ACH File Converter

Balanced ACH File

Add or remove an offset entry for bank-specific balanced file requirements.

1

Source ACH/NACHA file

Verify the offset and totals

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Continue with a tool that fits the next step in this workflow.

Balanced and unbalanced delivery models

A balanced file includes an offset that brings file debits and credits into balance. An unbalanced file leaves settlement handling to the ODFI. Follow the bank profile rather than assuming one model is universally correct.

How the offset amount is determined

The offset reflects the net of the payment entries and uses the approved settlement account, routing data, transaction code, and company context.

Settings to confirm with the bank

  • Whether an offset is required or prohibited.
  • The settlement account and routing number.
  • Offset placement, batch treatment, and description.
  • Service class and effective-date requirements.

Controls rebuilt around the offset

Adding or removing an entry changes counts, hashes, debit and credit totals, traces, controls, block count, and padding; the output recalculates these dependent values.

Questions about balanced ACH files

Does every ACH file need an offset entry?

No. The requirement depends on the ODFI and originator setup.

Is a zero net total proof the file is correct?

No. Receiver details, authorization, classification, dates, and controls still need review.

Can the tool choose my settlement account?

No. Use only account and routing values approved by the ODFI.

Which authoritative sources support this page?

Technical explanations are checked against these primary sources. Bank-specific requirements can be narrower than general format guidance.

  1. Nacha ACH File Details — Official record-field guidance, including Batch Header SEC codes and addenda capabilities.
  2. Nacha ACH File Overview — Official explanation of files, batches, entries, controls, and batch grouping.
  3. Nacha: How ACH Works — Official overview of ACH participants, consumer and corporate payments, and authorization responsibilities.
  4. Nacha Operating Rules Topics — Current rule changes and implementation topics published by Nacha.

Sources reviewed August 20, 2026. Nacha owns and maintains the linked materials.