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Fortnox sales account mapping for OSS 

When selling cross-border within the EU, Fortnox requires separate sales accounts per country to correctly support OSS reporting.


Preparation

When preparing Fortnox you make sure you have done step 4 here.

https://knowledge.junipeer.io/knowledge-base/guide-fortnox-settings-before-starting-integration

 

How to

In the Fortnox settings this is where you can manage the sales accounts mapping for OSS or for any other reason, ex B2B, B2C, Markets etc.

Key principle:

Use 3000-series accounts (sales accounts), not 2000-series accounts (VAT accounts).

Setting up OSS Mapping

You create an entry per country in the Sales Account Mapping section and assign:

  • Country Code

  • Default Account Number (e.g., 3000, 3001, 3002…)

  • You can also set different sales accounts per VAT rate. Ex 25%, 12%, 6% etc.

CSV Import Option

You can also import all sales account mappings using the CSV Import function.
The template includes:

  • Country Code

  • Default Account Number

Additional options are available if needed:

  • VAT rate mapping

  • Shipping account number

  • Fee account number

  • Credit voucher account number

Importing via CSV is recommended if you manage multiple EU markets.