How much to budget for rental property maintenance

Knowing how much to budget for rental property maintenance decides whether a broken water heater is an expense you planned for or a bill that eats a whole month's rent. Repairs don't arrive evenly. You can go a whole year with nothing but a few filters and a leaky faucet, and then a single month brings a new AC unit and a plumbing call. If no money was set aside, that month comes out of your savings or onto a credit card.

Below are the usual rules of thumb, what each one leaves out, and a way to turn them into a monthly amount for the property you own.

Why repair costs catch owners off guard

Most owners know their fixed costs by heart: mortgage, property tax, insurance, HOA fees. Maintenance is different because it shows up in uneven amounts at random times, and the large items only come around every several years. A water heater or a roof gets replaced so rarely that its price is easy to forget.

The records don't help much either. The last repair invoice sits in an email thread, the plumber was paid by card, and nobody wrote down how old the AC is. Without that history, you start your budget from a guess, and most guesses come in low.

Three rules of thumb, and where each falls short

These are rough rules of thumb that no official body sets, and none of them looks at your property. Use them for a starting range: run all three and compare the results. The figures below use one example property: a house worth $250,000, 1,200 sq ft, renting for $1,800 a month. The amounts are only examples.

The results are far apart, and each rule has a blind spot:

• 1% of value follows the price of the property, not its condition. An older house bought cheaply can need more than 1%, and a new condo with a building that maintains the roof and pipes can need less.
• $1 per square foot ignores age and climate. A small unit with an old boiler and a big unit with new systems come out very differently from what the formula says.
• A share of the rent follows the local rental market, which has little to do with what repairs cost. A high rent in an expensive city doesn't mean the plumbing is in worse shape.

You may also hear the "50% rule", which sets aside half the rent. That one is meant to cover all operating costs (taxes, insurance, vacancy, management and maintenance), so don't read it as a maintenance budget.

Use the rules as a range for your first year, then replace them with numbers from the property itself.

How much to budget for rental property maintenance, item by item

A budget built from the property's own equipment uses the ages and prices that apply to you. You make the list once, then update it at your yearly review and whenever something is serviced or replaced.

List the big items and their ages

Walk through the property and write down everything that is expensive to replace: water heater, heating and cooling, roof (if it's yours to maintain), appliances you supply, flooring, interior paint and windows. For each one, note how old it is and, if you can, ask the pro who services it how many years it has left and what a replacement costs today.

Then divide each replacement cost by its years left. That's what you set aside for it each year. If you already hold money for an item, subtract it from the cost before you divide. An item that's already due has no years left to spread the cost over, so decide now how you'll pay for it, from the reserve or your savings.

The prices and years are examples. Get your own from the pros who know your property. If one of these items breaks before its time, our guide on whether to repair or replace an appliance helps you compare the two costs.

Add routine maintenance

Next, add the yearly cost of the jobs you repeat: HVAC servicing, filters, gutter cleaning, pest control, smoke alarm batteries, the drain cleared once a year. Our rental property preventive maintenance checklist lists them by month, season and year, so you can price each line once.

Leave room for the unexpected

Some repairs can't be planned: a burst pipe, a broken lock, a storm. Add a cushion on top of the planned items, and keep enough in the reserve to pay for one large repair without waiting for next month's rent. How big the cushion should be depends on the property's age and how much of its systems you're responsible for.

In the example, the replacements add up to about $1,900 a year. Routine maintenance and a cushion bring the total close to the 1% rule's $2,500, and you can point to the item behind each part of it. Divide the yearly total by 12 to get what you move to the reserve each month: about $210 in the example.

Check who pays for what before you set the number

The same apartment can need a very different reserve depending on the lease and the building. Before you fix the amount, check:

• What the building or HOA covers. In many condos the association maintains the roof, facade and shared pipes, and its fees already pay for that.
• What the lease assigns to the tenant. Some leases make the tenant responsible for small repairs, lawn care or filter changes.
• What the law in your area requires. Many places set what an owner must keep in working order (heat, hot water, safe wiring) and how fast. Rules vary by country, state and city, so check the rules where the property is.

Only budget for what falls on you. A lease clause can't always shift a repair the law puts on the owner, so keep those repairs in your budget whatever the lease says. If the lease is unclear about a repair, settle it in writing with the tenant while nothing is broken.

Keep the reserve separate and check it once a year

Set the reserve apart from your other money so it's there when a repair comes.

1. Open a separate savings account for the maintenance reserve, or one per property if you own several.
2. Move the monthly amount on the day rent arrives, so it never mixes with spending money.
3. Pay every repair from that account and record it with its receipt in your ledger. Our guide to tracking rental income and expenses shows a simple way to do that per property.
4. Compare at the end of the year. Look at what you planned and what you spent. If repairs ran over two years in a row, raise the monthly amount. Before you lower it, add up everything coming: replacements due in the next few years, routine work, any special assessment the HOA has announced and your cushion. Lower it only if the balance covers all of that.

If paying and recording every repair takes more time than you want to give it, our guide on whether to hire a property manager helps you weigh the fee against your hours.

After a year or two, your own repair history gives you a better number than any rule, and the rules of thumb become a cross-check.

How RentalThread will make it easier

RentalThread will show rent and expenses for each property at a glance, so you'll see what maintenance costs per unit without rebuilding it from bank statements. Every repair will follow one shared thread from request to estimate, approval, completion and payment, with its photos and invoice attached, so the cost history for next year's budget is recorded as the work happens. You'll also be able to schedule recurring maintenance, like the yearly water heater flush or the AC service, so planned jobs get a date instead of waiting for something to break.

If you own a few rentals and plan repairs from memory today, see what's planned for owners.