How to Change From Old Cash Basis to Earnings Basis

Last updated: 28 February 2026

Introduction: A Critical Decision for Barristers

In the legal profession, particularly among self-employed barristers, the choice of accounting basis can profoundly impact tax liability and financial management. Since the tax year 2013/14, barristers in the UK have had the option to adopt the cash basis for tax accounting. While this was a welcome development, it also brought about the question: when in their career and by what means should a barrister transition from a cash basis to an earnings basis?

What Is the Cash Basis?

The cash basis is a simplified accounting method where you only declare the money you have received and the expenses you have paid within the tax year. This method is particularly popular among self-employed individuals and small businesses, including barristers.

What Is the Earnings Basis?

Contrastingly, the earnings basis, or accruals basis, records income and expenses as they are earned or incurred, not necessarily when the money changes hands. This method adheres more closely to Generally Accepted Accounting Principles (GAAP).

Why This Matters

The decision to switch from the cash basis to the earnings basis is not one to be taken lightly. It involves considerations related to turnover, debtors, VAT registration, and even the types of cases a barrister takes on. Furthermore, HMRC imposes certain transitional rules and adjustments that must be meticulously followed.

In this article, we will walk you through the process, the eligibility criteria, and the transitional adjustments you need to be aware of when considering such a change. Whether you are new to the profession or looking to optimise your tax position, this guide is for you.

Understanding the Mechanics: Cash Basis vs Earnings Basis

Cash Basis: The Simplicity Factor

In the cash basis, the tax treatment is straightforward. Income is only recognised when it is received, and expenses are deductible when they are paid. For barristers, this could mean that professional fees are only considered as income when they are actually received from clients or solicitors. On the expenditure side, costs like chamber fees or legal research expenses become deductible when they are actually paid.

Limitations of the Cash Basis

However, the cash basis has limitations. For instance, if your turnover exceeds £300,000, you must leave the cash basis and switch to the earnings basis. Additionally, the cash basis does not allow for a detailed view of debtors and creditors, which could be crucial for barristers dealing with complex cases that span multiple accounting periods.

Earnings Basis: The Comprehensive View

The earnings basis provides a more holistic view of a barrister’s financial position. Under this method, income is recorded as it is earned. So, if you have provided legal services but have not been paid yet, this would still be recognised as income. Similarly, if you have incurred expenses but have not paid them, they are still deductible.

When Should Barristers Consider the Earnings Basis?

The earnings basis is generally more suitable for barristers with a high volume of work in progress or those dealing with complex financial transactions. It is especially beneficial if you are working on cases that are likely to extend over a long period or if you often have significant amounts of income that are yet to be received.

Transitional Adjustment: Cash Basis to Earnings Basis

When you switch from the cash basis to the earnings basis, a transitional adjustment will occur to account for income and expenditure that may be double-counted or omitted. This adjustment income is usually spread over six years to ease the tax burden. Understanding how to calculate this adjustment is crucial for barristers to avoid any tax complications.

Legal and Regulatory Considerations: What Barristers Need to Know

HMRC Guidelines 

When it comes to tax and accounting, it is crucial to stay compliant with the guidelines set forth by HMRC. HMRC provides extensive guidance on eligibility criteria for using the cash basis, which barristers should carefully review.

When is it Mandatory to Leave the Cash Basis?

For barristers, if your turnover exceeds £300,000 in an accounting period, you must leave the cash basis for the earnings basis when preparing the next set of accounts. Failing to do so could result in penalties and additional tax charges.

VAT Registration and Council Tax

VAT registration also plays a role in your accounting decisions. If you are VAT registered, you will need to account for it on a VAT-inclusive basis if you choose the cash basis. Similarly, barristers need to consider the impact of council tax on their overall taxable profits, as it can be deducted as an expense under certain conditions.

Legal Aid and Special Cases

In cases involving Legal Aid, barristers must be particularly cautious. Legal Aid payments fall under special taxation rules, and the accounting basis you choose can have implications on how you report this income. Always consult with an accountancy expert like Jack Ross familiar with the legal sector to ensure compliance.

Navigating Transitional Adjustments: A Guide for Barristers

What is Transitional Adjustment?

When you switch from the cash basis to the earnings basis or vice versa, there may be transitional adjustments to consider. This adjustment income is essentially the difference between the amounts recognised under the old and new bases. Transitional adjustment is crucial for avoiding double-counting or omission of any income or expenditure.

How to Calculate Adjustment Income

Adjustment income would typically involve several accounting entries and could spread over six years or more, depending on the specific circumstances. Barristers can elect to accelerate the charge if they prefer, which would require expert consultation to ensure it aligns with your tax planning strategy.

Debtors and Creditors

One of the most significant parts of transitional adjustment involves reconciling debtors and creditors. Amounts owed to the business, or amounts that customers owe, must be accurately reflected to avoid any tax discrepancies.

The Role of Capital Allowances

Capital allowances play a crucial part in transitional adjustments. Apart from cars, any residual unrelieved capital allowances pools may be deducted as an expense in the first year under the new basis. This requires careful calculation to ensure that you are not missing out on any tax relief.

How Making Tax Digital Changes Cash Basis Reporting

From April 2026, Making Tax Digital for Income Tax (MTD for ITSA) requires self-employed barristers earning over £50,000 to file quarterly digital updates with HMRC. This fundamentally changes how your chosen accounting basis interacts with your reporting obligations.

Under MTD, the cash basis remains the default method for most barristers with turnover under £150,000. You do not need to switch to the earnings basis simply because MTD is being introduced. However, the mechanics of reporting change significantly: where previously you submitted a single Self Assessment return after the tax year ended, you will now submit four quarterly updates plus a final declaration.

Under MTD with cash basis accounting, each quarterly update captures a snapshot of your cash position for that period – income received and expenses paid within the quarter. This does not change what you can claim as a deductible expense. It changes when you report it. If you are already comfortable with cash basis principles, the transition to MTD quarterly reporting should be manageable with the right software and professional support.

Quarterly Reporting Under Cash Basis: Timing of Fee Receipts

The timing of fee receipts is where cash basis reporting under MTD becomes particularly nuanced for barristers. Unlike most self-employed professionals, barristers routinely receive fees weeks or months after the work is completed, often through their clerks.

Under cash basis with MTD quarterly updates, the critical date is when the fee is received, not when the work was performed. A brief fee for work done in May but paid in August falls into Q2 (July–October), not Q1 (April–June). This distinction matters because each quarterly update must accurately reflect the cash that moved during that specific period.

For clerk-collected fees, the relevant date is when your clerk receives the fee from the instructing solicitor – not when the clerk subsequently pays you. This is a common area of confusion and one that HMRC may scrutinise. Your clerk’s fee statements serve as essential evidence for quarterly filing, so ensure you receive these promptly at the end of each quarter.

Chambers rent deducted at source follows the same principle: it is deductible on the date the clerk deducts it, which typically coincides with the fee receipt date. Keep clear records of the gross fee, the chambers rent deduction, and the clerk’s commission for each payment received.

Worked Example: Cash Basis vs Accruals Under MTD (Q1 2026/27)

To illustrate the practical difference, consider a barrister who works on three cases during April–June 2026 (Q1 of the 2026/27 tax year):

Expenses in Q1:

• Chambers rent deducted from Cases A and C: £2,600 (20% of £13,000)
• Clerk’s fees on Cases A and C: £1,040 (8% of £13,000)
• Travel to court: £380

Cash basis Q1 profit: (£8,000 + £5,000) − £2,600 − £1,040 − £380 = £8,980

Accruals Q1 profit: (£8,000 + £12,000 + £5,000) − £2,600 − £1,040 − £380 = £20,980

Under accruals, Case B’s £12,000 is included because the work was performed in Q1, even though the fee has not yet been received. The cash basis gives a more accurate picture of actual cash flow during the quarter, which is precisely why HMRC made it the default for qualifying taxpayers.

Which Basis for MTD? A Decision Framework

With MTD for Income Tax approaching, barristers should assess whether their current accounting basis is still appropriate. Cash basis is the default and, for the majority of barristers, the right choice. However, the decision is not automatic – consider the following factors:

Cash basis is likely right if you:

• Have turnover under £150,000
• Want simpler quarterly updates that match your actual bank transactions
• Prefer straightforward reconciliation between your records and your bank account
• Do not carry significant work-in-progress balances at quarter end

Consider accruals if you:

• Have turnover above £150,000 (cash basis unavailable above this threshold under MTD)
• Routinely carry substantial work-in-progress at period end
• Have complex financial arrangements such as partnerships or multiple income streams
• Need to claim interest on loans used for business purposes exceeding £500 per year

Cash basis under MTD has clear advantages: quarterly updates are simpler to prepare, figures align with bank statements, and there is no need to value work-in-progress. The main disadvantage is that it does not capture unpaid fees, which could understate income in busy quarters where payments are delayed.

If you are unsure which basis suits your practice, contact Jack Ross for a free review of your position before MTD obligations begin.

This concludes the article on how to change from the old cash basis to the earnings basis for barristers. Transitioning between accounting bases is a complex process that requires a thorough understanding of tax law, HMRC guidelines, and accounting principles.

Consult An Accountant – Get in Touch with Jack Ross

Jack Ross Chartered Accountants has decades of experience in dealing with the finances of barristers. If you are thinking of changing from the cash basis to the earnings basis, or just need professional advice on your finances, get in touch.