IT developers

The Tax Administration offers developers a number of technical interfaces for electronic filing of tax returns and notices. This page contains interface descriptions, specific instructions for different e-services and invitations to events and shared sessions for software developers.

The Tax Administration’s certificate service

Certificate service is an e-service in which you can manage your organisation’s API rights and certificates.

Certificate service

e-Filing guidance

Users can submit a number of tax returns, reports and notices electronically, including income tax returns, self-assessed tax returns, and annual information returns.

e-Filing guidance

ApitamoPKI -interface service

ApitamoPKI is an interface that allows the electonic filing of most returns and reports requested by the Tax Administration.

ApitamoPKI

Interfaces of Vero API

Vero API is an integration service for real time interactions with Finnish Tax Administration.

Vero API

Data format specifications

We have created a data format specification for each type of return or notification that you submit to the Tax Administration.

Data format specifications

Software development cooperation

Stakeholder cooperation means open communication with software developers.

Software development cooperation

Interfaces of Vero API

Vero API is an integration service for real time interactions with Finnish Tax Administration.

Vero API

Data format specifications

We have created a data format specification for each type of return or notification that you submit to the Tax Administration.

Data format specifications

Software development cooperation

Stakeholder cooperation means open communication with software developers.

Software development cooperation

We also offer a special newsletter for software developers (in finnish). This is a way to keep yourself informed of latest news, upcoming changes and various revisions or changes concerning the Tax Administration’s services.

You can sign up for our newsletter to either your company’s e-mail address or your private e-mail. No fees are charged.

If you no longer wish to receive newsletters, you can click the Subscribe button any time to cancel the newsletter, or alternatively click the link on the newsletter’s last page.

Subscribe to the newsletter

News

1/30/2025 News for software developers - 1/2025
9/24/2024 News for software developers – 4/2024
6/4/2024 News for software developers – 3/2024
3/27/2024 News for software developers – 2/2024
2/8/2024 News for software developers – 1/2024

Olet jo vastannut kyselyyn "Palautekysely verkkosivuilla", kiitos vastauksestasi!

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Page last updated 11/7/2023

IT developers

The Tax Administration’s certificate service

e-Filing guidance

ApitamoPKI -interface service

Interfaces of Vero API

Data format specifications

Software development cooperation

Interfaces of Vero API

Data format specifications

Software development cooperation

Newsletter

News

Give up paper letters

Detailed guidance

About us