BRF Interest Sensitivity: The Key Figure That Sets Your Fee
Räntekänslighet shows how much a Swedish housing association must raise fees if rates climb one point. How it is calculated, what counts as high, where it sits.
The monthly fee looked reasonable. The loan book behind it did not.
Räntekänslighet, interest sensitivity, is a key figure every Swedish bostadsrättsförening (a tenant-owner housing association) must publish for financial years beginning in 2023 or later. The Swedish Accounting Standards Board, Bokföringsnämnden, defines it as the association's interest-bearing debt divided by its income from annual fees. The result is the percentage the fees may need to rise if interest rates climb one percentage point.
Where does the figure come from?
It comes from the law. Since the amendment Lag (2022:1028), chapter 6, section 3 a of the Annual Accounts Act, Årsredovisningslagen (1995:1554), requires every bostadsrättsförening to report five key figures in its management report: the annual fee per square metre, debt per square metre, savings per square metre, interest sensitivity, and energy cost per square metre. If the year ends in a loss, the same section requires the association to explain what the loss means for its ability to finance future commitments.
Bokföringsnämnden turned the law into a calculation rule in its general recommendation BFNAR 2023:1, which applies to financial years beginning after 31 December 2022. Point 5 of that recommendation requires the figures to be shown for the financial year and the three preceding years, so a 2025 annual report carries a four-year row you can read as a trend.
How is räntekänslighet calculated?
Point 9 of BFNAR 2023:1 states the formula: the association's interest-bearing debt on the balance sheet date divided by its income from annual fees during the year. Bokföringsnämnden's own guidance for housing associations explains what the number means: it shows how many percent the fees may need to be raised when interest costs rise.
The guidance works through an example. An association with 100 million kronor of interest-bearing debt and 7.75 million kronor in annual fees has a räntekänslighet of 13 (12.90 to be exact). Bokföringsnämnden's reading: the annual fees may need to rise by 13 percent if the interest rate rises by one percentage point.
The same example puts numbers on a single flat. The association has 12,500 square metres of fee-paying floor space, so the 7.75 million kronor works out to about 620 kronor per square metre a year. For a 70 square metre flat that is roughly 43,400 kronor a year in fees, and a 13 percent increase is about 5,600 kronor a year, or around 470 kronor a month. That arithmetic is ours, built only on the figures in Bokföringsnämnden's example.
| Rate rise | Fee increase (%) | |
|---|---|---|
| 1 percentage point | +13% | |
| 2 percentage points | +26% | |
| 3 percentage points | +39% |
What counts as high?
The law sets no threshold, so the benchmarks come from the banks and the housing federations that read thousands of these reports.
SEB calls 0 to 5 percent a good value and tells buyers to watch out above 10 percent. SBAB puts a good value under 6 percent and says to look closer above 10, with the example that a figure of 5 means fees must rise 5 percent for each percentage point of rate increase. HSB, the housing cooperative federation, grades the figure in four bands: low at 5 percent or under, normal from 5 to 9, high from 9 to 15, and very high above 15.
| Institution | Threshold (%) | |
|---|---|---|
| SEB | 10% | |
| SBAB | 10% | |
| HSB (start of 'high') | 9% |
What does the figure not tell you?
It is an average for the whole association. Point 4 of BFNAR 2023:1 requires the association to say so when a key figure is not representative of the individual flats, for example when members paid different initial contributions. Bokföringsnämnden also notes in its guidance that the fee side of the formula includes only the annual fee under the Tenant Ownership Act, not parking, internet or commercial rents, so an association with large commercial income can look more sensitive than its cash flow really is.
The figure describes the balance sheet date. It does not say when the loans reset, and it does not replace the loan note in the accounts, where the maturities are listed.
Where do you find it?
In the annual report's management report, förvaltningsberättelsen, under the multi-year overview, flerårsöversikt, as a table with four years side by side. Bokföringsnämnden's guidance says the figures may be presented in table form and that any definitions may sit next to them. The report is the seller's document to hand over, and the agent's to request from the association.
We do not give buying advice. What the published rules support is narrower: the association must print this number, it must show four years of it, and the banks that lend against these flats treat anything above 10 percent as a reason to read the rest of the report. AiMYNDi reads the annual report for you and puts räntekänslighet next to the debt, the savings and the maintenance plan. An example of what a report looks like shows how the figures are laid out. If the association's status as äkta or oäkta is the next thing you want to check, the tax rules for an oäkta bostadsrättsförening are the companion piece, and Sweden's 2026 mortgage rules cover the loan on your side of the table.
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