Line4

In forceBanking: Credit risk and exposuresLast checked 11 November 2026

Residential mortgage lending (ARS 223.0)

A regulatory return listed by the Australian Prudential Regulation Authority (APRA), Australia.

Collects information on an ADI's residential mortgage lending. APRA uses it to supervise the firm (prudential supervision). It may also be used by the Reserve Bank of Australia. Source

Official title: Reporting Standard ARS 223.0 Residential Mortgage Lending

The facts

Who files
This Reporting Standard applies to all authorised deposit-taking institutions (ADI) with the exception of: providers of purchased payment facilities (PPFs); and subject to paragraph 4 of this Reporting Standard, foreign ADIs. This Reporting Standard may also apply to the authorised non-operating holding company (NOHC) of an ADI (refer to paragraph 7). Source
How often
Quarterly. Source
Deadline
The information required by this Reporting Standard must be provided to APRA within 35 calendar days after the end of the reporting period to which the information relates. Source
Format
XML, Excel, Web form. A former D2A collection now in APRA Connect: entities can upload XML or Excel or enter the data manually. APRA ended the temporary Alternate Submission Process (which also took XBRL files) for ADI collections from the 31 July 2026 (ARF 210.5), 31 August 2026 (EFS) and 30 September 2026 (other migrated collections) reporting periods. Source
How it is filed
Filing routes recorded for the APRA: APRA Connect; Alternate Submission Process (temporary). See how firms file with the APRA.
Status
In force
Legal basis
Group
Banking: Credit risk and exposures

Templates (1)

The tables and forms inside the return. Plain name first, the APRA's code in brackets.

  • Residential Mortgage Lending (ARF_223_0)

Forms listed in APRA’s APRA Connect taxonomy for this migrated D2A collection (Residential Mortgage Lending). Source

Validation rules

62 rules, as counted from the APRA's published material. Software can run them exactly as published. Source

How they are written: Excel Rules worksheet with an Expression column (APRA Connect expression syntax), a constraint column and a failure message for each rule..

The rules, on apra.gov.au

How they were counted

Rules in the Rules worksheet of the APRA Connect taxonomy whose List Name, Display Text or Forms column names a form of this standard: 62 of the 65 rules in APRA-ADI - Residential Mortgage Lending.xlsx (3 rules in that file name no single form, such as ABN, reporting date and some cross-form checks, and are not counted).

Counts are in the APRA's own unit, so they are not comparable with other regulators' counts.

Public data

Published only added up across firms. Data from this return appear in: Quarterly ADI property exposures statistics (industry totals). Source

Where it is published (Excel)

  • Quarterly ADI property exposures statistics

    Added up across firms · Excel

    Industry totals for commercial property exposures, residential mortgages outstanding and new mortgage approvals, quarterly. Sources named in the notes: ARF 230.0 Commercial Property and ARF 223.0 Residential Mortgage Lending. Source

Official documents (9)

The APRA's own files, with the size and SHA-256 fingerprint of each as downloaded on 11 November 2026, so anyone can tell whether a copy is the same version.

Sources

Every page and document this return's facts were read from.

Knowing exactly what is collected, in what format and under which rules is the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.

Line4's text and records here are free to reuse under CC BY 4.0. Please credit: “Source: Line4 regulatory submissions library (CC BY 4.0), https://www.line4.ai”. The regulators' documents, forms, taxonomies, rules and data belong to them: see APRA's reuse terms. This describes what regulators publish. It is not legal or regulatory advice: always rely on the regulator's own text.

© Australian Prudential Regulation Authority 2024. Material from APRA (https://www.apra.gov.au) is used under the Creative Commons Attribution 4.0 International licence (https://creativecommons.org/licenses/by/4.0/); this library summarises it in plain English and links the originals.

Last checked 11 November 2026.