Full Case Study
Project breakdown
Key Takeaway
A US SaaS company paying 340 international contractors via wire transfer reduced costs from $630,000 to $2,160 annually. Polygon PoS batch payroll: 340 contractors in one transaction, $0.08-0.12 gas. 94% contractor onboarding completion via Magic Link. 91% satisfaction (vs 54% previously). Development cost: $38,000. Payback: 22 days.
The Problem
340 international contractors in 47 countries. Prior payment method: international wire transfer via SVB/Chase. Average processing time: 3–7 business days. Average wire fee: $35–$45 per transfer. Monthly wire fee cost for 340 contractors: $42,000–$63,000. Annual cost: $504,000–$756,000.
What We Built
Polygon PoS deployment. Contractor onboarding via Magic Link: 'Your payment method has been upgraded. Claim your USDC wallet in 2 minutes.' Average time: 8 minutes. 94% completed onboarding within 7 days.
Payroll smart contract:
Single batchPay() call distributes to all 340 contractors in one blockchain transaction. Each contractor receives exact USDC equivalent of their invoice amount. Gas cost for entire pay run: $0.08–$0.12.
Results at 12 Months
| Metric | Wire Transfer | USDC Payroll | Saving |
|---|---|---|---|
| Monthly payment processing cost | $52,500 avg | $180 (gas + infrastructure) | $52,320 |
| Payment settlement time | 3–7 business days | < 4 minutes | — |
| Failed/returned payments | 8.4 avg | 0 | — |
| Contractor satisfaction | 54% satisfied | 91% satisfied | +37 points |
| Annual cost | $630,000 | $2,160 | $627,840 |
Development cost: $38,000 (8 weeks). Payback period: 22 days.
