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

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X12 263 — Residential Mortgage Insurance Application Response

The 263 transmits the response of a PMI (Private Mortgage Insurance) insurer to a coverage request on a residential loan.

Purpose

The 263 documents the PMI decision on an application: approved, declined, modified (adjusted premium, exclusion), pending (additional info needed). It carries rate, coverage amount, duration, exclusions.

It is exchanged downstream of mortgage origination, after a 201 (Residential Loan Application) — typically when LTV > 80% requires PMI. Acknowledged by 997.

Envelope structure

The 263 travels within the three X12 envelope levels (ISA/IEA, GS/GE with functional group IH, and ST/SE). Didactic example in release 004010:

x12 example-263.x12 
ISA*00*          *00*          *ZZ*PMIINSURER    *ZZ*MORTGAGELENDER*260515*1600*U*00401*000000263*0*P*>~
GS*IH*PMIINSURER*MORTGAGELENDER*20260515*1600*1*X*004010~
ST*263*0001~
BGN*00*PMI-RES-2026-0099*20260515~
N1*IN*ACME PMI INSURANCE*24*EIN-PMI~
N1*LE*ACME MORTGAGE LENDER*24*EIN-LENDER~
REF*ZZ*LOAN-2026-0099~
REF*ZZ*PROPERTY-1234-ELM-ST~
DTM*090*20260601~
AMT*PMI*155.00~
PCT*ZZ*0.55~
MSG*APPROVED~
SE*11*0001~
GE*1*1~
IEA*1*000000263~

Common segments

  • Header — ST, BGN.
  • Insurer / Lender — N1*IN, N1*LE.
  • Loan reference — REF*ZZ (loan), REF*ZZ (property).
  • Effective date — DTM*090.
  • Coverage — AMT*PMI (monthly premium), PCT*ZZ (rate), MSG (status).
  • Summary — SE.

Common pitfalls

  • HPA cancellation: the Homeowners Protection Act requires auto-cancel at 78% LTV; the 263 must carry the cancel date to avoid overbilling.
  • Borrower-paid vs lender-paid: BPMI and LPMI have different cancellation rules; confusing both breaks disclosures.
  • Single vs split premium: a single premium (paid at closing) is not the same 263 as monthly premium — distinguish in MSG.

Documentation

The code 263 and the name Residential Mortgage Insurance Application Response 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.