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Cross-border e-invoicing, Latvia & Lithuania support, and a simpler setup

Apr 23, 2026

Sliptree now sends e-invoices over the Peppol network, so you can send them to customers in other European countries. E-invoicing is also available to companies in Latvia and Lithuania, and the setup has been rebuilt as a guided flow.

Send e-invoices across borders via Peppol

Until now, e-invoicing in Sliptree was Estonia-only: both ends of the invoice had to be on the Estonian network. Sliptree now sends Peppol BIS 3.0 compliant UBL invoices, which means an Estonian company can send an e-invoice to a customer in Latvia, Lithuania, Finland, or any other country on the Peppol network. The UI shows which network each invoice was delivered through (Estonian or Peppol), so you always know how it went out.

E-invoicing for Latvia and Lithuania

Latvian and Lithuanian companies can now send e-invoices directly from Sliptree, the same way Estonian companies already do. This includes country-specific prerequisites — for example, Latvia requires a VAT ID — and a representation rights check against the Latvian VISS registry, so we know the person setting it up actually has authority to do so on behalf of the company.

A streamlined e-invoicing setup

We've significantly streamlined the e-invoicing setup. It's now a step-by-step guided flow that walks you through identity verification, representation rights, prerequisites, and activation — only showing what's relevant for your company's country. If something's missing, you'll see exactly what and why. If automated checks aren't available in your country, you can self-attest to your representation rights and continue.

Better visibility into delivery

When delivery status data is available, e-invoice delivery and bounce events now show up in the invoice activity log — so you can see at a glance whether an e-invoice actually reached the recipient.