Rent Increase: Statutory Caps vs. Market Reality in Iran

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Understand the Iranian rental market's rent increase ceilings, the 25% cap in Tehran, and how to manage indexation during high inflation periods.

Melvin Prince
3 min de leitura
Verificado Apr 2026Irã flag
Aumento de aluguelLimites de aluguel no IrãAjustes de inflaçãoProteção habitacionalControle de aluguel no Irã

Aviso Legal

Este conteúdo é apenas para fins informativos e educacionais gerais. Não constitui aconselhamento jurídico e não deve ser considerado como tal. As leis mudam frequentemente — sempre verifique os regulamentos atuais e consulte um advogado licenciado em sua jurisdição para obter aconselhamento específico para sua situação. Landager é uma plataforma de gestão de propriedades, não um escritório de advocacia.Informações verificadas pela última vez: April 2026.

Rent increases in Iran are a critical point of tension between landlords, tenants, and the government, largely due to the country's persistent high inflation rates. While the government attempts to stabilize the market through mandatory caps, the market reality often diverges significantly.

Annual Cap
Typically 20-25%
Notice Period
1 Month
Rahn Conversion
3% customary rate

1. The Statutory Rent Cap (2026-2027)

For the 2026-2027 rental cycle, the Iranian Supreme Council of Housing has reaffirmed mandatory ceilings for rent increases upon contract renewal:

  • Tehran: 25% maximum increase.
  • Other Major Cities: 20% maximum increase.
  • Smaller Towns: 15% maximum increase.

Contractually, these caps apply when a tenant wishes to extend an existing lease for the same property. If the landlord and tenant cannot agree on a figure within this cap, the Dispute Resolution Council (Shoray-e Hal-e Ekhtelaf) generally sides with the 25% limit.

2. Market Reality vs. Legal Ceiling

Despite the official caps, real-world increases in Tehran often range between 45% and 60% due to inflation. Landlords often bypass these caps via:

  • Currency Indexing: Demanding a portion of the payment in foreign currency or gold (legally risky but common).
  • Refusal to Renew: Claims that the landlord's family needs the unit (a legal ground for non-renewal).
  • Rahn Conversion: Manipulating the Rahn (deposit) to Rent conversion ratio.

3. The Tracking Code (Kod-e Rahgiri) and Increases

Registering the rent increase in the National Real Estate Transactions System is mandatory. Any increase beyond the legal cap that is not registered and assigned a unique Tracking Code is not legally enforceable. If a tenant pays an illegal excess, they may theoretically sue for a refund of up to ten times the excess amount under recent housing market transparency laws.

4. Rahn-to-Rent Conversion (Tabdil)

The customary conversion rate (Tabdil) is fundamental to calculating increases. In 2026, the market rate is approximately 3% per month (or 36,000 Tomans of rent for every 1 million Tomans of Rahn), though this fluctuates with bank interest and inflation.

How Landager Helps

Landager tracks lease terms, rent compliance, and important deadlines - making it easy to stay compliant with Iran regulations.

Back to Iran Landlord-Tenant Laws Overview.

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