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Fannie Mae Multifamily Guide: property income analysisA rent concession is an incentive a landlord gives to sign or renew a lease — commonly a free month, a reduced rate for part of the term, or a waived fee. Concessions let you fill a vacancy without permanently lowering the face rent written on the lease.
Because a concession lowers what the tenant effectively pays, the true income is the “effective rent”: the total collected over the term, spread across the months. A unit listed at $2,000 with one free month on a 12-month lease brings in about $1,833 effective. Track concessions on the ledger so your books reflect what you actually collect, not just the headline rent.
Translate lease economics into a controlled ledger schedule
A twelve-month lease at $2,400 per month has $28,800 of stated contract charges. If an approved concession provides one $2,400 free month, scheduled cash after the concession is $26,400 and the simple effective monthly rent is $2,200. The lease or signed concession agreement should state when the benefit applies and any conditions. The ledger should post the ordinary charge and the approved concession or follow another documented policy that reaches the same supported tenant balance without hiding the discount.
A free month, temporary rate reduction, fee waiver, move-in credit, disputed-charge correction, and bad-debt write-off can all reduce a displayed balance, but they answer different questions. Give each a distinct event type, reason, authorization, effective period, and reporting treatment. Fannie Mae’s multifamily property-income framework, for example, presents concessions separately from physical vacancy and bad debt; an operator’s internal report should likewise disclose its chosen bridge instead of mixing the causes.
| Line | Amount | Evidence or interpretation |
|---|---|---|
| Contract rent: $2,400 × 12 | $28,800 | Executed lease and term |
| Approved free month | −$2,400 | Signed concession and applicable month |
| Scheduled rent after concession | $26,400 | Contract schedule less approved benefit |
| Simple effective monthly rent | $2,200 | $26,400 ÷ 12; comparison metric, not a replacement lease term |
Reporting distinctions and approval evidence
Contract rent reports the stated lease charge. Effective rent spreads a defined concession across a stated term for comparison. Cash collected reports settlement timing. Concession expense or contra-revenue presentation depends on the accounting and reporting model. Vacancy loss reflects unavailable or unoccupied time under a stated denominator, and credit loss reflects supported amounts not collected or deemed uncollectable under policy. Keep the bridge visible so a lower result cannot be attributed to the wrong operational cause.
| Control | Evidence | Failure prevented |
|---|---|---|
| Eligibility and consistency | Written program, property, unit, dates, applicant or resident facts | Ad hoc or inconsistently applied offers |
| Economic approval | Face rent, term, concession value, effective rent, budget impact | Headline rent masking total discount |
| Lease and ledger execution | Signed terms, charge schedule, credit identity, effective date | Duplicate or wrong-period credit |
| Reporting mapping | Defined treatment in GPR, vacancy, concession, and collection reports | Same loss counted twice |
Exceptions that require human review
If the resident moves out early, renews, transfers units, pays late, or disputes a condition tied to the offer, do not invent a clawback or silently move the credit. Review the signed terms, current law, consistent policy, and authorized decision. If a concession was posted twice, reverse only the unsupported event and reissue any affected ledger or owner report. If it was omitted, post it to the correct period and preserve the late correction.
The effective-rent calculation supports lease comparison and revenue analysis. It does not establish enforceability, fair-housing compliance, collectibility, market rent, or the proper financial-statement presentation. Those judgments depend on the agreement, jurisdiction, policy, and reporting basis.
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Editorial ownership
Written and maintained by the Aptoria editorial teamEditorial method reviewed July 28, 2026. Aptoria reviews scope, source fit, examples, limitations, links, and publication gates. This record does not claim attorney, CPA, lender, appraiser, or other independent professional sign-off.
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Related terms
Rent
Gross rent
A top-line rent amount before operating expenses, which must be labeled as potential, scheduled, billed, or collected to be meaningful.
Rent
Market rent
The rent a unit would command today if offered to a new tenant in the current local market.
Rent
Rent ledger
A running, dated record of every charge and payment on a single tenancy, showing the current balance owed.
Investing metrics
Vacancy rate
The share of rental units — or potential rent — that sits empty and uncollected over a period.
Investing metrics
Gross potential rent (GPR)
The maximum rental income a property could produce with every unit occupied at market rent for the full period.
Investing metrics
Economic occupancy
The share of supportable scheduled rental revenue actually realized for a defined period, with the numerator, denominator, and deductions stated.
Investing metrics
Vacancy loss
The rent a property fails to collect because units sit empty, expressed in dollars or as a percentage of gross potential rent.
Rent
Contract rent
The recurring rent stated in an executed lease for a unit and period, before separately analyzing concessions, unpaid balances, or market comparisons.
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