Every three months I'm confronted with this one: I need to declare my VAT for the next quarter to the tax office (larger companies need to do this once per month, maybe Openismus GmbH does this monthly). In Germany needs to be done electronically through the Elster system.
It's very nice and full of features:
- Encryption (state of the art)
- Weak authentication (almost anyone knowing my tax number can submit tax forms for me)
