How to Accept Card Payments on Slash Invoices
Last updated July 24, 2026
When Payment Processing is enabled for your business, you can let customers pay Slash invoices by card. Your customer opens the invoice, selects the Card payment option, enters their card and billing information, and submits payment from the invoice page.
Step 1: Create or Edit an Invoice
From your Slash dashboard, go to Invoices. Create a new invoice or open an invoice that can still be edited.
Enter or review the customer, invoice number, dates, line items, tax, discounts, memo, and other invoice details.
Step 2: Enable Card Payment
Under Supported payment methods, select Card Payment.
Slash shows the applicable processing fee and payment limits before you send the invoice. Review these details together with the invoice total.
Manual transfer remains available as a payment method. You can also enable other payment methods available to your account.
Step 3: Review the Customer Experience
Preview the invoice and confirm that the Card payment option appears. The customer will be asked to enter:
- Cardholder name
- Card number
- Expiration date
- Security code
- Billing address
Card details are collected through a secure card entry form and are not displayed to you.
Step 4: Send the Invoice
Review the invoice and send it immediately, schedule it, or save it according to the options available in your invoice flow.
When the customer opens the invoice, they can select Card, enter their payment details, and select Pay.
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