Is 10% of rent enough for reserves?

Sometimes, but not reliably. A percentage of rent ignores condition and lifecycle. Two properties with identical rent can need very different reserves.

What is a rental property emergency fund vs a reserve?

An emergency fund covers surprise repairs; a reserve covers predictable major replacements. Both matter, but reserve planning looks at lifecycle and predictable major replacements, while an emergency fund handles surprises.

How Much Should You Keep in Reserves for a Rental Property?

Most owners know they should hold cash for major repairs. The harder question is how much. The honest answer is that it depends on the physical systems in each property, and a single rule of thumb cannot capture that.

Why a single number does not work

A flat reserve like 10% of rent, $500 per door, or three months of expenses is simple. It is also blind to condition. A five-year-old roof and a twenty-two-year-old roof should not create the same capital requirement, yet a percentage of rent gives them the same number.

What actually drives reserve needs

Reserve needs come from the major systems in a property and where each one sits in its lifecycle:

Roof: material, age, flashing condition, layers
HVAC: system type, fuel, age, capacity
Water heater: age, fuel, capacity
Appliances: age and condition
Plumbing, electrical, exterior: age and known defects

The closer a system is to the end of its expected life, the more likely a near-term replacement, and the more cash you should reasonably hold against it.

A better way to think about the number

Instead of one reserve figure, estimate a target reserve: enough cash to keep your balance above a liquidity floor throughout your expected hold period, given the modeled replacement windows of your systems. That number is property-specific.

A simple starting point

If you have no model yet, at minimum identify each major system's approximate age and expected life. The systems nearest their expected end of life define your near-term exposure. That near-term exposure is the starting point for your reserve. Your rent roll is a separate question.

The bottom line

Hold enough capital to cover modeled property obligations without leaving unnecessary cash idle. That balance is different for every portfolio.