OpenTax by Invaro vs Taxfix

OpenTax by Invaro plans

• EvaluationFree

Taxfix plans

• Basic — individual annual€39.99 a year
• Basic — individual one-time€49.99, paid once
• Basic — joint annual€59.99 a year
• Basic — joint one-time€69.99, paid once
• StartFree
• Expert Service€20, paid once

Pick OpenTax by Invaro if…

OpenTax may suit tax and accounting firms, freelancers with S-corp clients, advisory engagements, and financial planners seeking computation beneath AI workflows. It also fits developers looking for hosted or self-hosted interfaces to tax computations.

Pick Taxfix if…

Taxfix suits individuals and couples who want to prepare a German tax return themselves or have an independent tax adviser prepare it. Its VAT service is aimed at VAT-liable freelancers and businesses with a main residence in Germany, not corporations.