An insured bank can be examined every 18 months instead of every 12 only if it holds less than $3 billion in total assets, is well capitalized, carries CAMELS composite and management ratings of 1 or 2, is not under any formal enforcement action, and has had no change in control during the prior 12 months. Every one of those conditions has to be true at the same time. Miss one, and the bank returns to the annual cycle that Section 10(d) of the Federal Deposit Insurance Act sets as the baseline for every insured depository institution.1Office of the Law Revision Counsel. 12 USC 1820 – Administration of Corporation
The Default Is Annual
Every insured bank starts on a 12-month full-scope, on-site examination cycle. That applies to national banks supervised by the OCC, state-chartered member banks supervised by the Federal Reserve, and state nonmember banks and savings associations supervised by the FDIC. The 18-month cycle is not a small-bank benefit that arrives automatically. It is an exception a qualifying institution has to earn at each examination and hold continuously.
For state-chartered institutions, the federal regulator and the state banking department often run alternating examination programs, taking the lead in alternating cycles to avoid duplication.2Federal Reserve Bank of Kansas City. How Will I Be Supervised? Whether that coordination applies depends on the state.
The Five Conditions for the 18-Month Cycle
The statute and its implementing regulation set five separate tests. A bank that fails any one of them, for any reason, does not qualify.
- Total assets under $3 billion. The ceiling is a hard number. A bank sitting at exactly $3 billion is not eligible.3eCFR. 12 CFR 337.12 – Frequency of Examination
- Well capitalized. The bank has to meet the well-capitalized thresholds under the prompt corrective action framework and cannot be operating under any agreement or directive requiring it to maintain a specific capital level.4eCFR. 12 CFR Part 6 – Prompt Corrective Action
- Management rating of 1 or 2. The management component of the most recent CAMELS examination has to be a 1 or 2.5Office of the Comptroller of the Currency. Expanded Examination Cycle Eligibility: Final Rule
- Composite rating of 1 or 2. The overall composite CAMELS rating at the most recent examination has to be 1 or 2.3eCFR. 12 CFR 337.12 – Frequency of Examination
- Clean supervisory record. No formal enforcement proceeding or order from the FDIC, OCC, or Federal Reserve can be outstanding, and no party can have acquired control of the bank in the preceding 12 months.1Office of the Law Revision Counsel. 12 USC 1820 – Administration of Corporation
Why Management and Composite Are Both Listed
CAMELS scores each of six components — Capital adequacy, Asset quality, Management, Earnings, Liquidity, and Sensitivity to market risk — on a 1-to-5 scale, then assigns an overall composite on the same scale. A composite 1 means the institution is sound in virtually every respect. A composite 2 means fundamentally sound with minor correctable weaknesses. Anything at 3 or below disqualifies the bank.
The management component is called out separately for a reason. A bank could carry a composite 2 while examiners rate management a 3, if governance weaknesses show up despite otherwise adequate financial results. That bank does not qualify for the 18-month cycle even though its overall score would suggest it should. Both boxes have to be checked.
How the $3 Billion Threshold Got There
Congress has raised the asset ceiling twice in the past decade. Before 2016 it stood at $500 million. The FAST Act lifted it to $1 billion that year.6Federal Deposit Insurance Corporation. Examination Cycle The Economic Growth, Regulatory Relief, and Consumer Protection Act pushed it to $3 billion in 2018.7Federal Deposit Insurance Corporation. Transparency and Accountability – EGRRCPA S 2155 Rulemakings
The number is fixed in the statute. It does not adjust for inflation. Federal banking agencies do have discretionary authority to raise the cap by regulation if they determine a higher amount is consistent with safety and soundness, but no such increase has been made.1Office of the Law Revision Counsel. 12 USC 1820 – Administration of Corporation A growing bank that crosses $3 billion loses eligibility the moment it does, with no transition period built into the law.
What the 18-Month Rule Does Not Cover
Two situations regularly get read into the rule that aren’t part of it.
Newly Chartered Banks
A de novo bank cannot use the 18-month cycle regardless of how small it is or how well it is doing. The OCC requires an interim on-site examination within the first six months and a full-scope examination within the first 12 months, with interim examinations continuing until the de novo designation lifts, which takes at least three years.8Office of the Comptroller of the Currency. Comptrollers Handbook – Bank Supervision Process The FDIC requires a visitation within 12 months and a full-scope compliance examination within 24 months of the charter date.9Federal Deposit Insurance Corporation. Consumer Compliance Examination Manual: II-12 Examination and Visitation Frequency Only after the bank sheds the de novo label, builds a CAMELS track record, and satisfies every statutory condition does the 18-month option open up.
Off-Cycle Examinations
The 12-month and 18-month windows are floors, not ceilings. Regulators can examine any bank at any time when conditions warrant it.10Office of the Comptroller of the Currency. OCC Bulletin 2025-24: Examinations: Frequency and Scope for Community Banks Banks rated 4 or 5 by the Federal Reserve face two examinations in every 12-month period, at least one of them full-scope.2Federal Reserve Bank of Kansas City. How Will I Be Supervised? The FDIC’s Risk Management Manual identifies triggers that can accelerate the timeline, among them significant operating losses, rapidly growing asset concentrations, heavy reliance on brokered deposits, a change in control, officer turnover, adverse audit findings, launch of a new business line, above-market deposit rate advertising, adverse publicity, and anonymous tips.11Federal Deposit Insurance Corporation. Risk Management Manual of Examination Policies Qualifying for the 18-month cycle does not shield a bank from any of these.
What Losing Eligibility Actually Costs
Slipping off the 18-month cycle is rarely the worst consequence of a downgrade. The failure of any single criterion often signals problems that cost more than the extra examination itself.
Capital is the sharpest example. The prompt corrective action framework sorts institutions into five capital categories, and each step below well capitalized triggers additional restrictions.4eCFR. 12 CFR Part 6 – Prompt Corrective Action An undercapitalized bank has to submit a capital restoration plan, faces limits on dividends and management fees, and needs prior approval for expansion. A significantly undercapitalized bank picks up executive compensation restrictions. A critically undercapitalized bank can be barred from core business activities and blocked from paying on subordinated debt. Noncompliance with any directive can lead to enforcement in federal court and civil money penalties against the institution and the individuals responsible.
The OCC can also reclassify a bank downward on the basis of unsafe or unsound conditions even when its raw capital ratios still meet the higher category. A bank that reads as well capitalized on paper but drew a weak component rating for asset quality or earnings can be treated as adequately capitalized, losing 18-month eligibility along with the other benefits of the higher classification.
Ratings also flow into what the bank pays. The FDIC uses CAMELS as a primary input for deposit insurance assessment rates: small institutions rated composite 1 or 2 pay initial base rates roughly from 5 to 18 basis points, while those rated 4 or 5 pay between 18 and 32 basis points.12eCFR. 12 CFR Part 327 Subpart A – In General The OCC adds a supervisory surcharge on top: banks rated 3 pay a 50 percent surcharge on their semiannual assessment, and banks rated 4 or 5 pay a 100 percent surcharge.13Office of the Comptroller of the Currency. Notice of Fees: Semiannual Assessment A bank that falls off the 18-month cycle for rating reasons is usually paying more on both sides at the same time it is being examined more often.