🔒 Stored only in this browser (localStorage). Nothing is uploaded anywhere — which also means nothing is backed up automatically. Export to CSV regularly, especially before clearing browser data or switching devices. This tool is not tax advice; for your actual Einkommensteuererklärung, confirm figures with a Steuerberater.
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Income
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Expenses
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Surplus
Veranlagungsfreibetrag progress (€730/year)0%
Side income (net surplus) above €730/year generally must be declared in your Einkommensteuererklärung (E1/E1a). Below that, it's typically tax-free under the Veranlagungsfreibetrag — but always confirm with a tax advisor, as other income can affect this.