Project your SaaS revenue by modeling up to 3 pricing tiers with customer counts, churn, and growth rates. See your current MRR/ARR, customer LTV, and a 12-month projection table showing how your revenue will grow or decline based on churn and acquisition rates.
SaaS revenue modeling combines pricing tier mix, customer counts, churn, and growth into a forward-looking revenue projection. Unlike traditional businesses where revenue is largely transactional and unpredictable, SaaS revenue is recurring and projectable — making mathematical modeling much more valuable. A well-built revenue model lets you ask: "If we maintain current growth and churn, where will we be in 12 months? What if we improve retention by 1 percentage point? What if our growth doubles?"
Multi-tier pricing is the modern SaaS standard. Most successful SaaS products offer 2-4 tiers (often called "Starter," "Professional," "Enterprise") differentiating on features, usage limits, or support level. Mix shifts within tiers profoundly affect revenue — moving customers from $29 to $79 tier produces same absolute price increase as adding new $50 customers, but much higher LTV (because moved customers already exhibit retention). Companies that successfully upsell across tiers achieve "negative churn" or NRR > 100% — existing customer base grows revenue without new acquisitions.
This calculator models current MRR/ARR from your three tiers, plus projects 12-month growth based on your customer count, churn, and acquisition rates. Use it for: revenue forecasting and goal-setting, evaluating pricing changes (tier additions, price increases), analyzing churn improvement impact, board reporting and investor presentations, and understanding compounding mechanics of subscription businesses. Important context: this calculator uses simple uniform growth/churn assumptions. Real SaaS dynamics involve cohort effects (new customers have different retention than mature customers), seasonal patterns, and acquisition channel variations. For sophisticated modeling, use cohort-based revenue models. But for high-level planning and quick scenarios, simple models like this provide directionally accurate guidance.
Bootstrap SaaS: 100 customers at $29 (basic), 50 at $79 (pro), 10 at $199 (enterprise). 5% monthly churn, 10% monthly growth. Current MRR: $8,840 ARR: $106,080 ARPU: $55 LTV (5% churn): $1,105 12-month projection (5% net monthly growth): Month 3: ~$10,230 MRR ($122K ARR) Month 6: ~$11,840 MRR ($142K ARR) Month 12: ~$15,872 MRR ($190K ARR) 80% MRR growth in 12 months at current trajectory. Solid early-stage scaling pattern. Improvement opportunity: reduce churn from 5% to 3% (better onboarding, customer success). Net growth becomes 7% instead of 5%. Month 12 with 3% churn: $19,914 MRR (vs. $15,872) — 26% better. Compound effect of churn improvement is dramatic over time. Customer success investment often higher ROI than acquisition spending.
Series A B2B SaaS: 200 customers at $99, 80 at $299, 20 at $999. 2% monthly churn, 8% monthly growth. Current MRR: Tier 1: $19,800 Tier 2: $23,920 Tier 3: $19,980 Total: $63,700 ARR: $764,400 ARPU: $212 LTV (2% churn): $10,610 12-month projection (6% net monthly growth): Month 12: 300 customers × similar mix = ~$127K MRR ($1.5M ARR) Doubling ARR over 12 months. Strong B2B SaaS trajectory. Tier 3 ($999) customers generate ~31% of MRR despite being 6% of customers — important to nurture and retain these. Aimed at Series B fundraise typically: $5-10M ARR target. From current trajectory, that's 18-24 months out. Plan fundraise accordingly.
Established SaaS: 2,000 Tier 1 ($49), 500 Tier 2 ($199), 100 Tier 3 ($999). 1.5% monthly churn, 4% monthly growth. Current MRR: Tier 1: $98,000 Tier 2: $99,500 Tier 3: $99,900 Total: $297,400 ARR: $3,568,800 ARPU: $114 LTV (1.5% churn): $7,600 12-month projection (2.5% net monthly growth): Month 12: ~$397K MRR ($4.77M ARR) 34% annual growth. Mature SaaS pattern — strong but slowing growth rate. Strategic options to accelerate: 1. Tier 4 launch at $2,499 (enterprise plus) — capture top of market 2. Upsell campaign moving Tier 1 to Tier 2 — even 5% mix shift adds $30K MRR 3. Add-on modules — increase ARPU without tier moves 4. Annual prepay incentives — reduce churn and improve cash flow Combined, these could push monthly growth from 4% to 6-7% and accelerate trajectory significantly.
Use this calculator for SaaS revenue forecasting, evaluating pricing changes, analyzing churn improvement impact, board reporting and investor presentations, or understanding the compounding mechanics of subscription businesses.
Pair with saas-metrics (comprehensive SaaS dashboard), churn-rate (retention focus), cac-calculator (unit economics), and burn-rate (cash management).
Important SaaS revenue considerations:
1. **Recurring revenue compounds.** Small monthly growth produces dramatic annual changes. 5% monthly = 80% annual. 7% monthly = 125% annual. Compounds matter.
2. **Churn impact is non-linear.** Reducing churn from 5% to 3% extends customer lifespan from 20 months to 33 months — 65% LTV increase. Reducing 3% to 1% extends 33 to 100 months — 200% LTV increase.
3. **Tier mix shifts have huge impact.** Moving 10% of customers from Tier 1 to Tier 2 ($29 → $79) adds $50 × 10% × customers monthly. For 100 Tier 1 customers, that's $500 MRR addition — bigger than acquiring 10 new Tier 1 customers.
4. **Higher tiers should drive disproportionate revenue.** Well-priced SaaS: Tier 1 has most customers (drives onboarding); Tier 2 has most revenue (drives business); Tier 3 has best LTV per customer (drives growth).
5. **Annual prepay improves cash flow.** Many SaaS offer 15-20% discount for annual prepay. Trades small revenue reduction for major cash flow improvement (receive year of revenue upfront).
6. **Negative churn / NRR > 100% changes everything.** When existing customer base grows MRR without new acquisitions (through upsells, plan upgrades, usage growth), economics transform. Public SaaS leaders target 110-130% NRR.
7. **Cohort retention varies.** New customers churn faster than mature customers. Blended churn hides this — cohort analysis reveals real patterns. Many SaaS see 20-30% first-month churn dropping to 1-2% monthly by month 6.
8. **Acquisition channels affect quality.** Customers from different channels (paid ads, content, partnerships, referrals) have different retention rates. Track channel-level cohorts.
9. **Pricing changes affect existing customers and new.** Grandfathering existing customers when raising prices preserves NPS but limits revenue. Raising for all customers maximizes revenue but creates churn risk.
10. **Free trials affect conversion math.** Free trial CAC includes time/resources for trial conversion. Strict tracking: actual customers acquired / total spend on trial program.
11. **Seasonality affects monthly growth.** SaaS typically sees Q1 surge (budget reset), summer slowdown, Q4 push. Annual rates more reliable than monthly.
12. **Rule of 40 importance.** Growth rate + profit margin should exceed 40 for healthy SaaS. Allows tradeoff: 50% growth with -10% margin = 40 acceptable; 20% growth with 30% margin = 50 also acceptable. Modern fundraising heavily weights this metric.
Calculate startup burn rate and cash runway.
Find how many units you need to sell to cover your costs.
Calculate key SaaS metrics: MRR, ARR, LTV, and CAC ratio.
Calculate gross, operating, and net profit margins from your revenue and costs.
Project your business cash flow, burn rate, and runway over time.
Estimate total startup costs and identify your funding gap.
Percentage of customers lost each month
Percentage of new customers added each month
Current MRR
$8,840.00
Current ARR
$106,080.00
Total Customers
160
ARPU
$55.25
Customer LTV
$1,105.00
Projected ARR (12 mo)
$192,933.00
| Month | Customers | New | Churned | MRR | ARR |
|---|---|---|---|---|---|
| 0 | 160 | 0 | 0 | $8,840.00 | $106,080.00 |
| 1 | 168 | 16 | 8 | $9,282.00 | $111,384.00 |
| 2 | 177 | 17 | 8 | $9,779.25 | $117,351.00 |
| 3 | 186 | 18 | 9 | $10,276.50 | $123,318.00 |
| 4 | 196 | 19 | 9 | $10,829.00 | $129,948.00 |
| 5 | 206 | 20 | 10 | $11,381.50 | $136,578.00 |
| 6 | 217 | 21 | 10 | $11,989.25 | $143,871.00 |
| 7 | 228 | 22 | 11 | $12,597.00 | $151,164.00 |
| 8 | 240 | 23 | 11 | $13,260.00 | $159,120.00 |
| 9 | 252 | 24 | 12 | $13,923.00 | $167,076.00 |
| 10 | 264 | 25 | 13 | $14,586.00 | $175,032.00 |
| 11 | 277 | 26 | 13 | $15,304.25 | $183,651.00 |