Profitable German small businesses still run short of cash, usually because a tax prepayment, a late client payment, and a VAT bill land in the same month. A good cash flow forecasting tool for a Kleinunternehmen in Germany shows that squeeze weeks ahead. This guide covers the German dates and rules your forecast needs, then the tools that help. “Kleinunternehmen” here means any small business. For the VAT exemption, see our Kleinunternehmerregelung guide . A note on “AI”: I couldn’t verify AI features beyond automatic bank syncing and rule-based forecasting in any tool below. Treat “AI-powered” claims as marketing until you’ve tested them. Subtopic: the German dates and rules your forecast must include Most forecasting tools pull in bank data and open invoices. They won’t know your tax calendar unless you add it. Sources, including Saxony’s official tax calendar, agree on these 2026 dates: Item Due dates Notes Income tax prepaym...
Health insurance is mandatory for the self-employed in Germany, and the choice you make can last decades. A good Krankenversicherung Selbstständige comparison tool saves hours, but it can’t make the real decision for you. This guide covers what a tool can and can’t do, the 2026 numbers that drive public-insurance (GKV) costs, and the main comparison tools. For related topics, see our guides to deductible expenses for the self-employed and Freiberufler vs Gewerbe . A note on “AI”: the tools below are mostly rate calculators and comparison portals, not AI advisors. I flag where they claim more. Subtopic: GKV or PKV, what no comparison tool can decide Self-employed people can choose public (GKV) or private (PKV) cover regardless of income, because they aren’t subject to compulsory GKV membership. The sources I checked agree on the trade-offs: GKV: contributions follow your income, with a floor and a ceiling. You pay the whole contribution yourself, with no employer share. PKV: bene...