Murabaha Calculator

What Murabaha is

Murabaha is an Islamic-finance structure where the financier purchases an asset on the customer's behalf and resells it at an agreed marked-up price payable in instalments. Because the contract is structured as a sale of a real asset rather than a loan with interest, the mark-up is classified as profit rather than interest under AAOIFI Shariah Standard 8. The profit component is fixed at signing — it doesn't compound on a declining balance — and the customer pays equal monthly instalments for the duration of the term.

How to use it

Enter the principal, meaning the asset cost being financed, the annual flat profit rate from the contract, and the term in years. The calculator returns the total contract amount, the profit component, the monthly instalment, the profit as a percentage of principal, the stated flat profit rate, and an APR-equivalent expressed as a declining-balance rate for comparison with conventional financing. The currency selector at the top changes formatting throughout; the math is currency-neutral.

How Murabaha differs from conventional loans

A conventional loan charges interest on the declining outstanding balance — early payments are mostly interest, late payments mostly principal, and total interest depends on the amortisation schedule. Murabaha applies a flat profit rate to the original principal across the full term — total profit is fixed at signing and doesn't change as the balance falls. The customer pays equal monthly instalments throughout. Structurally these are different contracts; numerically the flat-rate Murabaha typically produces a higher total cost than a conventional loan at the same headline rate, because the flat rate doesn't benefit from the declining-balance reduction.

Worked example

Take the loaded figures: a 30,000 asset at a 6% flat profit rate over 5 years. Total profit is 30,000 × 6% × 5 = 9,000. Total contract amount is 39,000, the monthly instalment is 39,000 ÷ 60 = 650, and profit as a percentage of principal is 30%. The stated rate is 6%; the APR-equivalent is 10.85%.

At a 5% flat rate over the same 5 years the APR-equivalent comes out at 9.15% against a stated 5%. One thing worth noticing is that this figure does not depend on the size of the deal: a 200,000 asset at 5% over 5 years produces the same 9.15%, because the APR-equivalent is set by the ratio of instalment to principal, and that ratio is fixed by the rate and the term alone.

The gap grows in absolute terms as the flat rate rises, while the multiple between the two rates slowly shrinks. Over a 5-year term, a 3% flat rate maps to 5.64%, a multiple of 1.88; 5% maps to 9.15%, a multiple of 1.83; 6% to 10.85%, a multiple of 1.81; 10% to 17.27%, a multiple of 1.73; and 15% to 24.68%, a multiple of 1.65. A doubling is a fair first approximation across the lower part of that range, and the calculator computes the figure directly rather than relying on the approximation.

Why the APR-equivalent matters

The two rates describe the same total cost in different ways. The stated profit rate is what is written in the Murabaha contract; the APR-equivalent is what a conventional declining-balance loan would need to charge to produce the same monthly payment over the same term. Comparing a 5% Murabaha against a conventional offer at 5% APR is not like-for-like: the conventional offer at the same headline rate would actually be cheaper, because conventional interest accrues on a falling balance. Surfacing both rates makes the comparison transparent.

The comparison also has a regulatory dimension. Consumer credit rules in many markets require a standardised annual percentage rate to be disclosed precisely so offers can be set side by side, and where an Islamic-finance product falls inside those rules the same disclosure applies to it. Where it does not, the stated flat rate may be the only figure quoted, and the APR-equivalent has to be worked out rather than read off.

How the math works

Total profit is principal multiplied by the profit rate as a decimal and then by the number of years, which is the flat-rate calculation. Total contract is principal plus total profit. The monthly instalment is the total contract divided by the number of months. Profit as a percentage of principal is total profit divided by principal. The APR-equivalent is found numerically: the calculator solves the standard amortisation formula for the rate that produces the same monthly payment on the same principal and term, using bisection to a very fine tolerance.

Where Murabaha typically applies

Common applications include home financing, often combined with diminishing Musharaka in some markets, car finance, business equipment, and consumer-goods financing through Islamic banks. Specific availability and rate offerings depend on the lender's product catalogue and the customer's eligibility. Rate ranges vary by country, regulator and provider type; published market data comes from bodies such as the Islamic Financial Services Board, while specific offers are quoted by individual lenders. Contract-quoted rates differ from category averages, so a figure based on a specific contract rate reflects that contract rather than the market.

Early repayment in Murabaha

Because total profit is set at contract signing rather than calculated on a declining balance, early repayment doesn't automatically reduce the total cost the way it does on a conventional amortising loan. Some Murabaha contracts include a discretionary discount provision (Ibra) where the lender may rebate part of the unearned profit on early repayment, but this isn't a contractual right under standard Murabaha. The specific terms appear in the contract; whether an early-repayment discount is offered is one of the practical differences between Murabaha and conventional prepayment treatment.

Variations in Murabaha structure

Standard Murabaha uses fixed flat-rate profit with equal instalments (the structure modelled by this calculator). Diminishing Musharaka combines Murabaha-like elements with co-ownership where the bank's share reduces over time. Bullet-payment Murabaha pays the total contract at the end of term rather than in instalments. Working-capital Murabaha uses commodity transactions for short-term financing. The calculator models the standard equal-instalment case; AAOIFI Shariah Standard 8 documents the contractual conditions for compliant Murabaha and notes the variations.

What this calculator doesn't capture

Specific Sharia-compliance certification (which scholar bodies have approved a particular product), discretionary early-repayment discount (Ibra) policies that vary by lender, late-payment treatment under Sharia principles, takaful (Islamic insurance) premiums that some contracts bundle, arrangement and documentation fees, country-specific tax treatment of Islamic-finance products, and contract variations like diminishing Musharaka or bullet repayment. The figures are an estimate of the headline contract cost based on the three inputs entered.