Diminishing Musharakah | Lease & Equity Contracts

Definition (the Musharakah standard)

Diminishing Musharakah: Partnership in which: (1) Two parties (typically bank and customer) jointly acquire asset; (2) Each contributes capital proportional to ownership share; (3) Customer gradually purchases bank's share through installments; (4) Ownership progressively transfers from bank to customer until customer owns 100%.

Key Structural Elements

Joint Ownership

Bank and customer co-own the property. Bank's share is explicitly registered or documented. Example: Property 400,000 dinars. Bank 150,000 (37.5%); Customer 250,000 (62.5%).

Profit & Loss Sharing During Partnership

Rental income (if property leased) is split per ownership shares
Operating expenses and maintenance split proportionally
Capital losses (property value decline) borne proportionally
These are partnership profits/losses, NOT interest-bearing debt payments

Gradual Buy-Out Mechanism

Customer makes periodic payments to buy out bank's share. Each payment: (1) Categorized as PURCHASE of bank's share (separate from rental); (2) Reduces bank's ownership %; increases customer's; (3) NOT interest or penalty; (4) Must be specified in separate sale/purchase schedule.

Compliance Requirements

Genuine co-ownership: Bank must actually own its share and bear risks. NOT disguised secured loan.
Clear separation of rental and purchase: Installments split: X = bank rental income; Y = purchase price for bank's share.
Variable rental based on remaining ownership: As customer's ownership increases, customer's own portion of rental also increases proportionally.
Buy-out schedule: Amount and dates for purchasing bank's share must be specified or clearly determinable.
Property purchase price determination: If linked to property's market value, independent appraisal required.

Applications

Home Finance: Customer and bank co-own; customer buys bank's share over time (15-20 years)
Project Finance: Bank co-invests with entrepreneur; as project generates profits, entrepreneur buys out bank
Equipment Leasing: Bank owns equipment; leases to customer and gradually sells as lease payments made

The Three-Contract Architecture

A working Diminishing Musharakah is in substance three legal acts running in parallel — they must be drafted as separate, mutually independent contracts so that the failure or termination of one does not contaminate the others.

1. The partnership itself

A genuine co-ownership of the asset, with each party owning an undivided share and bearing the proportionate risks of that share — including market-value decline. The partnership is the foundation; without genuine joint ownership the structure collapses into a disguised loan.

2. The lease of the institution's share

Where the asset is one the customer wishes to use (a home, a vehicle, equipment), the customer leases the institution's undivided share for an agreed rental. The rental is consideration for use, not for the financing — and as the customer's ownership grows, the institution's rental base shrinks accordingly. Major maintenance attributable to the institution's share remains the institution's responsibility.

3. The promise to purchase the institution's share

A unilateral, binding promise from the customer to purchase tranches of the institution's share over time at a price determined at each purchase. Each tranche is executed as a separate sale at the time of purchase — not as a forward sale at inception. The promise binds the promisor; the institution does not pre-sell.

Pricing the Tranches

Pre-agreed fixed price — permissible when the parties agree at inception that each tranche will transfer at, say, 1/120th of the original capital base; the institution accepts that market value may diverge by the time of transfer.
Market value at the time of each transfer — also permissible; the parties commit only to the pricing mechanism, not the price, and an independent appraisal or transparent index is used at each tranche.
What is not permissible — pricing the tranches at original cost plus a time-based mark-up that escalates with delay (this is the indexed-cost pattern that mimics interest), and pricing the tranches at a guaranteed minimum to the institution regardless of market.

Because the customer and institution are co-owners, a market-value decline of the asset is shared in proportion to current ownership shares — recalculated at the time of the loss event. If the customer has bought 60% by the date of a destructive event uncovered by insurance, the customer absorbs 60% of the uninsured loss and the institution 40%. This is the operational test that distinguishes the genuine partnership from a financing dressed up as one.