How Do You Budget for Unexpected Rental Property Repairs?

Question

A rental can perform well for months and then need a major repair at the worst possible time. Roof issues, HVAC replacements, plumbing problems, and tenant turnover can all affect cash flow.

What systems do you use to plan for maintenance and capital expenses?Do you keep a fixed reserve per unit, set aside a percentage of rent, or budget based on the property's age and condition?

I'd love to hear which approach has worked best for other property owners.

Aaron Zimmerman · Answer

$10k per property and sometimes more for a reserve. I have a spreadsheet of what’s been replaced and what needs to be replaced within an approximate timeline.

V.G Jason · Answer

Percentage of rent or mortgage really ties in nothing. You need to keep it as a top line item and have it on a curve. If a roof costs $20k and last 20 years, a water heater $3k, hvac $10k, appliances $8k, etc. You need to have 100% of it then discount on lifetime; so if a new roof can make that $2k(10%) and compound at 2x CPI(So 7.5-8% annually). If an HVAC is 10 years old--you're likely replacing it soon or within 5 years so 100%. Keep the floor at 10% for the real long dated and 25% for the mid-dated(water heater one's), 50% for appliances or anything that's 10 years or less. Those can go year 6 or 8, too.

So to answer your question-- they are never unprepared. You're always prepared. Either be deep or step out.

Jim Johnson · Answer

I'd go with a percentage of rent as a starting point, then adjust based on the property's age and condition. A newer property and one with a 20-year-old roof shouldn't have the same reserve budget. I'd also keep money set aside specifically for bigger replacements like HVAC and roofing, so those expenses don't eat into the regular maintenance funds.

Mike Fisher · Answer

Thanks Ryan, agreed. Age and condition first, then a percentage on top for the routine stuff, is the right order. And the tenant who calls about the small drip early is worth keeping, which is one more reason a fair renewal pays for itself.

Ryan Brown · Answer

@Linda Murray, good to see a fellow Kentuckian on here. I'd agree with Mike that a blend of all three works best, but the bigger factor is that it really depends on the property and the tenant.

A 100-year-old brick house in Old Louisville and a 2005 build in the suburbs shouldn't have the same reserve, even at the same rent. The older house might have original plumbing, an aging sewer line and a roof you're watching every year. The newer one might go five years with nothing more than a water heater. A flat percentage of rent treats them the same, and that's where people get caught short. That's why I like starting with age and condition, then using a percentage of rent for the routine stuff on top of that.

The tenant matters just as much. A long-term tenant who takes care of the place and calls you about the small drip before it rots the subfloor costs a lot less to own than one who doesn't say anything until there's a real problem. Turnover is its own expense too. A unit that turns every year needs more set aside for paint, cleaning and vacancy than one where the same tenant has been there for six years.

So I'd set the reserve for each property based on what it actually is and who's living in it, then adjust it as you learn more. The formula is a starting point, not the answer.

Amit Patel · Answer

We use a mix, because no single rule works for every property:

• A starting reserve per unit. Something you don’t touch for normal repairs, usually a few months of expenses. We also keep a small operating reserve in each owner’s account so routine repairs never wait on a check.
• A monthly set-aside from rent. Split it into two buckets: maintenance (small stuff like faucets, appliances, turnovers) and capex (roof, HVAC, water heater). Around 5 to 10% each is a common starting point.
• Adjust by age and condition. A rehabbed property with new systems needs less. A 1950s building with an original boiler needs a lot more. Same rent, very different risk.

A starting reserve per unit. Something you don’t touch for normal repairs, usually a few months of expenses. We also keep a small operating reserve in each owner’s account so routine repairs never wait on a check.

A monthly set-aside from rent. Split it into two buckets: maintenance (small stuff like faucets, appliances, turnovers) and capex (roof, HVAC, water heater). Around 5 to 10% each is a common starting point.

Adjust by age and condition. A rehabbed property with new systems needs less. A 1950s building with an original boiler needs a lot more. Same rent, very different risk.

The tool that helps most: a simple capex schedule. List each big system, its age, expected lifespan, and replacement cost. Divide cost by remaining years and you know exactly what to save for each one. No more surprises, just repairs you already planned for.

Mike Fisher · Answer

Linda, we use a blend of all three, because each one alone misses something.

Start with age and condition. List the big five on every house: roof, furnace, water heater, AC and sewer line, with the install year and expected life. That tells you which year a big check is coming, so it stops being unexpected.

Then keep two buckets. Routine repairs come out of a set percentage of rent every month. Capital items get their own reserve, sized to whatever is next on that list, and that money never gets touched for a dripping faucet.

Two things move the number more than the formula does. Turnover is usually the biggest hit once you count days vacant plus the turn itself, so keeping a good tenant with fast repairs and a fair renewal protects the reserve. And small things handled early, like a fall furnace tune up or a running toilet, keep a minor repair from turning into a capital one.

Last habit: rebuild the reserve right after it gets used, before taking any distributions.

Mike, M Property Group LLC, south and southwest Chicago suburbs

How Do You Budget for Unexpected Rental Property Repairs?

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