Financial Reporting · Financial instruments

Convertible Debt and Compound Instruments in ACCA FR

Updated 11 October 2026 · Fact-checked

A compound instrument, such as a convertible loan note, has a liability part and an equity part. Under IAS 32 you value the liability by discounting the cash flows at the market rate for similar non-convertible debt. The equity part is the balancing figure: proceeds minus the liability.

Understand Convertible Debt and Compound Instruments

A convertible loan note pays interest and is repaid in cash, or the holder can swap it for shares. So it has two features. It is a debt, because the company may have to pay cash. It also gives the holder an option on shares, which is an equity feature.

IAS 32 says you must not show the whole amount as debt. You split it at the date of issue. This is called split accounting. The two parts are a liability component and an equity component.

Here is why the split works. Investors accept a lower coupon on convertible notes because they get the conversion option. If the notes were plain debt, the company would pay a higher rate. So you find the value of plain debt first. You discount the actual cash flows (interest and repayment) at the market rate for similar debt without the conversion option. That gives the liability. The conversion option is worth the rest of the proceeds, so equity is the balancing figure.

After the split, the liability is measured at amortised cost using the effective interest method. The finance cost uses the market rate, not the coupon rate. The equity component is not remeasured. It stays in equity, usually as a separate component, until conversion or redemption.

If the holder converts, you remove the carrying amount of the liability and credit share capital and share premium. The equity component normally stays in equity, though it may be moved between components of equity. No gain or loss arises on conversion under the original terms.

Key rules to remember

Liability component: Liability = PV of interest + PV of redemption amount, discounted at the market rate for non-convertible debt; Use the rate for similar debt without the conversion option. It is usually given in the question.
Equity component: Equity = Proceeds of issue − Liability component; It is a balancing figure. Never discount it.
Finance cost: Finance cost = Opening liability × effective (market) rate; Do not use the coupon rate. The cost is higher than the cash interest paid.
Closing liability: Closing liability = Opening liability + Finance cost − Cash interest paid; This is the amortised cost roll-forward.
Cash interest: Interest paid = Nominal value × coupon rate; This is the amount of cash that leaves the business.
Conversion: Dr Liability (carrying amount at conversion); Cr Share capital and share premium; The equity component remains in equity.

How to solve Convertible Debt and Compound Instruments questions

Use this method for any compound instrument question. Lay it out in a short working so the marker can follow it.

1Read the terms: nominal value, issue price, coupon rate, term, redemption terms and the market rate for non-convertible debt.
2Work out the annual cash interest: nominal value × coupon rate.
3List the cash flows by year: interest each year, plus the redemption amount in the final year.
4Discount them at the market rate using the discount factors given. Add them to get the liability component.
5Subtract the liability from the proceeds to get the equity component.
6Build the amortised cost table: opening balance, finance cost at the market rate, interest paid, closing balance.
7Post the entries: Dr Cash; Cr Liability; Cr Equity at issue. Then Dr Finance cost; Cr Liability; Cr Cash for the interest each year.
8If asked, show the extracts: liability under non-current or current as appropriate, the equity component, and the finance cost in profit or loss.

Quickest way: Three-line split, then one-line roll-forward

When to use it: Use this in Section A or B objective tests, or when you are short of time in a Section C question. You are given factors and need one or two numbers.

Calculate PV of interest as coupon × annuity factor, and PV of principal as redemption × discount factor, both at the market rate.
Add the two to get the liability. Equity is proceeds minus liability.
For the year-end balance, use: opening × (1 + market rate) − cash interest.
Check that the finance cost is higher than the cash interest. If not, you have used the wrong rate.

Common mistakes in Convertible Debt and Compound Instruments

Showing the whole proceeds as a liability
The instrument is called a loan note, so students treat it as plain debt.
Fix: Always check whether it is convertible. If the holder can take shares, split it into liability and equity.
Discounting at the coupon rate
The coupon rate is the first rate in the question.
Fix: Discount at the market rate for similar non-convertible debt. Discounting at the coupon rate would give back the nominal value and no equity.
Calculating the finance cost as the coupon
Students confuse the cash paid with the expense.
Fix: Finance cost = opening liability × market rate. The coupon is only the cash paid.
Calculating equity by discounting or remeasuring it
Students think both parts are valued separately.
Fix: Equity is the balancing figure at issue. Do not remeasure it later.
Using the wrong annuity or discount factor year
Interest is paid every year but principal only once.
Fix: Use the annuity factor for the interest and the single-year discount factor for the redemption. Both use the same number of years.
Recording a gain or loss when notes are converted
Students compare the carrying amount with the fair value of shares.
Fix: On conversion under the original terms, transfer the carrying amount of the liability to share capital and premium. No profit or loss arises.

Worked examples

Example 1

On 1 January 20X1 Lark issues 2,000 convertible loan notes of $1,000 each at par. They carry interest of 3% a year, paid on 31 December, and are redeemable at par on 31 December 20X3, or convertible into shares. The market rate for similar non-convertible debt is 8%. At 8%, the three-year annuity factor is 2.577 and the three-year discount factor is 0.794. Calculate the liability and equity components at issue and the liability at 31 December 20X1.

Show the solution

Proceeds = 2,000 × $1,000 = $2,000,000.
Annual cash interest = $2,000,000 × 3% = $60,000.
PV of interest = $60,000 × 2.577 = $154,620.
PV of redemption = $2,000,000 × 0.794 = $1,588,000.
Liability component = $154,620 + $1,588,000 = $1,742,620.
Equity component = $2,000,000 − $1,742,620 = $257,380.
Finance cost for 20X1 = $1,742,620 × 8% = $139,410 (rounded).
Closing liability = $1,742,620 + $139,410 − $60,000 = $1,822,030.

Answer: Liability at issue $1,742,620; equity component $257,380; finance cost for 20X1 $139,410; liability at 31 December 20X1 $1,822,030.

Example 2

Heron issues $1,000,000 of 5% convertible loan notes at par on 1 April 20X1. Interest is paid annually in arrears. The notes are redeemable at par after three years, or convertible into shares. The market rate for similar non-convertible debt is 9%. At 9%, the three-year annuity factor is 2.531 and the three-year discount factor is 0.772. Heron's year end is 31 March. Show the amounts in the financial statements for the year ended 31 March 20X2.

Show the solution

Annual cash interest = $1,000,000 × 5% = $50,000.
PV of interest = $50,000 × 2.531 = $126,550.
PV of redemption = $1,000,000 × 0.772 = $772,000.
Liability at issue = $126,550 + $772,000 = $898,550.
Equity component = $1,000,000 − $898,550 = $101,450.
Finance cost = $898,550 × 9% = $80,870 (rounded, from $80,869.5).
Closing liability = $898,550 + $80,870 − $50,000 = $929,420.
Entries at issue: Dr Cash $1,000,000; Cr Liability $898,550; Cr Equity $101,450. Entries at year end: Dr Finance cost $80,870; Cr Cash $50,000; Cr Liability $30,870.

Answer: Profit or loss: finance cost $80,870. Statement of financial position: non-current liability $929,420 (there is no current portion, because redemption is in more than 12 months), and equity component $101,450 held in equity.

Exam tips

Look for the words convertible, option to convert or conversion rights. They signal split accounting.
Check which rate to use. The question gives a market rate for similar non-convertible debt. That is your discount rate and your finance cost rate.
Show a table of cash flows, factors and present values. Method marks are available in constructed response questions even if the arithmetic slips.
In objective tests, the equity component is often asked on its own. Remember it is proceeds minus the liability, so a small slip in the liability changes it.
Past questions often combine this with finance cost, closing liability and the statement of financial position extract. Practise the full roll-forward, not just the split.

Practice questions from Financial instruments

Convertible Debt and Compound Instruments in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Convertible Debt and Compound Instruments: frequently asked questions

Why is a convertible loan note split into debt and equity?

It contains a contractual obligation to pay cash, which is a liability. It also gives the holder a right to receive a fixed number of shares, which is equity. IAS 32 requires each part to be shown separately.

Which discount rate do I use for the liability component?

Use the market interest rate for similar debt that has no conversion option. This rate is normally given in the question. It is not the coupon rate.

What happens to the equity component when the notes are converted?

It stays in equity. The carrying amount of the liability is transferred to share capital and share premium. No gain or loss is recognised on conversion under the original terms.

Why is the finance cost higher than the interest paid?

The finance cost is charged at the market rate on the liability, which is lower than the nominal value. The coupon is based on the nominal value at a lower rate. The difference is added to the liability each year, so it grows towards the redemption amount.