WaterFlex – Partner Resource Library
InterPayments has partnered with WaterFlex to help merchants recover credit card processing fees through fully compliant surcharging, increasing savings without replacing existing payment processes or vendors. This resource library provides comprehensive marketing and sales materials about InterPayments. If you have any questions or inquiries, please contact partners@interpayments.com.
Merchant Referral Form
Effective July 1, 2026, we require all partners to submit referrals exclusively through our Partner Portal: https://partners.interpayments.com/login. This change streamlines the deal registration process and gives you real-time visibility into the status of your deals. For more information, please refer to our demo video and Partner Portal overview.If you have any questions or need assistance accessing the Partner Portal, please contact partners@interpayments.com.
ROI Calculator
Surcharge Assumptions
Pre-Surcharging Annual Credit Card VolumeONLY CREDIT CARD VOLUME (no debit card)
Maximum Desired SurchargeEnter a number lower than 3%. This is only used if a merchant wants to cap surcharges at 1% or 2%. Cannot exceed the Average Credit Card Processing Rate.
Savings Summary
Pre-Surcharging Card Fees
Pre-Surcharging Card FeesPre-Surcharging Credit Card Volume times your Average Credit Card Processing Rate
Fees Post Surcharging
Change in Fees
% of Credit Card Volume Surcharged
Total Potential Savings
Customer-Facing Materials
Surcharging Education
Recommended Reading
Work With the Surcharging Leader
Merchant, partner, or prospect: wherever you're starting from, InterPayments is here to help. Share what you're working on, and the right solution is a conversation away.