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It’s no secret that buying a house in the US has become more expensive. But the cost of owning and maintaining a home has also become significantly more expensive, which may come as a surprise to some buyers.

The “hidden costs” of homeownership average $18,118 per year, or $1,510 per month, according to a new report from The national figure includes the average cost of property taxes, homeowners insurance and electric, internet and cable bills. This also includes home maintenance, which is estimated at 2% per year of the value of a home.