Maintenance, Repairs and Capital: The Three Costs Nobody Separates

Almost every rental property financial model I see has one line called maintenance, set at 5% or 8% of rent.

That one line is being asked to do three different jobs. It cannot do any of them well.

Maintenance is what you spend so things do not break. Servicing the furnace, flushing the water heater, clearing the gutters. A few hundred dollars a year, none of it urgent, all of it easy to skip.

Repairs are what you spend when it breaks anyway. Reactive, hard to predict, and much larger.

Capex, or capital expenditure, is replacing a system at the end of its life. The roof. The furnace. Not a repair, not maintenance. It is the cost of owning a building that gets older.

Confuse them and you underfund all three. There is a fourth cost sitting outside all three and it is larger than any of them, which I have set out in what tenant turnover actually costs.

Then a landlord in Minneapolis skips the furnace service for five years to save about $750. The heat exchanger cracks in a January cold snap. Emergency replacement in peak season costs $8,500, plus three nights of hotel for the tenant.

Total cost of saving $750: about $9,700.

That is the whole point of writing this article. Do not be the investor who steps over hundred dollar bills to pick up pennies. Put another way, do not be a cheapskate.

1. Why does the distinction between the three matter?

The reason this matters is that the three behave completely differently.

Maintenance is small, predictable, and optional in the short run. Nothing happens if you skip one furnace service. It might if you skip five.

Repairs are unpredictable, and can be a direct result of skipping the routine maintenance above. A well kept house still needs repairs. A neglected one needs far more, and they arrive as emergencies rather than appointments.

Capital is large, predictable and unavoidable. The roof has a life. So does the furnace. You know roughly when and roughly how much, which makes it the easiest to plan for and the one most often ignored.

The trap is that only maintenance, which is the thing that hedges the other two, is truly optional, and it is the one people cut. It is also the line a property manager is least likely to chase you about. Cutting it turns a small known cost into a large unknown one. That is the worst trade on offer.

2. What routine maintenance does a rental need?

Here is the full annual schedule for a single family rental, with what each item costs, what it prevents, and what happens if it is skipped.

Total: roughly $1,090 a year.

Two things are worth pulling out of that table.

The water heater items are the highest return. The data is consistent. An unmaintained tank averages eight to ten years. One flushed each year with the anode rod replaced runs fifteen or more. That is close to double, for about $150 a year. Water heater failures also average $4,444 a claim, and about 69% start as a slow leak rather than a burst. Which means somebody was in a position to notice.

And the washer hoses matter more for you than for a homeowner. A burst line releases gallons a minute. In a home somebody hears it. In a rental where the tenant is at work, or the house is empty between lets, it just runs. The average US water damage claim is $13,954, and about one in every 60 insured homes files one each year, according to Insurance Information Institute data for 2018 to 2022. Water damage and freezing was 27.6% of all home insurance claims in 2022, second only to wind and hail.

Mold takes hold within 24 to 48 hours of water getting in, per the EPA. That is the window, and from another continent you are not in it. Whether you could realistically manage any of this yourself is the question I have answered in should you self-manage a US rental from abroad.

3. How do I verify any of it from 4,000 miles away?

Every item in that table is invisible to you. You cannot look at the gutters, check the caulk, or know if the filter was changed. So the schedule is worthless without a way to confirm it happened.

Four things I do.

Put the schedule in the management agreement, by name and frequency, rather than relying on a general duty to maintain. A manager who has agreed in writing to an annual furnace service behaves differently from one who has agreed to look after the property.

Ask for the invoice, not the confirmation. An invoice names the trade, the date and the work. A line on a statement saying maintenance does not.

Ask for video, not photos. This is a correction to advice I used to give, and I learned it the hard way. A manager once sent me photographs of a completed turnover that were of other houses entirely. They had done one room. I did not find out until I came to sell and an inspection turned it up.

Photographs are trivially easy to fake from 4,000 miles away. A continuous video walkthrough is much harder, because it has to move through the property in one take and show the context between rooms. I now get video of every repair.

And on a large job with a contractor I do not know, I pay for an independent inspection rather than relying on the manager's own record. A couple of hundred dollars against a $9,000 turnover is cheap, and it is the only check that actually holds up.

And book a walk-through every three to six months, with the manager going through the house looking for unreported faults. That is the single change that has saved me the most money, and I only started doing it after a tenant used a bathtub as a toilet for three months rather than report a broken one. That story is in why 5,000 landlords a year quit Section 8.

4. When does each system need replacing?

Capital is different because you can see it coming. Every part has a life, and knowing where each one sits tells you what is ahead.

These costs are for Cleveland and Kansas City, the two markets I know best. Daniel owns in both, and his purchase is written up in his case study. Both run close to national averages, so they travel reasonably well to other midwest markets.

Two market notes that change the numbers. In Kansas City, Evergy rebates of $1,000 to $1,300 come off at the till on qualifying HVAC, rather than by post. And the federal Section 25C credit expired on 31 December 2025, so any guide written before then overstates what you can claim.

And one buying note. Buy a house where three systems are all near the end of their lives and you are not buying a house, you are buying a bill. That is one of the reasons I look at systems age rather than just renovation quality, and it is covered in how to check a turnkey seller's numbers.

5. What does it all add up to a year?

Here is the annual capital reserve on a typical single family rental, taking mid-range costs and typical lives. Capital work also lifts your basis and starts its own depreciation clock, which matters on the way out and which I have set out in capital gains tax when a foreign owner sells.

On a $150,000 property that is 1.7% of value a year, which is where the old rule of putting aside 1% to 2% comes from. It is roughly right, and it excludes turnover entirely.

Note what is not in that table. Flooring, paint, appliances and cleaning are not capital items here, because they sit in the turnover cost, which I have worked through separately. Counting them twice is a common error and it makes properties look worse than they are.

6. What happens to cash flow at three years against five?

Now put all of it together on a real property, and you can run the same sum on your own house in the rental property cash flow calculator. Cleveland, rent $18,000 a year, property tax $1,412, insurance $900, management at 10%, mortgage $8,187. Turnover event $11,250.

Same house. Same rent. Same mortgage. The only variable is how long the tenant stays.

Fully costed, with an honest capital reserve and an honest turnover provision, this property loses money at a three year tenancy and makes money at five.

Which tells you two things.

First, that the buy box is not a preference. Buying a house that holds a family for five or eight years rather than two is the difference between a property that funds itself and one that does not. The pro forma you were shown almost certainly used the wrong figure, and rebuilding it is the point of the nine questions investors actually ask about turnkey property.

And second, that most models are wrong. A 5% maintenance allowance plus a 5% vacancy allowance is 10% of rent. The real figure here is 27% at a five year tenancy and 35% at three.

7. What does Brooklyn Avenue prove?

I have used a house on Brooklyn Avenue in Kansas City throughout this site, because it has a complete public record. It was renovated in 2016 and it is worth about $145,000 today. A fully renovated house two blocks away appraised at $210,000.

Some of that gap is size and an extra bed and bath. Some of it is that every system in the first house is now ten years old.

Here is what a buyer in 2026 is looking at.

That is 15% of the property's value, sitting in front of the next owner, and they price it in. The rest of what comes off at that closing is in what closing costs actually are.

Now run it the other way. Ten years of the capital reserve in section five would have been $15,130.

So roughly $15,000 of spending protects about $22,000 of value.

The money does not vanish. It moves from your pocket into the asset. And skipping it does not keep the money in your pocket either. It comes off the price when you sell, and before that it comes off in shorter tenancies and bigger repair bills.

8. What is the cash flow actually for?

Which brings me to the thing I most want a new investor to understand.

A rental property is a self funding asset. It is not a way to add $300 a month to your income.

If you are buying because you want a monthly check, you have the wrong asset, and the numbers in section six show why. Costed in full, the check is small or negative.

Your cash flow has three jobs, and they are all inside the property.

Service the debt, which is its own subject and covered in DSCR loans explained. Fund the maintenance. Fund the capital replacement.

Do all three and the house stays sound. It keeps its tenants, because things work and nothing stays broken. It keeps its value, because the next buyer is not pricing in a roof. And it rises with the market rather than lagging it.

It is also worth knowing what the US takes out of that rent before you see it, which I have set out in my US tax guide for foreign investors.

Draw the cash flow as income instead and you are funding your lifestyle by letting the house get older. The bill does not go away. It turns up as a lower sale price, a shorter tenancy, and a repair that could have been a service.

The return is not the rent. It is the property being worth more and the tenant repaying the loan, which on a real ten year hold I have modeled at 11.7% a year with almost none of it coming from income. That is in selling a US rental as a UK resident.

Spend the rent on the house. That is the whole strategy.

If you would rather somebody ran the schedule, chased the invoices and did the walk-throughs, that is what our remote management service is for. You can build your own reserve model first with the free tools in my investor starter kit.

The bottom line

Maintenance, repairs and capital are three different costs. Only one is optional in the short run. It is also the cheapest, the most useful, and the one everybody cuts.

About $1,090 a year of routine maintenance and $1,513 a year of capital reserve. Roughly 1.7% of property value, before turnover.

Section 8 tenancies bring their own inspection standard on top of all this, which I have set out in is Section 8 a good investment.

Skip the first and you turn small known costs into large unknown ones. Skip the second and you are not saving money, you are borrowing it from the sale price.

A rental should pay for itself, house you a tenant who wants to stay, and be worth more when you sell than the market alone would explain. That is what the cash flow is for.

Remember, investing is a game of probabilities. A roof reaching the end of its life is not one of them.