Kantax vs Fiken
Fiken is one of the most widely used accounting tools for small businesses in Norway. It reports 130,000+ business customers, has been around since 2014 and has a reputation for being easy to use. Kantax is a newer, AI-driven alternative with payroll included in the price from NOK 100/mo. Both are Norwegian-built and cover accounting, payroll, invoicing and VAT — here are the differences that actually matter.
This comparison is made by Kantax.
Where Kantax is stronger
- Lower base price: NOK 100/mo for one user (+NOK 50 per extra user) vs Fiken’s NOK 219/mo (as of Oct 2026)
- Payroll with A-melding included in the price — at Fiken payroll is an add-on from NOK 69/mo
- Open REST API with webhooks included — at Fiken the API is an add-on at NOK 99/mo
- Built-in AI connection: connect Claude to your books, with the access level you choose
Where Fiken is stronger
- Long track record (since 2014) and 130,000+ business customers, according to Fiken
- Extra users cost nothing
- Bank feed and VAT returns filed directly to Altinn today
- Very simple, proven interface, and many accountants already know Fiken
- Price (from)
- KantaxNOK 100/mo for 1 user, +50 per extraFikenNOK 219/mo (any company type)
- Extra users
- KantaxNOK 50/mo per extra userFikenIncluded
- Payroll with A-melding
- KantaxIncludedFikenAdd-on from NOK 69/mo
- Invoicing
- KantaxYesFikenYes
- VAT return to Altinn
- KantaxFigures ready for AltinnFikenYes
- AI receipt extraction
- KantaxYesFikenYes (reads receipts, suggests booking)
- Bank feed
- KantaxIn testing — not open to everyone yetFikenAdd-on, NOK 69/mo
- Open API
- KantaxREST + webhooks, includedFikenAdd-on, NOK 99/mo
- Free trial
- Kantax30 daysFiken30 days
Competitor prices are list prices ex. VAT from each vendor’s own pricing page as of 3 October 2026, and may have changed — check the vendor’s site for current pricing.
Verdict
Choose Fiken if you want a well-established option with a bank feed and VAT returns filed directly to Altinn today, or you have many users — extra users cost nothing at Fiken. Choose Kantax if you have few users and employees on payroll: payroll and the API are included from NOK 100/mo, and you can keep your books with AI. Prices as of October 2026, ex. VAT.
FAQ
Is Kantax cheaper than Fiken?
With up to three users, yes: Kantax costs NOK 100/mo for one user and NOK 50 per extra user, with payroll included. Fiken costs NOK 219/mo whatever the number of users, and payroll is an add-on from NOK 69/mo. With four or more users and no payroll, Fiken is cheaper. All prices are ex. VAT, as of October 2026 — check fiken.no/priser for current pricing.
Do both Kantax and Fiken have payroll?
Yes, both run payroll with A-melding. At Kantax payroll is included in the price; at Fiken it is an add-on from NOK 69/mo (as of October 2026).
Can I switch from Fiken to Kantax?
Yes. Many switch at the turn of a financial year when it’s simplest. Get in touch at kantax@kantos.ai if you’d like help with the move.