Renting a home in Istanbul can be an exciting experience, whether you are moving to the city for work, education, investment purposes, or a new lifestyle. However, Istanbul’s large and competitive rental market also means that tenants should carefully understand the financial and contractual responsibilities involved before signing a lease.

The monthly rent is only one part of the total cost of renting a property. Security deposits, building maintenance fees (aidat), utility expenses, rental agreement conditions, and annual rent increases can all affect your actual housing budget.

This guide explains the key points both Turkish and international tenants should know before renting an apartment or house in Istanbul.

1. Security Deposit When Renting in Istanbul

A security deposit is commonly requested by landlords when a new rental agreement is signed.

The purpose of the deposit is generally to provide security for obligations arising from the tenancy, such as damage to the property or certain unpaid obligations.

Under the Turkish Code of Obligations, where a security deposit is agreed for residential and roofed workplace leases, the amount of the security cannot exceed three months’ rent.

For example, if the monthly rent is TRY 40,000, the legally permitted security amount cannot exceed the equivalent of three months’ rent.

However, the amount requested in an individual rental transaction may be lower.

2. How Should the Deposit Be Paid?

The method of paying and holding the deposit is an important legal issue.

Under Turkish rental law, when the security is provided in money or negotiable instruments, specific rules apply regarding how it should be held. Therefore, tenants and landlords should avoid treating the deposit as an informal cash payment without proper documentation.

The rental agreement should clearly specify:

• The amount of the deposit
• How it will be provided
• The purpose of the deposit
• The condition of the property at handover
• The procedure applicable when the tenancy ends

Keeping payment records and a signed rental agreement can help prevent disputes later.

3. When Can the Landlord Make a Claim Regarding the Deposit?

A security deposit should not automatically be treated as additional income for the landlord.

At the end of the tenancy, disputes may arise if there is property damage, unpaid rent, unpaid obligations attributable to the tenant, or other contractual issues.

One of the most important distinctions is between normal wear and tear and actual damage caused by the tenant.

A property naturally experiences some deterioration during normal use. Tenants should not automatically be held responsible for every sign of aging or ordinary use.

For this reason, documenting the condition of the apartment when moving in can be extremely useful.

4. Prepare a Property Handover Record

Before moving into an apartment in Istanbul, tenants should inspect the property carefully.

Photographs or videos can be taken of:

• Walls and paint
• Floors
• Windows and doors
• Kitchen cabinets
• Bathroom fixtures
• Furniture
• Appliances
• Heating and cooling systems
• Existing scratches or damage

For furnished apartments, an inventory list should also be prepared.

The inventory can include furniture, televisions, refrigerators, washing machines, air conditioners, beds, tables, chairs, and other items supplied with the property.

Having a written and visual record of the apartment’s condition can significantly reduce disagreements when moving out.

5. What Is “Aidat” in Türkiye?

One of the most important additional expenses when renting an apartment in Istanbul is aidat.

Aidat generally refers to the monthly maintenance or management fee charged by an apartment building or residential complex.

Depending on the property, the fee may contribute to expenses such as:

• Building cleaning
• Security
• Concierge services
• Elevator maintenance
• Landscaping
• Common-area electricity
• Swimming pools
• Fitness centers
• Parking facilities
• Technical maintenance
• Residential complex management

The amount can vary dramatically between properties.

A standard apartment building may have a relatively modest monthly fee, while luxury residences and large residential complexes can have significantly higher charges.

6. Always Ask About the Aidat Before Renting

Tenants should never evaluate an apartment based solely on its advertised monthly rent.

For example, an apartment may be advertised at TRY 50,000 per month but have a substantial monthly maintenance fee.

This can significantly increase the real monthly cost of living in the property.

Before signing the rental agreement, ask:

How much is the current monthly aidat?

It is also useful to determine exactly what services are included.

Some residential complexes may include heating, hot water, security, or other services within the maintenance fee, while others charge these separately.

7. Who Pays the Building Expenses?

Not every building-related expense is automatically the tenant’s responsibility.

The allocation of expenses can depend on the nature of the cost, the rental agreement, condominium rules, and applicable legislation.

Expenses arising from the tenant’s ordinary use of common services may differ from major structural expenses or costs associated with ownership.

For example, routine operating expenses and major building renovation expenses should not automatically be treated in the same way.

Landlords and tenants should clearly establish which expenses each party is responsible for.

8. The Rental Agreement Is Extremely Important

A written rental agreement is one of the most important documents when renting property in Istanbul.

The agreement should clearly identify both the landlord and tenant and accurately describe the rented property.

Important information generally includes:

• Full address of the property
• Monthly rental amount
• Payment date
• Payment method
• Deposit amount
• Rental period
• Annual rent increase terms
• Aidat responsibilities
• Utility responsibilities
• Furnishings and inventory
• Handover condition
• Notice provisions
• Other agreed conditions

Tenants should read the entire agreement before signing it.

9. Verify the Landlord or Authorized Representative

Before paying rent or a deposit, tenants should confirm that the person offering the property has the legal authority to rent it.

Where appropriate, ownership information should be verified.

If the agreement is being signed by someone acting on behalf of the property owner, the tenant should confirm that the person has appropriate authorization.

This is particularly important for international tenants who may arrange accommodation remotely before arriving in Istanbul.

10. Avoid Unrecorded Cash Payments

Rent, deposits, commissions, and other significant payments should be properly documented.

Bank transfers provide a clearer record of when and why a payment was made.

When making a transfer, tenants should use an appropriate payment description identifying the purpose of the transaction.

Maintaining clear payment records can be valuable if a disagreement later arises between the landlord and tenant.

11. Annual Rent Increases

Tenants should also understand how annual rent increases work before signing a lease.

For ordinary residential rental renewals in Türkiye, the increase agreed between the parties is generally subject to the statutory framework under the Turkish Code of Obligations.

The applicable ceiling is linked to the 12-month average Consumer Price Index (CPI/TÜFE).

Because this percentage changes over time, tenants should check the latest official figure when their rental agreement reaches its renewal date.

The market rent of newly advertised apartments should not automatically be confused with the legally applicable increase for an existing rental relationship.

12. Utility Costs

In addition to rent and aidat, tenants should budget for household utilities.

These may include:

• Electricity
• Natural gas
• Water
• Internet
• Television services
• Heating
• Other residential services

The structure varies according to the property.

In some residences, certain services may be included in the aidat. In others, tenants may receive separate bills.

Before renting, ask the landlord or agent for an approximate overview of regular monthly expenses.

13. Real Estate Agency Commission

If a real estate agency is involved, a brokerage or service fee may also apply.

Before signing any document or making a payment, tenants should ask the agency to clearly explain:

• The commission amount
• Whether VAT is included
• When the commission becomes payable
• Which services are included

Any commission agreement should be documented clearly.

14. Furnished Apartments in Istanbul

Furnished rentals are particularly popular among international residents, expatriates, students, and professionals staying in Istanbul for limited periods.

When renting a furnished property, tenants should pay particular attention to the inventory.

The rental agreement or an attached inventory document should record the furniture and appliances provided with the apartment.

Photographing valuable items at the beginning of the tenancy can also provide useful evidence of their original condition.

15. Renting as a Foreigner in Istanbul

Foreign nationals can rent residential property in Istanbul, but they should pay particular attention to documentation and contract language.

If the rental agreement is written only in Turkish and the tenant does not fully understand Turkish, obtaining a reliable translation or professional assistance is advisable.

Foreign tenants should understand every important clause before signing, particularly provisions concerning:

• Deposit
• Rental duration
• Rent increases
• Early termination
• Aidat
• Utilities
• Furniture
• Property use
• Payment obligations

A tenant should never sign a contract they do not understand simply because they are under pressure to secure the property quickly.

16. Location Can Affect More Than the Rent

Rental prices vary significantly across Istanbul.

Popular districts such as Beşiktaş, Kadıköy, Şişli, Sarıyer, Üsküdar, Bakırköy, Ataşehir and Beyoğlu can have very different rental markets.

However, tenants should consider more than the monthly price.

Transportation access, earthquake-related building considerations, building age, parking, security, proximity to workplaces and schools, neighborhood infrastructure, and maintenance fees can all affect the overall suitability of a property.

17. What Should You Check Before Receiving the Keys?

Before taking possession of the property, tenants should complete a final inspection.

Check that:

• The keys work correctly
• Electricity and water systems are functioning
• Heating equipment works
• Appliances are operational
• Existing damage has been recorded
• Furniture matches the inventory
• Meter readings are documented where appropriate
• The agreed repairs have been completed

Any significant issue should ideally be recorded in writing.

18. What Happens When the Tenant Moves Out?

At the end of the tenancy, the property should be returned in accordance with the applicable contractual and legal requirements.

A final inspection can help determine whether there are any issues concerning damage, outstanding payments, keys, or inventory.

Taking photographs when leaving the property can provide additional documentation.

Tenants should also retain records showing that their rental and other applicable obligations have been settled.

19. Common Mistakes Tenants Should Avoid

One of the most common mistakes is choosing an apartment based only on the advertised monthly rent.

The actual monthly cost may include rent, aidat, utilities, parking, internet, heating, and other services.

Other common mistakes include paying a deposit without proper documentation, failing to inspect the property before moving in, signing a contract without understanding its clauses, and failing to document existing damage.

A few simple checks before signing can prevent much larger problems later.

Finding the Right Rental Property in Istanbul

Istanbul offers an enormous variety of rental properties, from compact city apartments to luxury residences and Bosphorus-view homes.

However, the right property is not necessarily the one with the lowest advertised rent.

Tenants should evaluate the total monthly cost, location, building quality, maintenance fees, deposit requirements, transportation options, and rental agreement conditions together.

For international tenants in particular, professional assistance can make it easier to understand local rental practices, communicate with landlords, review properties, and complete the rental process.

Understanding the deposit, aidat, and rental agreement before signing allows tenants to make more informed decisions and enjoy a more secure rental experience in Istanbul.

Disclaimer: This article is provided for general informational purposes only and does not constitute legal or financial advice. Rental regulations and contractual requirements may change. Landlords and tenants should verify current requirements and obtain professional advice where necessary.