Serbian Qualified Electronic Signature for Foreign Company Owners

What the certificate actually signs

The certificate comes up long before a foreign founder has arrived in the country, because the filings that create and maintain a Serbian company are electronic.

These are the points where our own guides state the requirement outright.

• Company registration. The application is filed with APR electronically only and signed with a qualified electronic certificate. There is no paper route, and filing it yourself also means a card reader, the NEXU application and a payment card for the fee.
• The beneficial-owner entry. It goes exclusively online through the APR portal, signed by the company's representative, with the supporting documents uploaded, within 30 days of the basis arising. The deadlines and the penalties are set out in our guide.
• The annual financial report. Filed with APR by 31 March for the previous business year, online only, signed with a qualified electronic signature.
• E-invoicing. Access to SEF needs an eID.gov.rs account plus a qualified electronic certificate, and a plain password will not get you in. What SEF requires, and when.

Who holds it, and what you can hand over

The beneficial-owner entry is signed by the company's registered representative, and roles inside SEF are assigned by the legal representative or administrator. For a founder who is not yet living in Serbia that is a practical question rather than a technical one, because it decides whether the company can keep filing while you are abroad.

You do not need one to get the company registered. We file the APR application under your power of attorney, which puts the certificate, the card reader, the NEXU application and the payment card on our side instead of yours. Once the company exists, the recurring filings run through us as well, including the returns that go to the Tax Administration through the ePorezi portal.

What does not travel quite so easily is your company's SEF account. Roles there, issuing invoices, accepting or rejecting them, recording VAT, are assigned by the legal representative or administrator, and access to SEF needs the eID account together with the certificate. Somebody therefore has to be able to log in. Decide who that is before the first invoice arrives, not after one has sat unanswered and been rejected automatically.

The physical KES step in our workflow

We do not offer cloud KES. A foreign founder comes to Serbia for in-person identity verification and physical KES/QES issuance. We coordinate the timing, while the issuing body controls the procedure and bills its own fee.

Before travel, confirm the exact document list and appointment with the selected issuing body so the KES step can be combined with bank identification.

• The appointment location and available dates for in-person identification.
• Which identity documents they accept from a non-resident, and whether a Serbian personal or foreigner identification number is a precondition.
• Whether a qualified signature issued in another country is accepted by the Serbian state portals.
• Whether logging in to the tax portal ePorezi needs the same certificate. Our guides state that returns are filed through ePorezi, but not what the login itself requires.

If a step needs you in Serbia

Plan the in-person steps together rather than one flight at a time. Serbia's official guidance on temporary residence states that once the conditions for issuing the permit are met, the applicant must appear in person so that biometric data can be collected. If the certification body also wants you present, those trips are worth lining up in one visit. That is trip planning, not a rule, so confirm each step with the authority or the body that runs it.