, ,

Bank Regulatory Thresholds in 2026: The US Ladder, Tailoring Categories, EU, UK and Japan

Bank regulation is written in tiers, and the tiers are drawn at asset thresholds: cross one and a new set of rules, reports, examinations and expectations applies, usually with a lag of a few quarters and sometimes with a revenue effect on the day. For an internal auditor at a bank the thresholds are the audit universe’s outer edge; for one at a bank approaching a threshold they are the next two years of the plan. This is a reference to the thresholds as they stand in October 2026: the United States ladder from one billion to the global systemically important banks, the four tailoring categories and what each carries, the thresholds that moved in 2025 and 2026 and the ones proposed to move, the European Union, United Kingdom and Japanese tiers, what crossing each line means for the internal audit function, and a worked readiness engagement at an illustrative bank nine billion dollars in assets and a year from the first big line.

It replaces the broader primer on regulatory thresholds across sectors that previously stood at this address; the non-financial material was general and is not reproduced. Figures are as published by the agencies and verified against primary sources and major law-firm summaries on 26 October 2026; several thresholds are now indexed or under proposal, and the status column says which.

In this guide

How thresholds work: measurement, cliffs and indexing

Three mechanical points decide when a rule applies. Most US thresholds are measured on average total consolidated assets over the four most recent quarters as reported on the call report or the FR Y-9C, so a bank crosses a line a few quarters after its balance sheet does; some rules (the Durbin interchange cap, the CFPB supervision line) use a year-end measure with a lag to the following July or the next examination cycle. Thresholds create cliffs: the cost of the rules that start at ten billion dollars is large enough that banks have managed their balance sheets to stay below it, and acquisitions are timed around it. And since 2025 several thresholds are indexed: the FDIC’s November 2025 rule indexes its Part 363 audit thresholds and six other sets to the CPI-W every two years with no downward adjustment, and the March 2026 capital proposal would index its business-indicator and derivatives thresholds the same way, so the figures below will move without a rulemaking. The regulators guide explains how examiners apply the expectations that come with each tier.

The United States ladder

The table runs from the smallest threshold with a governance consequence to the largest. Each row gives what applies at or above the line, the measure, and the status in October 2026. Where a rule is proposed rather than final the row says so; the next section collects the changes.

ThresholdWhat applies at or above itMeasure and timingStatus, October 2026
1 billion dollarsFDICIA annual audit by an independent public accountant (12 CFR Part 363) and an audit committee drawn from the boardTotal assets at the start of the fiscal yearFinal: raised from 500 million by the FDIC’s 25 November 2025 rule, effective for fiscal years from 1 January 2026; indexed to CPI-W every two years
3 billion dollarsThe 18-month examination cycle ends and the annual full-scope examination applies; FR Y-9C reporting for holding companiesTotal assetsFinal (EGRRCPA 2018)
5 billion dollarsFDICIA management assessment of internal control over financial reporting and the auditor’s attestation; audit committee of outside directors independent of management; larger-institution audit committee requirementsTotal assets at the start of the fiscal yearFinal: raised from 1 billion (and 3 billion for the committee rules) by the November 2025 rule, effective 2026; indexed
10 billion dollarsDurbin amendment debit interchange cap (Regulation II); CFPB supervisory and examination authority; the community bank leverage ratio is no longer available and the full risk-based capital rules apply; the Volcker Rule exclusion for small banks ends (the exclusion requires under 10 billion in assets and trading assets under 5 per cent); formal model risk management expectations under SR 11-7 and the OCC bulletin are applied in practice; large-bank CRA evaluation testsDurbin: total assets at the prior year end, cap applies from the following July; CFPB: four-quarter average; capital: average total assetsFinal; an indexing bill in Congress would move this line to 15 billion and has not been enacted
30 billion dollarsFDIC continuous examination program for state non-member banks (raised from 10 billion in 2025); the OCC’s proposed community bank supervision program would define community banks as those below 30 billionTotal assetsFDIC: final, effective 2025; OCC: proposed
50 billion dollarsOCC heightened standards guidelines for risk governance (12 CFR 30, Appendix D): a formal risk governance framework, independent risk management, an internal audit function reporting to the audit committee, board requirements; Regulation YY risk committee and risk management requirements for publicly traded holding companies; intermediate holding company requirement for foreign banks with 50 billion or more of non-branch US assetsAverage total consolidated assets over four quartersFinal, but the OCC proposed on 23 December 2025 to raise the heightened-standards line to 700 billion (comments closed 2 March 2026; reduces covered banks from 31 to five if adopted); Regulation YY and the IHC rule unchanged
75 billion dollars (risk-based indicators)Cross-jurisdictional activity of 75 billion or more moves a firm to Category II regardless of size; weighted short-term wholesale funding of 75 billion or more raises the liquidity coverage ratio from reduced to full and the FR 2052a report from monthly to daily; nonbank assets or off-balance-sheet exposure of 75 billion or more moves a Category IV firm to Category IIIFour-quarter averages from the FR Y-15Final (2019 tailoring rule)
100 billion dollarsCategory IV: enhanced prudential standards, capital planning and the stress capital buffer, supervisory stress tests every other year, FR Y-14 and FR Y-15 reporting, a reduced liquidity coverage ratio where wholesale funding is below 50 billion, liquidity stress testing and buffers, a board risk committee with a risk expert, resolution plans on a targeted cycleAverage total consolidated assetsFinal (2019); the 2023 proposals that would have added long-term debt and the expanded capital approach at this line were not adopted; the March 2026 re-proposal applies the expanded approach to Categories I and II only
250 billion dollarsCategory III: full liquidity coverage ratio and net stable funding ratio, annual supervisory and company-run stress tests, the supplementary leverage ratio, the single-counterparty credit limit, removal of the AOCI opt-out so unrealised securities gains and losses flow through capital, enhanced resolution planning, daily liquidity reportingAverage total consolidated assetsFinal (2019); this was the line the 2018 EGRRCPA raised from 50 billion for enhanced prudential standards
700 billion dollarsCategory II: the full Basel standards including the countercyclical buffer and the enhanced supplementary leverage ratio, full liquidity standards, Pillar 3 disclosure, the expanded risk-based approach under the March 2026 proposalAverage total consolidated assets, or 75 billion of cross-jurisdictional activityFinal (2019); heightened-standards threshold proposed here
Global systemically important banksCategory I: the GSIB surcharge (1.0 to 3.5 per cent), total loss-absorbing capacity and long-term debt, the enhanced supplementary leverage ratio at 5 per cent for the holding company and 6 per cent for the bank, full resolution plans, the Federal Reserve’s large institution supervision programThe method 1 and method 2 GSIB scores from the FR Y-15Final; the GSIB surcharge was re-proposed for recalibration on 27 March 2026 alongside the capital proposal
Significant trading activityThe market risk capital framework (currently at 1 billion of trading assets and liabilities or 10 per cent of assets; proposed at 5 billion or 10 per cent, measured on four-quarter averages)Trading assets and liabilitiesCurrent rule final; new line proposed March 2026

The four tailoring categories

The 2019 tailoring rules sorted banks above 100 billion dollars into four categories by size and the risk-based indicators, and each category carries a package. The table is the package as it stands; the interest rate risk, liquidity risk and market risk guides explain the requirements’ content.

RequirementCategory IV (100–250 billion)Category III (250–700 billion, or 75 billion of nonbank or off-balance-sheet exposure or wholesale funding)Category II (700 billion or more, or 75 billion of cross-jurisdictional activity)Category I (US GSIBs)
Risk-based capitalStandardised approach; AOCI opt-out availableStandardised approach; AOCI flows through capitalExpanded risk-based approach proposed (March 2026) in place of the advanced approaches; AOCI through capitalAs Category II plus the GSIB surcharge
LeverageTier 1 leverage ratioSupplementary leverage ratio 3 per centEnhanced supplementary leverage ratio with bufferEnhanced supplementary leverage ratio 5 per cent holding company, 6 per cent bank
Countercyclical bufferNoYesYesYes
Stress testingSupervisory test every other year; company-run every other year; stress capital bufferAnnual supervisory and company-run testsAnnualAnnual
Liquidity coverage ratioReduced (70 per cent) if wholesale funding below 50 billion; full if 75 billion or more; none below 50 billionFull, or 85 per cent if wholesale funding below 75 billionFullFull
Net stable funding ratioReduced or none, by wholesale fundingFull or 85 per centFullFull
Liquidity reporting (FR 2052a)MonthlyDaily if wholesale funding 75 billion or more, else monthlyDailyDaily
Single-counterparty credit limitNoYesYesYes, with the tighter GSIB-to-GSIB limit
Resolution planningTargeted plans on a three-year cycleEnhancedFull, every two yearsFull, with detailed requirements
Total loss-absorbing capacity and long-term debtNo (the 2023 proposal to extend long-term debt to 100 billion was not adopted)NoNoYes
Risk management (Regulation YY)Board risk committee, chief risk officer, liquidity risk managementSameSameSame

What moved in 2025 and 2026, and what is proposed

The direction reversed between 2023 and 2025. After the March 2023 failures the agencies proposed to extend the expanded capital approach and long-term debt requirements down to 100 billion dollars and discussed lowering other lines; in 2025 and 2026 the finalised and proposed changes raised thresholds and narrowed scope. The table is the list an audit function needs to track.

ChangeAgency and dateContentStatus
FDICIA thresholds raised and indexedFDIC, adopted 25 November 2025, effective 1 January 2026Annual audit from 500 million to 1 billion; ICFR assessment and attestation from 1 billion to 5 billion; audit committee independence tiers to 1 and 5 billion; CPI-W indexing every two years with no downward adjustmentFinal
FDIC continuous examination lineFDIC, 2025From 10 billion to 30 billionFinal
OCC heightened standards lineOCC, proposed 23 December 2025, comments to 2 March 2026From 50 billion to 700 billion; questions on simplifying the independent risk management and internal audit provisions and removing talent-management provisions; the OCC would keep authority to apply the standards to smaller complex banksProposed
OCC community bank programOCC, 2025 and 2026A community bank supervision program for banks below 30 billionProposed
Capital rule re-proposalOCC, Federal Reserve and FDIC, published 27 March 2026, comments to 18 June 2026Expanded risk-based approach for Category I and II only, with optional adoption for others (which brings the AOCI treatment with it on a five-year phase-in); market risk framework for banks with significant trading activity at 5 billion or 10 per cent of assets; operational risk by the business indicator; no 72.5 per cent output floor; aggregate common equity requirements roughly unchanged for the largest holding companies when combined with the GSIB surcharge and stress test changesProposed
GSIB surcharge recalibrationFederal Reserve, proposed 27 March 2026Revisions to the method 2 score and the FR Y-15Proposed
Reputation risk removed from supervisionOCC and FDIC final rule 7 April 2026; Federal Reserve proposal 23 February 2026Not a threshold, but a change to what every tier is examined for; the reputation risk guide covers itFinal (OCC, FDIC); proposed (Federal Reserve)
Threshold indexing legislationCongress, pendingBills that would index the 10, 100 and 250 billion lines (to about 15, 150 and 370 billion) have been introduced and not enactedPending; do not plan on it

The European Union

The EU draws its lines in euros and in supervisory allocation rather than in one ladder. The Single Supervisory Mechanism decides who is supervised directly by the European Central Bank; the Capital Requirements Regulation defines small and large institutions for proportionality; and the Basel III implementation (CRR3 and CRD6) applied from 1 January 2025 with the market risk framework deferred to 1 January 2027.

LineWhat it meansWho it catches
Significant institution (SSM)Direct supervision by the European Central Bank rather than the national authority: ECB-led supervisory review, stress tests, on-site inspections, fit-and-proper decisionsTotal assets above 30 billion euros, or above 20 per cent of the member state’s GDP (and above 5 billion), or one of the three largest banks in a member state, or significant cross-border activity, or direct public financial assistance; about 110 banking groups
Large institution (CRR)The full disclosure and reporting regime; no proportionality reliefsTotal assets above 30 billion euros, or a G-SII or O-SII, or one of the three largest in the member state
Small and non-complex institution (CRR)Simplified net stable funding ratio, reduced disclosure and reporting, simplified market risk and interest rate risk optionsTotal assets up to 5 billion euros with no significant trading or derivatives, not a large institution
Other systemically important institution (O-SII)A capital buffer of up to 3 per cent set by the national authorityScored on size, importance, complexity and interconnectedness by each member state
Intermediate parent undertakingThird-country groups with two or more EU institutions must hold them under a single EU intermediate parentGroup EU assets of 40 billion euros or more
Supervisory review categories (EBA)Category 1 to 4 sets the intensity and frequency of the supervisory review and evaluation processCategory 1 is G-SIIs and O-SIIs; 2 and 3 by size and business model; 4 the rest
Sustainability reporting (CSRD, as amended)Not prudential, but the largest reporting obligation of the decade for the banks it catchesMore than 1,000 employees and 450 million euros of turnover after the February 2026 Omnibus amendments; the ESG auditing guide covers it

The United Kingdom

The UK keeps the Basel standards for all banks but has built a simpler regime for the smallest and retained ring-fencing for the largest retail banks. Basel 3.1 applies from 1 January 2027 with the market risk internal models deferred.

LineWhat it meansWho it catchesStatus
Ring-fencingRetail deposits must sit in a ring-fenced bank separated from investment banking; its own board, capital and liquidityCore (retail) deposits above 35 billion pounds, with a secondary test that exempts groups whose trading assets are below 10 per cent of Tier 1 capitalThreshold raised from 25 to 35 billion by the February 2025 reforms; the May 2026 review proposes a growth allowance of up to 10 per cent of credit-risk risk-weighted assets for otherwise prohibited activities and a three-yearly threshold review from 2028
Small domestic deposit taker (the Strong and Simple regime)A simplified capital and liquidity regime, simplified reporting and disclosure, in place of Basel 3.1Total assets below 20 billion pounds, domestic, no trading book of significance; firms elect inSimplified capital regime applies alongside Basel 3.1 from 2027
Basel 3.1The UK implementation of the final Basel standards: standardised approaches, output floor, operational riskAll firms not in the Strong and Simple regimeFrom 1 January 2027; market risk internal models deferred
Senior Managers and Certification RegimeNamed accountability for prescribed responsibilities, including the oversight of internal auditAll PRA- and FCA-regulated firms; enhanced regime for the largestIn force
Other systemically important institutionA buffer and resolution requirementsScored by the Bank of EnglandIn force

Japan and other jurisdictions

Japan divides its banks by whether they operate internationally rather than by a single size line: internationally active banks apply the full Basel standards with an 8 per cent total capital requirement and the liquidity ratios, while domestic banks apply a domestic standard with a 4 per cent core capital ratio and simpler liquidity expectations. The Financial Services Agency designates the global and domestic systemically important banks with surcharges and resolution requirements. Other jurisdictions follow the same pattern of a systemic tier and a proportionality tier: Canada’s six domestic systemically important banks carry the full Basel standards and a surcharge under the Office of the Superintendent of Financial Institutions; Australia’s prudential regulator applies simplified standards to smaller deposit-takers; Switzerland has rebuilt its regime around a single global bank since 2023; Singapore and Hong Kong designate domestic systemically important banks with higher buffers. For an internal auditor at a group with entities in several jurisdictions, the question is which entity sits in which tier, because the tier decides the local expectations of the function.

What each line means for internal audit

Examiners scale their expectations of the internal audit function to the tier, and the expectations are written down in the interagency policy statement on the internal audit function, the OCC’s heightened standards and the Federal Reserve’s supervisory guidance. The table turns the ladder into an audit-function checklist; the bank audit universe example shows the universe that results at each size and the financial services guide the engagements.

LineWhat examiners expect of internal audit at or above itEngagements that enter the universeCommon gap
1 billionAn audit committee of the board; coordination with the external auditor; an audit plan the committee approvesFinancial reporting process audits; coordination of external audit relianceThe committee is the full board; no written plan
5 billionCoverage of internal control over financial reporting sufficient for management’s assessment; independent audit committeeICFR testing program (the SOX 404 guide applies by analogy); entity-level controlsManagement’s assessment built on the external auditor’s work
10 billionA function proportionate to a bank that is now examined by the CFPB and loses the simplified capital regime; formal model risk management coverage; consumer compliance coverage that matches CFPB priorities; Volcker compliance program where applicableModel risk management (the model risk audit guide), consumer compliance management system (the compliance risk guide), interchange and card program controls, capital calculationNo model inventory; compliance audits scoped to state law only
30 billionContinuous examination means examiners are resident; the function’s reports are read as they issueRegulatory reporting (call report, FR Y-9C) accuracy; issue managementIssue closure on management assertion; the issue validation guide
50 billionUnder the heightened standards: internal audit reports to the audit committee, assesses the risk governance framework at least annually, has a charter, a plan, resources and a quality assurance program that the committee reviews; under Regulation YY: audit coverage of the risk committee’s mandate and the chief risk officer’s programRisk governance framework assessment; independent risk management effectiveness; board reporting; talent and compensation controlsRisk governance framework assessed by the function that owns it; see the auditing ERM guide
100 billionCoverage of capital planning, stress testing, liquidity stress testing, FR Y-14 and FR Y-15 data integrity, resolution planning and the enhanced prudential standards; a function large enough to do it with specialist skillsCapital planning and the stress capital buffer, stress test models and data, liquidity risk management (the liquidity audit program), FR Y-14 data audits, resolution plan controls, board risk committee effectivenessFR Y-14 data audited by sampling the schedules rather than the lineage
250 billion and aboveAll of the above at annual frequency; the single-counterparty credit limit, the full liquidity ratios, AOCI through capital, advanced resolution planningSCCL, LCR and NSFR calculation and reporting, securities portfolio and AOCI controls, market risk (the market risk guide), resolution capabilities testingThe function’s coverage lags the tier change by two years

Worked example: Lakeshore Bancorp prepares to cross ten billion

Lakeshore Bancorp is the illustrative nine-billion-dollar public regional bank used across this site, with a twenty-two person internal audit function. In FY27 its growth plan put total assets over ten billion dollars by the end of FY28, and the audit committee asked internal audit for a readiness engagement: what changes at the line, whether management’s program covered it, and what the function itself had to add. The 280-hour engagement is a model for any bank approaching a threshold.

AreaWhat the audit foundRating
Inventory of consequencesManagement’s crossing plan listed seven consequences; the audit’s inventory, built from the rules, listed fourteen, the missing ones including the loss of the community bank leverage ratio (requiring a full risk-weighted capital calculation the finance team had never run), the large-bank CRA evaluation, the Volcker Rule analysis and the OCC and FDIC model risk expectationsHigh
Durbin interchangeThe revenue effect was modelled (a 30 per cent fall in debit interchange, about 9 million dollars a year) and the timing understood: the cap applies from 1 July of the year after the year-end at which assets exceed ten billionLow
CFPB readinessThe compliance management system had been assessed against the FFIEC manual but not against the CFPB’s supervision and examination manual; complaint data was categorised by product but not by the CFPB’s categories; no fair lending statistical analysis had been performed on the mortgage bookHigh
Model risk managementA model inventory of 23 models with no tiering, no validation schedule and no validation of the allowance model since FY24; examiners apply SR 11-7 and the OCC bulletin in full above the lineHigh
Capital calculationThe bank had used the community bank leverage ratio since 2020; the risk-weighted asset calculation had not been run; the data for the standardised approach (collateral, loan-to-value, exposure classification) was partly manualHigh
Regulatory reportingCall report preparation controls adequate; the FR Y-9C would require new schedules; no reconciliation of risk-weighted assets to the general ledgerMedium
Internal audit functionThe function had no model risk auditor and no consumer compliance specialist; the universe lacked entities for the capital calculation, the Volcker analysis and the fair lending program; the quality assurance program had not been externally assessed in six yearsMedium (self-identified)

Management’s actions, with internal audit’s own: a crossing program with fourteen workstreams and an executive owner; a consumer compliance assessment against the CFPB manual with fair lending analytics; a model risk management framework with tiering and a validation schedule, starting with the allowance and the ALM model; a parallel run of the risk-weighted capital calculation two quarters before crossing, with data lineage documented; and for the function, two specialist hires, four new universe entities, an external quality assessment, and a revised plan that put model risk, consumer compliance and the capital calculation in the two years before and after the line. The annual risk assessment guide covers the plan change and the MRA lifecycle guide what happens when the first examination under the new tier finds what the readiness audit missed.

Frequently asked questions

What happens when a US bank crosses ten billion dollars in assets?

The Durbin amendment caps its debit interchange from the July after the year-end at which it crossed; the CFPB becomes its consumer compliance supervisor; the community bank leverage ratio is no longer available and the full risk-based capital rules apply; the small-bank exclusion from the Volcker Rule ends; the large-bank CRA tests apply; and examiners apply the formal model risk management expectations. The FDIC’s continuous examination program no longer starts here (it moved to 30 billion in 2025). An indexing bill that would move the line to about 15 billion has not been enacted.

What are the four tailoring categories?

The 2019 framework for banks above 100 billion dollars: Category IV (100 to 250 billion) with enhanced prudential standards, stress tests every other year and reduced liquidity rules; Category III (250 to 700 billion, or 75 billion of wholesale funding, nonbank or off-balance-sheet exposure) with annual stress tests, full liquidity ratios, the supplementary leverage ratio and AOCI through capital; Category II (700 billion or more, or 75 billion of cross-jurisdictional activity) with the full Basel standards; and Category I, the US global systemically important banks, with the surcharge, loss-absorbing capacity and the enhanced leverage ratio.

Which thresholds changed in 2025 and 2026?

Final: the FDICIA audit threshold rose to 1 billion dollars and the ICFR threshold to 5 billion from 1 January 2026, both now indexed; the FDIC’s continuous examination line rose to 30 billion. Proposed: the OCC’s heightened standards line from 50 billion to 700 billion (December 2025), an OCC community bank program below 30 billion, and the March 2026 capital re-proposal that confines the expanded risk-based approach to Category I and II and raises the market risk line to 5 billion of trading assets. Not adopted: the 2023 proposals to extend the expanded approach and long-term debt to 100 billion.

What is the heightened standards threshold?

The OCC’s guidelines for risk governance at large national banks apply at 50 billion dollars of average total consolidated assets and require a risk governance framework, independent risk management, an internal audit function reporting to the audit committee, and board standards. In December 2025 the OCC proposed raising the line to 700 billion, which would reduce the covered banks from 31 to five, and asked whether to simplify the internal audit and risk management provisions. As of October 2026 the proposal had not been reported as finalised; the guidelines apply at 50 billion until it is.

How does the EU decide which banks the ECB supervises?

Through the significance criteria of the Single Supervisory Mechanism: total assets above 30 billion euros, or above 20 per cent of the member state’s GDP, or one of the three largest banks in the member state, or significant cross-border activity, or direct public assistance. Significant institutions are supervised directly by the European Central Bank; the rest by national authorities under ECB oversight. The Capital Requirements Regulation separately defines large institutions (30 billion) and small and non-complex institutions (up to 5 billion) for proportionality.

What is the UK ring-fencing threshold?

Thirty-five billion pounds of core retail deposits, raised from 25 billion by the February 2025 reforms, with a secondary test that exempts groups whose trading assets are below 10 per cent of Tier 1 capital. The May 2026 government review kept the threshold, proposed a growth allowance of up to 10 per cent of credit-risk risk-weighted assets for otherwise prohibited activities, and set a three-yearly review of the threshold from 2028.

How should internal audit prepare for a threshold crossing?

With a readiness engagement two years before the line: build the inventory of consequences from the rules rather than from management’s list; test management’s program against it; model the revenue and capital effects; and change the function itself, because examiners will expect specialist coverage (model risk, consumer compliance, capital calculation, stress testing and liquidity at the larger lines) from the first examination under the new tier. The worked example above is the template.

Are the thresholds indexed to inflation?

Some are, since 2025. The FDIC’s Part 363 and six other sets of thresholds adjust to the CPI-W every two years with no downward adjustment; the March 2026 capital proposal would index its business-indicator and derivatives thresholds the same way. The 10, 50, 100 and 250 billion lines are statutory or regulatory fixed figures, and the bills that would index them have not been enacted.

Free PDF · 15 one-page cheat sheets

The Internal Audit Desk Reference, free by email.

GIAS 2024 on one page, the sample-size tables, the risk and control matrix, the five-C finding, the SOX deficiency ladder, the CIA exam at a glance, and nine more. Printable. Written by working auditors.

Free. Confirm your address once; the PDF link follows. Unsubscribe anytime.

Cover of The Internal Audit Desk Reference: fifteen one-page cheat sheets and templates (PDF)
Cover of The Internal Audit Desk Reference: fifteen one-page cheat sheets and templates (PDF)

Free PDF

The desk reference: 15 cheat sheets, one page each.

GIAS map, sample sizes, the RCM, the five-C finding, SOX deficiency ladder, CIA at a glance. Free, printable.

Confirm once; the PDF link follows. Unsubscribe anytime.

Comments

Leave a Reply