𝗪𝗵𝗲𝗻 𝗳𝘂𝗻𝗱𝗶𝗻𝗴 𝗰𝗼𝘀𝘁𝘀 𝗰𝗮𝗻 𝘁𝘂𝗿𝗻 𝗶𝗻𝘁𝗼 𝗮 𝗯𝗹𝗮𝗰𝗸 𝗯𝗼𝘅
In valuation, we spend enormous effort refining cash flows.
But the discount rate is often treated as if it were clean and observable.
In ASEAN, it rarely is.
At the most basic level, “interest expense” itself is often ambiguously defined.
In some markets, it appears as interest expense. In others, it is grouped under financing expense or financing cost — requiring analysts to manually verify what it actually contains.
What sits inside that single line item may include:
Contractual interest on bank loans and bonds
Commitment fees and upfront financing costs
Refinancing costs rolled into the P&L
FX losses embedded in funding structures
Amortisation of financing fees
Fair value losses
Shareholder or related-party financing with non-market terms
All this may be reported under one label.
Why this matters for valuation
What appears as “interest expense” is often more than interest.
It may include FX effects, refinancing costs, fees, and accounting adjustments — depending on how funding is structured and reported.
When these elements are blended together, the true cost of debt can no longer be observed from financial statements alone. At that point, WACC is no longer a reliable estimate indirectly derived from markets.
The deeper issue
Across ASEAN, corporate funding structures differ widely:
Local vs foreign currency debt
Short-term facilities vs rolling refinancing
State-linked lenders vs commercial banks
Implicit guarantees vs pure credit risk
Yet we often plug reported interest expense into valuation models
as if it reflected a comparable and consistent funding cost.
It usually does not.
What breaks in practice
When funding costs are not transparent:
Risk premiums are misallocated
Leverage appears cheaper or more expensive than it truly is
Equity valuation absorbs noise from capital structure distortions
At that point, DCF precision becomes an illusion.
The takeaway
Interest expense is not a footnote.
It is a structural input to valuation.
If you cannot properly decompose funding costs,
you cannot reliably define the discount rate.
And when the discount rate is unclear, valuation outcomes reflect only assumptions — not economics.