Merchant portals

MX Merchant Login: What to Know About the Company Behind It

MX Merchant is Priority’s platform for taking and managing card payments: a virtual terminal, mobile app and reporting portal in one. If you are here to log in, the first box tells you how. If you are a Priority merchant, the second tells you what we found when we rated the company.

Written by Robert Day, Founder and Managing Partner of weAudit.com, previously an executive at Fifth Third Processing Solutions, later Vantiv and Worldpay, now part of Global Payments, the world’s largest card processor. Published October 2026.

Looking for the login?

MX Merchant belongs to Priority Technology Holdings. Sign in from the official MX Merchant website, or use the MX Merchant Express app for mobile payments.

Never use a login link sent by email, and if your login stopped working, call the support number printed on your merchant statement.

While you are logged in

Download your last twelve monthly statements. They show every fee, and they are what an audit needs.

What to know: Priority scores 51 out of 100

51/100

Priority Payment Systems’ score on the weAudit Processor Scoreboard. Its weakest categories are Sales Channel Conduct, at 4 out of 15, and Fee Practices and Contract Terms, at 7 out of 25.

An overbilling class action. Priority has faced a fraud and overbilling class action brought on behalf of merchants.
A hard way out. Our rating documents an exit process layered enough that leaving can end at a collections agency.
Agent-set pricing. MX Merchant accounts are sold largely through independent agents, so two merchants on the same platform can pay very different rates.

Read the full Priority rating

What MX Merchant is

MX Merchant is the merchant-facing platform of Priority Technology Holdings, Inc. It combines a virtual terminal, a payment gateway, the MX Merchant Express mobile app, invoicing and reporting. Merchants use it to take payments, check batches and deposits, and download statements. It works with a Priority merchant account; it is not a gateway you can carry to another processor.

Why the platform matters for your price

Because MX Merchant is tied to Priority’s processing, choosing the platform means choosing the processor, and Priority’s pricing is set account by account, largely through independent sales agents. That makes the platform convenient and the price hard to compare. Read who has the best credit card processing rates for why the setup matters more than the quoted rate.

Same pattern, different processor. Fiserv’s Business Track and Heartland’s InfoCentral are the same kind of portal. The portal is where you see your fees; it is not where you find out whether they are fair.

Common questions

How do I log in to MX Merchant?

MX Merchant is Priority Technology Holdings’ merchant platform. Sign in from the official MX Merchant website, never from a link sent by email, and call the support number on your statement if your login stopped working. The MX Merchant Express app handles mobile payments.

Who owns MX Merchant?

MX Merchant is owned by Priority Technology Holdings, Inc., the Georgia-based payments company behind Priority Payment Systems.

Is MX Merchant a payment gateway?

It is Priority’s merchant platform: a virtual terminal, gateway, mobile app and reporting suite used by merchants whose accounts are processed by Priority. It is not an independent gateway you can pair with another processor.

What fees does MX Merchant charge?

MX Merchant comes with a Priority merchant account, and pricing is set account by account, often by the sales agent who signed you up. Check your statement for your processing rate and any monthly or platform fees.

How does weAudit rate Priority?

Priority Payment Systems scores 51 out of 100 on the weAudit Processor Scoreboard. Its weakest categories are Sales Channel Conduct and Fee Practices and Contract Terms.

What should I download from MX Merchant?

Your last twelve monthly statements and your batch and deposit reports. Together they show what you actually paid, which is what an audit needs.

Download your statements. Send them to us.

Our first audit is free and takes about five minutes of your time. We check every fee on your Priority statement and tell you what you should be paying. If there is nothing to find, you will know that too.

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800-672-1292

weAudit is not affiliated with Priority Technology Holdings, and this page is not a login or support page for MX Merchant. MX Merchant is a trademark of Priority Technology Holdings, Inc.