ASC 320
Active
Investments–Debt and Equity Securities
Governs investments in debt and equity securities, including held-to-maturity, trading, and available-for-sale classifications; now primarily governs debt securities after ASU 2016-01.
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Conceptual Framework Linkage
Classification drives measurement, drives where gains/losses land
How a debt security is CLASSIFIED determines whether it is measured at amortised cost or fair value, and – if fair value – whether changes flow through net income or OCI. ASC 320 exists to define these classification categories precisely, since classification (not measurement mechanics per se) is where most of the real judgement, and most divergence from IFRS, actually lives.
A Topic reshaped by ASU 2016-01
ASC 320's TITLE still references both debt and equity securities, but ASU 2016-01 (effective 2018) moved essentially ALL equity security guidance into the newly created ASC 321, leaving ASC 320 to govern primarily DEBT securities today – a naming legacy worth knowing, since the Topic's scope no longer matches its full title.
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Scope – Now Primarily Debt Securities
What remains within ASC 320 today
ASC 320 governs investments in DEBT securities – instruments representing a creditor relationship with the issuer, such as corporate bonds, government securities, and mortgage-backed securities – classified into one of three categories (Section 3). Equity securities (representing an ownership interest) are addressed separately under ASC 321.
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Three Classification Categories
Held-to-maturity, trading, or available-for-sale
CategoryMeasurementGains/losses location
Held-to-maturity (HTM)Amortised costNot remeasured; interest income only in net income
TradingFair valueThrough NET INCOME
Available-for-sale (AFS)Fair valueThrough OCI (recycled to net income on sale)
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Held-to-Maturity – the Positive Intent and Ability Test
A strict, intent-based classification test
HTM classification requires the entity to have BOTH the POSITIVE INTENT and the ABILITY to hold the security to MATURITY – a strict test. Certain SALES do not automatically "taint" the entire HTM portfolio, including sales close to maturity (when interest rate risk is no longer a meaningful factor in fair value), sales after collecting substantially all of the original principal, and sales attributable to specific, isolated, non-recurring circumstances beyond the entity's control.
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Transfers Between Categories
Permitted only in rare circumstances
Transfers of debt securities BETWEEN the three categories are permitted, but transfers INTO or OUT OF the trading category are expected to be RARE, given the near-term-resale intent trading classification implies. Transfers between HTM and AFS also carry specific rules – for example, a transfer OUT of HTM raises questions about whether the entity's positive intent/ability assertion remains valid for its REMAINING HTM portfolio.
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Worked Example – AFS Debt Security Fair Value Movement
Tracking an unrealised gain through OCI, then recycling on sale
Example: Purchase, remeasurement, and sale of an AFS bond
An entity purchases a corporate bond for $1,000,000, classified AFS. At the next reporting date, its fair value has risen to $1,050,000. The entity later sells the bond for $1,080,000.
At remeasurement: Debit AFS security $50,000 / Credit OCI $50,000 (unrealised gain, no net income impact).
At sale: Debit Cash $1,080,000 / Credit AFS security $1,050,000 / Credit Realised gain (net income) $30,000 (the further gain since the last remeasurement) – AND the entity reclassifies the previously deferred $50,000 OCI gain into net income as well, per the recycling mechanic, so total net income recognised on sale reflects the FULL $80,000 gain from original cost.
At sale: Debit Cash $1,080,000 / Credit AFS security $1,050,000 / Credit Realised gain (net income) $30,000 (the further gain since the last remeasurement) – AND the entity reclassifies the previously deferred $50,000 OCI gain into net income as well, per the recycling mechanic, so total net income recognised on sale reflects the FULL $80,000 gain from original cost.
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Disclosure Requirements
What ASC 320 requires
Amortised cost, fair value, and gross unrealised gains/losses by major security type, for each classification categoryContractual maturities of debt securities, in defined maturity bandsProceeds from sales of AFS securities, and gross realised gains/losses reclassified from OCICircumstances of any sale that could call HTM intent/ability into question
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Critical Judgments & Estimates
Where judgement matters most
SIGNIFICANT JUDGEMENTS
Whether the entity genuinely has positive intent AND ability to hold a security to maturityWhether a specific sale genuinely falls within an HTM-non-tainting exception
SIGNIFICANT ESTIMATES
Fair value of debt securities without a readily observable quoted market priceExpected credit losses under ASC 326-30's allowance methodology for AFS securities
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ASC 320 vs IFRS 9 – Intent-Based vs Business-Model Classification
Comparison – ASC 320 vs IFRS 9's debt instrument classification
FeatureUS GAAP (ASC 320)IFRS 9
Classification basisManagement's stated INTENT for each individual security (HTM/trading/AFS)The entity's overall BUSINESS MODEL for managing a group of assets, combined with the CASH FLOW CHARACTERISTICS (SPPI test) of the specific instrument
Number of categoriesThree: HTM, trading, AFSThree (broadly analogous): amortised cost, FVOCI, FVTPL
Reclassification frequencyRare, especially for HTM/tradingReclassification permitted only when the BUSINESS MODEL itself changes – also expected to be rare
"Tainting" consequences of early salesCan call the ENTIRE HTM portfolio's classification into questionIFRS 9's business-model test is somewhat more resilient to occasional sales, since it looks at the OVERALL objective of the business model rather than the intent for each individual instrument
Both frameworks reach broadly similar THREE-CATEGORY outcomes, but via genuinely different underlying LOGIC – an instrument-by-instrument intent test under US GAAP, versus a portfolio-level business-model-plus-cash-flow-characteristics test under IFRS 9 – meaning the classification of an economically identical security can, in edge cases, differ between the two frameworks.
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Statement Mapping
Where every ASC 320 event lands
EventStatement(s) affectedNotes
HTM interest incomeISEffective interest method, no fair value remeasurement
Trading security fair value changeISBoth realised and unrealised, recognised immediately
AFS security unrealised fair value changeOCIDeferred until sale
AFS security soldOCI ISCumulative OCI gain/loss reclassified to net income
AFS credit loss allowanceBS ISPer ASC 326-30, potentially reversible
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Related Topics
Cross-reference map
TopicConnection
ASC 321Governs equity securities, split out from this Topic by ASU 2016-01
ASC 326Supplies the credit loss allowance methodology for AFS debt securities
ASC 820Fair Value Measurement – supplies the general fair value framework applied to trading and AFS securities
Quick-reference glossary preview
Positive intent and ability
The strict dual test required for held-to-maturity classification – a genuine plan AND the financial capacity to hold a security to maturity.
Tainting
A consequence of certain sales that calls the classification of an entity's remaining HTM portfolio into question, potentially requiring reclassification.
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Quick-Reference Glossary
Held-to-maturity (HTM)
A debt security classification requiring positive intent and ability to hold to maturity, measured at amortised cost.
Available-for-sale (AFS)
The residual debt security classification, measured at fair value with unrealised gains/losses through OCI, recycled to net income on sale.
Financial statement key
BS Balance sheet
IS Income statement
SE Statement of changes in equity
OCI Other comprehensive income
SCF Statement of cash flows