Running costs: how to calculate the monthly cost
Listing running costs are often optimistic. What is included: power, heating, water, waste and insurance, and how to check the numbers.

Browsing a home listing, the price catches the eye. But running costs (driftkostnad) decide what it actually costs to live there, month after month. Running costs are the sum of all ongoing expenses to keep the home going, and they sit on top of interest and amortisation on your mortgage. Two homes with the same price can have completely different running costs, and therefore very different real monthly costs.
The problem is that the listing’s running costs are often optimistic or built on the previous owner’s habits. Understanding what is included, how to verify the numbers, and how it differs between houses and tenant-owner apartments saves you nasty surprises after moving in.
What is included in running costs?
Running costs consist of several items. The most common are electricity, both household power and any electric heating, plus heating itself, which can be district heating, heat pump, pellets or oil depending on the home. Then come water and sewage, waste collection and cleaning, plus insurance suited to the home type. For houses with a fireplace or stove, add chimney sweeping and fire safety checks, done on schedule.
Beyond that there may be a fee to a joint property association (samfällighet) or road association, broadband and TV costs, and for houses ongoing maintenance and small repairs you handle yourself. For a tenant-owner apartment the single biggest item is instead the monthly fee to the association, covering much of what a house owner pays separately. What the fee includes varies between associations: sometimes heating and water are in, sometimes not. Always check that.
The difference between houses and tenant-owner apartments
For a house you pay each item directly yourself: electricity, heating, water, waste, insurance, sweeping and maintenance. Full control, but also full responsibility. Costs can swing hard, especially heating and power in a cold winter. Do not forget maintenance. A roof, a facade or drainage does not last forever, and those costs come even when invisible month to month.
For a tenant-owner apartment much of this is bundled into the association’s monthly fee. You pay your household electricity and your own tenant-owner home insurance, but heating, water, property maintenance and the like are handled by the association and paid through the fee. That makes monthly cost more predictable. But you depend on how well-run the association’s finances are. A low fee in a heavily indebted association can rise, and then your cost climbs with nothing you can do about it.
Villa
You pay every item directly and yourself: full control, full responsibility.
- Electricity
- Heating
- Water and drainage
- Waste collection
- Insurance
- Chimney sweeping for a fireplace
- Maintenance and repairs
Co-op apartment
A lot is bundled into the monthly fee: predictable, but dependent on the co-operative's finances.
Handled by the co-operative through the fee
- Heating
- Water
- Building maintenance
What you still pay yourself
- Household electricity
- Home insurance for a co-op apartment
What the monthly fee covers varies between housing co-operatives: sometimes heating and water are included, sometimes not. And a villa's maintenance does not show up every month, but the roof, facade and drainage will not last forever.
Total monthly cost
19 542 kr/month
- Interest7 933 kr
- Amortisation5 667 kr
- Monthly fee3 500 kr
- Running costs2 042 kr
- Insurance400 kr
5 667 kr/month of the total is amortisation (repayment), a form of forced saving that builds your equity rather than a pure cost.
Why the listing’s running costs are often optimistic
Listing running costs are not regulated down to the last detail, and different agents count differently. Sometimes items are missing entirely. Maintenance is almost always left out, and sometimes broadband, insurance or an association fee is not counted. Sometimes the figure builds on the previous owner’s consumption, perhaps a single household rarely home, while you are a family of four cooking, washing and showering far more.
Energy prices matter too. Running costs calculated during cheap-electricity times look low, but can become something else entirely in a cold winter with high prices. Take the listing’s figure as a starting point, not a truth. Count on the real cost usually running higher once you add what is missing and adjust for your own household size.
How to verify the numbers
Ask for records instead of trusting a summary figure. For a house, ask to see actual electricity and heating costs for the last year, preferably split by month so you see the winter peaks. Check what water, sewage and waste cost in the municipality, and which heat source the house has: a house with direct electric heating and poor insulation costs far more to heat than one with a modern heat pump.
For a tenant-owner apartment, read the association’s annual report. Check debt, planned maintenance, and whether the fee recently rose or is expected to. Ask what the fee actually includes. Then add every item yourself and build your own figure: fee or direct running costs, plus your household power, insurance, broadband and any association fee. It almost always lands more realistic than the listing’s.
Running costs, housing budget and mortgage
Running costs are one building block of your housing budget. Your real monthly cost is the mortgage interest, plus amortisation, plus running costs. The bank also runs its own calculation when you apply for a loan. In the so-called left-to-live-on calculation, the bank uses a higher stress-tested rate and adds a standard allowance for running costs, to see you manage the home even if rates rise. High running costs thus eat both your own margin each month and how much the bank dares lend.
That is why tracking running costs early pays off. Not first when you stand in bidding. On SökHem you start with a buying brief stating your budget, and the matching finds fitting homes, even ones not yet listed publicly. Searching proactively, you have time to request records, calculate the real monthly cost, and check with the bank before moving on. Then you know a home actually adds up financially long term, not just that the price looked right in the listing.