TestedSolution Framing, Demo & ProposalQuick Win (under 10 min)

Build an ROI and TCO Business Case for SaaS

Generate a Year 1 ROI calculation, 3-year TCO comparison, payback period, and risk-adjusted projections for a proposal.

About this prompt

This prompt helps AEs and SEs build the financial justification section of a SaaS proposal, translating deal context and discovered value drivers into a structured business case. It produces a Year 1 ROI calculation, a 3-year TCO comparison, a payback period, risk-adjusted projections, and a narrative explanation alongside the numbers. Use it when a deal requires economic buyer approval and you need to quantify value before the final proposal goes out.Most enterprise SaaS deals above a certain threshold require a written business case before the economic buyer will sign off, and most reps either skip it or build one that's too optimistic to survive scrutiny. This prompt takes your deal details — contract value, implementation cost, time savings, revenue impact, risk reduction, and cost avoidance — and constructs a defensible business case with the five components procurement and finance teams actually review. Fill [HOURS/FTEs SAVED] and [TOOLS CONSOLIDATED/COSTS AVOIDED] from discovery; those two levers typically drive the most compelling ROI story. [GROWTH/RETENTION IMPROVEMENT] is valuable to include if you have it, but mark it risk-adjusted rather than base case to maintain credibility. Use this prompt at the proposal stage, not in discovery — you need real numbers from the prospect for the output to mean anything. The output format (table plus narrative) is designed to paste directly into a proposal or share as a standalone business case document. One practical note: the prompt also builds a soft benefits section for harder-to-quantify items, which is useful when the hard ROI is borderline — it gives the champion language to justify the decision qualitatively.

The prompt

Create the ROI/business case section for a SaaS proposal. Deal context: - Prospect: [COMPANY] - Annual deal value: [ACV] - Contract length: [MONTHS/YEARS] - Implementation cost: [IF ANY] Value drive
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Variables to replace

COMPANY|ACV|MONTHS/YEARS|IF ANY|HOURS/FTES SAVED|GROWTH/RETENTION IMPROVEMENT|COMPLIANCE/SECURITY BENEFITS|TOOLS CONSOLIDATED/COSTS AVOIDED|IF KNOWN|TIME × SALARY|DEALS LOST/DELAYED

How to run it

  1. Copy the prompt and paste it into Claude, ChatGPT, Gemini, or Copilot — it's tuned to run in any of them.
  2. Replace the variables — swap each bracketed token for your deal's specifics. The variables list above explains every field.
  3. Make it yours — run it, keep what's strong, and tighten your inputs on the next pass. The prompt improves with your context.

What good output looks like

Make it yours

StageProposal
SeatAE, Sales Engineer
DifficultyAdvanced
Time to valueQuick Win (under 10 min)
Works withAI-Agnostic
CategorySolution Framing, Demo & Proposal
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