United States

Invoice software for the United States

Invoices in dollars with sales tax at the rate for your customer’s state, or with no tax line at all when what you sell is not taxed.

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Free for 5 invoices a month. Pro from $9 a month.

Set for United States

Made for how the United States invoices.

Sales tax

There is no national sales tax. Each state sets its own rate, and cities and counties add to it, so the rate depends on where your customer is. A new invoice starts at the statewide rate for your customer’s state and you can type the exact local rate. Five states charge none.

EIN / Sales tax permit

Businesses are identified by an EIN: two digits, a hyphen and seven digits. If you collect sales tax, your state also gives you a sales tax permit number.

USD and local dates

Amounts are in US dollars, and you can pick another currency on any invoice. A bank statement you upload is read the way banks in the United States write dates.

Financial year from 1 January

Invoice numbers start a new series each January, so the first invoice of the year is OG/2026/0001.

What an invoice needs to show in the United States.

No federal law sets an invoice format. A clear invoice in the United States shows:

  1. Your business name and address
  2. Your customer’s name and address
  3. An invoice number and the date
  4. What was sold, with quantity and price
  5. Sales tax as its own line, where you charge it
  6. The total, the payment terms and how to pay

Check with your accountant for your case.

The Openn Group1

EIN / Sales tax permit12-3456789

Invoice

3OG/2026/0046

3Date
Oct 5, 2026
Due
Oct 20, 2026

Bill to

Brew Street Cafe2

Item4TaxAmount
Logo design6.25%550.00
Menu cards6.25%200.00
Shop signboard6.25%400.00

Subtotal$1,150.00

Sales tax 6.25%5$71.88

Total6$1,221.88

How to pay6

Account number
000123456789
Routing no.
021000021

Authorized signature

for The Openn Group

Getting paid

  1. Send it yourself

    Share the invoice from your own email or any app on your phone. The track turns to Viewed when your customer opens it.

  2. Your customer sees how to pay

    Customers pay by ACH bank transfer, card or check. Print your account and routing number for ACH, and add a payment link from your card processor so customers can pay by card. The link also prints as a QR.

  3. Match it from your statement

    On Pro, upload your bank statement. Dates written like 10/05/2026 are read correctly, and you match each payment in one click.

Keeping track

Who owes you, and the sales tax you charged.

Unpaid and overdue, on Home

Each late invoice has its reminder written. You send it yourself, from your own email or any app on your phone.

Sales tax reports, rate by rate

Pick the month, the quarter or the year. Sales are set out by sales tax rate, for you or your accountant to check before filing.

Pricing

What it costs in the United States.

  • Free

    $0

    5 invoices a month

    Unlimited estimates, up to 10 customers. Shows a few ads.

  • Pro

    $9 a month

    or $79 a year

    Just you, on up to 3 devices, plus your accountant. Unlimited invoices, and payments matched from your bank statement.

  • Team

    $19 a month

    or $159 a year

    Up to 3 people.

  • Business

    $39 a month

    or $329 a year

    Up to 10 people.

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Prices exclude sales tax.

Full pricing

FAQ

Questions from the United States.

Does Openn Invoice make a proper invoice for the United States?

Yes. Add your EIN / Sales tax permit in settings and each invoice is titled “Invoice”, with sales tax worked out line by line at the rate you set and totals in US dollars. What it has to show in the United States is listed on this page. Check with your accountant for your case.

Does it file my sales tax return?

No. Openn Invoice makes invoices and shows who has paid. It does not file returns or keep full accounts. Paid plans include a tax report and CSV downloads to hand to your accountant.

I am not registered for sales tax. Can I still use it?

Yes. Leave the EIN / Sales tax permit empty in settings and send invoices with no sales tax on them.

Can I bill customers outside the United States?

Yes. Pick the customer’s country and currency on the invoice. A customer abroad is billed as an export, with no sales tax added. You see the reason on the invoice before you send it.

What does it cost in the United States?

Free covers 5 invoices a month. Pro is $9 a month or $79 a year, with unlimited invoices, recurring invoices and bank statement matching. Prices exclude sales tax.

Have another question? Contact us

Other countries

Invoicing somewhere else?

Send your next invoice in the United States.

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Free for 5 invoices a month.