Proposal Air Documentation
Comprehensive guide for professional proposal creation in Germany. Legal requirements, pricing, taxes, electronic signatures, GDPR, and conversion optimization.
Welcome to the Proposal Air documentation – your AI-powered solution for professional proposal creation.
This guide is designed for freelancers, consultants, and small businesses in Germany who want to take their proposals to the next level. Here you'll find practical information on legal requirements, pricing, taxes, electronic signatures, data protection, and conversion optimization – all up to date for 2025.
What You'll Find Here
Getting Started
Learn the basics of Proposal Air and create your first professional proposal in minutes.
Best Practices for Proposals
Discover which mandatory details belong in a professional proposal, how to structure it optimally, and when to use a cost estimate instead.
Pricing for Freelancers
Current hourly rates for 2024/2025, formulas for calculating your rate, and the decision between hourly and fixed prices.
Taxes and Legal
Everything about the small business regulation (including the new thresholds from 2025), correct VAT display, and reverse-charge for EU clients.
Billing & Invoicing
Create professional invoices from accepted proposals, send them electronically as PDF or ZUGFeRD e-invoices, and manage your complete invoice history with status tracking and GoBD-compliant audit trail.
Electronic Signatures
The three signature levels according to eIDAS, when which signature is sufficient, and why canvas signatures are legally valid for most freelance contracts.
GDPR for Proposals
Which customer data you may store, retention periods, and the appropriate legal bases for your data processing.
Conversion Optimization
Statistics on acceptance rates, psychological persuasion techniques like 3-tier pricing, and follow-up best practices for more orders.
Quick Start
New to Proposal Air? Start with the Getting Started guide to learn the key features.
Already a user? Jump directly to the topic that interests you:
- Proposal Best Practices
- Pricing
- Taxes & Legal
- Billing & Invoicing
- Electronic Signatures
- GDPR
- Conversion Tips
As of: January 2025. This documentation does not replace individual legal or tax advice.