuracy of the information submitted.

What Constitutes a "Digital Link"?

A digital link refers to the electronic transfer of data between different software programs, products, or applications without any manual input or intervention. Examples of digital links include:

Transferring data via an API (Application Programming Interface) between two software systems.
Importing data using a CSV file from one software into another, where the import process is automated and does not involve manual re-typing or copy-pasting.
Using 'bridging software' that can read data from a spreadsheet and digitally submit it to HMRC, without manual manipulation of the data within the bridging software itself.

The key takeaway is that once a transaction is recorded in digital form, it should remain digital until it reaches HMRC.

The Prohibition of Copy and Paste

HMRC explicitly prohibits the use of 'copy and paste' or manual re-keying of data as a means of transferring information between different digital records or from records to submission software. This is because manual intervention introduces a significant risk of human error, which MTD aims to reduce.

For example, if you keep your records in a spreadsheet, you cannot manually copy totals from that spreadsheet into a separate bridging software for submission. The bridging software must be able to read the data directly from the spreadsheet via a digital link.

Bridging Software vs. End-to-End Compliant Software

When choosing your MTD solution, you will encounter two main approaches:

Bridging Software: This is a piece of software that can take data from an existing digital record, such as a spreadsheet, and format it for submission to HMRC via the MTD API. It 'bridges' the gap between your existing digital records and HMRC. While this can be a temporary solution, it still requires your initial records to be digitally maintained and the link to the bridging software to be digital.
End-to-End Compliant Software: This is a comprehensive accounting software package, like AccountsOS, that handles all aspects of MTD ITSA. It allows you to record transactions digitally, categorise them, generate quarterly summaries, and submit them directly to HMRC, all within a single system. This is generally the most robust and error-resistant solution.

For most sole traders and landlords, an end-to-end compliant software solution simplifies the process significantly by eliminating the need to manage multiple systems and ensure digital links between them.

Record Retention and Access

Maintaining accurate digital records is only one part of the MTD ITSA requirement. You must also retain these records for a specified period and be able to provide them to HMRC upon request.

How Long Must Records Be Kept?

HMRC requires sole traders and landlords to keep their business and property records for a minimum of 5 years after the 31 January submission deadline for the relevant tax year. For example, for the tax year 2026-2027, which ends on 5 April 2027, the records must be kept until at least 31 January 2033.

It is prudent to keep records for longer if there is any ongoing dispute or investigation with HMRC.

Digital vs. Physical Storage

While your primary accounting records must be digital for MTD, you should also retain supporting evidence, such as physical receipts, invoices, bank statements, and contracts. These can be kept in their original physical form or as digital copies, provided they are legible and accessible.

For digital records, ensure they are stored securely, ideally with backups, to prevent loss due to technical failures or cyber incidents. MTD-compliant software often includes secure cloud storage for your records.

HMRC's Right to Inspect Records

HMRC retains the right to inspect your business and property records at any time within the retention period. This means your digital records must be readily accessible and understandable. Compliant software should allow you to easily export your data in a clear, structured format if required for an HMRC inquiry. Failing to provide adequate records upon request can lead to penalties.

Making Quarterly Updates and End of Period Statements

The digital record-keeping forms the basis for the periodic submissions required by MTD ITSA. Instead of one annual tax return, you will submit four quarterly updates, an End of Period Statement, and a Final Declaration.

The MTD Reporting Cycle

The MTD ITSA reporting cycle follows the tax year, which runs from 6 April to 5 April the following year. The quarterly periods are fixed:

Quarter 1: 6 April to 5 July (submission by 5 August)
Quarter 2: 6 July to 5 October (submission by 5 November)
Quarter 3: 6 October to 5 January (submission by 5 February)
Quarter 4: 6 January to 5 April (submission by 5 May)

Each quarterly update must be submitted to HMRC within one month of the end of the quarter.

Content of Quarterly Updates

Each quarterly update provides HMRC with a summary of your business or property income and expenses for that period, derived directly from your digital records. These are not full tax calculations but aggregated totals by category. For example, your software will total all transactions categorised as 'Sales - Services' for the quarter and submit that single figure.

The quarterly updates give HMRC an early indication of your income and expenses, helping them to estimate your tax liability throughout the year. For you, it provides a more regular check on your financial performance.

End of Period Statement (EOPS) and Final Declaration

After the four quarterly updates, you will need to submit an End of Period Statement (EOPS) for each source of business or property income. The EOPS allows you to make any necessary accounting adjustments, such as:

Adjustments for capital allowances.
Stock adjustments.
Private use adjustments (e.g., for motor expenses).
Accounting basis adjustments (e.g., if you use accruals but report on cash basis).
Corrections to previously submitted quarterly updates.

Finally, a single Final Declaration will be submitted, which combines all your income sources, applies any personal allowances and reliefs, and calculates your final tax liability for the year. This replaces the current Self Assessment tax return.

MTD-compliant software, such as AccountsOS, is designed to guide you through these steps, from recording individual transactions to generating and submitting all required statements to HMRC.

Exemptions and Special Cases for MTD ITSA

While MTD ITSA is becoming mandatory for many sole traders and landlords, certain individuals and businesses may be exempt or have special considerations. It is important to understand these exceptions.

Exemptions for Digital Exclusion

HMRC recognises that not everyone can engage with digital services. Exemptions may be granted for individuals who are 'digitally excluded', meaning it is not reasonably practicable for them to use digital tools to keep records or make submissions. This can include reasons such as:

Age.
Disability.
Remote geographical location with no internet access.
Religious beliefs that prevent the use of computers or the internet.

You must apply to HMRC for a digital exclusion exemption. It is not automatic.

Other Special Circumstances

Other situations that may lead to exemptions or alternative arrangements include:

Insolvency: Individuals who are bankrupt or in an insolvency process may have different reporting requirements.
Disability: Specific disabilities may make it difficult to comply with digital requirements.
Falling Below Threshold: If your gross income from all businesses and property falls below the MTD threshold in a given tax year, you may no longer be mandated for MTD ITSA. However, if you have already signed up, you may need to formally withdraw from the scheme.

It is always advisable to contact HMRC or a tax professional if you believe you qualify for an exemption or if your circumstances change.

Penalties for Non-Compliance with MTD ITSA

HMRC has established a new penalty system for MTD ITSA non-compliance, which differs from the previous Self Assessment penalties. These penalties apply for late submissions and for failures in keeping adequate digital records.

Points-Based Penalty System for Late Submissions

The penalty system for late MTD submissions is points-based. You will receive a point for each missed quarterly submission deadline. Once you accumulate a certain number of points, a fixed financial penalty is issued.

Scenario	Penalty
First late submission	1 penalty point
Second late submission	1 penalty point
Third late submission	1 penalty point
Fourth late submission (and subsequent)	£200 fixed penalty

The threshold for receiving a fixed penalty varies depending on how frequently you are required to submit:

Annual submissions: 2 points lead to a penalty.
Quarterly submissions: 4 points lead to a penalty.
Monthly submissions: 5 points lead to a penalty.

Once you reach the penalty threshold, you receive a £200 penalty. You will receive further £200 penalties for every subsequent late submission. Points expire after 24 months, provided you have a period of compliance.

Penalties for Failure to Keep Adequate Records

Beyond late submissions, HMRC can also levy penalties if you fail to keep adequate digital records as required by MTD ITSA. This includes:

Not keeping records digitally.
Not retaining records for the required period.
Failing to provide records to HMRC upon request.
Using non-digitally linked systems for data transfer.

Scenario	Penalty
Failure to keep adequate records	Up to £3,000

These penalties can range from £50 to £3,000, depending on the severity and duration of the failure.

Penalties for Inaccuracy

HMRC also has powers to issue penalties for inaccuracies in your submissions. These penalties are based on the behaviour that led to the inaccuracy, ranging from 'careless' to 'deliberate and concealed', with penalty percentages varying accordingly. Accurate digital record-keeping is your best defence against such penalties.

Interest on Late Payments: In addition to penalties, HMRC will charge interest on any tax paid late. This applies from the original payment due date until the tax is paid in full.

Choosing MTD Compliant Software: The AccountsOS Advantage

Selecting the right MTD-compliant software is the most crucial step for sole traders and landlords preparing for Making Tax Digital for Income Tax Self Assessment. The software you choose will be the foundation of your digital record-keeping and your primary tool for interacting with HMRC under the new rules.

What to Look For in MTD Software

When evaluating MTD-compliant accounting software, consider the following key features:

HMRC Recognition: Ensure the software is on HMRC's list of MTD-compatible software for Income Tax.
Ease of Use: An intuitive interface is vital, especially for those new to digital accounting.
Comprehensive Record-Keeping: It must capture all required data points for income and expenses as detailed in this guide.
Automated Categorisation: Features like bank feeds and smart categorisation save significant time and reduce errors.
Digital Links: The software must maintain digital links throughout the data journey, from transaction entry to submission.
Quarterly Update & EOPS Generation: Ability to automatically generate and submit your quarterly summaries and End of Period Statements directly to HMRC.
Adjustments & Corrections: Functionality to easily make adjustments and correct errors.
Secure Data Storage: Cloud-based, secure storage with robust backup protocols.
Reporting Capabilities: Clear financial reports to help you understand your business or property performance.
Customer Support: Access to reliable support in case you encounter issues.

How AccountsOS Meets All MTD Requirements

AccountsOS is specifically designed to simplify MTD ITSA compliance for sole traders and landlords, offering an end-to-end solution that integrates all aspects of digital record-keeping and submission.

Automated Digital Record Keeping

Easily input income and expenses, ensuring all required MTD data points are captured digitally.

Smart Tax Categorisation

AI-powered categorisation helps you correctly classify transactions for MTD ITSA compliance.

Real-Time MTD Compliance Check

Monitor your records for MTD readiness and receive alerts for missing information.

Seamless Quarterly Updates

Generate and submit your MTD quarterly income and expense summaries directly to HMRC.

Benefits for Sole Traders and Landlords

By choosing AccountsOS, you gain:

Reduced Stress: Confidence that your records are MTD compliant and your submissions are accurate.
Time Savings: Automation of data entry and categorisation frees up valuable time.
Fewer Errors: Digital links and smart features minimise manual mistakes.
Real-Time Insights: A clear, up-to-date view of your financial position throughout the year.
Avoid Penalties: Timely reminders and accurate submissions help you stay on HMRC's good side.
Simplified Tax Filing: The entire process, from daily transactions to final declaration, is streamlined.

AccountsOS empowers you to manage your MTD ITSA obligations efficiently, allowing you to focus more on your business or property portfolio and less on complex tax compliance.

Frequently asked questions

Do I have to use MTD-compliant software?

Yes, HMRC requires all businesses and landlords mandated for MTD for Income Tax Self Assessment to use MTD-compatible software to keep digital records and submit updates.

What if my business income is below the MTD threshold?

If your gross income from all businesses and property combined is below the relevant MTD threshold (£50,000 from April 2026, £30,000 from April 2027), you are not currently mandated to join MTD ITSA.

Can I still use a spreadsheet for my records?

You can use a spreadsheet, but it must be 'digitally linked' to MTD-compliant software or bridging software that can submit the required data to HMRC. Manual data transfer, like copy and paste, is not permitted.

What is a 'digital link'?

A digital link means data can be transferred electronically between software programs, products, or applications without manual intervention. This ensures data integrity for MTD submissions.

How long do I need to keep my digital records?

You must keep your business records for at least 5 years after the 31 January submission deadline for the relevant tax year. Digital records should be stored securely and be easily accessible.

What happens if I make a mistake in my records?

MTD software allows you to correct errors in your digital records. If an error affects a previously submitted quarterly update, you can usually make an adjustment in a subsequent update or in your End of Period Statement.

Are there any exemptions from MTD for Income Tax?

Limited exemptions exist for those who are 'digitally excluded' due to age, disability, remote location, or religious beliefs that prevent them from using digital tools. You must apply to HMRC for an exemption.

Does MTD apply to my limited company?

No, MTD for Income Tax Self Assessment applies to sole traders, landlords, and general partnerships. Limited companies follow MTD for VAT rules if applicable, but Corporation Tax is separate from MTD ITSA.