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SaaS Forecasting Tool

Financial model template for a SaaS or subscription business for consumer, SMB, midmarket, or Enterprise SaaS.

4.9(68)9,260 downloads

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$20 suggested, but "0" is ok. All donations appreciated.

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Download to Excel or Copy to Google Sheets
Easy to customize with your AI
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Highlights

Forecast a SaaS, subscription, or services business for consumer, SMB, midmarket, or enterprise-style companies. Supports two modes: aggregate forecasting from growth and churn assumptions, or pipeline-based forecasting where you list specific deals with size, contract length, billing cycle, close probability, start date, and expansion.

Outputs a full set of SaaS metrics (MRR, ARR, LTV) and revenue accounting (bookings, billings, revenue, deferred revenue). Intentionally simplified: no expenses, no net income.

For financial statements and full reporting, use the Standard Financial Model.

What you'll do with it

Forecast a SaaS, subscription, or services business. Two modes:

  • Aggregate. Inputs for growth rate, conversion, churn, contract length, billing cycle, revenue per subscriber. Best for consumer, SMB, or midmarket SaaS where revenue comes from statistical churn across many users.
  • Pipeline-based. List specific customers and contracts, each with size, contract length, billing cycle, close probability, start date, expansion, and churn. Best for enterprise SaaS, services, consulting, and agencies, where revenue depends on a small number of large contracts.

Either way, outputs MRR, ARR, bookings, billings, revenue, deferred revenue, and LTV. Intentionally simple. No expenses, no income statement. Just the revenue side, clean.

When to use this vs. the Standard Financial Model

Focused tool for SaaS and enterprise revenue mechanics. If you need full financial statements, expenses, hiring, and cap table, use the Standard Financial Model. Same revenue logic plus everything else.

Edit with AI

Every cell open. Inputs in blue, formulas in black. Built to be edited.

  1. Context primer. Paste it into Claude or ChatGPT before you make a change.
  2. Prompt guide. Ready-made prompts for setup, switching modes, and scenarios.
  3. Hemrock Skill. A drop-in Claude Agent Skill that loads this model's sheet map, prompts, and checks into any Claude Project. Free, with no connector to set up.
  4. MCP server. On ChatGPT, Cursor, or another tool? The MCP server feeds the same context to any AI that speaks MCP.
  5. Verify before you trust. The sanity-check prompts catch hallucinated numbers and wrong references.

Common questions

Why download this when AI can forecast SaaS for me?
AI will produce a SaaS forecast that looks right, and subscription mechanics (cohort churn, deferred revenue, MRR versus billings) are a common place for it to be subtly wrong. This gives it a structure where that accounting already holds, so it customizes instead of reinventing it.

Aggregate or pipeline, which mode do I need?
Aggregate if revenue comes from statistical churn across many users (consumer, SMB, midmarket). Pipeline if it depends on a handful of large contracts (enterprise, services, agencies). You can switch between them, so start with whichever fits and change later.

Is it too complex to use?
No, this is deliberately the simple one: just the revenue side, no expenses or statements. If you need the full picture, the Standard Financial Model has the same revenue logic plus everything else.

Excel or Google Sheets?
Both. All formulas open, no macros.

Documentation

Ratings

4.9(68 ratings)
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Reviews

Taylor's SaaS model has helped me quickly and easily build a financial model. It allowed me to easily capture the assumptions about my business model and discuss them with my investors. Allowing me to close a high six-figure seed round in record time.
Aaron Vidas
Aaron Vidas· CEO, StrategyBox
Taylor's SaaS model has helped me quickly and easily build a financial model. It allowed me to easily capture the assumptions about my business model and discuss them with my investors. Allowing me to close a high six-figure seed round in record time.
Aaron Vidas· CEO, StrategyBox