Everything you need to know about sole practitioner tax, self-assessment, Making Tax Digital compliance, allowable expenses, and tax planning for UK solicitors.
Sole Practitioner Tax
Sole practitioner solicitors operate as self-employed individuals, paying Income Tax and National Insurance on their practice profits. Unlike partnerships or companies, you're personally responsible for all tax obligations and benefit directly from all profits after tax.
Your tax position depends on practice profits, allowable expenses, pension contributions, and other income sources. Effective tax planning can significantly reduce your tax burden while maintaining full compliance with HMRC requirements.
Sole practitioners must complete annual self-assessment tax returns (SA100) showing practice income, allowable expenses, and tax calculations. Key requirements include:
From April 2026, sole practitioners with income over £50,000 must use Making Tax Digital compatible software and submit quarterly updates to HMRC. This represents a significant change to how you manage practice finances and report tax information.
MTD compliance requires digital record-keeping, compatible accounting software, and quarterly submissions showing income and expenses. Early preparation ensures smooth transition and avoids penalties for non-compliance.
Sole practitioners can claim tax relief on business expenses incurred wholly and exclusively for practice purposes. Common allowable expenses include:
Effective tax planning for sole practitioners involves:
The library
4 guides for UK solicitors and law firms.
Making Tax Digital affects UK solicitors through two regimes: MTD for VAT, which already applies to every VAT-registered firm, and MTD for Income Tax, which phases in from April 2026 by qualifying income. This guide explains who is in scope, when, the digital record and quarterly update rules, and how MTD sits alongside the SRA Accounts Rules.
8 min read
A current, accurate guide to tax for sole practitioner solicitors: self-assessment, the 2025/26 income tax and National Insurance computation (with Class 2 NIC removed from April 2024), allowable expenses, payments on account, Making Tax Digital for Income Tax, and the point at which incorporation starts to make sense.
11 min read
UK solicitors can claim significant tax relief on legitimate business expenses, but the rules are complex and mistakes costly. Understanding what qualifies and proper record-keeping is essential.
14 min read
A current, end-to-end guide to self assessment for solicitors: who must file, the key deadlines, how payments on account work, the income tax and Class 4 National Insurance computation, and the VAT and Making Tax Digital touchpoints. Figures are stated for 2025/26 with the changes from April 2026 flagged.
10 min read
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