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Glossary/Effective interest method

What is Effective interest method?

In short

The effective interest method amortizes a bond discount or premium so that interest expense each period equals the bond's carrying amount multiplied by the market rate at issuance.

Key takeaways

  • Cash interest is face value × stated rate; the difference from interest expense is the amortization.
  • With a discount, interest expense rises each period as the carrying amount increases toward face value.
  • Straight-line amortization is allowed only if the result isn't materially different.

Example

Bonds issued for $920,162 with a 6% coupon on $1,000,000 and an 8% market rate: year 1 interest expense is $73,613, cash is $60,000 and discount amortization is $13,613.

Where it's tested

FAR: Long-Term Debt (Bonds & Notes) — study notes, a five-minute revision sheet and practice questions.

Practise: 3 questions

Question 1 of 3 · 0 answered

Bonds with a face amount of $500,000 and an 8% annual coupon are issued for $470,000 when the market rate is 9%. Using the effective interest method, what is interest expense for the first year?

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