Cal. Civ. Code § 170-15-2-5
Adjustment of bills
Operative Text
Sec. 5. (a) A landlord or an association adjusts billing errors that are in a tenant's, member's, or co-owner's favor to the known date of error or for a period of one (1) year, whichever period is shorter. Adjustments are made within ninety (90) days of knowledge of the error, and use one (1) of the following methods: (1) Add the amount as a credit on the next sub-bill. (2) Refund the amount to the tenant, member, or co-owner. (3) Credit the amount to rental or association fees due. (b) A landlord or an association may adjust billing errors that are in its favor back to the known date of error or for a period of one (1) year, whichever is shorter, by including the adjustment in its next sub-bill.
Under Indiana regulation 170 IAC 15 § 170-15-2-5, when a billing error has favored a tenant, member, or co-owner, the landlord or association must correct it going back to when the error is known to have started, or up to one year back, whichever window is shorter. That correction must be delivered within 90 days of discovering the error, either as a credit on the next bill, a direct refund, or a credit against rent or association fees owed. When a billing error has instead favored the landlord or association, the operator may recover the underbilled amount by including it in the next sub-bill, again limited to the known error date or one year back, whichever is shorter.
Plain English — not legal advice.
Operators subject to 170 IAC 15 § 170-15-2-5 generally maintain records sufficient to identify when a billing error began, since corrections run only to the known start date or one year back, whichever is shorter. When an error has favored the resident, compliant operators issue the correction within 90 days of discovering it, choosing one of the three permitted methods: a credit on the next sub-bill, a direct refund, or a credit against amounts owed. When an error has favored the operator, the adjustment may be recovered through the next sub-bill, subject to the same lookback limit.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Under 170 IAC 15 § 170-15-2-5, tenants, members, and co-owners have a right to receive corrections for billing errors that worked in their favor, going back to the known date of the error or up to one year, whichever is shorter, and those corrections must arrive within 90 days of the landlord or association learning of the mistake. If a correction is not issued within that window, or if the method used does not match one of the three permitted approaches, a tenant may have grounds to raise the violation with the appropriate regulatory body or seek guidance from a local tenant-rights organization. Keeping copies of all sub-bills and any written communications about billing discrepancies can help document whether the timeline and method required by this provision were followed.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated October 15, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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