One-Click Portal Login

You can register here for the Addison OneClick Client Portal using the link below.

Client Login Area

What is Addison OneClick?

Addison OneClick is the building block for better collaboration between client and tax consultant. Whether only using the exchange of documents with the tax consultant or the detailed insight into current evaluations. With individual apps, the Addison OneClick features can be tailored to your needs.

For an overview of the OneClick apps, simply look at our Online Solutions.

OneClick for On the Move - Mobile Reports

If you already have an Addison OneClick login and have been given access by us for Mobile Reports, download the free app to access your current reports on your smartphone or tablet.