ACH Customer Service Numbers Home» ACH» ACH Service Support Helpline NumbersFor General Inquiries Call at: 304-480-7227 Tax Refund Or Federal Payment: 800-304-3107 Treasury Department: 205-912-6155 Hearing Impaired Customers: 800-877-8339 Cross Servicing: 888-826-3127 Philadelphia And Kansas City Financial Centers: 855-868-0151 Internal Revenue Service: 800-829-1040 Social Security Administration: 800-772-1213 Congressional Inquiries: 202-504-3535 Media Inquiries: 202-504-3535 Office Of Legislative And Public Affairs: 202-504-3502 Kansas City Financial Center: 816-414-2100 Mailing Addresses: Department of the Treasury Bureau of the Fiscal Service 3201 Pennsy Drive, Building E Landover, MD 20785Corporate Address: 200 3rd Street, Avery 5I Parkersburg, WV 26106Email Your Inquiries At: CongressionalInquiries@fiscal.treasury.govProblem Solution Problem Solution: ACH has provided answer to all possible quires on their web portal that covers common issues & problems, instructions, guidance, etc.How To Contact ACH Via Message?Contact us: You can write a text message to ACH for any issue through the contact us page of www.fiscal.treasury.gov/. Assistance ACH?Register Complaint: The facility is available to register a complaint/grievance against ACH at their portal.ACH Current Jobs?Job/Placement: The current job openings at ACH can be found easily right from here.ACH is known as Automated Clearing House is a primary system that is used by organizations for electronic funds transfer. The regulations for ACH are in 31 CFR Part 210 and the regulations discuss rights as well as liabilities of all those individuals who are involved in the system of ACH like government agencies, Federal Reserve banks, financial institutions, and people.