Debt interest is tax deductible if there is a connection with a certain type of income. A classic here are loans for the financing of rented real estate, because here the incurred interest is deductible as advertising costs (§ 9 paragraph 1 EStG). In the case of debt interest – regardless of whether it is incurred in the company or private assets – but always the so-called financing context should be considered. There must therefore be a certain economic link between taking out the loan and generating income.

1st principle of the financing context

Interest on debt can only be deducted as operating expenses or advertising costs if it has a certain economic connection with the respective income (e.g. from commercial operations or rental and lease). The entrepreneur or investor must therefore for example