RBNZ Banking Supervision Handbook: BS3B and BS3C Disclosure Statements
|
|
| Regulator |
Reserve Bank of NZ |
| Jurisdiction |
NZ |
| Status |
live |
| Applicability |
Platform |
BS3B (General Disclosure Statement) and BS3C (Simplified Disclosure Statement) are the RBNZ
Banking Supervision Handbook standards governing public disclosure for registered banks. BS3B
applies to all locally incorporated registered banks; BS3C provides a simplified regime available
to smaller banks that meet specified balance sheet and complexity criteria.
Disclosure statements must be published quarterly and annually, covering capital adequacy, credit
quality, liquidity, related party exposures, and key financial information. The annual disclosure
statement must be audited by an RBNZ-acceptable external auditor (see BS4). The
quarterly statements require auditor-applied agreed-upon procedures.
BS3B and BS3C are being superseded by the DTA Disclosure Standard, which
takes effect 1 December 2028. Until that date, BS3B/BS3C remain the operative disclosure
requirements for registered banks.
Compliance register
This register maps every material obligation under BS3B/BS3C to the platform control or
institutional process that satisfies it. It is the static traceability layer for the Totara
compliance report — dynamic data (module build status, test evidence, control test dates) is
overlaid at runtime.
Scope legend
| Symbol |
Meaning |
| 🤖 Automated |
Platform enforces or performs the obligation. Primary control mode is GATE, AUTO, CALC, or ALERT. Human action is not required in the normal case. |
| 📊 Evidenced |
Platform captures the evidence trail automatically. Human compliance decision sits on top. Primary control mode is LOG. |
| 🏛 Institutional |
Obligation is met by a process entirely outside the platform — board governance, finance, legal. Platform may generate evidence inputs but does not own the process. |
| N/A |
Obligation does not apply to this deployment configuration. |
Build legend
| Symbol |
Meaning |
| ✅ |
Module built and deployed |
| 🔨 |
Module planned — not yet built (build_status: Not started) |
| ❌ |
Uncontrolled gap — no module attributed |
Capital adequacy disclosure
| Ref |
Obligation |
Scope |
Policy |
Platform controls |
Build |
| BS3B Sch 3 |
Disclose CET1, Tier 1, and Total Capital ratios in each quarterly and annual disclosure statement |
🤖 Automated |
CLQ-001 |
MOD-033 (CALC) — capital ratios computed continuously from live RWA data; MOD-036 (AUTO) — disclosure data sourced directly from MOD-033 output, no manual extraction |
🔨 |
| BS3B Sch 3 |
Disclose capital buffer headroom (conservation buffer and CCyB) |
🤖 Automated |
CLQ-001 |
MOD-033 (CALC) — buffer headroom figures maintained in the RWA engine; MOD-036 (AUTO) — headroom figures included in the RBNZ return and disclosure data |
🔨 |
| BS3B Sch 3 |
Disclose RWA by risk type (credit, market, operational) |
🤖 Automated |
CLQ-001 |
MOD-033 (CALC) — RWA disaggregated by risk type; MOD-036 (AUTO) — disclosure tables populated with same disaggregation |
🔨 |
Credit quality disclosure
| Ref |
Obligation |
Scope |
Policy |
Platform controls |
Build |
| BS3B Sch 4 |
Disclose credit exposures by asset class, geography, and industry sector |
🤖 Automated |
CLQ-001 |
MOD-033 (CALC) — exposure data disaggregated from live lending portfolio; MOD-036 (AUTO) — credit quality tables populated automatically |
🔨 |
| BS3B Sch 4 |
Disclose impaired assets, provisions, and past-due exposures |
🤖 Automated |
CLQ-003 |
MOD-036 (AUTO) — IFRS 9 stage distribution and provision data sourced from the ECL engine (via MOD-030) with no manual reconciliation |
🔨 |
| BS3B Sch 5 |
Disclose off-balance-sheet credit exposures (undrawn facilities, guarantees) |
🤖 Automated |
CLQ-001 |
MOD-033 (CALC) — credit conversion factor (CCF) applied to off-balance-sheet commitments; MOD-036 (AUTO) — off-balance-sheet disclosure populated from the RWA engine |
🔨 |
Liquidity disclosure
| Ref |
Obligation |
Scope |
Policy |
Platform controls |
Build |
| BS3B Sch 6 |
Disclose liquidity ratios (one-week and one-month mismatch ratios under BS13; LCR/NSFR under DTA) |
🤖 Automated |
CLQ-002 |
MOD-032 (CALC) — LCR and NSFR (and mismatch ratios under BS13) calculated continuously; MOD-036 (AUTO) — liquidity disclosure figures sourced from MOD-032 with no separate calculation |
🔨 |
| BS3B Sch 6 |
Disclose core funding ratio (BS13) |
🤖 Automated |
CLQ-002 |
MOD-032 (CALC) — core funding ratio computed alongside LCR/NSFR; MOD-036 (AUTO) — core funding ratio included in the disclosure data bundle |
🔨 |
| Ref |
Obligation |
Scope |
Policy |
Platform controls |
Build |
| BS3B Sch 7 |
Disclose aggregate connected exposures and individual connected exposures above the prescribed threshold |
🤖 Automated |
CLQ-001 |
MOD-147 (CALC) — related party exposures calculated as percentage of Tier 1 capital; MOD-036 (AUTO) — connected exposure disclosure populated from MOD-147 output |
🔨 |
| BS3B Sch 7 |
Disclose terms of transactions with connected persons and confirmation that they were on arm's length terms |
🏛 Institutional |
CLQ-001 |
MOD-147 (CALC) identifies and quantifies related party exposures. Board sign-off on arm's length attestation is an institutional governance process. |
— |
Publication and timing
| Ref |
Obligation |
Scope |
Policy |
Platform controls |
Build |
| BS3B §5 |
Publish quarterly disclosure statement within two months of each quarter end |
🤖 Automated |
CLQ-001 |
MOD-036 (AUTO) — return assembly scheduled automatically; regulatory calendar triggers the build and submission workflow |
🔨 |
| BS3B §5 |
Publish annual General Disclosure Statement within three months of each balance date |
🤖 Automated |
CLQ-001 |
MOD-036 (AUTO) — annual return assembled on the same automated schedule as quarterly; annual includes additional audit sign-off workflow |
🔨 |
| BS3B §6 |
Make disclosure statements freely available on the bank's website |
🏛 Institutional |
CLQ-001 |
MOD-036 outputs the formatted disclosure document; publication to the public website is an institutional process (marketing / finance operations). |
— |
| BS3B §7 |
Have annual disclosure statement audited; have auditor apply agreed procedures to quarterly statements |
🏛 Institutional |
CLQ-001 |
MOD-036 provides data lineage and the auditable return package. Audit engagement and findings are institutional. |
— |
| Obligation |
Owner |
Platform evidence input |
| Board sign-off on each disclosure statement |
Board |
MOD-036 provides the complete disclosure data package for board review |
| CEO / CFO sign disclosure attestation |
CEO / CFO |
MOD-036 provides the supporting data; attestation is an institutional governance act |
| External auditor engagement and reporting |
CFO / Board Audit Committee |
MOD-036 provides auditable data lineage from source ledger to return figure |
| Website publication of disclosure statements |
CFO / Marketing |
MOD-036 produces the formatted document; website publication is institutional |
Coverage summary
| Area |
Total obligations |
Platform automated 🤖 |
Platform evidenced 📊 |
Institutional 🏛 |
N/A |
| Capital adequacy |
3 |
3 |
0 |
0 |
0 |
| Credit quality |
3 |
3 |
0 |
0 |
0 |
| Liquidity |
2 |
2 |
0 |
0 |
0 |
| Related party |
2 |
1 |
0 |
1 |
0 |
| Publication and timing |
4 |
2 |
0 |
2 |
0 |
| Total |
14 |
11 (79%) |
0 (0%) |
3 (21%) |
0 (0%) |
All attributed modules are currently build_status: Not started. The DTA Disclosure Standard
(effective 1 December 2028) supersedes BS3B/BS3C — see
nz-dta-disclosure for the forward obligation register.
| Policy |
Title |
| CLQ-001 |
Capital Adequacy Policy |
| CLQ-002 |
Liquidity Risk Management Policy |
| CLQ-003 |
Capital Planning & Stress Testing Policy |
See D01 Capital & Liquidity for the full risk domain.
Official documentation
Policies referencing this standard
- CLQ-001 — Capital Adequacy Policy
- CLQ-003 — Capital Planning & Stress Testing Policy
Compiled 2026-05-22 from source/entities/regulations/nz-bs3b-bs3c.yaml