Reviewed by Brendan McKee, Managing Broker, DRE #01882732, on October 20, 2026.

We found no official guidance from a California or federal agency that sets a maintenance budget for individual rental owners. You will see rules of thumb online, such as a percentage of rent or of property value, but none of them comes from a government agency or regulator, and they vary widely. A budget built from your own property's systems, records and inspections, plus the HOA reserve disclosures that California Civil Code §§ 5300 and 5570 require for condos, is more reliable.

The short version

  • We found no official percentage rule for small owners; the reserve figures you may see from Fannie Mae are lender rules for loans and condo projects.
  • Start from the property: list each major system, its age and condition, and its repair history.
  • Inspection reports (termite, balcony, your own walk-throughs) turn into budget lines.
  • Condo owners get an annual HOA budget report with a reserve summary and can ask for the full reserve plan.
  • Plan for what insurance usually does not cover: CDI's homeowners guide lists wear and tear, leaks and seepage, termites and mold.
  • Keep repairs and improvements separate in your records for tax purposes.

Why percentage rules do not hold up

Maintenance needs depend on the building's age, its systems, its location and how it has been kept, so a single percentage cannot describe them. We found no official guidance for small owners that sets one.

The official reserve figures that do exist are lender rules, each for its own narrow purpose:

RuleWhat it saysWho it applies to
Fannie Mae Selling Guide B4-2.2-02 (as dated August 5, 2026)A lender reviewing a condo project checks that the HOA budget funds replacement reserves of at least 10 percent of the budget, or relies on a qualifying reserve studyLenders reviewing condo projects for Fannie Mae loans
Fannie Mae Multifamily Guide § 105.01The minimum replacement reserve is the greater of the Guide's calculated amount or $250 per unit per yearFannie Mae multifamily mortgage loans

Neither one is a budget recommendation for an owner of a house, a condo or a small building. If you are buying or refinancing a condo rental, the first rule is something your lender applies to the association, and lender rules change, so ask your lender for the current standard.

The California Department of Real Estate's Reference Book gives a principle rather than a number: "Ongoing preventive maintenance to reduce the need for large maintenance expenditures should be the goal of all property managers," and "It is less expensive to make repairs immediately than to delay action and allow the problem to worsen."

Build the budget from the property

  1. List the major systems. Roof, water heater, heating and cooling, plumbing and sewer lateral, electrical service, appliances you supply, and exterior items such as fences, decks and paint. The major systems guide covers what each one involves.
  2. Find each system's age. Use purchase records, permit history, install dates on equipment labels and prior inspection reports. Where the age is unknown, note that; it is a reason to have a licensed professional look at it.
  3. Avoid generic lifespans. The California Energy Commission states that "the average life of a water heater is about 10 to 15 years, depending on the type and how well it is maintained." Other systems vary too much for a single figure; ask a licensed contractor to assess condition.
  4. Pull past bills. Two or three years of invoices show what the property actually costs to keep up, which repairs repeat, and which vendors you rely on.
  5. Add inspection findings. A wood-destroying organism report can separate active infestation from conditions likely to lead to it; both can become budget lines (see termites in San Diego rentals). Buildings with three or more units may have balcony and deck inspection results under SB 721 (see balcony and deck inspections).
  6. Ask for estimates. For any system you expect to repair or replace in the next few years, get a written estimate from a licensed contractor (hiring contractors). Replacement can bring code work with it: under the 2025 Energy Code, for example, replacing heating or cooling equipment generally triggers duct sealing and third-party testing.
  7. Note dates already set in law. Federal efficiency standards on the books today apply to non-weatherized gas furnaces made on or after December 18, 2028 and most electric storage water heaters made on or after May 6, 2029. These are manufacturing standards, not installation rules, but they can affect replacement options; ask your contractor.
  8. Add the insurance gap. CDI's homeowners guide lists perils generally not covered, including termites, rodents, water damage caused by seepage or leaks, mold, and "wear and tear or maintenance." Those costs fall on the owner. Landlord policies differ from homeowners policies, so read your own policy and know your deductible.

Condo rentals: read the HOA reserve disclosures

If you rent out a condo, the association's reserves pay for association components only. You still budget for items inside your unit that the governing documents assign to you.

California's Davis-Stirling Act gives you useful documents:

  • Reserve study (Civ. § 5550). At least once every three years, the board must have a visual inspection of the major components the association maintains, when their replacement value is at least half of the gross budget (excluding reserves), and review the study annually. The study covers components with a remaining useful life of less than 30 years, their estimated costs, and a reserve funding plan.
  • Annual budget report (Civ. § 5300). Distributed 30 to 90 days before the end of the fiscal year, it includes a reserve summary, a summary of the reserve funding plan, whether the board has decided to defer major repairs, whether special assessments are expected, and a summary of the association's insurance. You can request the full reserve plan.
  • Reserve summary (Civ. § 5565). It shows each major component's replacement cost and remaining life, the reserves needed against those actually set aside, the percentage funded, and the current deficiency per unit.
  • Assessment and Reserve Funding Disclosure Summary (Civ. § 5570). This form states regular and special assessments and asks whether projected reserves will be sufficient for the next 30 years.

Budget takeaway: if the report flags a special assessment or a large per-unit deficiency, put it in your plan. The association's insurance summary also tells you what its policy may not cover. See HOA rental restrictions and, for Coronado, condo or house rentals.

Holding reserves with a property manager

If a broker manages the property, funds the broker accepts for you that are not handed to you or placed in escrow go into the broker's trust account and stay there until disbursed according to your instructions (B&P § 10145). DRE regulations require a separate record for each owner, a monthly reconciliation of those records, and your written consent before a disbursement that would drop the account below what the broker owes all owners (10 CCR §§ 2831.1, 2831.2, 2832.1). We found no DRE statute or regulation that sets a repair approval limit; the management agreement does. DRE's guide for landlords hiring a property manager suggests confirming "that the contract clearly identifies how repairs are handled and expensed" and that it "requires monthly accounting reports." More on this in maintenance for remote rental owners.

A maintenance budget worksheet

Fill this in from your own records. Leave a cell blank until you have a source for it.

System or itemInstall year or ageLast service or inspectionCondition notesWho maintains (owner, HOA, tenant per lease)Estimate source and dateTarget yearAmount set aside
Roof
Water heater
Heating and cooling
Plumbing and sewer lateral
Electrical service
Stove, refrigerator, other appliances
Exterior (paint, fences, decks)
Pest inspection findings
HOA special assessments
Insurance deductible
Turnover work

Run the totals through the rental cash flow calculator to see how they affect your monthly numbers.

For owners

Revisit the worksheet each year and after any major repair, inspection or HOA notice. Keep invoices and photos with each line; IRS Publication 527 says to "separate the costs of repairs and improvements, and keep accurate records." See repairs vs improvements and keeping rental records. For Coronado owners, landlord insurance for Coronado rentals is related reading on deductibles.

McKee Properties manages rentals and runs an in-house maintenance division, Certified Property Maintenance; see maintenance services.

Local rules

Local agencies can add costs to a budget: permits for replacements (from the City of San Diego, the County for unincorporated areas, or your own city's building department), fire agency defensible space rules, and water district rules. For condos, the association's governing documents decide which repairs are yours. Check with the agency that serves your address.

Frequently asked questions

Is there an official percentage of rent to set aside for maintenance?

No. We found no official guidance for small owners from a government agency or regulator that sets a percentage of rent or property value. The rules of thumb online vary widely. A budget built from your property's systems, records and inspections is more reliable.

Does the Fannie Mae 10 percent reserve rule apply to my rental?

Not to your own budget. The Selling Guide rule (as dated August 5, 2026) is a test a lender applies to a condo association's budget when reviewing a project for a Fannie Mae loan. The $250 per unit per year figure applies to Fannie Mae multifamily mortgage loans. Neither is advice for an individual owner.

How do I find out whether my condo HOA has enough in reserves?

Read the annual budget report required by Civil Code § 5300. It includes a reserve summary showing the percentage funded and any per-unit deficiency (§ 5565), and the Assessment and Reserve Funding Disclosure Summary form (§ 5570), which asks whether reserves are projected to be sufficient for 30 years. You can request the full reserve plan.

How long does a water heater last?

The California Energy Commission says the average life of a water heater is about 10 to 15 years, depending on the type and how well it is maintained. For other systems, ask a licensed contractor to assess condition rather than relying on a general figure.

Will my insurance pay for worn-out systems?

Usually not. CDI's homeowners guide lists wear and tear or maintenance, neglect, leaks and seepage, mold and termites as perils generally not covered. Landlord policies are different documents, so read your own policy's exclusions.

This is general information, not legal or tax advice. Rules change; confirm your situation with a California attorney, your local building or fire department, or a licensed professional.

Sources

Verified October 19, 2026.

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