Commercial Lease Calculator

Created by Bogna Szyk and Wei Bin Loo
Reviewed by Małgorzata Koperska, MD and Steven Wooding
Based on research by
Dulani Halvitigala, Laurence Murph, Deborah Levy The Impacts of Commercial Lease Structures on Landlord and Tenant Leasing Behaviours and Experiences Pacific Rim Property Research Journal (2011)
Last updated: Aug 08, 2022

This commercial lease calculator is a handy tool for all tenants renting a commercial space, such as an office or retail space.

With its help, you can easily find out the annual rent you're going to pay, as well as the rental commission received by the real estate agent. This calculator is flexible enough to determine the payment on the most common types of leases, such as the double or triple net lease (NNN lease).

If you're a landlord, keep reading to learn how to calculate the commercial rent, or take a look at the net effective rent calculator!

What is a commercial lease?

Commercial rental properties include most non-residential spaces: offices, retail spaces, hotels, or restaurants. When the owner of such a space wants to rent it out to a business tenant, their agreement is called a commercial lease.

Many landlords are reluctant to rent their properties to commercial tenants because it requires more knowledge – these tenants are usually more educated and bring their lawyers to discuss the details. However, this type of lease has its advantages; commercial tenants are less likely to move away, providing a steady cash flow for many years.

💡 To learn more about leasing in general, go check out our lease calculator.

How to calculate commercial rent?

This commercial lease calculator uses a simple formula to calculate the annual rent:

rent = area × rate

where:

  • area – Total area of the rented space, usually in m² or ft²;
  • rate – Total rental rate – rent per m² or ft² determined by your landlord; and
  • rent – Sum of what you have to pay annually or monthly.

You can also open the advanced mode to split the total rental rate into two numbers:

  • Base rental rate – Rent that covers only the base costs; and
  • Operational expenses – includes utilities or maintenance.

If you enjoyed this calculator, you should also check out our what to offer on a house calculator.

How to calculate the rental agent's fee?

Now that you know how to calculate the commercial rent, you can also find out what is the commission that a rental agent gets for helping you strike a deal.

The rental agent's fee is typically calculated as a percentage of the annual rent. For example, your agent might demand 5% of a three-year lease. It means that the landlord has to pay him 5% of the total annual rent every year for the first three years.

Our commercial lease calculator uses the following equation for the fee:

fee = percentage × duration × rent

where:

  • fee – Rental agent's fee;
  • percentage – Percentage of the annual rent that you have to pay; and
  • duration – Time of the lease.

This fee is typically covered by the landlord. There are different ways to pay this fee – for example, it can be agreed that the landlord pays 50% on the day of move-in and 50% on the day of move-out.

Single, double, and triple net leases

There are three main categories of commercial leases. In each type of lease, the risk is divided differently between the landlord and the tenant.

  • In a single net lease, the landlord takes over most of the risks. The tenant pays the rent and property taxes, but the landlord's insurance premiums, repairs, and maintenance are the landlord's responsibility. The rent tends to be higher than the other lease types to accommodate that risk.

  • A double net lease transfers the risk of property taxes and insurance premiums to the tenant. The landlord still has to cover repairs and maintenance.

  • In a triple net lease, also known as the NNN lease, most risks are transferred to the tenant. Property taxes, insurance premiums, as well as all repairs and maintenance are not covered by the landlord. Because of that, the rent is usually much lower, but the tenants have to deal with unexpected expenses, such as repairing a leaking roof. While tenants are reluctant towards this kind of agreement, it makes a landlord's life much easier, as tenants damaging their property are not a problem anymore.

You can use this tool as a triple net lease calculator. To do that, open the advanced mode of the commercial lease calculator. Enter separately the base rental rate (determined by your landlord) and additional operational expenses that you have to cover over a year.

Bogna Szyk and Wei Bin Loo
Area
ft²
Total rental rate
$/
ft²
/year
Rent
$/
per year
Rental agent's fee
The agent takes...
%
of the equivalent of...
yrs
rent
Total fee
$
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