Your Slovak VAT registration and/or OSS registration has now been officially issued — excellent news!

This means your registration in Slovakia is complete, and you are now ready to begin compliant trading, invoicing, and VAT reporting.

This article explains what you need to do next, how to manage communication with the Slovak tax authorities, and how to keep your hellotax account fully updated.

✅ What You Should Do Now

1️⃣ Forward All Tax Office Letters or Emails to Your Account Manager

Once your VAT or OSS registration is active, the Slovak Financial Administration (Finančná správa) may send:

• Registration confirmations
• Requests for additional information
• Filing reminders
• Payment notices
• General correspondence

If you receive any letter or email directly, please forward it immediately to your hellotax Account Manager.

Why this matters:

• The document will be uploaded into your hellotax software account
• We maintain a complete compliance history
• This ensures smooth handling during audits or tax authority queries
• Nothing important gets missed

Keeping a complete correspondence trail is important for long-term VAT compliance in Slovakia.

2️⃣ Upload All Transaction Data on Time (Mandatory)

To prepare accurate Slovak VAT returns and, where applicable, OSS reports, all transaction data (including purchases and stock movements) must be uploaded to your hellotax account by:

📅 The 4th day of the month following the reporting period

This applies to:

• Marketplace sales (Amazon, eBay, etc.)
• Webshop sales
• Manual invoices
• Returns and refunds
• Stock transfers and movements

🔗 You can find full upload instructions in your hellotax account under:

Data Upload / Integration

Incomplete or delayed data uploads may result in:

• Incorrect VAT filings
• Penalties or interest charges
• Tax office clarification requests

Accurate and timely uploads are mandatory for compliance.

3️⃣ We Will Add Your New VAT Details to Your Account

hellotax will automatically enter into your software account:

• Your Slovak VAT identification number (IČ DPH)
• Your effective VAT start date
• Your applicable filing periods

This ensures:

• Correct reporting periods
• Accurate VAT calculations
• No issues with your first VAT return

Please note: OSS is a separate EU special scheme. Slovakia's Financial Administration operates the Union, non-Union and Import OSS schemes.

4️⃣ Inform hellotax of Any Other VAT or OSS Registrations

If your company holds VAT numbers in other EU countries or has an OSS registration elsewhere — even if hellotax does not manage those countries — you must inform us.

Why this is important:

• Other VAT numbers affect intra-EU reporting
• OSS determines where qualifying B2C VAT is declared
• Cross-border sales can affect Slovak VAT obligations
• It prevents duplicate or conflicting filings
• EU tax authorities exchange VAT information between Member States

Having a complete overview of your VAT registrations ensures accurate and compliant reporting across the EU.

📌 Summary of Your Responsibilities

⚠️ Important Reminder

For foreign persons registered for Slovak VAT, the Slovak Financial Administration states that VAT returns are generally due within 25 days following the end of the applicable tax period, where a return is required, and VAT due is payable within the same period.

Failure to meet VAT obligations may result in:

• Interest
• Penalties
• Requests for additional information
• Further compliance action

Maintaining proactive communication and accurate reporting helps avoid these risks.

💬 Need Help?

Your hellotax Account Manager is here to support you.

If you have any questions about your Slovak VAT registration, OSS registration, filings, or data uploads — simply get in touch.

We’re here to help ensure your business remains compliant and confident in Slovakia.