Sign up with email
If you want a permanent account from the start, use the standard signup flow.1
Open the signup page
Go to https://invoice.horizonpay.co/signup, or click Create account on the landing page.
2
Enter your details
Provide your name, email address, and a password of at least 8 characters. Then click Create account.
3
Confirm your email
Invoice AI sends a confirmation link to the address you entered. Click the link to verify your email and activate your account.
If the confirmation email doesn’t arrive within a few minutes, check your spam folder. You can request a new link from the confirmation screen.
4
Complete the onboarding wizard
After confirming your email, Invoice AI takes you through the two-step onboarding wizard to set up your business profile. See Onboarding wizard below for the full walkthrough.
Guest mode
You don’t need an account to create an invoice. Guest mode lets you start immediately — no email, no password, no setup required.1
Click 'Create an invoice'
On the Invoice AI landing page, click the Create an invoice button. Invoice AI signs you in anonymously in the background and opens the invoice builder directly.
2
Fill in the invoice builder
Because you haven’t set up a business profile yet, Invoice AI asks for your business details inline in the builder the first time you create an invoice. Add your business name, country, currency, and address as you go.
3
Finalize and share
Complete your invoice and finalize it to get a PDF and a shareable link — exactly the same as a signed-in user.
Onboarding wizard
When you sign up with email, Invoice AI walks you through a two-step wizard before you reach the dashboard. Your progress is saved automatically, so you can close the tab and resume exactly where you left off.Step 1 — Business details
1
Confirm your country and currency
Invoice AI pre-selects your country based on your IP address. Change it if needed — the currency updates automatically to match your country’s default. You can override the currency if you invoice in a different one.
2
Add your address
Enter your business address. This appears on every invoice you send, so use the address your clients and tax authority expect to see.
3
Add an optional tax ID
If you’re registered for tax — VAT, EIN, GST, ABN, or any other format — enter your tax ID here. Invoice AI doesn’t validate the format; enter it exactly as it appears on your registration. You can leave this blank and add it later in Settings → Business.
Step 2 — Payment details
This step adds your bank account information to the footer of every invoice so clients know how to pay you.Claiming a guest account
If you started in guest mode and want to keep your invoices permanently, claim your account by adding an email address and password. Your existing invoices, clients, and business details stay attached to the same account — nothing is copied or migrated.1
Open the claim page
From anywhere in the app, look for the Save your work prompt, or navigate directly to https://invoice.horizonpay.co/claim.
2
Enter an email address and password
Choose an email address and a password of at least 8 characters. Click Claim account.
3
Confirm your email
Invoice AI sends a confirmation link to the address you entered. Click the link to activate the account.After confirmation, your guest session is upgraded to a permanent account. All your invoices are already there — no import needed.
Invoice AI shows you how many invoices are attached to your guest session on the claim page, so you know exactly what will be saved.
If the email address is already taken
If the email you enter belongs to an existing Invoice AI account, Invoice AI starts a merge flow:1
See the conflict notice
Invoice AI tells you that the email address already has an account and asks whether you want to merge your guest data into it.
2
Sign in to the existing account
Click Sign in and enter the password for the existing account. Invoice AI re-parents all your guest invoices to the account you sign in to.
3
Your work is transferred
After signing in, your guest invoices appear in the existing account’s dashboard. The merge happens automatically — no manual steps required.
Resetting your password
If you’ve forgotten your password, Invoice AI can email you a reset link.1
Open the forgot-password page
Go to https://invoice.horizonpay.co/forgot-password, or click Forgot your password? on the sign-in page.
2
Enter your email address
Type the email address you signed up with and click Send reset link.
Invoice AI returns the same confirmation message whether or not the email address has an account. This prevents account enumeration — if you don’t receive an email, check that you’re using the correct address.
3
Click the link in the email
Open the reset email and click the link. It takes you to a page where you can set a new password.
4
Set a new password
Enter your new password (at least 8 characters) and confirm it. Click Update password — Invoice AI signs you in automatically and takes you to your dashboard.