If you are starting or running a sole trader business, good bookkeeping is essential. It helps you understand how your business is performing, keeps you compliant with HMRC, and makes the year-end process far smoother.
Many business owners see bookkeeping as a chore. In reality, it is one of the most useful tools you have for running a profitable business.
In this blog, the team at DWilkinson&Company answer some of the most common questions we hear from sole traders about setting up their bookkeeping.
What business records should a sole trader keep?
As a sole trader, you are responsible for keeping accurate records of your business income and expenses. These records form the basis of your accounts and your Self Assessment tax return.
You should keep records of all sales and income received, purchase invoices and receipts for business expenses, bank statements, mileage records if you claim travel expenses, payroll records if you employ staff, and VAT records if you are VAT registered.
Keeping these records organised from the start saves a huge amount of time later. It also helps ensure you do not miss allowable expenses that could reduce your tax bill.
HMRC provides guidance on the types of records businesses should keep.
How long do sole traders need to keep their records?
HMRC requires sole traders to keep their business records for at least 5 years after the 31 January submission deadline of the relevant tax year.
For example, if you submit your 2024/25 tax return by 31 January 2026, you must normally keep the supporting records until at least 31 January 2031.
Keeping digital copies of receipts and invoices is perfectly acceptable, and many accounting systems allow you to store documents securely alongside your transactions.
Further information is available on HMRC’s website.
Should a sole trader have a separate business bank account?
Legally, sole traders are not required to have a separate business bank account. However, in practice, it is one of the simplest ways to keep your bookkeeping organised.
Using a dedicated business account keeps your personal and business spending separate. This makes it much easier to track your income and expenses, reduces the risk of missing transactions, and simplifies the bookkeeping process.
It also gives you a much clearer picture of how your business is performing.
For many sole traders, opening a business account early on avoids a lot of unnecessary administration later.
Should you use cash accounting or traditional accounting?
When preparing your accounts, you can usually choose between cash accounting and traditional (accrual) accounting.
Cash accounting records income and expenses when money actually moves in or out of your bank account. This approach is often simpler and is commonly used by smaller businesses.
Traditional accounting records income on the dates when it is earned and expenses on the dates when they are incurred, regardless of when payment is received or made. This approach provides a more accurate picture of profitability, particularly if you regularly invoice customers or receive supplier credit.
Many smaller sole traders choose cash accounting because it is easier to manage. However, the most suitable method depends on the nature and size of your business.
How often should bookkeeping be done?
Ideally, bookkeeping should be done regularly rather than left until the end of the year.
Updating your records weekly or monthly keeps your financial information accurate and up to date. It also helps you spot potential issues early, such as rising costs, falling margins or cash flow pressures.
Leaving bookkeeping until just before your tax return deadline often leads to rushed work, missing paperwork and unnecessary stress.
Keeping on top of your bookkeeping throughout the year makes the entire process far more manageable.
What bookkeeping software should a sole trader use?
There are several ways to manage your bookkeeping, and the right choice depends on the size and complexity of your business.
Some sole traders start with a simple spreadsheet. This can work well for very small businesses with relatively few transactions, provided the records are accurate and well organised.
As a business grows, many people move to accounting software such as Xero, QuickBooks or FreeAgent. These systems automate many bookkeeping tasks, connect directly to your bank account, and allow you to store digital copies of receipts and invoices.
Accounting software can also make it easier to produce reports that show how your business is performing.
How does bookkeeping link to Making Tax Digital for Income Tax?
Making Tax Digital for Income Tax (MTD for IT) is being introduced by HMRC in stages from April 2026.
Under this system, many self-employed individuals will need to keep digital records and submit quarterly updates to HMRC using compatible software.
This means that maintaining accurate digital bookkeeping will become increasingly important for sole traders.
If your bookkeeping is already up to date and stored in accounting software, complying with MTD will be much easier.
Here you can find more information about MTD for Income Tax.
Why is it important to reconcile your bookkeeping to your bank account?
Bank reconciliation is one of the most important bookkeeping checks.
This process involves comparing the transactions recorded in your bookkeeping system with the transactions shown on your bank statement. The aim is to confirm that the figures match.
Reconciling your records regularly helps identify missing transactions, duplicate entries or errors. It also ensures your financial information is accurate before it is used for tax reporting or business decision making.
Without regular reconciliation, mistakes can easily build up over time.
Conclusion
Setting up good bookkeeping systems early on makes running a sole trader business much easier. Accurate records help you stay compliant with HMRC, understand how your business is performing, and avoid last-minute problems at tax return time.
Simple habits such as keeping receipts organised, updating your records regularly and reconciling your bank account can make a significant difference.
If you would like help setting up your bookkeeping systems or choosing the right software for your business, DWilkinson&Company would be happy to help. Getting the foundations right now can save time, money and stress in the future.
