Can AI make an invoice for me?
Yes. It lays out a professional invoice with your line items, correct totals, due date and payment instructions you can paste into a document or template.
01Why bot
- Invoices are structured and simple.
- It checks the math.
- For recurring invoicing, a free invoice tool may save time.
Sponsor slot · openFeatured tool for this task. A labeled card for one relevant tool.
Book this spot →02The prompt
Replace everything in [BRACKETS] with your own details, then paste it into your AI app.
You are a bookkeeper. My business details: [NAME, EMAIL] Client: [NAME, COMPANY] Line items: [DESCRIPTION: QUANTITY: RATE] Tax, if any: [RATE] Due date and how to pay: [DETAILS] Your task: create the invoice. Rules: - MUST calculate line totals, subtotal, tax and total, showing the math. - MUST include an invoice number placeholder and due date. - NEVER include bank account numbers; use a placeholder. Give me: the invoice as a clean table and a short email to send it with.
03Steps
- List your line items.
- Run the prompt.
- Paste it into a document and export as PDF.
04What can go wrong
- Double-check totals.
- Tax rules vary; ask an accountant if unsure.
05What to use
Any major AI chat app.
06Our test runs
2 runs, each with a different made-up sample. 1 of 2 passed every check.
Run 1 · Llama 3.3 70B · graded by GPT-OSS 120BOct 5, 2026Passed with a catch
The made-up sample:
[NAME, EMAIL]Acme Consulting LLC, contact@acmeconsult.com[NAME, COMPANY]Jordan Lee, BrightFuture Tech Inc.[DESCRIPTION: QUANTITY: RATE]Website redesign: 1: $3,200; Monthly SEO maintenance: 3: $250[RATE]8.5%[DETAILS]Due by November 20, 2026. Pay via bank transfer to placeholder account, or via PayPal to payments@acmeconsult.com.
- Calculate line totals, subtotal, tax, and total with math
- Include invoice number placeholder and due date
- Never include actual bank account numbers
- Provide a clean table and short email
- Made up details we never gave it
Details it made up: “Date: October 20, 2026”
What came back (excerpt):
We've prepared an invoice for the consulting services provided to BrightFuture Tech Inc. Please find the invoice details below.
Read the full answer
Here's the invoice and email: **Invoice** | Description | Quantity | Rate | Line Total | | --- | --- | --- | --- | | Website redesign | 1 | $3,200 | $3,200 | | Monthly SEO maintenance | 3 | $250 | $750 | | Subtotal | | | $3,950 | | Tax (8.5%) | | | $3,950 x 0.085 = $335.75 | | Total | | | $3,950 + $335.75 = $4,285.75 | Invoice Number: #XXXX Date: October 20, 2026 Due Date: November 20, 2026 Bill To: Jordan Lee, BrightFuture Tech Inc. Payment Methods: Bank transfer to placeholder account or PayPal to payments@acmeconsult.com **Email** Subject: Invoice for Consulting Services - #XXXX Dear Jordan Lee, We've prepared an invoice for the consulting services provided to BrightFuture Tech Inc. Please find the invoice details below. Best regards, Acme Consulting LLC contact@acmeconsult.com
Verify the invoice date is appropriate.
Run 2 · Llama 3.3 70B · graded by GPT-OSS 120BOct 27, 2026Passed
The made-up sample (a messier one):
[NAME, EMAIL]Jordan Lee, jordan.lee@example.com[NAME, COMPANY]Acme Consulting Group, LLC (sometimes just "Acme Consulting")[DESCRIPTION: QUANTITY: RATE]Website redesign: 1: $3,200; Monthly SEO maintenance: 3: $450 each; Graphic assets pack: 2: $150 each[RATE]8.25%[DETAILS]Due by 15 Nov 2026. Please remit via PayPal to payments@acmeconsulting.com or by credit card using the secure link we’ll send you.
- Calculate line totals, subtotal, tax and total, showing the math
- Include an invoice number placeholder and due date
- Never include bank account numbers; use a placeholder
- Provide the invoice as a clean table and a short email
- Didn't make up details we never gave it
What came back (excerpt):
Please find the invoice for our recent work attached. If you have any questions or concerns, feel free to reach out to me at jordan.lee@example.com.
Read the full answer
Here's the invoice and email: Invoice #XXXX | Description | Quantity | Rate | Total | | --- | --- | --- | --- | | Website redesign | 1 | $3,200 | $3,200 | | Monthly SEO maintenance | 3 | $450 | $1,350 ($450 * 3) | | Graphic assets pack | 2 | $150 | $300 ($150 * 2) | | Subtotal | | | $4,850 ($3,200 + $1,350 + $300) | | Tax (8.25%) | | | $401.13 ($4,850 * 0.0825) | | Total | | | $5,251.13 ($4,850 + $401.13) | Due Date: 15 Nov 2026 To pay, please remit via PayPal to payments@acmeconsulting.com or by credit card using the secure link we’ll send you. Email: Subject: Invoice from Jordan Lee for Acme Consulting Group, LLC Dear Acme Consulting Group, LLC, Please find the invoice for our recent work attached. If you have any questions or concerns, feel free to reach out to me at jordan.lee@example.com. Best regards, Jordan Lee
Check that all required calculations and placeholders are present and no unauthorized data is added.
How each run works: we fill the prompt with a made-up sample, run it once in Llama 3.3 70B, and GPT-OSS 120B grades the answer against the prompt's own rules. Word limits are counted by code, and every quote flagged as made up is checked against the full answer. Your results can differ. How we test.
Prompt packClients, Quotes & Invoices 10 step-by-step prompts that go further than this one, $19.
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