Introduction

This guide explains how to set up One-Stop Shop (OSS) VAT in e-conomic when using the Kassekladde Faktura workflow.
The goal is to ensure that every B2C invoice sent from TRAEDE to e-conomic is booked with the correct VAT code based on the customer’s country—e.g., DK25, SE25, NL21, NO25, etc.

You will also learn the two available setup models:

1. One revenue account per country

2. One single EU revenue account (recommended for most brands)

What OSS VAT setup should achieve

When TRAEDE sends an invoice to e-conomic, it should look like this:

• A Danish order → DK VAT code

• A Norwegian order → NO VAT code

• A Swedish order → SE VAT code

• A Dutch order → NL VAT code

TRA EDE sends the VAT code via Kassekladde Faktura.
e-conomic must be prepared with matching VAT codes and revenue accounts so the sync works correctly.

Step 1 — Make sure Kassekladde Faktura is created in e-conomic

Before setting up VAT codes, confirm that you have a Kassekladde for TRAEDE to send invoices into.

If you do not have one:
Create a new Kassekladde in e-conomic → name it clearly (e.g. “TRA EDE Invoices”).

Step 2 — Decide your account structure

You now choose between two different ways to structure your OSS revenue accounts.

Option 1 — One revenue account per country (not preferred by most companies)

In this setup you create one account per EU country where B2C orders can occur.

Example:

• B2C Denmark

• B2C Sweden

• B2C Netherlands

• B2C Germany

• …and so on

How to create country-specific accounts

1. Go to Accounts (Kontoplan).

2. Click New account.

3. Enter:

   • A free account number (e.g. 1363)

   • Name: B2C Sweden

4. In the VAT code field, select the correct VAT code for the country (e.g., SE25).

5. Save.

Repeat this process for all countries you sell to.

Pros

• Very clear accounting per country.

Cons

• Creates a long, messy chart of accounts.

• Hard to maintain.

Option 2 — One single EU B2C revenue account (recommended)

Most companies prefer this method.

You simply:

1. Keep one revenue account for all EU B2C orders

2. Remove any VAT code from the account

3. Let the VAT code come directly from TRAEDE per invoice line

How to set it up

1. Go to Accounts.

2. Choose or create an account called something like B2C EU.

3. Remove the VAT code (leave blank).

4. Save.

This allows TRAEDE to send different VAT codes to the same account.
e-conomic fully supports having one account with multiple VAT codes across entries.

This greatly simplifies your chart of accounts.

Important: Why VAT code should come from TRAEDE

Each invoice TRAEDE sends already contains the correct VAT code based on:

• Customer shipping country

• OSS VAT setup inside TRAEDE

• B2C vs B2B rules

Because of this, the account in e-conomic should not override the VAT code.

What’s next

Now that your VAT accounts are ready, the next step is to connect these accounts inside TRAEDE so invoices are sent with the correct coding.

The next guide will show:

• How to assign accounts in TRAEDE

• How TRAEDE chooses VAT codes for each invoice

• How to test before going live