All commercial business operations are liable to trade tax. Although trade tax is regulated by federal law, it is a municipal tax with rates varying at the municipal level.
Irrespective of their legal form, all commercial business operations in Germany are liable to trade tax (Gewerbesteuer).
As a rule, the trade tax rate tends to be higher in urban locations than in rural areas. The solidarity surcharge is not levied on trade tax.
The taxable income of the company is multiplied with the tax base rate (3.5 percent) which results in the so-called tax base amount. The tax base amount is then multiplied with the corresponding municipal multiplier, which results in the sum total of trade tax which is due.
The multiplier is set by each municipality. On average, it is around 400 percent but may not total less than 200 percent. There is no upper limit for the municipal multiplier.