A rent-increase calculation is only useful when the property file, notice, service record, and ledger can support it. Use this owner checklist before a rent-increase notice is prepared, then use the existing Rent Increase Pre-Notice Review for a focused pre-notice review.
California rent-increase owner checklist
Check each item. If a row is unresolved, stop the notice package and record what is missing. The checklist is designed for a long-term owner, inherited property, or self-managing owner who needs one clean decision file.
| Control |
Record before service |
Stop if |
| Property identity |
Address, city, county status, unit type, certificate-of-occupancy date |
The address or jurisdiction is uncertain. |
| Coverage |
Statewide rule, local ordinance, subsidy, affordability restriction, exemption status |
More than one rule could apply and no controlling rule is documented. |
| Rent base |
Lowest gross rent or local-law base, current lawful rent, rent components |
The calculation starts with a number that the applicable rule does not use. |
| Rent history |
Every increase during the applicable 12-month period and each effective date |
A prior increase or mid-period change is missing. |
| Concessions and credits |
Lease language, amendments, gross rent, discounts, credits, and incentives |
Gross rent and concessions are blended in one unexplained charge. |
| Lease file |
Fixed or periodic term, required disclosures, exemption language, local addenda |
The proposed change conflicts with the lease term or required notice language. |
| Notice timing |
Effective date, 30-day or 90-day test, longer local or program period |
The effective date does not leave the full period. |
| Service proof |
Service method, recipient address, date, mailing evidence, local filing or posting record |
The route or proof cannot be recreated later. |
| Local controls |
Registration, fee, self-certification, local form, disclosure, language, utility rule |
The local agency requires a step that is incomplete. |
| Ledger control |
Recurring-charge effective date, first affected ledger, second-person QA |
The ledger would change before the notice is effective or no second reviewer is assigned. |
Calculation scratchpad
For a covered AB 1482 unit, use the statutory formula under Civil Code § 1947.12 and record each input in the file before service:
Lowest gross rent during lookback period: $__________
Applicable regional cap percentage: __________%
Maximum new gross rent ceiling [Lowest gross rent × (1 + Cap% / 100)]: $__________
Current lawful gross rent (including any prior increase in the last 12 months): $__________
Remaining allowable increase headroom (Maximum new ceiling − Current lawful gross rent): $__________
For example, if lowest gross rent was $2,000 and the applicable cap is 8.7%, the maximum new gross rent ceiling is $2,174 ($2,000 × 1.087). If an earlier increase already raised rent to $2,080, the remaining allowable headroom is $94 ($2,174 − $2,080), not a second full 8.7% increase.
The California 2026–2027 cap guide explains the statewide lowest-gross-rent rule, lookback periods, and regional caps under the California Department of Justice. Local programs can use a different base or calculation. Use the local guide when the property is in Los Angeles County, the City of Los Angeles, or Santa Ana.
Local guide links
Use the checklist as a controlled handoff
Keep the checklist with the lease file, calculation, notice, service record, local registration evidence, and first affected ledger entry. Confirm notice periods comply with Civil Code § 827 (30-day or 90-day periods) plus five additional days for service by mail under Code of Civil Procedure § 1013, and verify mandatory just-cause lease disclosures under Civil Code § 1946.2.
If the owner wants an independent pre-notice review, use the existing Rent Increase Pre-Notice Review. The review is a workflow for decision support and intake. It is not a replacement for the property file or official local instructions.
Related Coastline resources
Review the checklist before service
Request Coastline Equity's Rent Increase Pre-Notice Review before the notice is served.
This educational guide is not legal advice. Confirm the current official statute, agency instructions, and local requirements for the property before serving a rent-increase notice.
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