Your SaaS company just closed a $50,000 annual contract. That revenue shouldn't hit your P&L today. It should recognize over 12 months. Your investors want MRR, not lump-sum cash. Your CPA needs accrual books. Your team needs cash visibility. This is SaaS accounting complexity. Puzzle.io is different, built AI-native with SaaS operations in mind. This complete guide covers everything SaaS founders need to know.