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Rent Increase Rules for the Year 1405

The rules governing rent increases in the Iranian year 1405, and what tenants and landlords should know to prevent disputes.

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Rent increases: the general rule and its exceptions

The foundational rule of any tenancy is fidelity to the amount written in the contract; the landlord cannot demand more than what was signed, and the tenant owes no more than the contract states. For residential units governed by the 1997 landlord-tenant relations act, annual increases are only possible within the caps announced for each year.

The important exception is the older 1976 act, under which the landlord can seek an increase from the dispute resolution authority under Article 4. The first step in any rent dispute is therefore identifying which statute governs the contract; a mistake at this point derails the whole case.

A written agreement is the best prevention

Most rent-increase lawsuits trace back to incomplete contracts. A lease that states the annual cap, the payment dates and the exit conditions turns a potential lawsuit into a simple reminder. A step-up clause with a fixed percentage is predictable for the landlord and survivable for the tenant.

Our practical advice is for the parties to hold a short meeting before each lease year ends and record the next year's rent in a signed addendum. A written addendum carries real evidentiary weight and shields both sides from later claims of overcharge.

If the dispute escalates

Depending on the contract type, the dispute goes to the dispute resolution council or the civil court, and any demand above the contract without legal authority is defensible against the tenant. A tenant should never rely on handwritten receipts; bank transfers referencing the lease number are the strongest available evidence.

A landlord who believes an increase is legally justified must use the legal channels before cutting anything off; shutting off water or electricity or removing the tenant's belongings not only loses the case but can create criminal liability. In this field, acting quickly on legal advice usually beats acting quickly in court.

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