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For solo freelancers

Type a sentence.
Send an invoice.

"Invoice Sarah $600 for the March website work." That's it. OneLineInvoice fills in the client, the tax, the numbering, and attaches a card payment link. Thirty seconds, start to sent.

You're in. We'll email you at launch.

First 100 signups get 3 months free. $6/month after. No card now.

Watch it happen
READY TO SEND
Invoice
No. 2026-014
Due: 14 days
Billed toSarah M.
Website work, March$600.00
Tax$0.00
Total due$600.00
Pay with card
Tax set once per client, applied every time. Stripe pays you directly.

This is the real input. No form. No client setup screen. No template picker. Your client details are remembered from the first invoice onward.

What sending an invoice looks like everywhere else

We signed up to the two most popular tools and counted. One made us pass 10 screens before we could touch an invoice: company form, phone number, account verification, template picker, module checklist.

The other greeted us with a blank form: upload a logo, create a client, pick dates, add lines. Its online payments setting? Switched off by default.

You have three clients, not a finance department. Invoicing should take the time of writing a text message.

How it works

01

Type one sentence

"Invoice Sarah $600 for the March website work." The invoice appears on screen with the amount, tax, number, and due date filled in. New client? Add their details once (email, VAT number if they have one, tax setting) and it's remembered forever.

02

Check and send

You see the invoice before it goes anywhere. Everything is tap-to-edit. One tap sends it. Your client gets it by email with a pay-by-card button, no account needed.

03

Get paid

Card payments land in your own Stripe account. We never touch your money. If the invoice runs late, a polite reminder goes out for you, automatically.

Why not the tools you already know?

The big paid toolThe big free toolOneLineInvoice
Making an invoiceBlank form + client setupForm, after a setup wizardOne sentence
Real price$23–$70/mo + add-onsFree, then upsells its suite$6/mo flat
Client limit5 on cheap planGenerousUnlimited
Payments on invoicesOff by defaultSetup wizardOn by default
Also wants to beYour accounting suiteYour whole ERPNothing else, ever

One price

$6/month, flat
The leading paid tool starts at $23/mo and caps you at 5 clients.
  • Unlimited invoices and clients
  • Card payment link on every invoice
  • Automatic polite late reminders
  • Tax set once per client, never typed again
  • Your data exports anytime. It's yours

Fair questions

What if the AI gets something wrong?

You see the invoice before it goes anywhere. Every field is tap-to-edit. Nothing sends without your OK.

Do my clients need an account?

No. They get an email with the invoice and a pay-by-card button. One click, done.

Where does the money go?

Straight into your own Stripe account. OneLineInvoice never holds your money. We only charge the $6.

What about my country's tax rules?

You set the tax for each client once. Your accountant tells you what applies (VAT, reverse charge, no tax). After that it's on every invoice automatically. We apply your setting; we don't give tax advice.

Send your next invoice in 30 seconds

Join the early list. First 100 get 3 months free. No card needed today.