What it means
Imagine an Indian company that borrows dollars from a foreign lender at a floating rate. It earns revenue in rupees, so it faces the risk that the rupee weakens against the dollar.
To manage this, it can enter a swap that converts its dollar liability into a rupee one, and MIFOR is the reference rate commonly used in those swaps. The benchmark is built from two components.
The first is a dollar interest rate, and the second is the forward premium, which reflects the difference in interest rates between the two currencies and is quoted as an annual percentage. Adding them gives a rupee-equivalent borrowing rate for dollar funds.
The forward premium matters because currencies with higher interest rates tend to trade at a weaker forward price. If the rupee is expected to buy fewer dollars in a year, the forward rate is higher than the spot rate.
The percentage difference is the premium, and it is what makes the rupee cost differ from the dollar cost. MIFOR is published by an independent administrator that calculates Indian benchmarks.
The dollar leg was historically based on LIBOR, but that benchmark has been phased out, so the dollar part now relies on a replacement rate. Users of older contracts should check the fallback terms.
For a finance team, the practical lesson is that borrowing in dollars is not automatically cheaper than borrowing in rupees. Once currency risk is covered, the rupee cost of dollar funding often looks close to domestic rates.
The benchmark makes that comparison measurable. Hedging has its own accounting consequences.
Companies that use swaps must decide how to record the gains and losses, and the answer depends on whether the swap qualifies as a hedge under the applicable accounting rules. Finance teams usually agree the treatment with their auditors before the swap is signed.
In practice
Real-world examples.
Example
An Indian infrastructure company borrows $50,000,000 abroad at a floating dollar rate. It enters a swap in which it pays a rupee rate linked to MIFOR and receives the dollar rate. The company now has a predictable rupee cost without taking currency risk.
Example
A bank's treasury desk compares the cost of funding in dollars with the cost of funding in rupees. After adding the forward premium, it finds the dollar route is only slightly cheaper. It decides the extra complexity is not worth the small saving.
Example
A trading desk quotes a client a swap at MIFOR plus a margin of 0.40%. The client asks how the margin compares with other banks. The desk explains that the margin covers its costs and risk, and the client accepts after comparing it with a second quote.
Formula
Calculation
MIFOR is approximately USD benchmark rate + Annualised forward premium
Forward premium = (Forward rate - Spot rate) / Spot rate
Suppose, for illustration, the spot rate is 80.00 rupees per dollar and the one-year forward rate is 81.60. The premium is (81.60 - 80.00) / 80.00 = 1.60 / 80.00 = 2.0%. If the dollar benchmark rate is assumed to be 5.0%, then MIFOR is roughly 5.0% + 2.0% = 7.0%. A loan of $10,000,000 priced at that rate would cost about $700,000 a year in interest, and that rate already includes the cost of covering the currency.Case study
Seen in the real world.
Deccan Power Holdings is an illustrative, fictional company building solar farms in India. It has arranged a $40,000,000 loan from a foreign bank at a floating dollar rate, but its revenue is in rupees. The finance director worries that a weaker rupee could make repayments heavier.
She asks two banks for swap quotes linked to MIFOR. One quotes a margin of 0.50% and the other 0.35%. On $40,000,000, the difference of 0.15% is 40,000,000 x 0.0015 = $60,000 a year, which makes the choice easy.
In this illustrative case, the company selects the cheaper quote and records the swap with the loan in its accounts. The director also checks the contract for what happens if the dollar benchmark is replaced, because that detail could change payments in future. She also schedules a review each year to confirm that the swap still matches the loan balance as repayments reduce it.
Watch out
Common mistakes.
- Assuming a dollar loan is cheaper without adding the cost of covering the currency risk.
- Confusing MIFOR with MIBOR, when the first reflects dollar funding swapped into rupees and the second reflects domestic rupee interbank rates.
- Ignoring what happens if the dollar benchmark inside the contract is discontinued or replaced.
Questions
People also ask.
What does the forward premium represent?
It reflects the difference between interest rates in the two currencies, expressed as the annual percentage by which the forward rate differs from the spot rate.
Who uses MIFOR?
Banks, corporate borrowers and investors who use swaps to link rupee payments to dollar borrowing costs.
How is MIFOR different from MIBOR?
MIBOR is the rate at which banks lend rupees to each other, while MIFOR is built from a dollar rate plus the forward premium.
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