Hobby vs. Business Checker

Liebhaberei is one of the nastiest terms in German tax law. If the tax office decides you run your activity without genuine profit intent, it stops recognizing your losses - retroactively, often over years. The classics are horse keeping, photography, the sailing boat or small-scale wine growing, but it hits any activity that writes red numbers for a long time.

The hobby-vs-business checker makes the risk tangible before the auditor knocks. You enter your results from recent years - profits and losses - and answer a few questions about your business plan, market presence, corrective measures and the nature of your activity. From that the tool computes a risk score showing where you stand between harmless and endangered.

The heart of the test is profit intent under Section 15(2) of the Income Tax Act and the question of total profit over the entire duration of the activity. A single loss year is harmless, a start-up phase too - it gets critical when no positive total profit is in sight over a long period and you simply carry on without steering against it.

This is exactly where the Federal Fiscal Court case law counts, and the checker builds it in. It is not just about numbers but about your behaviour: do you react to losses? Is there a viable business plan? Do you appear on the market like someone who wants to earn money? Or are personal inclination and leisure character so close that the losses are hobby rather than business? The checklist ticks off these criteria in turn.

The multi-year comparison presents your results as a trajectory and makes visible whether a total profit is emerging or whether the losses are structural. That is precisely the perspective the tax office takes too - not the single year but the overall picture.

Important and honest: this is a risk assessment, not a binding ruling and not tax advice. The checker does not tell you how the tax office will decide but where you sit on the scale and which levers you can pull - for example with a clean business plan or documented corrective measures that evidence profit intent.

Everything runs in your browser; your figures never leave your device. No signup, no uploaded tax secret. If the score slips into the red, that is a signal to tackle the topic seriously with a tax advisor - not only once the audit is already underway.