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Contact US Merchant Systems

Front desk 1-800-655-8767

Customer service 1-877-432-8871

Contact Method

Are you currently processing with USMS?

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Looking for lower rates and fees on credit card processingCurrent USMS client with question regarding my accountInterested in getting setup with USMS, please send me infoI am interested in becoming a USMS agentI am current USMS Agent with questions

USMS California offices

While USMS has agents serving all 50 states, we also have offices servicing our local communities.
For more information on US Merchant Systems, click here.

Sales | Product information

Phone: 800-610-5323
Fax: 866-240-7901

Customer service

Phone: 877-432-8871
Fax: 510-687-2103

Sales Support

Phone: 800-438-7570
Fax: 800-290-8457

Human resources

Phone: 800-655-8767
Fax: 510-687-2138

New agent registration

Phone: 800-655-8767 x2124
Fax: 510-687-2124

Risk managment | Loss prevention | Underwriting

Phone: 800-655-8767 x2148
Fax: 510-687-2148

Suply orders

click here

Voice authorization center

GPS Platform
Phone: 800-944-1111
Have Merchant ID
and Bank Number ready