According to the standard we use in Sweden when it comes to electronic invoices (Svefaktura) there is no direct support for invoices that are specified including VAT. That includes all invoices where the VAT is already included on the invoice lines. Depending on what your invoice templates look like we can convert these invoices for you, so that they are delivered to the recipient specified excluding VAT. Please contact us to discuss your options.
You can read more about this standard on SFTI's website.