Softwr

Accounting · head to head

Fiken vs Karbon

Fiken logo

Fiken

Accounting

Norwegian accounting software for sole proprietors and small companies

From
219/month
Rated
-
Full reviewWebsite
Karbon logo

Karbon

Accounting

Practice management for accounting firms

From
$59/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Fiken bank integration available only as add-on (69 NOK/month); Karbon monthly billing option only available for teams of 4 or more users
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Fiken and Karbon actually diverge.

Attributes where Fiken and Karbon differ
AttributeFikenKarbon
Starting price219/month$59/month

Identical on both: pricing model (subscription), free tier (No), platforms (Web), user rating (Not yet rated), category (Accounting).

What people use each for

The jobs each tool is most often brought in to do.

Fiken

  • Solo accounting and invoicing for small businessesnot Karbon
  • Multi-user accounting collaboration at no extra costnot Karbon
  • Invoice management with EHF e-invoice supportnot Karbon
  • Bank integration for transaction trackingnot Karbon

Karbon

  • Automating client document collection for tax practice intakenot Fiken
  • Tracking all client requests in workflows tied to jobsnot Fiken
  • Aligning hours worked with billable time per engagementnot Fiken
  • Automating period close by connecting practice management to accountingnot Fiken
  • Streamlining client document submission and approval workflowsnot Fiken

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Fiken

  • Bank integration available only as add-on (69 NOK/month)
  • Project accounting requires separate add-on (69 NOK/month)
  • Payroll and employee features cost extra (69 NOK/month)
  • Physical mail invoicing costs 25 NOK per invoice

Karbon

  • Monthly billing option only available for teams of 4 or more users
  • Team plan at $59/month per user minimum cost may be expensive for smaller practices
  • No seat license discounts published; scaling costs linearly with user count

Pricing, plan by plan

Fiken

219/month
  • Base Plan$219/month
    • Complete accounting functionality
    • Unlimited invoice sending via email and EHF
    • Unlimited user accounts

Karbon

$59/month
  • Team$59/month
    • Per-user pricing
    • Designed for small accounting firms
    • Minimum team size of 4 for monthly billing
  • Business$89/month
    • Per-user pricing
    • Workflow automation
    • Integrations for growing practices
  • Enterprise$null/mo
    • Custom pricing
    • Tailored for large accounting firms
    • Dedicated support

Which should you pick?

Choose Fiken if

Nothing in the data separates Fiken from Karbon on the points above - pick on price and on how each one feels to use.

Fiken review

Choose Karbon if

Nothing in the data separates Karbon from Fiken on the points above - pick on price and on how each one feels to use.

Karbon review

Questions people ask

Is Fiken or Karbon better?
Neither clearly leads. Fiken starts at 219/month and Karbon at $59/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fiken or Karbon?
Fiken starts at 219/month and Karbon at $59/month.
Does Fiken or Karbon run on more platforms?
Both run on Web, so platform support will not decide this one for you.
What is Fiken best used for?
Fiken is most often used for solo accounting and invoicing for small businesses, multi-user accounting collaboration at no extra cost, invoice management with ehf e-invoice support, bank integration for transaction tracking. Of those, solo accounting and invoicing for small businesses and multi-user accounting collaboration at no extra cost are not what Karbon is typically brought in for.

Answered from the vendors’ own pages

Fiken: Is there a free trial for Fiken?

Yes, Fiken offers a 30-day free trial with no credit card required. After the trial, the base plan costs 219 NOK per month.

Source
Karbon: How much does Karbon cost?

Karbon pricing starts at $59 per user per month (Team plan, billed annually) or $79 per user per month (monthly billing for 4+ users). Business plan is $89/month annual or $99/month monthly. Enterprise pricing is custom.

Source
Fiken: Do additional users cost more on Fiken?

No, Fiken includes unlimited user accounts at no extra cost on the base plan.

Source
Karbon: Is there a discount for annual billing on Karbon?

Yes, Karbon offers annual billing at a discount compared to monthly. Team plan is $59/month annually versus $79/month monthly. Business plan is $89/month annually versus $99/month monthly.

Source
Fiken: What add-ons are available and how much do they cost?

Monthly add-ons include bank integration, project accounting, KID number system, and API access (69-99 NOK each). Time tracking, payroll, and expense reimbursements also cost 69 NOK per month. Annual tax filing costs 1,290 NOK for sole proprietors or 1,590 NOK for limited companies.

Source
Karbon: What is the minimum user requirement for monthly billing on Karbon?

Karbon requires a minimum team size of 4 users to access monthly billing. Teams smaller than 4 must choose annual billing.

Source
Fiken: What are the per-transaction costs?

SMS invoicing costs 3 NOK, e-invoicing via Vipps costs 5 NOK, physical mail invoicing costs 25 NOK, and credit checks cost 15 NOK per transaction.

Source
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