SaaS CAC, LTV & Payback Calculator i Get more information and calculator in the icons.

Just 8 inputs to generate your complete SaaS profitability model.

Period Basis

CAC (Customer Acquisition Cost)i

What CAC means for SaaS/MicroSaaS:
It is the average cost to acquire one new customer.

Formula: CAC = (Marketing spend + Sales spend) / New customers in the period.

In SaaS, track it monthly and compare it with LTV and Payback to validate growth efficiency.

Marketing Spend ($) i

Marketing spend examples (SaaS):

Paid channels: LinkedIn Ads, Google Ads, Meta Ads.

Content and SEO: Freelancers, writers, designers, SEO tools.

Campaigns and brand: Webinars, events, sponsorships, agencies.

Marketing Spend

Sales Spend ($) i

Sales spend examples (SaaS):

People: Employee salaries, commissions, and incentives.

Tools: CRM and sales engagement software.

Enablement and process: Demo tools, sales training, travel for acquisition-focused meetings.

Sales Spend

New Customers Acquired

teste 1

MRR (Monthly Recurring Revenue)

MRR (Monthly Recurring Revenue):

The predictable subscription revenue generated each month from paying customers.

Quick formula: MRR = Number of paying customers x Average monthly ticket.

MRR

Paying Customers Average Monthly Ticket ($) Result (MRR)

Gross Margin (Gross Profit Ratio)i

What Gross Margin means for SaaS/MicroSaaS:
It is the percentage of revenue left after direct delivery costs (Cost of Service).

Formula: Gross Margin = (Revenue - Cost of Service) / Revenue.

Higher gross margin usually means more room to fund product, growth, and operations.

Revenue ($) i

Revenue in the period:

Total gross subscription revenue before deducting any costs, in the same period selected for this analysis.

Example: Montly recurring revenue billed in one month. Setup Fee, Consulting, On-demand services.

Revenue

Cost of Service ($) i

Cost of Service ($):

Direct costs required to deliver the service in the same period.

Examples: Hosting/infrastructure, support delivery, API Usage, Third-party licenses, and third-party delivery fees.

Cost of Service

Using 1 month basis for revenue and Cost of Service.

teste 2

teste 3

LTV (Lifetime Value)i

What LTV means for SaaS/MicroSaaS:
It is the estimated gross profit generated by a customer over their relationship with your product.

Formula with fixed account expansion: LTV = GM x (L / 2) x (2A + (L - 1)E), where L = 1 / Churn.

This is a standard quick estimate in SaaS benchmarking.

If account expansion is 0, it simplifies to the classic model: LTV = (ARPA x Gross Margin) / Churn Rate.

Use ARPA and churn from the same period basis (monthly or yearly).

ARPA ($) i

ARPA (Average Revenue Per Account):

The average revenue generated per customer account in the selected period.

Example: If MRR is $12,000 and you have 100 customers, ARPA is $120/month.

ARPA

Total MRR Active Customers

Gross Margin (%) i

Gross Margin:

The percentage of revenue left after direct service-delivery costs.

Formula: Gross Margin = (Revenue - Cost of Service) / Revenue.

Customer Churn Rate (%) i

Customer Churn Rate (%):

The percentage of customers who stopped being active during the selected period.

Formula: Churn Rate (%) = (Customers Lost in Period / Customers at Start of Period) x 100.

Customer Churn Rate

Customers Lost in Period Active Customers New Customers Acquired Customers at Start

Account Expansion (+$) i

Account Expansion (per period):

Additional recurring revenue gained from existing customers through upgrades, add-ons, seat growth, or plan expansion.

Use this: Model a fixed ARPA increase per period. If you do not want expansion, keep it at 0.

(Optional)

Account Expansion

Current ARPA ($) Target ARPA ($) Number of Periods

Using 1 month basis for ARPA and churn.

Payback (CAC Payback Period)i

What Payback means for SaaS/MicroSaaS:
How long it takes to recover CAC through gross profit per customer.

Formula: Payback = CAC / (ARPA x Gross Margin).

Payback represents the customer-level break-even point (CAC recovery), not company-wide profitability.

CAC ($) per Customer i

CAC per customer:

The average cost to acquire one new customer in the selected period.

Formula: CAC = (Marketing Spend + Sales Spend) / New Customers.

The Payback Period is automatically calculated once CAC, Gross Margin, and LTV are entered.

ARPA ($) i

ARPA (Average Revenue Per Account):

The average revenue generated per customer account in the selected period.

Example: If MRR is $12,000 and you have 100 customers, ARPA is $120/month.

The Payback Period is automatically calculated once CAC, Gross Margin, and LTV are entered.

Gross Margin (%) i

Gross Margin:

The percentage of revenue left after direct service-delivery costs.

Formula: Gross Margin = (Revenue - Cost of Service) / Revenue.

The Payback Period is automatically calculated once CAC, Gross Margin, and LTV are entered.

Using 1 month basis for payback duration.

teste 4

Result: $0.00

Result: 0.00%

Result: $0.00

Result: 0.00 months

Smart Benchmark Layer

LTV / CAC

Pending

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Payback

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Gross Margin

Pending

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