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Signature tool · CFO AI Ledger

AI ROI & business case builder

Enter the use case, its volume, the time saved per item, costs (build, integration, change, licences, tokens, people), an adoption curve, your discount rate and a risk haircut. The tool computes yearly cash flows, NPV, IRR, simple ROI, the payback month, a ±20% sensitivity tornado and the adoption level at which the case breaks even, then exports a one-page business case and the cash flows. The math runs in your browser; AI only explains the result.

Example data, illustrative assumptions.The pre-filled inputs are an illustrative assumption for an AP invoice case, not a benchmark. Use your own numbers.

1 · The use case and its benefit

2 · Costs

One-off (year 0)

Run costs per year

3 · Adoption

How adoption grows

4 · Finance assumptions

NPV

$218,671

IRR

47.2%

Simple ROI

66%

Payback

Month 25 (year 3)

Break-even adoption

66% of plan

Break-even needs 66% of the planned adoption (peak ≈ 60%).

Yearly cash flows

Yearly cash flows for AP invoice capture and coding (example)
YearAdoptionBenefitsRun costsOne-offNetCumulativeNet bar
Y00%$0$0$180,000−$180,000−$180,000
Y140%$118,400$82,800$0$35,600−$144,400
Y275%$222,000$87,000$0$135,000−$9,400
Y390%$266,400$88,800$0$177,600$168,200
Y490%$266,400$88,800$0$177,600$345,800

Totals over 4 years: benefits $873,200, costs $527,400. NPV discounts each year at 10% (end-of-year). Payback uses monthly cash.

Sensitivity: what moves the NPV most

Each driver moved ±20% with everything else fixed. Bars show the change from the base NPV ($218,671). Adoption is scaled without a 100% cap so the bar stays symmetric.

  • Adoption−20%: $89,487 · +20%: $347,855
  • Annual volume−20%: $98,584 · +20%: $338,757
  • Minutes saved per item−20%: $98,584 · +20%: $338,757
  • Run costs−20%: $273,579 · +20%: $163,762
Markdown = one-page business case · CSV = yearly cash flows
The scores are calculated in code. AI only explains them — check anything important.

Reference points (sourced)

Published figures to sanity-check your inputs. They are not defaults: each comes from a different context, so read the caveat before you use one.

No reference points are published yet. Every default above is an illustrative assumption: use your own numbers.

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