Merchant Payments & MoR Детермінований математичний рушій · Модель 2026

Інструменти та FinOps-калькулятори (Україна та східноєвропейські інженерні хаби)

Calculate your exact net revenue and processing drag across Stripe, Lemon Squeezy, Paddle, and Shopify Payments factoring in interchange, international cross-border fees, currency conversion, and chargeback dispute reserves.

Сценарії:

1. Processing Volume & Ticket Size

$1,000Default $50,000$250,000
$5Median $45$500

2. Processing Rates & Surcharges

Stripe/Shopify: 2.9% · Lemon Squeezy/Paddle: 5.0%

3. Disputes, Fines & Platform Overhead

Visa/Mastercard excessive monitoring threshold is 0.90%–1.00%
Net Estimated Monthly Take-Home
$47,780.00
Effective Take-Home: 95.56% · Processing Drag: 4.44%
Gross Monthly Volume $50,000.00
↳ Estimated Transactions 1,111 tx
↳ Domestic Volume $37,500.00
↳ International Volume $12,500.00
Base Processing (MDR + Fixed) -$1,783.30
International Card Surcharge -$187.50
Currency Conversion / FX Fee -$125.00
Chargebacks & Fines Drag -$124.20
Monthly Gateway / Platform Fee $0.00
Total Processing Drag -$2,220.00
Mathematical Transparency

Calculation Formulas & Models

Every metric on FoxyData is deterministic, transparent, and auditable. Below are the algebraic definition and equivalent spreadsheet formula.

Algebraic Model
Net Take-Home = Gross Volume - (Gross Volume × MDR%) - (Transactions × Per-Tx Fee) - (International Volume × Cross-Border%) - (Foreign Volume × FX Spread%) - (Disputes × Dispute Fee) - Monthly Platform Fee

Evaluated client-side in floating-point arithmetic with strict zero-division and boundary guards.

Spreadsheet (Excel / Sheets)
= Gross - (Gross * P_mdr) - (ROUNDUP(Gross / Ticket, 0) * Fee_fixed) - (Gross * P_intl * P_xb) - (Gross * P_fx * P_fx_spread) - (ROUNDUP(Gross / Ticket, 0) * P_cb * Fee_dispute) - Fee_monthly

Drop-in formula for financial models, cost forecasting spreadsheets, and ERP analysis.

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Knowledge Base

Frequently Asked Questions

Empirical engineering and financial explanations based on contractual rate sheets and production benchmarks.

What is the primary difference between a Payment Service Provider (PSP) and a Merchant of Record (MoR)? +

A PSP like Stripe acts as a payment facilitator: you maintain the legal merchant account, handle global sales tax/VAT compliance, and bear direct liability for fraud. An MoR like Lemon Squeezy or Paddle becomes the legal reseller of your digital products, automatically collecting and remitting global sales tax/VAT, managing chargebacks, and shielding you from foreign tax registration filings in exchange for a higher headline take-rate (typically 5% + $0.50).

How do international cross-border and FX fees impact merchant take-home margins? +

When an overseas customer purchases using a foreign-issued card, processors add an international interchange surcharge (typically 1.0% to 1.5%). Furthermore, if settlement occurs in a different currency, an FX spread fee (typically 1.0% to 2.0%) is deducted. On a $100 international sale, a nominal 2.9% fee easily expands to 5.4% in effective processing drag.

What chargeback threshold triggers penalty programs with Visa and Mastercard? +

Visa (VAMP) and Mastercard (VDMP) monitor dispute-to-transaction ratios. Crossing 0.90% to 1.00% dispute rate places a merchant into excessive chargeback monitoring programs, leading to mandatory dispute assessment fines of $50 to $100 per chargeback, mandatory remediation plans, and potential account termination.