ediverse

Type to search across standards, messages, tools and glossary.

ediverse Explore the platform

Spotlight PEPPOL BIS Billing 3.0 The EU e-invoicing mandate is here — France Sept 2026, Belgium Jan 2026, Germany 2025.

— 01

Foundations

— 02

Standards

— 03

Flagship messages

— 04

Tools

X12 827 — Financial Return Notice

The 827 notifies the return of a financial transaction — NSF check, ACH return, wire reject — from a receiving bank to the originating bank and the originator client.

Purpose

The 827 documents a payment return: NSF check (non-sufficient funds), ACH return (reason code Rxx), wire reject, ACH disputes. It carries the formal reason code and feeds the return processing chain.

It is governed by NACHA operating rules for ACH, ANSI X9 for checks. Acknowledged by 997. Critical for the collection chain.

Envelope structure

The 827 travels within the three X12 envelope levels (ISA/IEA, GS/GE with functional group FN, and ST/SE). Didactic example in release 004010:

x12 example-827.x12 
ISA*00*          *00*          *ZZ*RECEIVINGBANK *ZZ*ORIGINATINGBK *260515*1130*U*00401*000000827*0*P*>~
GS*FN*RECEIVINGBANK*ORIGINATINGBK*20260515*1130*1*X*004010~
ST*827*0001~
BGN*00*RTN-2026-3300*20260515~
N1*PR*ACME RECEIVING BANK*24*EIN-RBANK~
N1*OB*XYZ ORIGINATING BANK*24*EIN-OBANK~
REF*ZZ*ORIG-TRANSACTION-2026-9911~
REF*ZZ*RETURN-REASON-R01-NSF~
AMT*ZZ*1250.00~
DTM*036*20260515~
SE*9*0001~
GE*1*1~
IEA*1*000000827~

Common segments

  • Header — ST, BGN.
  • Banks — N1*PR (Receiving), N1*OB (Originating).
  • Original transaction — REF*ZZ.
  • Reason code — REF*ZZ (R01, R02, R03...).
  • Amount / date — AMT*ZZ, DTM*036.
  • Summary — SE.

Common pitfalls

  • NACHA return window: R-codes have different windows (2 banking days for NSF, 60 calendar days for unauthorized); a 827 out of window is rejected.
  • Re-presentation rules: an ACH NSF return can be re-presented up to 2 times; a 3rd attempt violates NACHA rules.
  • Notification of Change (NOC): an account misroute triggers a NOC, not a return — a 827 with the wrong reason confuses both.

Documentation

The code 827 and the name Financial Return Notice are public and listed on x12.org/products/transaction-sets. The complete structure of loops, qualifiers and code lists is distributed by DISA via the proprietary Implementation Guides (TR3). ediverse.io covers only public concepts, the envelope and didactic examples.