Setup OSS Tax rules with Snelstart and Magento 2

This guide explains how to configure One Stop Shop (OSS) tax rules using SnelStart with Magento 2. OSS simplifies VAT reporting for EU distance sales by allowing you to report all EU VAT through your home country's tax authority.

Tip: Not sure which OSS ledger accounts to use? See Setup Helper: Configure Magento Using SnelStart Data to learn how to create a test invoice in SnelStart and fetch the exact values you need.

What is OSS?

One Stop Shop (OSS) is an EU VAT scheme for distance selling to consumers in other EU countries:

• Before OSS: Register for VAT in each EU country where you exceed thresholds
• With OSS: Report all EU VAT through one registration in your home country
• Threshold: €10,000 annual EU distance sales (combined all countries)

Prerequisites

Before configuring OSS in Magento:

1. Enable OSS in SnelStart first

   • This must be done in your SnelStart application
   • See: SnelStart Kennisplein

2. Configure EU VAT rates in Magento

   • Each destination country needs its VAT rate configured

3. Verify EU country list in Magento

   • Stores → Configuration → General → Country Options
   • Check European Union Countries list

Step 1: Configure VAT Rates in Magento

1. Go to Stores → Tax Zones and Rates
2. Add each EU country with their local VAT rate:

3. Go to Stores → Tax Rules
4. Create tax rules that apply the correct rates based on destination country

Step 2: Enable OSS in Magento

1. Go to Stores → Configuration → Accounting → SnelStart
2. Navigate to One Stop Shop section
3. Set Enabled to Yes

Step 3: Configure OSS Ledgers

Configure which ledger accounts to use for OSS sales:

Note: Click "Sync Ledger & Costs from SnelStart" first to import available ledgers.

Step 4: Country Mapping (Advanced)

For specific ledger accounts per country:

1. In the Country Mapping section
2. Add mappings for countries needing different ledgers
3. Each country can have its own:
   • Sales ledger
   • VAT ledger

This is useful when you need to track sales per country separately.

Step 5: Verify Configuration

1. Check connection status:

   • One Stop Shop field should show your OSS status from SnelStart

2. Place a test order:

   • Create an order from an EU country (not your home country)
   • Customer should be a consumer (B2C)
   • Create the invoice

3. Verify in sync logs:

   • Go to Accounting → Synchronisation Logs → Invoice
   • Check the OSS invoice synced correctly

4. Verify in SnelStart:

   • Open the synced invoice
   • Confirm it's booked to OSS ledger
   • Check VAT is recorded to VAT Ledger

How OSS Invoices Are Processed

When an invoice is synced:

1. System checks: Is destination an EU country? Is buyer a consumer?

2. If OSS applies:

   • Uses OSS ledger accounts instead of standard product ledgers
   • Records VAT to the OSS VAT Ledger
   • Applies destination country VAT rate

3. If OSS doesn't apply:

   • B2B sales → Normal intra-EU rules (reverse charge)
   • Same country → Normal domestic VAT
   • Outside EU → Export/non-EU rules

OSS Reporting in SnelStart

For quarterly OSS reporting:

1. Open SnelStart
2. Go to reports/VAT section
3. Generate OSS report for the quarter
4. Submit to Belastingdienst

The module ensures correct ledger booking for easy OSS report generation.

Troubleshooting

OSS not being applied

Wrong ledger used for OSS

VAT rate incorrect

OSS status shows "Not enabled"

B2B vs B2C

OSS only applies to B2C (consumer) sales:

The module automatically determines this based on whether the customer has a VAT number.

Need More Help?

External Resources:

• SnelStart Kennisplein - OSS
• Belastingdienst - One Stop Shop

Documentation:

• All Help Articles - Complete documentation overview

Support:

• Contact Support - Get help from our team