Convert "free month" offers and lump-sum concessions into your true monthly cost. Many landlords advertise gross rent, but net effective rent is what you'll actually pay over the lease.
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Net effective rent is the average monthly rent you actually pay over a full lease term, after accounting for concessions like free months or move-in credits.
For example, if an apartment is advertised at $2,500/month but the landlord offers one month free on a 12-month lease, your net effective rent is not $2,500. Your total payments over the year are $2,500 × 11 = $27,500. Divided by 12 months, your net effective rent is $2,291.67 per month.
This matters because some landlords advertise the gross rent but qualify you based on the gross amount. Other landlords and listing sites may show the net effective rent to make the apartment look cheaper. Always read the full lease terms to know which number you are actually paying each month.
Use this calculator when comparing apartments with different concessions. It helps you make an apples-to-apples comparison and avoid surprises when the free month ends and your real payments begin.