Few numbers affect a Swedish household as much as the mortgage rate, and few feel as far outside your control. But the rate is not weather that just happens to you. It is made of parts you can understand, and two of them you can actually influence: which bank you choose and how you negotiate. The rest is knowing what you are looking at.
Your rate broadly follows the Riksbank policy rate, which is 1.75% right now, plus the bank's margin. The list rate a bank advertises is almost never the one you should pay; the average rate is lower and it can be negotiated, especially with a low loan-to-value and if you gather your business in one place. Do not forget the interest deduction: the state pays back 30 percent of your interest costs up to 100,000 kr. One percentage point up or down means more than you think.
I will cover what drives the rate, whether to fix or float, how to negotiate it down, how the interest deduction works and what a single percentage point does to your monthly cost. Run your own loan in the mortgage calculator.
The policy rate and your rate
The Riksbank sets the policy rate to keep inflation near two percent. When prices rise too fast the policy rate is raised to cool the economy, and when momentum is needed it is cut. Banks' funding gets more or less expensive in step with that, and your mortgage rate follows, with some delay and with the bank's own margin on top. Right now the policy rate is at 1.75%. That is why "why are mortgage rates rising" is really a question about inflation and the Riksbank, not about your bank turning greedy overnight.
Fixed or floating?
A floating rate (three-month term) follows the market up and down and has historically been cheaper over time, but it swings. A fixed rate locks your cost for one, three or five years and gives calm, but you pay a premium for that security and tie yourself in. There is no right answer for everyone: the question is how much a rise would hurt your budget. If your finances can take the rate rising a few percentage points, you do not need to pay to fix. If they cannot, security may be worth the premium. Many split the loan and fix part of it.
List rate, average rate and negotiating
The list rate is the bank's official sticker price, and almost nobody pays it. What you want to know is the bank's average rate, that is what customers actually get, which every bank must publish. In between sits your room to negotiate. Two things give you the strongest hand: a low loan-to-value (you borrow a small share of the home's value) and gathering your business, salary account and savings, at the bank. Always ask for a better offer, compare with another bank, and come back; the rate is negotiable in a way most other prices are not.
The interest deduction
The state subsidises your interest costs. You get back 30 percent of the interest you paid up to 100,000 kr per person per year, and 21 percent on the part above that. So if you pay 40,000 kr in interest one year you get back 12,000 kr through tax, more or less automatically via your tax return. That means the real cost of your mortgage is about 30 percent lower than the rate looks, a detail that changes the whole comparison between borrowing and, say, amortising faster.
What a percentage point means
Take a loan of 3,000,000 kr. If the rate rises by a single percentage point the interest cost goes up by 30,000 kr a year before the deduction. After the 30 percent interest deduction that is a bit over 21,000 kr, so around 1,750 kr more a month net. The other way: if you manage to negotiate the rate down half a percentage point on the same loan you save a good 10,000 kr a year after the deduction, for one phone call. That is why the mortgage is the rate most worth caring about. Test exactly what different rates do to your own monthly cost in the mortgage calculator.
My recommendation
Stop staring at the list rate and do three things: check the bank's average rate, actively ask for a better offer with your loan-to-value as the argument, and factor in the interest deduction when you compare. Whether to fix or float is less about guessing the rate right and more about what your budget can take; start there. And do not forget the rate is only half the housing cost, amortisation is the other half. Work through the whole thing in the mortgage calculator, and if you are about to buy, read the guide to buying your first home.