Financial Glossary
SaaS (software as a service)
Software as a Service (SaaS) is a software delivery and licensing model in which applications are hosted by a provider and accessed by customers over the internet, typically via a web browser, on a subscription basis. Customers pay a recurring fee (monthly or annually) rather than a one-time license, and the provider handles all infrastructure, maintenance, security patching, and updates. SaaS revenue is recognized ratably over the subscription term under ASC 606. Key financial metrics specific to the model include monthly recurring revenue (MRR), annual recurring revenue (ARR), churn rate, net dollar retention, customer acquisition cost (CAC), and lifetime value (LTV). The model generates predictable, compounding revenue but requires sustained investment in retention and product to maintain it.
Problem & Application
A property management SaaS serving short-term rental operators charges $150 per month per property on a monthly subscription. A customer managing 10 properties pays $1,500 per month, contributing $18,000 to ARR. If the company has 200 such customers with an average of 8 properties, ARR = 200 x 8 x $150 x 12 = $2.88M. Gross margin typically runs 70-80% for SaaS after hosting and support costs, giving roughly $2M in gross profit to fund sales, marketing, and R&D. The CFO's job is to determine how aggressively to spend on new customer acquisition given the LTV-to-CAC ratio: if a customer stays 4 years on average (LTV = $72,000 for a 10-property customer at 70% gross margin = ~$50,000) and costs $3,000 to acquire, the ratio is 16x -- well above the 3x threshold that indicates healthy unit economics. Parikh Financial advisors help SaaS founders build these models and use them in board and investor conversations.
In Short
SaaS provides flexibility and cost savings for businesses, but companies must focus on innovation and customer experience to maintain competitiveness.