If your company does not pay VAT's, then go to Account Settings - Company Setiings - Invoice settings - and check the "exempt without credit cf. art. 310 of the tax code" option.
Set VAT to 0% on all existing products
After you check Exempt without deduction right under Account Settings → Company Settings → Invoice settings, every product in the Nomenclator must have its VAT rate set to 0%. Otherwise, when saving you'll see the message „VAT rates not set", and the products cannot be sold.
The fastest way to do this for multiple products at once is Bulk editing:
Go to Nomenclator → Products.
Select all products you want to update (or check „Select all" for the entire list).
Click Bulk editing at the top of the page.
Choose Change VAT.
Pick the new VAT rate (0%) and save.
All selected products will now have VAT set to 0%, and the warning will disappear.
Important: this step also applies to Service-type products — they too carry VAT in the system, so include them in your selection.
If you import invoices from SPV and want them imported with 0% VAT, check in Account Settings → Company Settings that the "Non-VAT Payer" option is enabled. This way, invoices will be imported with 0% VAT, and the total will be calculated based on the VAT-exclusive value.
[tags: vat payment, nonpayment vat company]

