What is mainaro used for?

mainaro is a German-language platform for property owners in Germany that shows cash flow after tax, location scores, financing risks and exit simulations for each property. It is a good fit for landlords checking what a rental really yields after tax and owners preparing for a fixed-interest period to end.

Is mainaro open source?

No. mainaro is proprietary (closed-source) software and can't be self-hosted. In the Finance & Accounting category, open-source options include Money Manager Ex, Actual Budget and Firefly III.

What are some alternatives to mainaro?

Other SaaS products in the Finance & Accounting category include DATEV, Nebenkosten Butler and Rentably.

mainaro: features, pricing and alternatives

About mainaro

Mainaro is a platform for people who own rental property in Germany. Its homepage is in German and argues that owners know their rent but not their profit after tax: it accounts for interest, repayment, depreciation (AfA) and tax per property to show what is actually left each month, and it watches deadlines and cash flow so costly oversights are caught early.

The product pages describe a property cockpit that replaces spreadsheets with a traffic light and one plain sentence per property, covering cash flow, tax and financing. Listed as live are after-tax cash flow, AI-assisted document capture, a location score per property, a debt service coverage (DSCR) stress test and an exit simulation. Anlage V export, smart alerts and a DATEV or B2B interface are marked as coming. Calculations draw on official sources including BORIS, BBSR and Destatis, and the AI only writes the wording while a calculation engine does the math.

It also offers a free location analysis that covers every German municipality and all 16 federal states, with alerts planned for expiring fixed-interest periods and for the holding period that applies before a property can be sold tax-free. The site states that it is not tax advice or investment advice, and that documents are read by AI only after consent.

Key features

After-tax cash flow per property
Location analysis for German municipalities
DSCR stress test for financing
Exit simulation for selling a property
AI-assisted document capture with consent
Property cockpit with a traffic-light verdict

Good fit for

Landlords checking what a rental really yields after tax
Owners preparing for a fixed-interest period to end

Tags: real-estate; germany; property-management; cash-flow; tax; financing; location-analysis

mainaro: questions and answers

What is mainaro used for?: mainaro is a German-language platform for property owners in Germany that shows cash flow after tax, location scores, financing risks and exit simulations for each property. It is a good fit for landlords checking what a rental really yields after tax and owners preparing for a fixed-interest period to end.
Is mainaro free?: Yes. mainaro has a free plan.
Is mainaro open source?: No. mainaro is proprietary (closed-source) software and can't be self-hosted. In the Finance & Accounting category, open-source options include Money Manager Ex, Actual Budget and Firefly III.
What are some alternatives to mainaro?: Other SaaS products in the Finance & Accounting category include DATEV, Nebenkosten Butler and Rentably.