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How much to budget for home maintenance each year

Two rules of thumb get quoted: set aside 1 percent of the home value a year, or 1 dollar per square foot. Both are starting points. The real number comes from what your house has and how old it is.

Updated October 20, 20265 min read

The rules of thumb

  • The 1 percent rule: 1 percent of the purchase price a year, so $4,000 a year on a $400,000 house. It overstates the cost in expensive markets, where the price is mostly land, and understates it for an old house in a cheap one.
  • The square foot rule: about 1 dollar per square foot a year, so $1,800 for an 1,800 square foot house. It ignores the age of the house.
  • Both are averages over many years. In a year the roof is replaced you spend far more; in most years far less. The point is to set the money aside every year.

A better number: what your house has, and when it is due

List the big items and the year each went in. Divide the replacement cost of each by its typical life and add them up. That is your yearly set aside for the big things; add a few hundred dollars for the small ones.

The big items and their typical lives

ItemTypical lifePlan for
Asphalt shingle roof20 to 30 yearsThe largest single cost on most houses.
Furnace or boiler15 to 25 yearsYearly service extends it.
Central air conditioner12 to 17 yearsService yearly; keep the outdoor unit clear.
Tank water heater6 to 12 yearsSee how long water heaters last.
Exterior paint7 to 10 yearsSooner on the sunny side.
Deck15 to 25 yearsReseal every 2 to 3 years.
Appliances10 to 15 yearsDishwasher and washer at the short end.

Ranges from the InterNACHI life expectancy chart. Replacement costs vary by region; in Massachusetts the Handy Circle cost guides show local ranges.

Where to keep the money

  • A separate savings account named for the house, with an automatic transfer each month.
  • Do not count it as spent when a year passes quietly. The quiet years pay for the roof.
  • Keep the receipts for improvements; they matter when you sell. See what to keep in a home maintenance log.

Housemap does the ages

Type your address and Housemap reads the public record for the year built, then takes the age of your furnace, water heater and air conditioner from a photo of each label and shows when each is likely due. That list is the budget, item by item, for your own house.

Questions

Is 1 percent enough for home maintenance?

For a newer house in an average market, usually yes over a run of years. For an older house, or where land is most of the price, budget from the age of the roof, furnace, water heater and air conditioner instead.

How much does home maintenance cost per month?

Using the square foot rule, about 8 cents per square foot per month, so $150 a month on an 1,800 square foot house. The 1 percent rule on a $400,000 house gives about $330 a month. Your house can be above or below both.

What counts as maintenance versus improvement?

Maintenance keeps what you have working: a furnace service, a gutter cleaning, a repair. An improvement adds something or extends the life of the house: a new roof, a kitchen, an addition. Improvements can add to the tax basis of the house; the IRS lists them in Publication 523.

Sources

Related guides

See what is due at your house.

Housemap reads the record, takes the age of your equipment from its label and lays out what is likely due. Free.