Complete 2026 Guide
Good record keeping is the foundation of a successful and compliant self-employed business. It helps you claim all your expenses, file an accurate tax return, and avoid penalties. It’s also a legal requirement.
This guide explains everything you need to know about record keeping: what records to keep, how to keep them, how long to keep them, and the consequences of not doing so.
Why Is Record Keeping So Important?
- To Claim Allowable Expenses: Without records, you can’t prove your expenses to HMRC. This could mean you pay more tax than you need to. See our guide: Allowable Expenses.
- To File Your Tax Return: You need accurate financial data to complete your Self Assessment. For a complete list of what you need, see our guide: What Documents Do You Need for Tax Return UK?
- To Avoid Penalties: HMRC can charge penalties for poor record-keeping. In serious cases, they can issue a fine.
- To Prepare for a Compliance Check: If HMRC selects your business for a compliance check, they will ask to see your records. If your records are not up to standard, you could face financial penalties. See our guide: HMRC Compliance Checks.
- To Manage Your Business: Good records help you monitor your business performance, understand your cash flow, and make informed decisions.
What Records Must You Keep?
HMRC requires you to keep records of all business income and expenses.
Income Records
You must keep records of all money you receive for your business. This includes:
- Sales Invoices: You should issue invoices for every sale. Keep a copy for your records.
- Till Receipts: If you use a till, keep the Z-readings or other summaries.
- Bank Statements: These show the money coming into your business account.
- Cash Receipts: If you accept cash, keep a record of the date, amount, and who it came from.
- Payment Information: Details of any payments received through online systems like PayPal or Stripe.
Expense Records
You must keep records of all money you spend on your business. This includes:
- Receipts: For every expense over £10, you should have a receipt from the supplier. For smaller expenses, you can keep a note.
- Invoices: Invoices for larger purchases, such as equipment or services.
- Bank Statements: These show money leaving your business account.
- Mileage Logs: A detailed record of business journeys, including date, destination, purpose, and mileage. This is critical for claiming mileage. See our guide: Mileage Claims.
Other Records
Depending on your business, you may also need to keep:
- VAT Records: If you are VAT-registered, keep copies of all VAT invoices and records of your VAT calculations. See our guide: VAT for Sole Traders.
- Payroll Records: If you employ staff, you need to keep PAYE records.
- Stock Records: If you sell physical goods, keep records of stock purchases and sales.
How to Keep Your Records
There are two main ways to keep records: paper-based or digital.
Paper-Based Records
This method involves keeping physical folders, files, and boxes of receipts. You can use:
- Expense Folders: Separate folders for different expense categories (e.g., Travel, Office, Marketing).
- Income Folders: A folder for all sales invoices.
- Spreadsheets: You can use a spreadsheet to summarise your income and expenses.
Pros: Simple, low-tech.
Cons: Takes up physical space, harder to search and analyse, and can be easily lost or damaged.
Digital Records (Recommended)
Using accounting software or digital tools is the modern and recommended way to keep records. This is especially important with the move to Making Tax Digital.
- Accounting Software: Software like Xero, QuickBooks, or FreeAgent can automate much of the process. They can connect to your bank and automatically import transactions. Our guide on Accounting Software compares the best options.
- Spreadsheets: You can use a spreadsheet program like Excel or Google Sheets. It’s more flexible than paper but can be time-consuming to set up and maintain.
- Scanning Receipts: Use a mobile scanning app to digitise your receipts and store them in the cloud. This ensures you always have a backup.
The Cash Basis vs Traditional Accounting
The record-keeping requirements differ slightly depending on which accounting method you use. Our guide on Cash Basis vs Traditional Accounting explains the differences.
How Long Must You Keep Records?
You must keep your business records for at least 5 years from the 31 January filing deadline of the tax year they relate to. For example, for the 2025-26 tax year (filing deadline 31 January 2027), you must keep records until at least 31 January 2032.
If you are VAT-registered, you must keep your VAT records for at least 6 years.
The Consequences of Poor Record Keeping
- Penalties: HMRC can issue penalties of up to £3,000 for inadequate record-keeping.
- Rejected Expenses: If you can’t prove an expense, HMRC will disallow it, increasing your tax bill.
- Stress: Poor records make filing your tax return a stressful, last-minute scramble.
- Compliance Check: If your records are disorganised, HMRC may take a more punitive approach during a compliance check.
Free Record-Keeping Template
To help you get started, we’ve created a simple record-keeping template. It helps you track your income, expenses, and mileage in one place.
📥 Download Our Free Record-Keeping Template →
Contact us to request your free template.
How We Can Help
Keeping accurate records can be time-consuming, but it’s essential. Our team of ACCA-qualified accountants can:
- Help you set up a record-keeping system.
- Review your records to ensure they are compliant.
- Use your records to prepare your accounts and tax return.
- Provide ongoing support and advice.
Let us take the hassle out of record keeping.
📚 Related Guides
• Self-Employed Allowable Expenses
• Mileage Claims
• VAT for Sole Traders
• Cash Basis vs Traditional Accounting
• Accounting Software for Sole Traders
• Self-Employed Tax Return Checklist
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