Recurring Service Revenue Calculator
Project the 24-month revenue from your recurring service plans, including churn and growth.
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If you sell maintenance plans, weekly cleanings, lawn care contracts, or any recurring service, you're sitting on a subscription business and most owners undervalue it badly. This calculator runs the compounding math: starting customers, monthly fee, churn rate, growth rate, projected over 12 and 24 months. Plus per-customer LTV so you know what you can spend to acquire one.
Quick startPick your industry to load real-world numbers
Your inputs
Edit any field, results update automatically.
Active customers on a monthly/quarterly/seasonal plan today.
If quarterly, divide by 3. If seasonal (lawn), use annual / 12.
Of current clients, what % cancel each month? Service businesses typically see 1-5%/month.
Net new sign-ups. If you currently sign 5/month and lose 2 to churn, this is 5 (not 3).
Marketing + sales effort divided by new clients. Service businesses typically $50-300.
Revenue minus direct cost (labor + materials) per visit. Recurring services typically 30-50%.
Your results
MRR in 24 months
$14,521
Monthly recurring revenue at your current growth + churn pace
Run recurring billing on autopilot
Smarfle's Client Subscriptions + Recurring Work Orders auto-generate WOs on schedule, auto-bill via Stripe, and surface MRR/churn dashboards. Built for HVAC plans, weekly cleaning, lawn contracts, pest routes.
Free for 14 days, no credit card
How this calculation works
Recurring revenue compounds. The math: LTV (lifetime value) per customer = monthly fee / monthly churn rate. So a customer paying $95/month with 2.5% monthly churn has an LTV of $3,800 in revenue (about 40 months of expected tenure). At 40% gross margin, that's $1,520 in lifetime gross profit per customer. LTV/CAC ratio is the make-or-break metric for subscription services. Healthy: >3x. Below 1x = you're losing money on every acquisition. The default $120 CAC with $1,520 LTV profit = 12.7x ratio (excellent). The 24-month projection simulates each month: current customers, minus churn, plus new sign-ups, times monthly fee. Compounded across 24 months, even modest growth (6 new clients/month) becomes meaningful: 80 starting clients with 6 new/month at 2.5% churn ends at ~210 clients ($20K MRR) in 24 months. Most owners track only current MRR. The compounding view shows that the next 24 months of subscription revenue is often 10-20x the current monthly number.
Real scenarios
Find the persona closest to yours, then click to load those numbers into the calculator.
HVAC owner with 100 maintenance plans
$15/mo plan, 1.5% churn, 8 new sign-ups/month.
Current MRR $1,500. In 24 months: ~280 customers, ~$4,200 MRR. LTV per customer: $1,000. Plan revenue alone funds an additional tech.
Weekly residential cleaning
$440/month per client, ~3% monthly churn.
LTV per customer: $14,667 in revenue. CAC of $180 = 80x LTV/CAC. The unit economics are world-class, scaling is the only question.
Pest control with quarterly visits
200 customers, low churn, simple route economics.
Current ARR $96K. In 24 months: ~510 customers, $245K ARR. Pest control consistently has the strongest LTV/CAC in field service.
Smarfle CRM
Run this in your business, not just in a calculator
These Smarfle features close the loop on what this tool surfaces. Built for local service businesses, used by HVAC, plumbing, electrical, cleaning, lawn care, and 40+ other trades.
Client Subscriptions
Stripe-integrated recurring billing on each client. Auto-charge cards monthly, surface churn, manage upgrades/downgrades.
Learn moreRecurring Work Orders
Auto-generate WOs on schedule (weekly, biweekly, monthly, quarterly). Tied to subscriptions so billing happens on completion.
Learn moreMaintenance Reminders
Auto-text + email reminders before each scheduled visit. Reduces no-shows and surfaces churn early.
Learn moreFrequently asked questions
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