Kantax vs Fiken
Fiken is Norway’s most popular accounting software for small businesses, with 130,000+ customers since 2014 and a reputation for being the easiest to use. Kantax is a newer, AI-driven alternative that bundles accounting and payroll into a flat 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 flat price for limited companies: from NOK 100/mo vs Fiken’s NOK 349/mo
- AI extraction of receipts: upload a receipt or invoice and get the fields filled in automatically
- Open REST API with webhooks — build your own integrations and automate
- Multi-currency with automatic daily rates from Norges Bank
Where Fiken is stronger
- Market leader with 130,000+ customers and a long track record (since 2014)
- Very simple, proven interface — often cited as the easiest to get started with
- Large ecosystem of accountants who already know Fiken
- Mature and well-documented — a safe, established choice
| Feature | Kantax | Fiken |
|---|---|---|
| Price (from) | from NOK 100/mo | NOK 349/mo (Ltd), 149 (sole prop.) |
| Flat, predictable price | Yes | Yes |
| Payroll with A-melding | Included | Included |
| Invoicing | Yes | Yes |
| VAT return to Altinn | Yes | Yes |
| AI receipt extraction | Yes | Partial |
| Open API | REST + webhooks | Yes |
| Free trial | 30 days | Yes |
Prices are from publicly available information (June 2026) and may change — check the vendor’s site for current pricing.
Verdict
Choose Fiken if you want the most established option with Norway’s largest user base and the Ltd price (NOK 349/mo) isn’t a dealbreaker. Choose Kantax if you want a lower flat price (from NOK 100/mo), AI receipt extraction and an open API for your own integrations. Both cover accounting, payroll, invoicing and VAT for Norwegian businesses.
FAQ
Is Kantax cheaper than Fiken?
For limited companies, yes: Kantax is from NOK 100/mo vs Fiken’s NOK 349/mo. For sole proprietorships Fiken starts at NOK 149/mo. All prices are ex. VAT and may change — check fiken.no for current pricing.
Do both Kantax and Fiken have payroll?
Yes. Both include payroll runs with A-melding, withholding tax, employer’s contribution, occupational pension (OTP) and holiday pay.
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.