Free tools
AI invoice generator
Describe the work in plain language and download a ready-to-send invoice as a Word or PDF file, with every total calculated for you.
Reading your details...
Trusted by 40,000+ teams
An AI invoice generator turns plain language into a finished invoice. Instead of filling a form field by field, you describe the job, or paste the email thread where you agreed on it, and the AI reads the details into the right fields: who is billing, who is paying, the line items, dates, tax and payment terms. You preview the finished invoice, then download it as an editable Word .docx or a one-click PDF.
The AI never does the math. Line amounts, subtotal, discount, tax and total are all calculated in your browser, and the invoice is assembled from a clean Portant template, so the numbers are always right and the layout is always professional. When invoicing stops being a one-off, Portant can generate, e-sign and send invoices automatically from HubSpot, Google Workspace and Microsoft Office.
How to create an invoice with AI
01
Describe, paste, speak or snap
Type the invoice details, paste an email, record a voice note, or attach a photo. Combine them all in one box.
02
AI fills in the invoice
It reads who is billing, who is paying, the line items, dates and terms into the right fields, and asks if anything essential is missing.
03
Preview and download
Check the finished invoice in the preview, then download an editable Word .docx or a PDF, with every total calculated for you.
Why use an AI invoice generator
No form to fill
Type or paste the details, record a voice note, or snap a photo, and AI sorts them into the right invoice fields.
Accurate math, every time
The AI only reads your details into fields. Amounts, subtotal, discount, tax and total are calculated in your browser.
Editable Word .docx or PDF
Download a professional invoice you can tweak, print or send, or a ready-to-share PDF in one click. Free, no signup.
More than an invoice maker
Automate every invoice you send
One invoice is quick. When you bill every week, Portant generates, e-signs, sends and tracks invoices automatically from HubSpot, Google Workspace and Microsoft Office, with the templates you already use.
Trigger
New Deal in HubSpot
Generate
Send & Sign
Email + PDF & E-Sign
Save & Sync
HubSpot + Drive + OneDrive
Who uses the AI invoice generator
Freelancers & consultants
Paste the client email where you agreed on the work and get a tidy, itemized invoice back in seconds.
Small businesses
Bill for jobs the moment they are done by describing them in plain language, with tax and totals worked out.
Finance & ops teams
Turn messy job notes into consistent, professional invoices without retyping the details into a form.
“Portant has been a game-changer for Clipboard! It's saved our sales team countless hours every week by generating order forms, proposals and contracts with info from HubSpot automatically filled in.”
“This product is a gamechanger for all of those painful manual document merges. Love what you and the team have built!”
“Portant helps us automate workflows related to many document types. Proposals, invoices, contracts, and pitch decks. It saves us time and has eSign built in.”
“Portant has been a game-changer for Clipboard! It's saved our sales team countless hours every week by generating order forms, proposals and contracts with info from HubSpot automatically filled in.”
“This product is a gamechanger for all of those painful manual document merges. Love what you and the team have built!”
“Portant helps us automate workflows related to many document types. Proposals, invoices, contracts, and pitch decks. It saves us time and has eSign built in.”
“Portant has been a game-changer for Clipboard! It's saved our sales team countless hours every week by generating order forms, proposals and contracts with info from HubSpot automatically filled in.”
“This product is a gamechanger for all of those painful manual document merges. Love what you and the team have built!”
“Portant helps us automate workflows related to many document types. Proposals, invoices, contracts, and pitch decks. It saves us time and has eSign built in.”
“Portant has been a game-changer for Clipboard! It's saved our sales team countless hours every week by generating order forms, proposals and contracts with info from HubSpot automatically filled in.”
“This product is a gamechanger for all of those painful manual document merges. Love what you and the team have built!”
“Portant helps us automate workflows related to many document types. Proposals, invoices, contracts, and pitch decks. It saves us time and has eSign built in.”
“Portant has been a game-changer for Clipboard! It's saved our sales team countless hours every week by generating order forms, proposals and contracts with info from HubSpot automatically filled in.”
“This product is a gamechanger for all of those painful manual document merges. Love what you and the team have built!”
“Portant helps us automate workflows related to many document types. Proposals, invoices, contracts, and pitch decks. It saves us time and has eSign built in.”
“Portant has been a game-changer for Clipboard! It's saved our sales team countless hours every week by generating order forms, proposals and contracts with info from HubSpot automatically filled in.”
“This product is a gamechanger for all of those painful manual document merges. Love what you and the team have built!”
“Portant helps us automate workflows related to many document types. Proposals, invoices, contracts, and pitch decks. It saves us time and has eSign built in.”
AI invoice generator FAQ
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