Connect your KSeF certificate

To send invoices to the National e-Invoicing System (KSeF) and receive invoices from it, Fiskora needs a KSeF certificate. Generate the certificate in the official KSeF taxpayer application (Aplikacja Podatnika KSeF). Then upload it to Fiskora. Fiskora stores it encrypted.

Before you start

Two-factor authentication is on in Fiskora. Fiskora requires this before you connect a certificate.
You have a KSeF authentication certificate: a key file and its password. If you do not have one, read the guide “How to get a KSeF certificate”.
The certificate is for the correct environment. A test certificate does not work for real invoices.

Steps

Sign in to Fiskora.
Open Settings, then KSeF.
Choose to add a certificate.
Select the certificate file that you saved from the KSeF app.
Enter the certificate password.
Confirm. Fiskora can ask for your authenticator code.
Make sure that the connection shows as working.

Screens can be a little different from this description. Fiskora and the KSeF app change over time.

After connecting

Now you can send invoices to KSeF. Fiskora can fetch your purchase invoices. See “Issue your first invoice” and “Received invoices”.

Keeping it safe

Do not share the file or the password with anyone.
Delete extra copies, for example the copy in your Downloads folder, after you store the file safely.
Make a note of the expiry date of the certificate. When it expires, generate a new one in the KSeF app. Upload it in the same place.
If you think someone saw the certificate, revoke it in the KSeF app. Then connect a new one.

Troubleshooting

Wrong password. Enter it again exactly. If you lost it, generate a new certificate.
Certificate not accepted. Make sure it is an authentication certificate. Make sure it matches the environment and the NIP of the company.
You cannot find the upload option. Make sure that two-factor authentication is on.
Still stuck. Write to support@fiskora.com. Never send your key file or password by email. We reply within 2 working days.