This document details how to connect the NMI payment gateway to accept payments and how our integration works.


The NMI payment gateway on Invoiced supports the following features:



Vaulting cards

Vaulting bank accounts


Level 3 Processing

Apple Pay


USD only


ACH payment status


Connecting NMI is a straightforward process. Follow these steps to start accepting payments through NMI in minutes. These steps assume you already have a NMI account.

  1. First contact Invoiced Support to request that the NMI payment gateway is added to your Invoiced account.
  2. Once activated go to SettingsPaymentsPayment Gateways in the Invoiced web application.
  3. Click Edit on the payment gateway you want to setup.
  4. Enter in your NMI Username / Password and click Save. Then click Enable and the payment method you selected should be enabled.

Client Workflow

Credit Cards

Paying with credit or debit card is fairly straightforward for customers. They simply enter in their cardholder information and click Pay. We give receipts to your customers after a successful payment.


Customers can pay with ACH just as easily as with credit cards. The key difference is that ACH payments will take several business days to clear. When customers are on a payment form they will select ACH as the payment information and then enter in their bank account and routing number.


Need help with your NMI account? You can get help by contacting your NMI account representative.