Islamic Mortgage Calculator — Murabaha & Ijara
Calculate Sharia-compliant home financing payments under Murabaha or Ijara structures, without conventional interest.
Islamic Mortgage Calculator — Murabaha & Ijara
Calculator
Adjust values & calculateEnter your values below. Every result is computed in your browser — no data is sent to any server.
Formula: Murabaha: Monthly = (Principal + Principal × Rate × Years) / (Years × 12) | Ijara/Musharakah: Monthly = P × r(1+r)^n / ((1+r)^n − 1)
Worked example — Monthly: $1,700 | Total cost: $510,000 | Bank profit: $270,000
Formula
Murabaha: Monthly = (Principal + Principal × Rate × Years) / (Years × 12) | Ijara/Musharakah: Monthly = P × r(1+r)^n / ((1+r)^n − 1)
Murabaha uses a simple cost-plus calculation where the total profit is the principal multiplied by the rate and term, then divided equally over all months. Ijara and Diminishing Musharakah use an amortization formula similar to conventional loans but structured as rent or share buyback rather than interest payments, ensuring Sharia compliance.
Worked Examples
Example 1: Murabaha Home Purchase
Problem:A property costs $300,000. You make a $60,000 down payment (20%). The bank offers Murabaha financing at 4.5% profit rate for 25 years.
Solution:Financed amount = $300,000 - $60,000 = $240,000 Total bank profit = $240,000 × 4.5% × 25 = $270,000 Total cost = $240,000 + $270,000 = $510,000 Monthly payment = $510,000 / 300 = $1,700.00
Result:Monthly: $1,700 | Total cost: $510,000 | Bank profit: $270,000
Example 2: Diminishing Musharakah Financing
Problem:Same property at $300,000 with $60,000 down payment, 4.5% profit rate for 25 years using Diminishing Musharakah.
Solution:Financed amount = $240,000 Monthly rate = 4.5% / 12 = 0.375% Monthly payment = $240,000 × 0.00375 × (1.00375)^300 / ((1.00375)^300 - 1) = $1,333.73 Total cost = $1,333.73 × 300 = $400,119.00
Result:Monthly: $1,333.73 | Total cost: $400,119 | Bank profit: $160,119
Frequently Asked Questions
What is Islamic mortgage financing and how does it differ from conventional mortgages?
Islamic mortgage financing is a Sharia-compliant method of purchasing property without paying or receiving interest (riba), which is prohibited in Islam. Unlike conventional mortgages where a bank lends money and charges interest, Islamic financing uses trade-based or partnership-based structures. In Murabaha, the bank purchases the property and sells it to you at a disclosed markup. In Ijara, the bank buys the property and leases it to you with an option to purchase. In Diminishing Musharakah, you and the bank jointly own the property, and you gradually buy out the bank's share. The key difference is that the profit comes from real asset transactions rather than interest on money.
What is Murabaha financing and how does it work?
Murabaha is a cost-plus financing arrangement where the Islamic bank purchases the property on your behalf and immediately resells it to you at a higher price that includes the bank's profit margin. The total price and profit are disclosed and agreed upon upfront, making the transaction transparent. You then pay the agreed total in fixed monthly installments over the agreed term. The key features are that the price is fixed at the start and does not change regardless of market fluctuations, the bank takes actual ownership of the property before selling it to you, and both the cost price and profit margin are fully disclosed. This structure avoids interest by treating the transaction as a sale rather than a loan.
What is Diminishing Musharakah and why is it popular?
Diminishing Musharakah (Musharakah Mutanaqisah) is a partnership-based Islamic financing structure where you and the bank jointly purchase the property. Over time, you buy the bank's share in incremental portions while also paying rent on the bank's remaining share. As your ownership increases, the rent you pay decreases proportionally because the bank's share diminishes. This structure is considered by many scholars to be the most authentically Islamic financing method because it involves genuine shared risk and partnership. It is popular in Malaysia, the UK, and several other markets where Islamic finance is well established, and it provides flexibility as payments can be adjusted based on market conditions.
Is Islamic mortgage financing more expensive than conventional mortgages?
The cost comparison depends on the specific structure, market conditions, and the financial institution. In a Murabaha arrangement, the total cost is typically fixed upfront and may appear higher because the profit is calculated on the full principal for the entire term, similar to simple interest. However, Ijara and Diminishing Musharakah structures often produce costs comparable to conventional mortgages because they use declining balance calculations. Some Islamic banks price their products competitively with conventional equivalents. The non-financial benefits include Sharia compliance, ethical financing, shared risk, and the absence of compounding interest charges or variable rate surprises in certain structures.
What are the requirements to qualify for Islamic mortgage financing?
Requirements for Islamic mortgage financing are generally similar to conventional mortgages. You typically need a minimum down payment of 10-20% of the property value, proof of stable income sufficient to cover monthly payments, a good credit history and score, and identification and residency documentation. Some Islamic banks may require evidence that you are seeking Sharia-compliant financing for religious reasons. The property must also meet certain criteria — it should be a real, identifiable asset and not involve anything prohibited in Islam such as properties used for gambling or alcohol sales. Some institutions also require approval from a Sharia advisory board before finalizing the financing agreement.
What is Ijara financing and who holds the title to the property?
Ijara is a lease-to-own structure: the financier buys the property, holds legal title, and leases it to the customer for an agreed rental. Payments combine rent for use of the asset with amounts that lead to transfer of ownership at the end of the term, either by sale or by gift under a separate undertaking. Because the financier is the owner during the lease, it bears the ownership risks that fall on a landlord, which is what distinguishes the arrangement from a secured loan.
Why is the total cost of a Murabaha higher than a Musharakah at the same profit rate?
Murabaha fixes the profit at the outset as a flat amount on the whole financed sum for the whole term, so the markup does not shrink as you repay. Ijara and Diminishing Musharakah recalculate on the outstanding share, so the rental element falls as your ownership grows. At an identical quoted rate the flat method costs materially more: this page's worked example shows $270,000 of Murabaha profit against about $160,000 on the declining-balance schedule, roughly 70% higher.
Is the profit rate the same thing as an interest rate if it tracks a market benchmark?
Many Islamic products benchmark the profit rate to a conventional index so that pricing stays competitive, and critics argue this makes the outcome economically similar. The Sharia argument turns on the contract rather than the number: the financier must buy and own a real asset and take genuine ownership risk, and the profit must arise from a sale or lease rather than from lending money. The benchmark is used only to set the price of that trade, and a Sharia supervisory board reviews the documentation.
What happens on early settlement in a Murabaha compared with a Musharakah?
In a Diminishing Musharakah you are simply buying the remaining share, so settling early ends the rental on that share and reduces total cost naturally. In a Murabaha the whole debt, including the fixed markup, was contractually created at the start, so early payment does not automatically remove future profit. Many institutions grant a rebate, known as ibra, at their discretion rather than as an enforceable right. If early repayment is likely, check how rebate is documented before choosing the structure.
How are property insurance and late payment handled in Sharia-compliant home finance?
Conventional insurance is usually replaced by takaful, a mutual-contribution arrangement, and under an Ijara the financier as owner typically carries the structural cover while the customer covers contents and agreed charges. For arrears, penalty interest would be riba, so contracts commonly require a late-payment amount that the institution must donate to charity rather than book as income, alongside ordinary enforcement rights. Terms vary by institution and jurisdiction, so review the actual contract with a qualified adviser.
References
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer · Editorial policy
Related Calculators
🧮Kabul Rent Calculator
Estimate apartment and house rental costs in different districts of Kabul.
🧮Kabul Cost of Living Calculator
Estimate monthly cost of living in Kabul including rent, food, transport, and utilities.
🧮Ijara Lease Calculator
Calculate monthly lease payments for Islamic ijara (leasing) financing structures.
🧮Murabaha Profit Calculator
Calculate the total cost and profit margin in an Islamic murabaha financing arrangement.
🧮Islamic Inheritance Calculator
Calculate islamic inheritance with inputs, formulas, and instant results.
🧮Islamic Date Calculator
Calculate days between two Hijri dates or convert Hijri date ranges to Gregorian.
🧮Islamic Will Calculator
Calculate Islamic inheritance shares (faraid) for all heirs according to Quran and Sunnah.
🧮Islamic Months Calculator
Convert between Hijri month names, numbers, and corresponding Gregorian date ranges.