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SaaS Financial Model Calculator
Model your subscription business end-to-end. Adjust pricing, churn, marketing spend and growth levers — see MRR, ARR, LTV/CAC, payback period and 12-month projections update in real time.
MRR / ARR ForecastLTV / CAC RatioChurn ModelingK-Factor ViralityPayback Period12-Month ProjectionsTax Regime ScenariosBreak-even & ROI
What this SaaS calculator covers
- Monthly Recurring Revenue (MRR) and Annual Recurring Revenue (ARR) forecast
- Customer Lifetime Value (LTV) and LTV/CAC ratio
- Customer Acquisition Cost (CAC) and payback period
- Monthly churn impact on paying users
- K-factor viral growth coefficient
- Marketing budget scenarios: fixed, % of MRR, or manual per month
- Tax regime modeling (Revenue 6%, Profit 15%, Self-employed, Patent, None)
- Break-even analysis and yearly ROI
- Expense breakdown: server, variable, payment commission, fixed costs
Who this is for
Indie hackers, SaaS founders, and product teams who want a fast, free financial model without complex spreadsheets. Adjust sliders and see your projections update in real time.
SaaS Financial Model
Product
Subscription Price
29$/moInitial Users
1000Conversion Rate
10%Growth & Retention
Base Organic
100/moReferrals per Paying
0.2/moOrganic mo 1: 100 + 20 ref. = 120 users
Paying Churn
3%Free Churn
5%Marketing
CAC
50$Budget Type
% of Revenue
20%Budget mo 1: $580 → +11 users → +1 paid
Expenses
Server
100$/moPer Paying User
1$/moPer Free User
0.1$/moPayment Commission
3%Apple Developer
99$/yrDomain
15$/yrOther Fixed
0$/moInvestment & Tax
Initial Investment
5000$Tax Regime
SaaS Financial Model
Profit
1,760
LTV/CAC
19.3x
K-fac
0.67
ROI
686%
Overview
MRR: $2,900↑ $1,760/mo