CECL explained: current expected credit losses

CECL replaced the incurred loss model in US GAAP and affects every company with receivables, not just banks. This guide explains what CECL requires, which assets it covers, how the estimate is built, and how it compares with IFRS 9.

By Muhammad Bilal, Chartered Accountant. Reviewed by Awais Jameel, Chartered Accountant. 3 minute read.

Short answer

CECL, the current expected credit loss model in ASC 326, requires companies to recognize an allowance for credit losses equal to the lifetime expected credit losses on financial assets measured at amortized cost, from the day the asset is recognized. The estimate uses historical loss experience, current conditions and reasonable and supportable forecasts, reverting to historical experience beyond the forecast period. CECL applies to loans, held-to-maturity debt securities, trade receivables, contract assets, net investments in leases and many off-balance-sheet credit exposures.

At a glance

Measure
Lifetime expected credit losses
From
Day one
Inputs
History, current conditions, forecasts
Scope
Amortized cost assets and off-balance-sheet exposures
Not for
Available-for-sale debt securities
Excel
ECL provision matrix
CECL explained: current expected credit lossesMeasure: Lifetime expected credit losses; From: Day one; Inputs: History, current conditions, forecasts; Scope: Amortized cost assets and off-balance-sheet exposures; Not for: Available-for-sale debt securities; Excel: ECL provision matrix.KEY FACTS AT A GLANCECECL explained: current expected credit lossesMeasureLifetime expected creditlossesFromDay oneInputsHistory, currentconditions, forecastsScopeAmortized cost assets andoff-balance-sheetexposuresNot forAvailable-for-sale debtsecuritiesExcelECL provision matrixTax BakersCECL explained: current expected credit lossesMeasure: Lifetime expected credit losses; From: Day one; Inputs: History, current conditions, forecasts; Scope: Amortized cost assets and off-balance-sheet exposures; Not for: Available-for-sale debt securities; Excel: ECL provision matrix.KEY FACTS AT A GLANCECECL explained: current expectedcredit lossesMeasureLifetime expected credit lossesFromDay oneInputsHistory, current conditions, forecastsScopeAmortized cost assets and off-balance-sheetexposuresNot forAvailable-for-sale debt securitiesExcelECL provision matrixTax Bakers
Key facts at a glance, as set out in this guide.

What does CECL require?

An allowance for credit losses that reflects all the losses expected over the contractual life of financial assets measured at amortized cost, adjusted for expected prepayments. The allowance is deducted from the amortized cost basis, so the balance sheet shows the net amount expected to be collected. Changes in the allowance are recognized in earnings as credit loss expense.

How is the CECL estimate built?

Building a CECL allowanceBuilding a CECL allowance1Pool theassetsSimilar riskcharacteristics2HistoricallossesLoss experiencefor the pool3AdjustFor conditionsand forecasts4RevertTo history afterthe forecast5LifetimeallowanceRecognizedfrom day one
Lifetime losses from day one, based on history adjusted for current conditions and forecasts.
  • Pooling: assets with similar risk characteristics are evaluated together; assets that do not share characteristics are evaluated individually.
  • Historical loss information is the starting point, adjusted for differences in current asset characteristics and conditions.
  • Reasonable and supportable forecasts of future economic conditions adjust the estimate for the period over which the company can forecast.
  • Reversion: beyond that period, the estimate reverts to historical loss information, immediately or on a straight-line or other systematic basis.

No single method is required; see CECL methods.

Why did the FASB replace the incurred loss model?

Under the old model, losses were recognized only when they were probable and had been incurred, which the financial crisis showed was "too little, too late": allowances built up only after borrowers were already in trouble. CECL brings forward recognition to when assets are originated or bought, using forecasts as well as history.

What did CECL change for companies that are not banks?

Trade receivables, contract assets and lessors' net investments in leases now carry an allowance for expected losses even when every customer is paying on time. For most commercial companies with short-term receivables, the change in the allowance was modest, but the process and documentation needed to support it became more formal.

What about purchased assets with credit deterioration?

Financial assets bought with more than insignificant credit deterioration since origination are recorded with an allowance at purchase that is added to the purchase price, rather than charged to earnings, so no day one loss arises. Later changes in the allowance go through earnings.

Which assets does CECL cover?

In scopeNot in scope
Loans and held-to-maturity debt securitiesAvailable-for-sale debt securities (separate model in ASC 326-30)
Trade receivables and contract assetsAssets measured at fair value through net income
Net investments in leases (lessor)Operating lease receivables (ASC 842 applies)
Loan commitments not unconditionally cancellable, financial guaranteesLoans between entities under common control

A simple example

A lender originates a five-year loan portfolio of $10 million. Its historical lifetime loss rate for similar loans is 2.0%, and its economic forecast for the next two years is somewhat worse than the historical average, adding 0.3 points. On day one it records an allowance of $230,000: Dr Credit loss expense, Cr Allowance for credit losses. Under IFRS 9, the same portfolio in stage 1 would carry only 12 months of expected losses.

Can the expected loss be zero?

Yes, where historical experience and current conditions support it, such as US Treasury securities or assets fully secured by cash collateral. A company still has to assess and document why no allowance is needed.

How is the allowance presented?

As a deduction from the amortized cost of the related assets, so receivables and loans are shown at the net amount expected to be collected. The allowance for off-balance-sheet exposures, such as loan commitments, is a separate liability.

When did CECL take effect?

For SEC filers other than smaller reporting companies, fiscal years beginning after December 15, 2019. For all other entities, including private companies, fiscal years beginning after December 15, 2022. CECL was introduced by ASU 2016-13. For receivables, see CECL for trade receivables, and for IFRS, IFRS 9 vs CECL.

Need help applying the standards?

Our Chartered Accountants help finance teams and students apply US GAAP and IFRS to real transactions.

Questions people ask

What is CECL?

The current expected credit loss model in ASC 326, which requires lifetime expected credit losses to be recognized from day one for financial assets at amortized cost.

Does CECL apply to trade receivables?

Yes. Trade receivables and contract assets are in scope, along with loans, held-to-maturity securities and net investments in leases.

When did CECL become effective for private companies?

For fiscal years beginning after December 15, 2022.

Does CECL apply to available-for-sale debt securities?

No. They follow a separate credit loss model in ASC 326-30.

Sources

Every fee, date and rule on this page was taken from these official and primary sources.

  1. FASB Accounting Standards Codification: Topic 326, Financial Instruments: Credit Losses
  2. Financial Accounting Standards Board

Rules and fees change. If you are reading this long after October 4, 2026, confirm the figures with the source before you rely on them.

More in ASC 326

This guide is general information. It is not tax or legal advice for your situation.