Debt extinguishment: update carrying amount, derecognize debt, and measure gain or loss
Calculate net carrying amount, reacquisition price, and debt-extinguishment gain or loss without mixing in accrued interest.
The decision that earns the point
Classify the item before measuring it
When debt is extinguished, remove its net carrying amount and recognize the difference between that carrying amount and the reacquisition price in current income. Update effective-interest amortization through the reacquisition date first, and keep separately settled accrued interest outside the extinguishment gain or loss.
Exam use
FAR can test whether an exchange or modification is an extinguishment, the net carrying amount after discount, premium, and issuance costs, the reacquisition price, and the resulting gain or loss.
Your scratch-paper plan
Solve it in three moves
- 1
Resolve modification versus extinguishment
Use the debt-exchange or modification facts to determine whether the old obligation continues or must be derecognized under ASC 470-50.
FASB ASC 470-50: Debt Modifications and Extinguishments - 2
Update net carrying amount
Accrue interest and amortize discount, premium, and issuance costs through the extinguishment date before comparing amounts.
FASB ASC 470-50: Debt Modifications and Extinguishments - 3
Compare with reacquisition price
Recognize the difference between the updated net carrying amount and reacquisition price as gain or loss in current income.
FASB ASC 470-50: Debt Modifications and Extinguishments
Worked problem
Work the facts before choosing the answer
After recording interest and amortization through a midyear repurchase date, debt has $500,000 face amount, $8,000 unamortized discount, and $4,000 unamortized issuance costs. The issuer pays a $480,000 reacquisition price excluding accrued interest, which is settled separately.
CPAPass exam analysis using the stated assumptions
Show the work
Net carrying amount is $488,000: $500,000 less the $8,000 discount and $4,000 issuance costs. Carrying amount exceeds the $480,000 reacquisition price by $8,000.
Rule source: FASB ASC 470-50: Debt Modifications and ExtinguishmentsAnswer
Recognize an $8,000 extinguishment gain and derecognize the debt, remaining discount, and remaining issuance costs. Do not include separately settled accrued interest in that gain.
Rule source: FASB ASC 470-50: Debt Modifications and ExtinguishmentsDo it now
Test the same decision with a fresh question
Start with free FAR practice. Create an account only when you want the 5-day no-card CPAPass trial and continued section practice.
The trap and the repair
Common trap
Comparing face amount with cash paid skips unamortized discount, premium, and issuance costs and can reverse or overstate the extinguishment result.
Repair
Roll the debt to the reacquisition date, write one net carrying amount, and compare only that amount with the reacquisition price.
Authority and scope boundary
FASB ASC 470-50 controls debt modifications and extinguishments, including the carrying-amount versus reacquisition-price measurement. The bond-amortization owner retains routine effective-interest schedules, and specialized troubled-debt, conversion, and fair-value-option facts can change the analysis.
2026 Uniform CPA Examination Blueprints and FASB ASC 470-50: Debt Modifications and Extinguishments were reviewed on 2026-08-14. Check a newer authority when the effective date or facts change.
Extinguishment waterfall
Bridge the debt from face amount to the extinguishment result
A correct answer separates the carrying-value rollforward, reacquisition price, and accrued interest before calculating gain or loss.
| Waterfall stage | Amount or decision | Effect on result | Authority |
|---|---|---|---|
| Face amount | $500,000 contractual principal | Starting point, not the comparison amount | FASB ASC 470-50: Debt Modifications and Extinguishments |
| Net carrying amount | $500,000 - $8,000 discount - $4,000 issuance costs | $488,000 after date-of-repurchase updating | FASB ASC 470-50: Debt Modifications and Extinguishments |
| Reacquisition price | $480,000 excluding separately settled accrued interest | Amount compared with carrying value | FASB ASC 470-50: Debt Modifications and Extinguishments |
| Gain or loss | $488,000 - $480,000 | $8,000 gain in current income | FASB ASC 470-50: Debt Modifications and Extinguishments |
After a miss
Repair a debt-extinguishment miss
- 1
Update the amortization schedule through the reacquisition date before opening the extinguishment calculation.
- 2
Rework the example with a $495,000 reacquisition price and explain why the $7,000 result becomes a loss.
- 3
Answer a fresh FAR debt question and label modification or extinguishment before calculating any gain or loss.
Your exam workflow
- Step 1Identify the requirementUse the debt-exchange or modification facts to determine whether the old obligation continues or must be derecognized under ASC 470-50.FASB ASC 470-50: Debt Modifications and Extinguishments
- Step 2Classify the factsAccrue interest and amortize discount, premium, and issuance costs through the extinguishment date before comparing amounts.FASB ASC 470-50: Debt Modifications and Extinguishments
- Step 3Apply the authorityRecognize the difference between the updated net carrying amount and reacquisition price as gain or loss in current income.FASB ASC 470-50: Debt Modifications and Extinguishments
- Step 4Check the outputRecognize an $8,000 extinguishment gain and derecognize the debt, remaining discount, and remaining issuance costs. Do not include separately settled accrued interest in that gain.FASB ASC 470-50: Debt Modifications and Extinguishments
Keep the next step narrow
Quick questions
What is the key rule?
When debt is extinguished, remove its net carrying amount and recognize the difference between that carrying amount and the reacquisition price in current income. Update effective-interest amortization through the reacquisition date first, and keep separately settled accrued interest outside the extinguishment gain or loss.
How can this topic be tested on the CPA Exam?
FAR can test whether an exchange or modification is an extinguishment, the net carrying amount after discount, premium, and issuance costs, the reacquisition price, and the resulting gain or loss.
What mistake most often changes the result?
Comparing face amount with cash paid skips unamortized discount, premium, and issuance costs and can reverse or overstate the extinguishment result. Roll the debt to the reacquisition date, write one net carrying amount, and compare only that amount with the reacquisition price.
Where should I practice the decision?
After the worked example, open the FAR free-practice link and work a fresh question that tests the same decision. If the miss depends on Bond amortization, review that handoff before trying another set.