11.1 Debt Investments

Key Takeaways

  • Debt investments are classified under ASC 320 into Trading, Held-to-Maturity (HTM), or Available-for-Sale (AFS) portfolios, which governs their balance sheet measurement and income statement impacts.
  • Trading securities are reported at fair value with unrealized gains and losses in net income; AFS securities are at fair value with unrealized gains and losses in Other Comprehensive Income (OCI).
  • HTM securities are reported at amortized cost and are subject to the CECL impairment model under ASC 326, which requires estimating lifetime expected credit losses on day one without a fair value floor.
  • AFS debt security impairments are subject to a fair value floor; credit losses are recognized in earnings up to the difference between amortized cost and fair value, with any remaining decline recognized in OCI.
Last updated: July 2026

11.1 Debt Investments

Overview of Debt Securities (ASC 320)

Debt securities represent a creditor relationship with an enterprise. Examples include U.S. Treasury securities, municipal bonds, corporate bonds, convertible debt, and commercial paper. Under ASC 320, investments in debt securities are categorized into one of three classifications at acquisition, based on management's intent and ability:

  1. Trading Securities: Debt securities bought and held principally for the purpose of selling them in the near term. They are typically held by active trading accounts.
  2. Held-to-Maturity (HTM) Securities: Debt securities that the reporting entity has the positive intent and financial ability to hold to maturity.
  3. Available-for-Sale (AFS) Securities: Debt securities not classified as trading or HTM. This is a catch-all category.
ClassificationBalance Sheet MeasurementUnrealized Gains/Losses TreatmentCredit Impairment Model
TradingFair ValueNet Income (Earnings)Not applicable (already at fair value through net income)
Available-for-Sale (AFS)Fair ValueOther Comprehensive Income (OCI), net of taxASC 326 (CECL) with Fair Value Floor
Held-to-Maturity (HTM)Amortized CostNot recognized on balance sheet/earningsASC 326 (CECL) Lifetime Expected Credit Losses

Accounting & Valuation Rules

1. Trading Securities

Trading securities are recorded at cost on the transaction date. At each reporting date, the investment is adjusted to its current fair value. Unrealized holding gains and losses are recognized directly in the income statement within net income (FVTNI). Dividend and interest income, including amortization of premiums and discounts, are recognized in earnings.

Journal Entry for Fair Value Adjustment (Gain):

Dr. Fair Value Adjustment (Trading)       $XX,XXX
   Cr. Unrealized Gain on Trading (Earnings)      $XX,XXX

2. Held-to-Maturity (HTM)

HTM securities are initially recorded at cost (including transaction costs). Premiums and discounts are amortized over the life of the security using the effective interest method, which adjusts interest income to reflect the constant effective yield. The carrying value of HTM securities on the balance sheet is their amortized cost. Unrealized gains and losses are ignored unless an impairment must be recognized.

Journal Entry for Interest Receipt and Discount Amortization:

Dr. Cash                                   $X,XXX
Dr. Investment in HTM Debt (Amortization)    $XXX
   Cr. Interest Revenue                            $X,XXX

3. Available-for-Sale (AFS)

AFS securities are recorded at cost. Like trading securities, they are remeasured to fair value at each reporting date. However, the unrealized holding gains and losses (except for those related to credit losses or foreign exchange) are recorded in OCI, net of tax. When an AFS security is sold, the accumulated unrealized gains or losses in Accumulated OCI (AOCI) are reclassified into earnings.

Journal Entry for Fair Value Adjustment (Loss):

Dr. Unrealized Loss on AFS (OCI)           $X,XXX
   Cr. Fair Value Adjustment (AFS)                 $X,XXX

Transfers Between Categories

Transfers between debt security classifications are accounted for at fair value on the transfer date. The accounting treatment of unrealized gains or losses at the transfer date is as follows:

  • Trading to Any Category: The unrealized gain or loss has already been recognized in earnings and is not reversed.
  • Any Category to Trading: The accumulated unrealized gain or loss at the transfer date is recognized in earnings immediately.
  • HTM to AFS: The security is remeasured to fair value. The unrealized gain or loss is recognized in OCI. This transfer should be rare, as frequent transfers from HTM can call into question the entity's intent to hold other HTM securities to maturity.
  • AFS to HTM: The security is transferred at its fair value. The unrealized gain or loss in OCI is not immediately recognized in earnings but is amortized over the remaining life of the security as an adjustment of yield, offsetting the amortization of the premium/discount.

Impairment of Debt Securities (CECL - ASC 326)

With the adoption of the Current Expected Credit Loss (CECL) model under ASC 326, the accounting for impairments has changed significantly.

HTM Impairment

Because HTM securities are carried at amortized cost, they are subject to the CECL model, which requires the estimation of expected credit losses over the asset's contractual life. Under CECL:

  • Expected credit losses are recognized on day one of acquisition.
  • The entity records a credit loss expense and an allowance for credit losses (a contra-asset account).
  • There is no fair value comparison required; impairment is based on expected cash flow shortfalls, regardless of whether fair value has declined below amortized cost.
  • Historical loss experience, current conditions, and reasonable and supportable forecasts are utilized.

Journal Entry:

Dr. Credit Loss Expense                    $X,XXX
   Cr. Allowance for Credit Losses (HTM)          $X,XXX

AFS Impairment

Because AFS securities are already carried at fair value on the balance sheet, a different impairment model applies. When the fair value of an AFS debt security is below its amortized cost, the entity must determine whether the decline is credit-related.

  1. Intent to Sell or Required to Sell: If the entity intends to sell the security, or it is more-likely-than-not that the entity will be required to sell the security before recovering its amortized cost, the investment is written down to fair value. The entire difference between amortized cost and fair value is recognized in earnings as a write-down.
  2. No Intent or Requirement to Sell: If the entity does not intend to sell and it is not more-likely-than-not that it will be required to sell, the entity must determine if a credit loss exists (i.e., whether the present value of cash flows expected to be collected is less than the amortized cost).
    • Credit Loss Component: Recognized in earnings through an allowance for credit losses.
    • Non-Credit Loss Component: Recognized in OCI (representing market fluctuations, interest rate movements, etc.).
    • Fair Value Floor Rule: The allowance for credit losses is capped at the amount by which fair value is below amortized cost. The credit loss cannot exceed the total decline in fair value.

Journal Entry:

Dr. Credit Loss Expense                    $X,XXX
   Cr. Allowance for Credit Losses (AFS)          $X,XXX

If the credit quality subsequently improves, the allowance can be reversed (credited) with a corresponding benefit recognized in earnings. This is a key difference from the old GAAP rules (under which recovery was not permitted).


Comprehensive Example

On January 1, Year 1, Omega Corp purchases a 5-year, 6% corporate bond with a face value of $100,000 for $95,788, yielding an effective interest rate of 7%. Omega classifies the bond as Available-for-Sale (AFS). Interest is payable annually on December 31.

1. Initial Recording

Dr. Investment in AFS Debt Securities     $95,788
   Cr. Cash                                       $95,788

2. Year 1 Interest Receipt (December 31, Year 1)

Using the effective interest method:

  • Interest received = $100,000 * 6% = $6,000
  • Interest revenue = Carrying Value * Yield = $95,788 * 7% = $6,705
  • Amortization of discount = $6,705 - $6,000 = $705
  • New carrying value = $95,788 + $705 = $96,493
Dr. Cash                                   $6,000
Dr. Investment in AFS Debt Securities         $705
   Cr. Interest Revenue                            $6,705

3. Year 1 Fair Value Measurement

On December 31, Year 1, the fair value of the bond is $94,000 due to a rise in market interest rates. The total decline below amortized cost is $96,493 - $94,000 = $2,493. Omega determines that there are no credit issues with the issuer and it has no intent or requirement to sell the security. The entire loss is non-credit related.

Dr. Unrealized Loss on AFS Securities (OCI) $2,493
   Cr. Fair Value Adjustment (AFS)                 $2,493

4. Year 2 Credit Impairment Evaluation

On December 31, Year 2, interest is received and amortized (assume new amortized cost is $97,248). However, due to the issuer's deteriorating financial health, the fair value drops to $88,000. The total decline is $97,248 - $88,000 = $9,248. Omega estimates that the present value of expected cash flows to be collected is $91,000 (meaning expected credit loss is $97,248 - $91,000 = $6,248).

Since Omega does not intend or expect to be required to sell:

  • Credit loss = $6,248 (recognized in earnings via allowance)
  • Total decline = $9,248. The remaining $3,000 ($9,248 - $6,248) is recognized in OCI.
Dr. Credit Loss Expense                    $6,248
   Cr. Allowance for Credit Losses (AFS)          $6,248
Dr. Unrealized Loss on AFS Securities (OCI) $3,000
   Cr. Fair Value Adjustment (AFS)                 $3,000

This comprehensive approach ensures that credit-related risk is recognized in net income immediately, while general market fluctuations are kept in OCI.

Test Your Knowledge

An entity holds a debt security classified as available-for-sale (AFS). At the reporting date, the security's amortized cost is $100,000, and its fair value is $85,000. The entity does not intend to sell the security, and it is not more-likely-than-not that it will be required to sell the security before recovery. However, the entity projects that the present value of cash flows expected to be collected is $80,000, indicating an expected credit loss of $20,000. Under ASC 326, what amount should the entity record as credit loss expense in earnings?

A
B
C
D
Test Your Knowledge

Which of the following statements is correct regarding the accounting for credit impairments of debt securities under the CECL model (ASC 326)?

A
B
C
D
Test Your Knowledge

When a debt security is transferred from the available-for-sale (AFS) classification to the held-to-maturity (HTM) classification, how is the accumulated unrealized gain or loss previously recognized in Accumulated Other Comprehensive Income (AOCI) handled?

A
B
C
D