Introduction

This guide explains how to connect your One-Stop Shop (OSS) VAT setup from e-conomic to TRAEDE so that TRAEDE can send B2C invoices to e-conomic with the correct VAT code for each EU country.
This is the second part of the OSS setup, assuming you have already prepared your VAT accounts and codes in e-conomic.

Open the e-conomic integration in TRAEDE

1. Go to App Store.

2. Select e-conomic.

3. At the top, click the Accounting tab.

This is where you configure how TRAEDE sends invoices to e-conomic.

Default settings

At the top of the page, ensure:

• Sync method is set to Faktura module (Kassekladde-style invoicing).

  • This ensures TRAEDE sends invoices to the correct location in e-conomic.

Add VAT rules for each EU country

In order for TRAEDE to send correct VAT codes, you need to set up a rule for every EU country you sell B2C to.

Step 1 — Create a new rule

1. Click Add new rule.

2. A dashed rule box appears.

Step 2 — Configure the rule

Inside the rule box, select:

1. Customer type:

   • Set to B2C

2. Country:

   • Select the country this VAT rule applies to

   • Example: Germany

3. Sync as:

   • Choose Kassekladde

4. Revenue account:

   • Select your B2C EU revenue account

   • Example: B2C EU

   ⚠️ Important:
   Do NOT choose a VAT account here.
   The VAT account is handled automatically in e-conomic.

5. VAT code:

   • Enter the exact VAT code used in e-conomic for that country

   • Examples:

     • Germany → DE19

     • Sweden → SE25

     • Netherlands → NL21

     • Spain → ES21

6. Click Save.

Add rules for all EU countries

Repeat the process:

• Click Add new rule

• Set B2C

• Select the next country

• Choose Kassekladde

• Set the B2C EU revenue account

• Enter that country’s VAT code

• Save

Continue until all EU countries you sell to have been configured.

For example:

(Codes depend on your e-conomic setup; always copy them exactly as they appear in e-conomic.)

Testing your setup

TRA EDE includes a built-in tool to confirm your VAT rules are correct.

1. Click Test settings.

2. Choose Enter manual invoice amounts.

3. Select B2C.

4. Enter an example invoice amount (e.g. 1000 DKK).

5. Select a country (e.g. Germany).

6. Click Test settings again.

TRA EDE will show:

• Which Kassekladde is used

• Which revenue account

• Which VAT code is applied

This confirms the rule is working correctly before going live.

What happens next

Once all rules are added:

• Every B2C invoice in TRAEDE is sent to e-conomic

• Each invoice is automatically given the correct VAT code based on destination country

• Accounting stays compliant with EU One-Stop Shop requirements