Running a digital marketing agency means you're constantly on the move—meeting clients, closing deals, and managing payments wherever you are. But here's the problem: most agencies are still stuck using disconnected payment systems that don't talk to their CRM, forcing them to manually log transactions and lose valuable client data in the process.
That's where GoHighLevel's mobile payment processing comes in. With the ability to accept in-person payments directly through the mobile app using NMI and Authorize.net, you can now process payments on the go without leaving your CRM. Whether you're signing a new client, collecting a deposit, or processing a service payment, everything stays connected and automated.
In this guide, I'll walk you through exactly how to set up and use mobile payments in GoHighLevel, so you can accept payments anywhere and keep your agency moving at the speed of your business. Ready to streamline your payment workflow? Start your free 30-day trial of GoHighLevel today and see how thousands of agencies run their entire business on one platform.
Understanding GoHighLevel's Mobile POS for Agencies
GoHighLevel's mobile Point-of-Sale (POS) system is a game-changer for agencies that need to accept payments in real time. Unlike traditional POS systems that live in a separate app or dashboard, GoHighLevel's mobile payments are fully integrated into your CRM. This means when you process a payment, it automatically updates the client record, syncs with your invoicing system, and triggers any connected automation workflows.
The mobile POS module brings together multiple payment solutions in one unified hub. You can accept payments via Tap to Pay, cash, traditional card entry, and manual payment entry—all from the same interface. But for this guide, we're focusing specifically on NMI and Authorize.net, which are two of the most robust payment gateways available for agencies looking for enterprise-grade security and reliability.
What makes this particularly powerful for agencies is that you're not just processing a payment—you're moving a client through your entire business workflow without switching apps. When you accept a payment in the field, it updates their CRM record, marks an invoice as paid, and can even trigger follow-up sequences automatically.
Prerequisites: What You Need Before Getting Started
Before you can start accepting mobile payments through GoHighLevel, you'll need a few things in place:
1. An Active GoHighLevel Account: You need access to a GoHighLevel workspace with admin-level permissions to configure payment gateways. If you don't have one yet, you can start a free 30-day trial here.
2. NMI or Authorize.net Account: You'll need to have already signed up with one (or both) of these payment processors. If you're just starting, NMI is known for flexibility and lower setup fees, while Authorize.net is ideal if you already have existing merchant accounts you want to integrate.
3. API Credentials: Both NMI and Authorize.net provide API keys and credentials that you'll need to securely connect to GoHighLevel. These are found in your payment processor's dashboard.
4. Mobile App Access: You'll need to download the GoHighLevel mobile app on iOS or Android to process payments on the go. The mobile app is where the real magic happens—that's where you'll actually ring up transactions.
5. Supported Payment Method: Make sure your team has access to either a mobile card reader (for Tap to Pay) or the ability to manually enter card details securely through the app.
How to Set Up NMI Payment Processing
NMI (Network Merchants Inc.) is a flexible payment processor that works well with GoHighLevel's mobile POS. Here's how to connect it:
Step 1: Access Your GoHighLevel Settings Log into your GoHighLevel workspace and navigate to Settings > Payment Gateways. You'll see a list of available payment processors.
Step 2: Select NMI Click on NMI from the available gateway options. GoHighLevel will prompt you to enter your NMI credentials.
Step 3: Gather Your NMI API Credentials Log into your NMI merchant account and locate your API credentials. You'll need your Security Key and Merchant ID. These are typically found in your NMI dashboard under "API Settings" or "Developer Tools."
Step 4: Enter Your Credentials in GoHighLevel Paste your Security Key and Merchant ID into the corresponding fields in GoHighLevel. Double-check for any spaces or extra characters, as these will prevent the connection from working.
Step 5: Test the Connection GoHighLevel typically provides a "Test Connection" button. Click it to verify that your credentials are correct and the gateway is connected.
Step 6: Save and Activate Once the test passes, click Save or Activate. Your NMI payment gateway is now live and ready to process transactions.
💡 Pro Tip
If you're setting up NMI for the first time, reach out to their support team to ensure your account is configured for mobile payments and card-not-present transactions. Some NMI accounts require specific setup to enable these features.
This is built into GoHighLevel. Try it free for 30 days →
How to Set Up Authorize.net Payment Processing
Authorize.net is one of the oldest and most trusted payment processors in the industry. If you already have an Authorize.net merchant account, integrating it with GoHighLevel is straightforward.
Step 1: Access Your GoHighLevel Payment Gateway Settings Go to Settings > Payment Gateways and look for Authorize.net in the list.
Step 2: Click Configure or Connect Authorize.net Select Authorize.net to begin the setup process.
Step 3: Retrieve Your Authorize.net API Login ID and Transaction Key Log into your Authorize.net merchant account. Go to Account > Settings > API Credentials & Keys. You'll find your API Login ID and Transaction Key here. These are what GoHighLevel needs to process payments on your behalf.
Step 4: Input Your Credentials Paste your API Login ID and Transaction Key into GoHighLevel's Authorize.net configuration screen. Make sure you're entering the correct credentials for your live account (not a sandbox/test account) if you want to process real payments.
Step 5: Run a Test Transaction GoHighLevel allows you to test the Authorize.net connection before going live. Process a small test transaction to confirm everything is working.
Step 6: Activate and Save Once confirmed, save your settings. Authorize.net is now connected to your GoHighLevel mobile POS.
Step-by-Step: Processing Payments with Saved Cards
One of the biggest time-savers in GoHighLevel's mobile POS is the ability to process payments using cards you've already saved for a client. This is perfect for recurring payments, retainers, or quick follow-up payments without asking the client to hand over their card again.
Step 1: Open the Client Record In the GoHighLevel mobile app, navigate to the specific client you want to process a payment for.
Step 2: Access the Payment Section Look for the Payments or Invoices tab within the client's record. You should see any previously saved payment methods here.
Step 3: Select the Saved Card Click on the saved card you want to use. GoHighLevel will display the last four digits for confirmation.
Step 4: Enter the Amount Input the payment amount. You can reference an invoice if one exists, or enter a custom amount.
Step 5: Confirm and Process Review the transaction details one more time, then tap "Process Payment" or "Charge Card." The transaction will be processed through your connected payment gateway (NMI or Authorize.net).
Step 6: Confirmation and Receipt Once processed, you'll see a confirmation screen with the transaction ID. You can generate and send a digital receipt to the client directly from this screen.
Processing Payments with New Cards on the Mobile App
Sometimes you need to accept a payment from a client who isn't in your system yet, or they prefer to use a different card. GoHighLevel makes this seamless with manual card entry right in the mobile app.
Step 1: Navigate to the Payment Processing Screen In the mobile POS section, select "New Payment" or "Process Payment." You can do this from a client record or directly from the POS dashboard.
Step 2: Choose "New Card" or "Manual Entry" Instead of selecting a saved card, choose the option to enter a new card.
Step 3: Enter Card Details Manually input the customer's card information: card number, expiration date, CVV, and billing address. The app encrypts this data in real time, so it never sits unencrypted on your phone.
Step 4: Option to Save the Card GoHighLevel will ask if you want to save this card for future transactions. If the client is a repeat customer, saving is a smart move for next time.
Step 5: Enter the Payment Amount Specify the transaction amount and add any notes or invoice references.
Step 6: Process the Transaction Tap "Process" and the payment will be charged through your active payment gateway. You'll get instant confirmation with a transaction ID.
💡 Pro Tip
For added security during in-person payments, ask the client to enter their CVV themselves rather than reading it aloud. This reduces the exposure of sensitive card data and shows you take security seriously.
Best Practices for Mobile Payment Acceptance
Keep Your Phone Secure: Your mobile device is now a payment terminal. Use strong passwords, enable two-factor authentication, and keep your GoHighLevel app updated.
Process Payments Over Secure Connections: Always process payments when connected to a secure WiFi network or cellular data. Avoid public WiFi for payment processing.
Maintain PCI Compliance: GoHighLevel handles encryption and PCI compliance for you, but make sure you're not writing down or screenshotting card numbers. The system is designed to keep sensitive data secure—use it as intended.
Send Digital Receipts: Always send a receipt to the client after processing. This provides them with a record and protects you with proof of transaction.
Reconcile Regularly: At the end of each day, reconcile your mobile payments in GoHighLevel with your actual sales. This catches any issues early and keeps your financial records clean.
Train Your Team: If multiple team members are using mobile payments, make sure they understand the process and security best practices. A quick training session prevents mistakes and ensures consistency.
Monitor Transaction Fees: Both NMI and Authorize.net charge per-transaction fees. Keep track of your volume and ensure you're on the right pricing tier with your payment processor.