We launch BoKalk — an independent housing cost calculator

Not just the interest. Not just the fee. The full picture: interest plus amortisation plus fee plus operating costs (driftkostnader) plus property tax (fastighetsavgift) plus tax deduction (ränteavdrag) — and what happens if the interest rate rises?

That is the question no calculator really answers. The banks calculate their affordability assessment (KALP — kvar att leva på). The estate agents show the asking price and monthly fee. But the final answer to what the home costs every month with everything included — and whether you can handle it if things take a turn for the worse — that is something you have had to figure out yourself. Until now.

What we are building

BoKalk.se starts as a website with guides and knowledge about housing finances. Not another “10 tips before buying a home”, but actual explanations: how the bank’s KALP calculation works, what the new mortgage rules from 1 April 2026 mean in actual numbers (raised mortgage ceiling, abolished debt-to-income requirement (skuldkvot), and stricter rules for supplementary loans), why housing associations’ annual reports may look different from the 2026 financial year onward when K3 accounting becomes mandatory — even though the association’s underlying finances are the same — and how to calculate what a home actually costs.

The app

In parallel with the website, we are developing the BoKalk app for Android and iOS. It does things the banks’ calculators do not: shows the complete monthly cost with all items gathered, calculates interest rate sensitivity so you see exactly how your finances are affected at plus one, two or three percentage points, performs a similar affordability assessment (KALP) to the bank’s — but before you talk to them, analyses housing associations’ finances with debt levels and a health rating, lets you compare multiple properties side by side using the same calculation model, and provides a 10-year forecast of how amortisation, value changes and interest rate risks affect your finances.

The app launches shortly. Register your interest below and we will be in touch directly.

Get in touch

Questions, feedback, or want to be among the first to test the app? Write to [email protected] or register your interest on the homepage.

Parts of this article were updated with the help of an AI system on 1 October 2026 and have not yet been reviewed by a human editor.

Christoffer, founder BoKalk