Admin and Expenses: What AI Can Sort for You, and What Stays with Your Accountant
By Anis Hammouche·November 9, 2026
AI can help you sort your receipts, summarize your statements and prepare an expense sheet. It should not decide whether an expense is deductible, which VAT rate to apply, or what to file. Those decisions have tax consequences, and they belong to you or your accountant. The simple rule: AI prepares the material, you validate the decisions.
What you can hand to AI
Sorting and formatting are where the tool saves time without making a decision for you. They share one feature: you can check the result against the original document.
| Task | What AI can do | What you check |
|---|---|---|
| Sorting receipts | Suggest a file name and a folder from the content (date, supplier, amount) | That the amount and date match the document |
| Summarizing a statement | List recurring direct debits, group them by supplier | That the summary total equals the statement total |
| Preparing an expense sheet | Put the lines of an export into columns | Each line of the sheet against the source |
| Drafting a note for your accountant | Structure the questions to ask | That the facts are accurate and complete |
| Spotting duplicates | Flag two identical or nearly identical lines | That they are not two genuine separate purchases |
In every case, AI produces a proposal. You decide what is kept.
What stays with you, or with your accountant
Some decisions require knowledge of your tax regime, your situation and the rules in force. AI can sound sure of itself, but it knows neither your file nor the latest changes.
| Decision | Who decides | Why |
|---|---|---|
| Is an expense deductible? | You, with your accountant | Depends on the nature of the expense and its professional use |
| Which VAT rate applies? | You, with your accountant | Depends on the service and your regime |
| What to file, and when | You, or your accountant | Obligations specific to your status and the tax calendar |
| Tax regime, annual accounts, depreciation | Your accountant | Technical choices that commit you over several years |
| Replying to an administration letter | You, with a professional if needed | The reply commits your situation |
The concrete risk: AI files a restaurant receipt under "overheads" when it actually belongs to another use. The error looks minor. It is paid for at the time of an audit, or in an incorrect filing.
What the retention rules say
Knowing how long to keep your documents shapes your filing system. The periods below come from service-public.fr.
- Accounting records and supporting documents: 10 years from the close of the financial year.
- Tax documents: 6 years. The period runs from the last transaction recorded in the books, or from the date the documents were drawn up. It rises to 10 years in cases of undeclared activity.
- Contracts and business correspondence: generally 5 years, depending on the type of document.
These periods are minimums. You may keep documents longer, unless they contain personal data you no longer need. In that case, the data minimization principle applies. An annual clean-up is usually enough.
For details, the official page how long to keep company documents is the reference. For commercial documents, the page commercial documents of a business gives the detail by document type.
Electronic invoicing is coming
The electronic invoicing reform changes how you receive and issue invoices. According to the official site impots.gouv.fr, every business must be able to receive electronic invoices from 1 September 2026. Large companies and mid-sized companies must issue them from that date. Small businesses and micro-enterprises have until 1 September 2027 to issue them.
If you use AI to archive your invoices, check that the format you receive can be kept and read. A PDF is not necessarily an electronic invoice within the meaning of the reform: check the expected format. For your situation, the page discover electronic invoicing sets out the timetable that applies.
How to set up reliable sorting
- Create a starting folder. One folder per year, with subfolders by type: purchases, sales, statements, taxes, subscriptions.
- Export, then sort. Export your bank statements as a file, rather than copying and pasting lines into a tool.
- Ask for a proposal, not an action. For example: "Propose a category and a date for each line, without deleting anything."
- Check a sample. Check one line in ten against the source. If the same error comes back, change the instruction or have everything checked.
- Keep a trail. Keep the original export. A correction must be traceable.
Do not paste full statements into a public tool without thinking about the data they contain: bank details, addresses, client references. What you should never entrust to a public AI describes the categories to keep out of a tool you do not control. Anonymize whatever the sorting does not need.
Frequently asked questions
Can AI keep my accounts for me? No, not without validation. It can prepare the data. Keeping the accounts and making tax decisions remain with you or with a qualified professional.
Should I keep receipts in their original format? Yes, that is the simplest form of caution. Keep the original document, even if you add a sorted copy beside it. In an audit, the source document is what counts.
How do I know whether an expense is deductible? Do not ask AI alone. Ask your accountant, or consult the official pages of service-public.fr for your regime. The answer depends on your situation.
What if AI sorted an expense wrongly? Correct it, and note the error. If it repeats on the same type of expense, that is a signal: the instruction is poorly worded, or the tool lacks context. In that case, handle that kind of line by hand.
