Sunil RaoSwedish mortgage rules trip up buyers at three distinct stages. First: what will this actually cost each month? Second: how much will the bank even let me borrow? Third: will I pass the hidden stress test called the KALP? This article answers all three, with the actual numbers banks use in 2026.
Phase 1 — Your actual monthly cost (bolånekalkyl)
Your monthly mortgage payment is not one number. It splits into three separate lines, and each one works differently.
Ränta (interest) is what you pay the bank for borrowing money. With Riksbanken's (Sweden's central bank) policy rate at 1.75% as of 24 June 2026, variable three-month mortgage rates at major Swedish banks are running at roughly 2.5–3%. On a SEK 3,000,000 mortgage at 2.75%, that is SEK 6,875 in gross interest per month.
Amortering (mandatory repayment) is the share of the loan principal you must pay down each year by law. The amount depends on how big your loan is relative to the property value — more on this below.
Avgift/driftkostnad (monthly fee or running costs) is either your bostadsrättsförening (housing association) monthly fee — typically SEK 2,000–5,000 for a Stockholm apartment — or, for a house, the estimated annual running costs divided by 12.
What this means for us: on a SEK 3M variable mortgage at 2.75%, your interest alone is roughly SEK 6,875/month before the tax deduction. Add mandatory repayment and the condo fee and your total out-of-pocket is closer to SEK 12,000–14,000/month depending on your loan-to-value ratio.
The tax deduction that most calculators underplay
Sweden gives you a 30% tax reduction on mortgage interest paid up to SEK 100,000 per year. Interest above SEK 100,000 gets a 21% reduction (Inkomstskattelagen 67 kap 10§, administered by Skatteverket). This is not an allowance you claim — Skatteverket calculates it automatically from the interest data your bank reports.
What this means for us: that SEK 6,875/month in gross interest (SEK 82,500/year) is reduced by 30%, cutting your real net interest cost to about SEK 4,813/month. That is a SEK 2,062/month saving, or SEK 24,750 back in your pocket each year.
What happens if rates go up 2–3%?
This is the question that matters most for variable-rate borrowers. On a SEK 3,000,000 loan, each 1% increase in your mortgage rate adds roughly SEK 2,500/month in gross interest (before the tax deduction). A 2% rise from 2.75% to 4.75% would add SEK 5,000/month. A 3% rise to 5.75% would add SEK 7,500/month.
Use the calculator at the top of this page to run your own stress test.
What this means for us: most people on a variable rate can absorb a 1% rise. A 3% rise — which is exactly what happened in Sweden between 2022 and 2023 — doubles the pressure on household budgets.
Key mortgage numbers at a glance
| Rule / Metric | Value | Notes |
|---|---|---|
| Riksbanken policy rate | 1.75% | Unchanged since 24 June 2026 (Riksbanken) |
| Typical variable mortgage rate | 2.5–3% | Policy rate + bank margin; verify with your bank |
| Interest tax deduction — up to SEK 100k/year | 30% | Skatteverket — IL 67 kap 10§ |
| Interest tax deduction — above SEK 100k/year | 21% | Skatteverket — IL 67 kap 10§ |
| Monthly cost per SEK 1M borrowed at 2.75% | ~SEK 2,292 | Gross interest only, before tax deduction |
| Net monthly cost per SEK 1M at 2.75% after 30% deduction | ~SEK 1,604 | Applies if total annual interest ≤ SEK 100,000 |
Phase 2 — How much can you borrow? (hur mycket får jag låna?)
Before you fall in love with a property on Hemnet, you need to know two hard ceilings: the regulatory limit on how much the bank will lend against the property, and the income-based limit on how much debt your salary can support.
The 10% down payment rule (bolånetak)
The Swedish mortgage cap (bolånetak) allows banks to lend up to 90% of the property value. You must bring at least 10% in cash — this is your kontantinsats (down payment). On a SEK 4,000,000 apartment, that is SEK 400,000 minimum in your own funds before the bank will proceed (Lag 2026:226).
There is an important exception: if you already own a property and want a top-up loan (tilläggsslån) for renovations, the combined LTV is capped at 85% — not 90%.
What this means for us: the 10% rule is the cash barrier. On a typical Stockholm two-bedroom at SEK 4.5M, you need SEK 450,000 in cash before the bank conversation even begins.
The income multiple cap
Swedish banks apply a ceiling on how much you can borrow relative to your gross annual household income. The standard limit is 4.5 times your combined gross annual salary (which you can check using our Swedish Net Salary Calculator).
What this means for us: a household earning SEK 1,200,000 gross per year (two people each earning SEK 600,000) can borrow a maximum of SEK 5,400,000 under the income multiple rule. That sets your Hemnet search budget before you even talk to a bank.
Does existing debt reduce my borrowing power?
Yes, significantly. Student loans (CSN), car finance, and other monthly obligations all count as outgoing costs in the bank's calculation. A SEK 1,500/month student loan repayment reduces your effective monthly surplus — which directly shrinks what the KALP test (Phase 3) will allow.
What this means for us: a SEK 200,000 remaining student loan at SEK 1,500/month in repayments can reduce your mortgage ceiling by roughly SEK 300,000–500,000, depending on the bank's model.
How much cash do you actually need to bring?
| Property price | Minimum cash (10%) | Max bank loan (90%) |
|---|---|---|
| SEK 2,000,000 | SEK 200,000 | SEK 1,800,000 |
| SEK 3,500,000 | SEK 350,000 | SEK 3,150,000 |
| SEK 5,000,000 | SEK 500,000 | SEK 4,500,000 |
| SEK 7,000,000 | SEK 700,000 | SEK 6,300,000 |
Phase 3 — The KALP test (kvar att leva på)
KALP stands for "kvar att leva på" — Swedish for "left to live on." It is the bank's internal stress test, required by Finansinspektionen (the Swedish Financial Supervisory Authority), that many buyers fail without understanding why.
What the kalkylränta actually does
Even though variable mortgage rates are around 2.75% today, banks do not test you at 2.75%. They test you at a hypothetical kalkylränta (stress-test rate) of around 7%. This is not a regulatory fixed number — it is a bank practice that has converged at 7% across Sweden's major lenders.
At 7%, the monthly interest on a SEK 3,000,000 mortgage is SEK 17,500 — more than double the current actual rate. The bank checks: after paying this hypothetical amount, plus amortisation, plus your monthly expenses, do you have enough left to live on?
What this means for us: if your budget is tight at today's 2.75% rate, the bank may still reject your application because you fail the 7% scenario. The test is designed to ensure you could survive a rate crisis similar to 2022–2023.
What the bank assumes you spend on food and living costs
Banks do not ask what you actually spend on groceries. They use standard tables published annually by Konsumentverket (the Swedish Consumer Agency) for cost-of-living assumptions. These are based on household size and are used uniformly across all Swedish banks for the KALP calculation.
Estimated 2026 Konsumentverket monthly living cost benchmarks (excluding housing):
| Household type | Monthly living costs | Notes |
|---|---|---|
| Single adult (25–50 years) | SEK 8,400 | Konsumentverket 2026 — food SEK 2,730 + individual SEK 2,140 + shared SEK 3,530 |
| Two adults (25–50 years) | SEK 14,130 | Konsumentverket 2026 — food SEK 5,460 + individual SEK 4,280 + shared SEK 4,390 |
| Two adults + two children (ages 7–10, 11–14) | SEK 25,210 | Konsumentverket 2026 — food SEK 10,240 + individual SEK 8,440 + shared SEK 6,530 |
| Two adults + three children (ages 7–10, 11–14, 15–17) | SEK 31,630 | Konsumentverket 2026 — food SEK 13,290 + individual SEK 10,830 + shared SEK 7,510 |
What this means for us: a couple with two children (ages 7–10 and 11–14) has SEK 25,210/month in assumed living costs before housing is even counted. If your combined net salary is SEK 50,000/month, the bank starts the KALP calculation with only SEK 24,790 available to cover mortgage interest (at 7% stress rate), amortisation, and the condo fee.
The amortisation tiers that affect your KALP
Your mandatory annual repayment depends on your loan-to-value ratio (LTV — how much you owe versus what the property is worth). Two tiers apply in 2026 (FFFS 2016:16):
| LTV (loan ÷ property value) | Annual amortisation required | Monthly cost on SEK 3M loan |
|---|---|---|
| Above 70% | 2% per year | SEK 5,000/month |
| 50%–70% | 1% per year | SEK 2,500/month |
| Below 50% | None required | SEK 0 |
Note: The old rule that added an extra 1% amortisation for borrowers with loans above 4.5 times their income was removed in February 2023 (FFFS 2022:12). The calculation is now simpler and slightly more forgiving for high-income-multiple borrowers.
What this means for us: if you borrow SEK 3,000,000 on a property worth SEK 3,333,333 (90% LTV), you are in the 2% tier — SEK 5,000/month in mandatory repayments on top of your interest. That is SEK 60,000/year leaving your account whether the rate goes up or not.
Putting it all together: a sample KALP calculation
Two adults earning a combined SEK 90,000/month gross (roughly SEK 64,000/month net). They want to borrow SEK 3,500,000 for a SEK 3,900,000 apartment (90% LTV, 2% amortisation required). Monthly condo fee: SEK 3,500.
| Item | Monthly amount | Basis |
|---|---|---|
| Combined net income | SEK 64,000 | After tax (approximate) |
| Interest at 7% kalkylränta | −SEK 20,417 | SEK 3,500,000 × 7% ÷ 12 |
| Mandatory amortisation (2%) | −SEK 5,833 | SEK 3,500,000 × 2% ÷ 12 |
| Monthly condo fee (avgift) | −SEK 3,500 | Property-specific |
| Konsumentverket living costs (2 adults, 25–50 yrs) | −SEK 14,130 | Konsumentverket 2026 PDF standard |
| KALP result (left to live on) | SEK 20,120 | Must be positive — bank sets its own floor |
A positive KALP result means this couple would likely pass the bank's test. Most banks require the KALP to be at least SEK 5,000–7,000/month positive. The exact floor varies by bank.
What this means for us: the KALP is the test that fails people who look fine on paper. Even if your income multiple is under 4.5× and you have the 10% down payment, a tight KALP — especially with children or existing debt — can kill the application.
Estimate only. Talk to a qualified adviser before acting on anything here.
NordDaily Tips
Actionable Tip: Nordic banks allow you to negotiate interest rate discounts (ränterabatt) on your mortgage. Compare the average actual rates (snittränta) across banks rather than their advertised list rates.
Sources
- Riksbanken — Policy rate 1.75%, effective 24 June 2026: riksbank.se
- Finansinspektionen — FFFS 2016:16 (amortisation requirements as amended by FFFS 2022:12)
- Lag 2026:226 — Swedish mortgage cap (bolånetak), 90% LTV
- Inkomstskattelagen 67 kap 10§ — Mortgage interest deduction (ränteavdrag)
- Konsumentverket — Hushållskostnader 2026: konsumentverket.se
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Frequently asked questions
What is the minimum down payment for a Swedish mortgage in 2026?
The minimum down payment (kontantinsats) is 10% of the property value. This is set by the Swedish mortgage cap (bolånetak) under Lag 2026:226. So on a SEK 4,000,000 property you need at least SEK 400,000 in cash before the bank will consider your application.
What interest rate do Swedish banks use to test my KALP?
Banks stress-test your finances using a kalkylränta of around 7%, not the actual market rate. With Riksbanken's policy rate at 1.75% as of June 2026 and variable mortgages around 2.5–3%, the 7% test rate is roughly triple what you would pay today. This gap is intentional — it protects borrowers from defaulting if rates rise sharply.
How much can I borrow for a mortgage in Sweden?
Swedish banks generally cap your total mortgage at 4.5 times your gross annual household income. On top of that, the bank's KALP test (Kvar att leva på) must leave you with enough income after housing costs and living expenses to avoid hardship. The more restrictive of those two limits is what the bank will offer.
How does the mortgage interest tax deduction (ränteavdrag) work in Sweden?
You get a 30% tax reduction on mortgage interest paid up to SEK 100,000 per year. Interest above SEK 100,000 gets a 21% reduction. This applies per person, not per household. The deduction is calculated automatically in your annual tax return by Skatteverket (the Swedish Tax Agency).
How much must I repay on a Swedish mortgage each year?
The amortisation (amortering) requirement depends on your loan-to-value ratio (LTV). If your mortgage is more than 70% of the property value, you must repay 2% of the loan per year. If it is between 50% and 70%, you must repay 1% per year. Below 50% LTV there is no mandatory amortisation. These rules come from Finansinspektionens FFFS 2016:16.
Estimate only. Talk to a qualified adviser before acting on anything here.