Southland Data Processing - Complete Employer Solutions

Contact Southland Data Processing

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Southland Data Processing 912 Monte Vista Avenue • Upland, CA 91786
Phone: 909.946.2032 | Fax: 909.946.6372
Email: support@SDPpayroll.com
Business hours: 8:30 am - 5:00 pm (Monday to Friday) - Closed for lunch 12:00 - 1:00PM


Southland Data Processing, Texas 402 W. McDermott • Allen, TX 75013
Phone: 469.656.3434 | Fax: 469.718.7915
Email: SDP_Texas@SDPpayroll.com
Business hours: 8:00 am - 5:00 pm (Monday to Friday) - Open during lunch hours.



Southland Data Processing

Holiday Schedule
Please incorporate the following holidays into your processing calendar.

  • Monday, Feb. 15 - Bank Holiday
  • Monday, May 31 - SDP Closed
  • Monday, July 5 - SDP Closed
  • Monday, Sept. 6 - SDP Closed
  • Monday, Oct. 11 - Bank Holiday
  • Thursday, Nov. 11 - Bank Holiday

    SDP Holiday Non-ACH Processing Schedule