# Concessions bad debt and apartment effective gross income Canonical: https://chicagocommercialfunding.com/guides/concessions-bad-debt-and-apartment-effective-gross-income/ Markdown: https://chicagocommercialfunding.com/guides/concessions-bad-debt-and-apartment-effective-gross-income/index.md Resource ID: concessions-bad-debt-and-apartment-effective-gross-income Published: 2026-10-21 Updated: 2026-10-21 Attribution: Chicago Commercial Funding Editorial Topic: multifamily Asset types: Multifamily Investment stage: Operate Experience level: Intermediate Apartment effective gross income must reflect the timing and economic substance of concessions, vacancy, collections and other recurring receipts. Face rent and billed charges alone do not establish supportable income. Apartment effective gross income should begin with a clearly defined rent base and then account for vacancy, concessions, collection loss, and other supportable recurring income. The investor needs to know which deductions are temporary, recurring, already embedded in rent, or merely timing differences. A higher face rent does not necessarily improve property income if the owner offers more free rent, credits, or uncollectible charges. This guide provides an underwriting and record-reconciliation framework using hypothetical examples, not legal collection advice or current Chicago rent assumptions. ## Define the rent base before making deductions Identify whether the model starts with market potential, contractual scheduled rent, occupied rent, billed charges, or collections. Those starting points require different adjustments. If the schedule includes every lawful unit at contractual rent for every month, vacancy and concessions must be deducted. If it already contains only cash collected, subtracting the same losses again double-counts them. Market-rent potential adds an estimate of what units might earn after lease changes. Separate loss-to-lease from actual unpaid rent. An existing below-market agreement is not a delinquency. Fannie Mae's multifamily cash-flow guidance illustrates the importance of supported income and documented adjustments in its lending program. The investor should maintain its own transparent bridge and reconcile any lender-specific differences. [Fannie Mae underwritten cash flow](https://mfguide.fanniemae.com/node/7531) ## Inventory concessions by agreement List each concession's amount, period, reason, conditions, documentation, and effect on payment. Include free rent, recurring discounts, renewal credits, service-related credits, and other supported arrangements. A stated monthly rent with a recurring credit can differ economically from the face amount. A one-time free month affects the first lease year's effective rent, while a permanent discount affects later periods too. Ask about arrangements outside the main lease and obtain supporting evidence. A seller's rent roll may show the face amount while the manager consistently accepts less. The buyer should investigate rather than presume the difference is either enforceable full rent or permanent bad debt. For a Chicago property, counsel should review actual agreements and current residential requirements. The underwriting treatment does not establish a right to impose, remove, or recover a concession. [Chicago Residential Landlord and Tenant Ordinance](https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2639066) ## Calculate effective rent with timing Assume a hypothetical twelve-month lease at $1,800 monthly with one free month. Total scheduled face rent is $21,600, while rent after the concession is $19,800. Simple average effective rent is $1,650 monthly before collection loss and other costs. A competing lease at $1,700 with no concession produces $20,400 over the same period. Its lower face rate yields $600 more undiscounted rent. The comparison still needs timing, credit, turnover, and other terms. If the free month occurs at the beginning, the owner also waits for cash. A concession spread across later payments has a different present value and liquidity effect even if total dollars are equal. For a full return comparison, use dated cash flows rather than a simple average. Equity Residential separately reconciles concession effects on cash and GAAP revenue, a useful reminder that the reporting basis matters. [Issuer reporting reconciliation](https://investors.equityapartments.com/news-events/press-releases-news/news-details/2025/Equity-Residential-Reports-Second-Quarter-2025-Results/default.aspx) The average is a useful explanatory measure, not a substitute for the acquisition's monthly funding model. ## Separate vacancy from concessions A vacant unit earns no rent because no paying resident occupies it under the relevant period. A concession reduces charges or payments under an arrangement. Both reduce revenue but may have different operating causes and expected durations. A unit can incur both during a year: two months vacant, followed by a lease with one free month. Model the actual calendar rather than assume one loss category replaces the other. If scheduled rent begins only at the new lease start, earlier vacant months may already be excluded. Inspect the spreadsheet formulas before adding a blanket vacancy percentage. The same economic event should appear once. Record offline units separately and investigate their readiness cost. Removing them from the denominator can make the reported rent realization look stronger without restoring earning capacity. ## Understand bad debt and arrears Arrears are unpaid amounts at a point in time. Bad debt or collection loss is a conclusion or accounting treatment concerning revenue not realized. A buyer should review aging, disputes, credits, subsequent payments, and write-offs. A resident paying late can create a cash trough without producing the same ultimate loss as a balance never collected. A later recovery can improve current receipts without increasing recurring current rent. Prepare a roll-forward: beginning receivable plus new charges minus credits, payments, and write-offs equals ending receivable under a consistent convention. Investigate unexplained differences before normalizing. Counsel should establish applicable notices, remedies, and resident protections. HUD's fair-housing resources are an additional primary starting point for lawful housing practices; financial analysis should not encourage inconsistent or unlawful treatment. [HUD fair-housing resources](https://www.hud.gov/stat/fheo/rights-obligations) ## A hypothetical annual EGI bridge Assume a property's full contractual rent base is $360,000. Physical vacancy removes $18,000, documented concessions remove $12,000, and supported recurring collection loss is $9,000. Net rental income is $321,000. Laundry and other supported recurring income contribute $8,000 after the model's defined treatment. Effective gross income is $329,000 before operating expenses. If a seller used $360,000 plus $8,000 without deductions, it overstated this example's EGI by $39,000. If the seller already reported $321,000 of net collections and the buyer deducted $39,000 again, the buyer would understate income by the same amount. The critical control is the bridge and definitions. A loss percentage cannot be judged in isolation from the rent base and accounting convention it modifies. ## Examine other income carefully Separate recurring services, parking, laundry, utility recoveries, fees, and irregular receipts. Determine the right to charge, actual collection, associated expense, and whether the income is repeatable. Do not capitalize deposits as revenue merely because cash is held. Prepaid rent also has timing and obligations that differ from an ordinary current-period receipt. The actual treatment requires appropriate accounting and legal advice. A large one-time settlement, insurance recovery, or prior-balance collection should not silently support permanent EGI. Show it separately and explain the forecast. Utility reimbursements require physical, contractual, and legal analysis. Gross recovery is not necessarily net profit when the property also pays the corresponding bill and incurs administration. ## Distinguish acquisition normalization from a management target The base case should represent supportable expected operations, not simply management's desired collection rate. Use property history, lease evidence, comparable operations where relevant, and a credible action plan. If losses are unusually high because of a documented temporary issue, show the cost and timing of correction. Do not remove the loss immediately while ignoring the capital or legal work needed to change it. If concessions were required to fill units, test whether market rent is lower than advertised. A forecast that removes every concession while retaining the highest face rent may be internally inconsistent. Use a downside that combines plausible weakness. More vacancy, greater concessions, and collection pressure can occur together rather than independently. ## Compare renovated and unrenovated units properly A renovation program should be evaluated on net achieved rent after concessions, downtime, turnover, and capital. A $200 face-rent premium can shrink substantially if the renovated unit takes longer to lease or requires incentives. Compare similar unit types and timing. A newly renovated larger apartment cannot establish the premium for every smaller unit. Identify the sample and limitations. Track the first lease and renewal where possible. A concession-heavy initial lease may attract residents but not prove a durable premium. Conversely, strong retention can improve economics beyond the initial rent comparison. Keep the renovation investment separate from EGI. The revenue model explains earnings; the return model must also include what the owner spent to achieve them. ## Translate EGI into value and financing A hypothetical $15,000 reduction in recurring EGI reduces NOI by the same amount only if operating expenses are unchanged. Some costs vary, so use the actual budget where material. At an illustrative 8% capitalization assumption, $15,000 less NOI corresponds to $187,500 of arithmetic value sensitivity before other valuation factors. This is not an appraisal. At a hypothetical 1.25-times coverage ratio, $15,000 less lender cash flow reduces supported annual debt service by $12,000 before other constraints. A small monthly rent-realization difference can therefore affect required acquisition equity. Reconcile sponsor EGI with lender-underwritten income. Different reserve, vacancy, or concession treatments should be visible rather than hidden in a replacement total. At closing, identify which party owns outstanding receivables and who must honor resident credits or prepaid periods. Those balances affect opening cash and obligations even when they are excluded from the stabilized EGI forecast. ## Maintain a useful revenue report Report face scheduled rent, vacancy, concessions, collections, arrears, other income, and reconciliation differences monthly. Identify material exceptions and responsible actions. Retain leases, credits, ledgers, receipts, and approvals supporting adjustments. A future lender or buyer should be able to understand how the revenue was earned and collected. For the investment decision, choose a forecast that survives a credible loss scenario and has sufficient working capital. Reprice when verified income is below marketing. Investigate gaps before treating them as either guaranteed recovery or permanent failure. Effective gross income is useful when it represents a reproducible cash-generating operation. It is misleading when a high face-rent schedule conceals the concessions, timing, and collection work needed to turn charges into money. ## Source registry - [Fannie Mae Multifamily Guide: Underwritten Net Cash Flow](https://mfguide.fanniemae.com/node/7531): accessed 2026-10-21 - [Chicago Municipal Code: Residential Landlord and Tenant Ordinance](https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2639066): accessed 2026-10-21 - [HUD: Fair Housing Rights and Obligations](https://www.hud.gov/stat/fheo/rights-obligations): accessed 2026-10-21 - [Equity Residential: Q2 2025 results and metric definitions](https://investors.equityapartments.com/news-events/press-releases-news/news-details/2025/Equity-Residential-Reports-Second-Quarter-2025-Results/default.aspx): accessed 2026-10-21 ## Related resources - [A Chicago investor’s guide to commercial multifamily ownership](https://chicagocommercialfunding.com/learn/multifamily/) - [Apartment turnover costs and recurring capital budgets](https://chicagocommercialfunding.com/guides/apartment-turnover-costs-and-recurring-capital-budgets/) - [Deferred maintenance in older Chicago apartment buildings](https://chicagocommercialfunding.com/guides/deferred-maintenance-in-older-chicago-apartment-buildings/)