Can I Claim ChatGPT and AI Tools as Business Expenses as a Business Expense?

AI tool subscriptions are fully deductible business expenses for UK limited companies in 2025/26. HMRC has no special rules for AI — these tools are treated exactly like any other software subscription under the Business Income Manual (BIM35800). ChatGPT Plus, Claude Pro, Cursor, Perplexity Pro, GitHub Copilot, Notion AI, Grammarly, Otter.ai, and the wider AI tool ecosystem all qualify as allowable deductions when used for business purposes.

The tax treatment is straightforward. Monthly or annual subscription fees are revenue expenses, deducted fully in the accounting period incurred. There is no need to capitalise them or claim capital allowances. A director spending £150 per month across AI tools reduces their company's taxable profits by £1,800 per year — saving £450 in Corporation Tax at the 25% main rate, or £342 at the 19% small profits rate.

HMRC's position on what counts as business software has not changed because of AI. BIM35800 states that expenditure on computer software used in the business is an allowable revenue deduction. AI tools used in the course of your trade — to draft client communications, analyse data, write code, create marketing content, transcribe meetings, or automate workflows — are tools of your trade in exactly the same way that Microsoft 365 or Slack is.

The most common tool by tool breakdown:

**ChatGPT (OpenAI):** ChatGPT Plus costs £20/month and ChatGPT Team is £25/user/month. Both are deductible for business use. OpenAI bills from the US, so UK VAT is not added by default. VAT-registered businesses should apply the reverse charge (see VAT section below). The annual cost of £240 for one Plus subscription saves £60 in Corporation Tax at 25%.

**Claude (Anthropic):** Claude Pro is approximately £18/month and Claude Team is around £25/user/month. Anthropic bills from the US. The same deductibility and reverse charge VAT rules apply as OpenAI.

**Cursor:** Cursor is an AI-powered code editor at approximately £16/month (Cursor Pro) or £30/month for business. It is a direct development tool, fully deductible as software for any company doing software development work. Cursor bills from the US.

**Perplexity Pro:** £15.99/month or £150/year. Fully deductible as a research and information tool. Used widely by consultants, researchers, and founders to replace traditional search and synthesise information from multiple sources.

**GitHub Copilot:** £10/month (Individual) or £15.20/month per user (Business). Billed via GitHub (Microsoft). UK VAT is typically charged on GitHub invoices, so VAT-registered businesses reclaim the input VAT in the normal way. A three-developer team spending £547.20 per year on Copilot Business saves £136.80 in Corporation Tax.

**Notion AI:** Available as an add-on to Notion at approximately £8/month per user. Fully deductible as productivity and knowledge management software. Notion charges UK VAT on invoices to UK businesses.

**Grammarly Business:** Varies by team size. Grammarly charges UK VAT. Deductible as a business writing tool.

**Otter.ai and Fireflies.ai:** AI meeting transcription tools used for recording and summarising client calls, team meetings, and discovery sessions. Monthly costs of £8–£16 per user are fully deductible. Useful for professional services, sales teams, and any client-facing business.

**AI image generation:** Midjourney (£24/month) and DALL-E via OpenAI API are deductible for commercial business use. Ensure you have a commercial licence from the provider if you are using generated images for client work.

**AI API costs:** Companies building AI-powered products or automating business processes using the OpenAI API, Anthropic API, Google AI, or similar pay usage-based charges. These are deductible as cost of goods sold or operating expenses, depending on what they power. API costs can be substantially higher than subscription costs for product businesses.

**Personal use apportionment:** If you use an AI tool for a genuine mix of business and personal purposes, you should apportion the cost. A tool used 80% for business and 20% personally should have 80% of the cost claimed. In practice, most limited company directors use AI tools predominantly for work, and HMRC is unlikely to challenge a full claim unless personal use is clearly substantial. Keep your records — a note in your accounts software or expense tracker about primary business use is sufficient.

**VAT on AI tools — the reverse charge:** Most major AI tool companies are based in the United States. When a UK VAT-registered business purchases digital services from an overseas supplier, the reverse charge applies. This means you account for VAT yourself rather than paying it to the supplier. The accounting entry adds 20% VAT to the invoice value and reclaims it simultaneously — for most businesses this is VAT-neutral (the VAT in and out cancel each other). However, if your company is partially exempt or uses the flat rate scheme, the treatment differs. Always categorise overseas digital service purchases correctly in your accounting software — most will have a reverse charge tax code (e.g., T24 in Xero or RC SL in QuickBooks). The individual amounts per tool are modest, but if you use five or six AI tools, the annual reverse charge liability to account for correctly can be £200–£500.

For non-VAT-registered businesses: no reverse charge applies and the full cost including any foreign VAT is the deductible expense.

**Annual subscriptions paid upfront:** If you pay an annual subscription in one payment, you can deduct the full amount in the period paid, provided the subscription period does not extend significantly beyond your accounting year-end. A full year's payment made close to your year-end may need to be apportioned, but most directors pay monthly or their year-end timing is such that annual prepayments cause no issue.

**Company versus personal payment:** AI tools must be paid for by the company, or reimbursed by the company to the director, for the deduction to be taken in the company's accounts. If you pay personally and do not claim it back via expenses, the company gets no deduction. Always put AI tool subscriptions on a company card or claim them through your expense process.