Is Fortnox or Sage 50 better?

Neither clearly leads. Fortnox starts at Free and Sage 50 at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Fortnox or Sage 50?

Fortnox has a free tier; the other does not. Paid plans start at Free for Fortnox and $29/month for Sage 50.

Does Fortnox or Sage 50 run on more platforms?

Fortnox runs on Web. Sage 50 runs on Windows.

Can I use Fortnox for free?

Yes. Fortnox has a free tier, so you can try it without paying. Sage 50 starts at $29/month.

What is Fortnox best used for?

Fortnox is most often used for registering swedish corporations with guided formation assistance, selling unpaid invoices to improve cash flow, managing multiple client businesses from bureau dashboard, integrating payroll with swedish banking automation. Of those, registering swedish corporations with guided formation assistance and selling unpaid invoices to improve cash flow are not what Sage 50 is typically brought in for.

What can Fortnox do that Sage 50 cannot?

Sage 50 covers Local company data file, Nominal, sales and purchase ledgers, Bank reconciliation, VAT and sales tax handling.

Accounting · head to head

Fortnox vs Sage 50

Fortnox

Accounting

Swedish cloud accounting and business platform for bookkeeping, invoicing and payroll

From: Free
Rated: -

Full review Website

Sage 50

Accounting

Windows desktop accounting with the ledger held in a local data file rather than in a browser

From: $29/month
Rated: -

Full review Website

The short version

Only Fortnox has a free tier, so it costs nothing to try first.
Each has a real cost: Fortnox corporate packages alone span at least 7 named tiers (Mini through Stor+) priced from 209 kr/man to 919 kr/man, and add-on programs are billed separately per module (SEK); Sage 50 it is a Windows desktop application, so Mac users need a virtual machine or a hosted desktop, and every added remote worker becomes a hosting bill rather than another browser tab.
Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Fortnox and Sage 50 actually diverge.

Attributes where Fortnox and Sage 50 differ
Attribute	Fortnox	Sage 50
Starting price	Free	$29/month
Free tier	Yes	No
Platforms	Web	Windows
Founded	Unknown	1981

Identical on both: pricing model (subscription), user rating (Not yet rated), category (Accounting).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Fortnox

Nothing recorded that Sage 50 does not also cover.

Only in Sage 50

Local company data file
Nominal, sales and purchase ledgers
Bank reconciliation
VAT and sales tax handling
Stock control
Job and project costing
Multi user access
Microsoft 365 integration

What people use each for

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

Fortnox

Registering Swedish corporations with guided formation assistancenot Sage 50
Selling unpaid invoices to improve cash flownot Sage 50
Managing multiple client businesses from bureau dashboardnot Sage 50
Integrating payroll with Swedish banking automationnot Sage 50

Sage 50

An established small business that wants its accounting data physically in the building rather than on a vendor's serversnot Fortnox
A construction or trade business needing job costing and stock depth that the entry level cloud products do not matchnot Fortnox
A company with unreliable internet where a browser only ledger would stop work whenever the line dropsnot Fortnox
A long standing user with a decade of transaction history in the file for whom migrating to anything else is the expensive optionnot Fortnox

Where each one falls short

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

Fortnox

Corporate packages alone span at least 7 named tiers (Mini through Stor+) priced from 209 kr/man to 919 kr/man, and add-on programs are billed separately per module (SEK)
The Fortnox Access verification tier is priced by transaction volume, rising from 9 kr/man at zero verifications to 199 kr/man at 1000+ verifications (SEK), so cost is not fixed and scales with usage

Sage 50

It is a Windows desktop application, so Mac users need a virtual machine or a hosted desktop, and every added remote worker becomes a hosting bill rather than another browser tab.
Multi user working shares a data file over the network, so all users effectively need to be on the same local network or on the same hosted server, and file corruption in a shared file environment is a recovery from backup rather than a support ticket.
The United States and United Kingdom editions are separate products with different tax engines, so a business trading in both markets cannot run one Sage 50 across them, and experience or add ons from one edition do not transfer to the other.
Additional users are licensed individually at full price, which means a part time bookkeeper, an approver who signs off purchase invoices and a manager who only ever reads reports all cost the same as the full time finance person.
Sage's development effort has moved to its cloud accounting products, so the eventual move off Sage 50 is a re-implementation with historical data conversion and a fresh chart of accounts rather than an in place upgrade, and that project only gets larger the longer the file grows.

Pricing, plan by plan

Fortnox

Free

New Company TrialFree
- 6-month free trial for newly started businesses

Sage 50

$29/month

Pro Accounting$50/month
- Core accounting
- 1 user
- Basic reports
Premium Accounting$85/month
- 5 users
- Job costing
- Inventory

Which should you pick?

Choose Fortnox if

You want to start without paying.

Fortnox review

Choose Sage 50 if

You need local company data file.
You work on Windows.
You also want nominal, sales and purchase ledgers.

Sage 50 review

Questions people ask

Is Fortnox or Sage 50 better?: Neither clearly leads. Fortnox starts at Free and Sage 50 at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fortnox or Sage 50?: Fortnox has a free tier; the other does not. Paid plans start at Free for Fortnox and $29/month for Sage 50.
Does Fortnox or Sage 50 run on more platforms?: Fortnox runs on Web. Sage 50 runs on Windows.
Can I use Fortnox for free?: Yes. Fortnox has a free tier, so you can try it without paying. Sage 50 starts at $29/month.
What is Fortnox best used for?: Fortnox is most often used for registering swedish corporations with guided formation assistance, selling unpaid invoices to improve cash flow, managing multiple client businesses from bureau dashboard, integrating payroll with swedish banking automation. Of those, registering swedish corporations with guided formation assistance and selling unpaid invoices to improve cash flow are not what Sage 50 is typically brought in for.
What can Fortnox do that Sage 50 cannot?: Sage 50 covers Local company data file, Nominal, sales and purchase ledgers, Bank reconciliation, VAT and sales tax handling.

Answered from the vendors’ own pages

Fortnox: Does Fortnox offer a free trial?

Yes, newly started businesses receive their first six months in Fortnox at no cost, followed by subscription-based pricing.

Source

Sage 50: Is Sage 50 cloud software?

No. The application runs on Windows and the ledger is a local file. The Sage 50cloud tiers add Microsoft 365 integration and a sync service for remote access, but the accounting itself is still desktop software.

Fortnox: What pricing tiers does Fortnox offer?

Fortnox offers tiered subscription packages that vary by module (accounting, invoicing, payroll) but specific pricing details are not listed on the main website.

Source

Sage 50: Can my accountant work in it?

Yes, and many accountants in the United Kingdom and the United States know it well. Practically they will either take a backup of the company file, or connect through the remote data access service, or work on a hosted copy. Agree which of those before you start.

Fortnox: How can I find Fortnox pricing information?

Detailed pricing is available on the packages page (/paket), through a purchasing guide tool at buy-guide.fortnox.se, or by contacting sales representatives directly.

Source

Sage 50: Does it still require an annual subscription?

Sage moved Sage 50 to subscription licensing, so continued access and tax table updates depend on an active subscription. Confirm what happens to your ability to open historical data if you stop paying.

Sage 50: Is the United Kingdom version the same product as the United States version?

No. They share a name and a heritage but they are different codebases with different tax handling. Buy the edition for the country where you file.

Sage 50: What about payroll?

Payroll is a separate Sage product with its own subscription and per employee cost. Budget for it separately rather than assuming the accounting subscription covers it.

Sage 50: How hard is it to move to a cloud system later?

Expect to convert opening balances and a limited window of transaction history rather than the full file, and to redo the chart of accounts, the customer and supplier records and any custom reports. Most businesses do it at a year end for that reason.

Fortnox vs Sage 50

Fortnox

Sage 50

The short version

Where they differ

What each one covers

Only in Fortnox

Only in Sage 50

What people use each for

Fortnox

Sage 50

Where each one falls short

Fortnox

Sage 50

Pricing, plan by plan

Fortnox

Sage 50

Which should you pick?

Choose Fortnox if

Choose Sage 50 if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Fortnox

More on Sage 50

Keep looking

Other head to heads