Can You Claim ChatGPT on Tax? A Worked Business-Use Split

Often yes, but only the business share. If you are self-employed or run a company, an AI subscription you use for work can usually be claimed as a business expense. If you also use it for personal tasks, claim the work proportion and keep a note of how you calculated it. This is general guidance, not tax advice.

The question people ask is "is ChatGPT tax-deductible?" and the honest answer is a test, not a yes or no. Many tax systems ask whether the cost was incurred for the purposes of the business, and for sole traders some phrase it strictly: the cost must be incurred "wholly and exclusively" for the trade. A tool used half for work and half for fun fails the strict version for the whole price, which is why the split and the records matter more than the label on the tool.

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The test your accountant will apply

Strip away the national differences and the questions are the same in most places. Was this cost for the business? Would the business have paid for it if the owner had no personal use? Can you show how much of it was for work? Whether a mixed-use cost may be apportioned or must be refused in full depends on your rules, and that is the one thing to ask a qualified adviser rather than guess.

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Where apportionment is allowed, published tax-authority guidance tends to look like this. One self-employed expenses page gives a phone bill of 200 for the year, 70 of it business calls, and says the 70 can be claimed and the rest cannot. The same authority's internal manual draws a line between a cost with a genuinely separable business part, which can be claimed, and a cost bought for a single mixed purpose, which fails; and for things such as home-office use it accepts a detailed review over a representative period to set the business proportion, kept until circumstances change. A four-week usage log for an AI tool is that kind of review, which is why the worked example below uses one.

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Three situations come up for AI subscriptions, and they get different answers.

• Work-only account. You subscribed in the business's name, use it only for client work, drafting, research and admin, and nothing personal goes into it. This is the clean case and usually claimable in full, subject to your rules.
• Mixed account. One personal account serves business and private life. The common treatment is to claim the business share, where your rules allow apportionment. The share must be reasonable and supportable.
• Company-paid tool for an owner's personal use. A company that pays for a director's personal subscription can create a benefit-in-kind or a loan-account issue depending on your rules. Ask before you do it.

The sections below take the mixed account, since it is where nearly everyone starts. If you would like to reduce the whole problem, the cleanest answer is a separate account for work. A work-only account costs the same and removes the arithmetic, and it makes the rest of this page unnecessary.

List prices to anchor the sums

Use real prices when you work out a claim, and use your own invoices rather than the list price when you file. At the time of checking, ChatGPT's individual plans listed Free at $0, Go at $8 a month and Plus at $20 a month, with Pro from $100 a month across three usage tiers. Claude Pro listed at $20 a month, or $17 a month when billed annually ($200 a year). Google AI Pro, the Gemini subscription, listed at $19.99 a month. ChatGPT Business needs at least two seats and listed at $25 per user per month, or $20 on annual billing. Check each vendor's page, because prices and tiers change. A side-by-side of current AI subscription prices keeps a longer list.

Main worked example: a freelance copywriter on ChatGPT Plus

Say a freelance copywriter pays $20 a month for ChatGPT Plus on a personal card. She uses it for client drafts, headline tests and invoice reminders, and also for meal planning, travel ideas and helping a relative with a CV. To justify a percentage, she keeps a simple usage log for four weeks.

The log is a note after each session with the date, a one-line purpose, and a W or P marker for work or personal. For the sake of the illustration, her 120 logged sessions split as follows.

Work sessions add to 86 of 120, about 72 per cent. She does not claim 72 per cent as if it were exact, because sessions differ in length. She decides on 70 per cent, a round figure a little under the evidence, which is easier to defend than one that looks over-tuned. The sums for the year, illustratively:

• Cost: $20 a month for 12 months is $240.
• Business share at 70 per cent: $168.
• Personal share, not claimed: $72.

The claim goes in the business's expenses as software or subscriptions at $168. Her file holds the twelve invoices, the card statement lines, the four-week log and a note: "ChatGPT Plus, used for client writing and admin; 70% business based on a four-week log, reviewed each year." If her work grows and she starts a work-only account next year, the claim becomes the whole $240 and the note shrinks to one line.

What to improve in that log

Two things weaken a log like this, and both are easy to fix. First, four weeks is a snapshot, so choose a normal month, not a holiday. Second, a tool that mixes work and personal topics in one history makes it hard to prove later. Moving work into a ChatGPT Project or its own folder makes the history itself a record: the work chats are all in one place, and the personal ones are not.

Annual versus monthly plans

Paying yearly can lower the price. Claude Pro's annual billing is $200 against $240 monthly, a saving of $40. For the tax treatment, the question is when the cost is counted. Some accounting methods let a sole trader deduct a payment in the year it is made, while others spread a prepayment across the period it covers. Companies using accruals normally spread it. The sum is simple, but the rule comes from your accounting basis, so ask your accountant once and write the answer in your notes.

Say a sole trader pays $200 for an annual plan on 1 October, with a 31 December year end. Spread by months, three of twelve months fall in the first year, so $50 is that year's cost and $150 belongs to the next. Counted when paid, the full $200 is in the first year. Neither is the right answer for everyone, and switching between methods from year to year is the thing to avoid. If the plan is mixed use, the business percentage applies on top: 70 per cent of $200 is $140.

Other AI subscriptions, one example each

A work-only seat on a business workspace

A two-person design studio buys ChatGPT Business with two seats at the annual price of $20 each, $480 a year in total. The workspace is used only for client projects, with files in shared Projects. The claim is the whole $480, and the evidence is the invoice from the workspace owner and a line in the studio's software list. There is no split to defend, because there is no personal use. A one-person business that wants this arrangement pays for the two-seat minimum or uses a work-only individual plan instead.

An image tool used for client work and a hobby

A photographer pays $15 a month for an AI image tool and uses it for client mock-ups and for personal wall art. She logs generated images for a month: 40 for clients, 20 for personal. Two thirds is business, so she claims 65 per cent, which is a defensible round-down. The log is a screenshot of her generation history with dates, kept in her tax folder.

Usage billed per use

A consultant runs a script that calls an AI model for client summaries and pays only for what he uses, say $38 in a month. The bill is by project key, and the key is used only for client work. The claim is the full $38. He keeps each month's usage statement, and the key name shows the purpose.

A tool you stopped using

A freelancer signed up for an annual plan and abandoned it in month three. The payment was still a business cost when made, subject to the usual rules, but renewing a tool nobody uses is not a business purpose, and it is the first thing an adviser will question. The fix is a calendar reminder before every renewal date and a short note of what each tool is for. The guide to auditing your AI subscriptions covers that review.

Records worth keeping, in a folder or a spreadsheet

Keep the same five things for each AI subscription, whichever tool it is.

1. The invoice or receipt. Download it each month from the billing page, since a card statement line is not enough on its own where the tax rules require a receipt.
2. Proof of payment. The card or bank line, matched to the invoice.
3. A purpose note. One sentence on what the tool does for the business.
4. The business percentage and how you got it. The log, the date range and your rounding.
5. A review date. Yearly is enough, or whenever your use changes.

A bookkeeping tool can capture the receipts and match them to the bank feed. Automation does not decide the percentage, though. The tutorial on AI expense management shows how receipt capture works, and the one on what AI bookkeeping still leaves to an accountant explains where your own judgement comes in.

A filled-in record, for one tool

Tool: ChatGPT Plus
Paid: $20 a month, personal card ending 1234, invoices saved monthly
Purpose: client drafts, proposals, admin emails, research for client work
Business use: 70% (4-week log, 86 of 120 sessions work; rounded down)
Annual cost: $240 | Claimed: $168 | Not claimed: $72
Accounting treatment: expense in month paid (agreed with accountant)
Next review: [date next year], or sooner if work-only account opened

Where claims go wrong

Most mistakes come from small habits rather than big decisions.

• Claiming 100% on a mixed account because "it is mostly work". Mostly is not wholly. Either apportion or open a work-only account.
• No evidence of the percentage. A figure with no log looks like a guess. A round figure with a four-week log looks considered.
• Counting the family plan. If you pay for family members' seats, those are personal.
• Claiming tools you do not use for the business. A subscription bought "to learn AI" with no business use is a weak claim. A tool tested for a specific client or service is a stronger one.
• Changing method each year. Switching between claiming when paid and spreading over the period creates gaps and double counts.
• Currency and sales tax slips. Foreign-currency charges appear in your own currency on the card statement, so claim the amount actually charged. Where sales tax is shown on an invoice, how it is treated depends on whether you reclaim it, so follow your accountant's treatment.

Company or sole trader: who pays

For a sole trader, the owner and the business are one person for tax, so a personal card paying a business subscription is a business cost with a personal payment method. For a limited company, the company is a separate person. The cleanest route is for the company to buy the subscription in its name on a company card. If a director pays personally, the company usually reimburses the director or records it in a director's loan account, as your accountant advises. Do not let the company pay for a personal-use plan without asking how it is treated, because that can create a taxable benefit.

Another split: a bookkeeper on two assistants

Say a part-time bookkeeper pays for Claude Pro on the annual plan at $200 and for ChatGPT Plus at $20 a month, $240 a year. Claude is used only for client reconciliation notes, so it is in effect a work-only tool. ChatGPT is shared with his household. His four-week log shows 55 per cent work use, and he rounds down to 50 per cent. The numbers: Claude $200 in full, plus half of $240, which is $120, makes $320 of the $440 spent. He keeps the two lines apart in his spreadsheet so each tool carries its own percentage. Treating both tools at one blended rate would hide that one of them needs no split at all.

Moving to a work-only account part-way through a year

Many people start on a personal account, find the log tedious and open a second one for work. The year then has two phases and two treatments. Say the copywriter opens a work-only plan on 1 July. For January to June she claims 70 per cent of $120, which is $84. From July she claims the full $120 on the new account, and she stops paying for the personal one or drops it to the free tier. The year's claim is $204, and the file holds the log for the first half and a short note about when the work-only account began.

Moving over has a practical side effect. Client material and prompts in the old account stay there. Copy across any Projects, instructions and files you need, and check the old account's history for client information you would rather not leave in a personal login. Then the "which account is work" question never arises again.

Questions to put to your accountant in one email

A well-prepared email saves a billable call. Send the list of tools and ask for answers to these, then keep the reply with your records.

• May I claim the business share of a mixed-use subscription, and what level of evidence do you want for the percentage?
• Do you prefer I claim annual payments when paid or spread them across the months they cover?
• If my company pays for a tool I also use personally, how should that be recorded?
• Is there any treatment I should know about for sales tax shown on these invoices?
• If a subscription renews automatically after I stop using it, can I still claim the payment?

Accountants differ on the level of detail they want. Some are happy with a round percentage and a one-line note. Others want the usage log. Asking once, in writing, tells you which kind you have.

A quick check before you file

Run through five lines for each AI tool. Is it in the business's name or clearly used for the business? Does the invoice match the card line? Is the business percentage written down with its basis? Is the treatment of annual payments the same as last year? Would you be comfortable explaining the claim to someone who had never heard of the tool? If the answer to any of these is no, fix that row before you file, or leave that tool out of the claim and ask about it afterwards. Leaving out a doubtful $60 costs little. A claim you cannot support costs more in time, even when the amount is small.

A simple yearly routine

1. January: list every AI tool with its price, billing date and user. Delete the ones nobody used.
2. Each month: download invoices into a folder named by tool and year.
3. Once a year: re-run a four-week log for each mixed-use tool and update the percentage.
4. Before filing: send your accountant the list, the percentages and the invoices in one go, with the questions you want answered.

For a long list of tools, put each one in a spreadsheet with columns for price, billing cycle, user, purpose, business percentage and claimed amount. The total for the year then falls out of a sum. If you want to know which tools earn their price, start with the subscription audit, then decide what to keep. The tutorial on whether AI pays off for a one-person bookkeeping business shows the same cost-against-time sum applied to a real workload.

If you are unsure where your own tools sit, my AI implementation consultation includes reviewing which AI tools a business actually needs and how to set them up as work-only accounts. For the tax treatment itself, speak to a qualified accountant or tax adviser who knows your circumstances, since this page describes common patterns only and your rules may differ.

Follow-up questions on claiming AI subscriptions

Can I claim 100% of ChatGPT Plus if I use it mostly for work?

Only if your tax rules allow it for the way you use it. Where a subscription is used for both work and personal life, the usual approach is to claim the business share and be able to justify the percentage. A separate work-only account removes the argument.

Is a ChatGPT Business seat easier to claim?

Often yes, because a seat on a workspace you run for the business is bought for business use and sits in the business's name. Personal chats on it would weaken that, so keep the workspace for work.

Does an annual plan change when I claim it?

It can. Whether you claim the whole payment in the year you pay or spread it over the months it covers depends on your accounting method and local rules. Ask your accountant once and apply the same treatment each year.

What records do I need for an AI subscription?

The invoice or receipt, proof of payment, a note of what the tool is used for in the business, and a simple record of how you worked out the business percentage. Keep them for as long as your tax rules require.

What about AI usage billed through the API?

API charges are billed by usage and are normally easier to attribute to work, since they come from a project key rather than a personal chat window. Keep the usage statement with the invoice.

Further reads

• Can AI Do My Business Taxes? What It Can Safely Prepare — What AI can safely prepare for your tax return.
• AI Software for Copywriting: A Freelancer's Monthly Tool Budget — A freelancer's monthly AI tool budget, itemised.
• How Freelancers Use AI for Invoices, Proposals and Chasers — AI for invoices, proposals and payment chasers.
• How to Choose an Accountant Who Uses AI Well — Finding an accountant who is comfortable with AI tools.
• Tax Software With AI: What a Small Business Should Check — What to check before using tax software with AI.
• Top 10 AI Subscriptions for a Small Business: Who Needs Which — Ten AI subscription types matched to job roles, with list prices to check, a sample monthly bill and a simple audit-and-cancel routine.
• AI Tools and AI Development: The Complete 2026 Guide — the AI hub, including every tutorial in the AI-for-business series.

Sources: OpenAI, Anthropic and Google plan pages for list prices; published tax-authority guidance on mixed business and personal expenses and on apportionment (all checked November 2026). Tax treatment varies by place and by person.