What is the tax difference between a Freiberufler and a Gewerbetreibender in Germany?

In Germany, self-employed people fall into two categories with significantly different tax obligations:

Freiberufler (liberal professions) include doctors, lawyers, architects, engineers, tax advisers, artists, writers, and similar professionals. They pay Einkommensteuer on their profits and may be subject to Umsatzsteuer, but they are exempt from Gewerbesteuer (trade tax). They file an income statement (Einnahmenüberschussrechnung / EÜR) and do not need to register a trade.

Gewerbetreibende (tradespeople, merchants, business operators) run commercial businesses and must register at the Gewerbeamt (trade office). In addition to Einkommensteuer and Umsatzsteuer, they pay Gewerbesteuer, which is a local business tax levied by the municipality. The effective Gewerbesteuer rate varies by municipality but typically ranges from 7% to 17% of taxable business income. For sole traders and partnerships, there is a Gewerbesteuer exemption (Freibetrag) of €24,500 per year, so smaller Gewerbetreibende pay little or no Gewerbesteuer. Gewerbetreibende can offset Gewerbesteuer paid against their personal income tax liability.

The classification is not always obvious. The Finanzamt may challenge whether an activity qualifies as a liberal profession or a trade. Mixed activities can result in the entire income being classified as a trade.