Welcome to NACHA Tools
Test and analyze ACH files using the NACHA library.
ACH Testing
Parse, validate, and analyze ACH files. Paste file content or upload a .ach file for instant analysis.
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FI Lookup
Look up any U.S. financial institution by routing number or name using FedACH and Fedwire directories.
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Return Codes
Full R01–R85 return code library with descriptions, categories, and recommended actions.
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NOC Codes
Notification of Change (C01–C09) code reference with field correction suggestions and an addenda parser.
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Addenda Parsing
Parse Type 7 addenda records field-by-field. Reference layouts for CCD+, CTX, and TRX formats.
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OFAC Screening
Screen names against the U.S. Treasury OFAC SDN list with fuzzy matching for individuals, entities, vessels, and aircraft.
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