T230 · Cat-19 · Payment Schemes · Visa / MC / NACHA

Network Rule Change Impact Assessor

Simulate the impact of upcoming Visa, Mastercard, and NACHA rule changes on your transaction portfolio. Select a rule change, enter your portfolio parameters, and receive an estimated volume affected, interchange impact, compliance actions required, and implementation timeline.

Policy Mandate Export Client-Side. Zero PII.

Last Reviewed: 2026-05-09 · 2025–2026 rule change cycle

🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.

Educational Use Only This tool provides a self-assessment / educational framework for internal planning purposes only. It is not a regulatory audit, legal advice, or a substitute for a formal compliance review by a qualified advisor. Verify all interpretations against the official source text and applicable RTS/ITS/guidance published by the relevant authority.

Embedded Rule Change Reference — 2025–2026 Cycle

Network	Rule Change	Effective Date	Impact Level	Summary

Portfolio Parameters & Rule Change Selection

Select Rule Change to Assess

Monthly Transaction Volume Number of transactions per month

Average Transaction Amount (USD)

Card Mix (% consumer credit)

Channel Mix

Merchant Sector

EMV Chip Acceptance Rate (%)

3DS / SCA Adoption Rate (%)

Impact Assessment

Regulatory Citations

[1] Visa, Visa USA Interchange Reimbursement Fees, effective April 2026
[2] Visa, Visa Core Rules and Visa Product and Service Rules, April 2026
[3] Mastercard, Mastercard Rules and Interchange Rates, April 2026
[4] NACHA, NACHA Operating Rules & Guidelines, March 2026 amendments
[5] EMVCo, EMV 3-D Secure Specification v2.3

About This Tool

This tool models the estimated impact of 2025–2026 card network and NACHA rule changes on a transaction portfolio. Rule changes are drawn from the current Visa, Mastercard, and NACHA published update cycles. Impact estimates are indicative — actual impact depends on portfolio composition, issuer mix, and specific programme configurations.

⚠ Impact estimates are indicative only and based on published rule change summaries. Always verify effective dates and specific requirements directly with the relevant network or NACHA. Last Reviewed: 2026-05-09.