RPDI
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ROI Calculator

Calculate the true cost of legacy software vs. modernization savings. See your projected ROI in seconds.

Company Profile

25
5500
$55,000
$30,000$200,000

Legacy System Costs

15 hrs
2 hrs60 hrs
$3,000
$500$25,000
8 yrs
1 yrs25 yrs
4 hrs
0 hrs24 hrs
12
050

Frequently Asked Questions

How is the ROI of legacy software modernization calculated?

We calculate ROI by comparing your current annual legacy costs (manual labor, IT maintenance, security risk, downtime, spreadsheet overhead, and productivity loss) against the projected costs after modernization. We apply a conservative 65% cost reduction — below the 70-80% reported by IDC — and project cumulative savings over 3 and 5 years minus the modernization investment.

What is the average payback period for software modernization?

Based on industry data, most SMBs see payback in 4-14 months. The exact timeline depends on your current waste level, system age, employee count, and industry. Companies with high manual workaround hours or frequent downtime see the fastest payback — often under 6 months.

What does "spreadsheet tax" mean in the calculator?

Spreadsheet tax refers to the hidden cost of maintaining critical Excel files that have become shadow systems — tracking orders, inventory, schedules, or financials because the main system cannot. Forrester Research estimates each critical spreadsheet costs approximately $2,400/year in maintenance labor, error correction, and version control overhead.

Is the security risk calculation accurate for my business?

Our security risk estimates are based on the IBM Cost of a Data Breach 2025 report ($4.45M average), scaled to SMB size. We apply industry-specific multipliers because regulated industries (healthcare, energy) face higher breach costs and compliance penalties. The calculator provides a conservative estimate — actual risk may be higher.

Can I share the ROI report with my team?

Yes. Click "Download Full Report" to get a detailed .TXT breakdown with all cost components, projections, and methodology notes. The report is formatted for easy sharing with stakeholders, CFOs, and decision-makers who need to justify the modernization investment.