Glossary
A/B Testing
Abandoned Carts
Account Takeover
Account-to-Account Payment (A2A)
Accounts Payable
Accounts Receivable
Accrual Accounting
ACH Transfer
Acquirer
Acquiring Bank
Activation Rate
Adaptive Pricing
Add-to-Cart Rate
Address Verification System (AVS)
Affiliate Marketing
Alipay
Alternative Payment Method
AML Compliance
Amortization
Annual Contract Value (ACV)
Annual Plan
Annual Recurring Revenue (ARR)
Anomaly Detection
Anti-Money Laundering (AML)
API (Application Programming Interface)
API Banking
API Documentation
API Endpoint
API Key
API Rate Limiting
API Versioning
Apple Pay
ASC 606
Asynchronous Events
Audit Trail
Authentication
Authorization Code
Authorization Hold
Auto Capture
Auto Pay
Average Deal Size
Average Order Value (AOV)
Average Revenue Per Account (ARPA)
Average Revenue Per User (ARPU)
B2B SaaS
Bad Debt
Balance Sheet
Bank Transfer
Banking as a Service (BaaS)
Batch Settlement
Behavioral Analytics
Beneficial Ownership Reporting
Billing
Billing Automation
Billing Engine
Billing Integration
Billing Retry
Billing Schedule
Billing Threshold
BIN (Bank Identification Number)
Biometric Authentication
Blockchain
Boleto
Bookings
Bootstrapping
Bot Detection
Brand Awareness
Breakeven Point
Burn Rate
Buy Button
Buy Now Pay Later (BNPL)
CAC Payback Period
Cancellation Flow
Capital Expenditure (CapEx)
Capture
Card Brand
Card Issuer
Card Network
Card on File
Card Scheme
Card Skimming
Card Testing Attack
Card Verification Value (CVV)
Card-Not-Present Transaction
Card-Present Transaction
Cart Abandonment Rate
Cash Accounting
Cash Flow
Cash on Delivery
Catalog Management
CCPA (California Consumer Privacy Act)
Central Bank Digital Currency (CBDC)
CFPB (Consumer Financial Protection Bureau)
Chargeback Fraud
Chargeback Prevention
Chargebacks
Chart of Accounts
Checkout Conversion
Checkout Flow
Checkout Overlay
Checkout Page
Churn Rate
Churned MRR
Clearing
Click Fraud
Click to Pay
Click-Through Rate (CTR)
Cohort Analysis
Committed Monthly Recurring Revenue (CMRR)
Community-Led Growth
Competitive Moat
Compliance
Consumer Protection
Consumption Billing
Contactless Payment
Content Marketing
Contract Billing
Contraction MRR
Conversion Funnel
Conversion Rate
Conversion Rate Optimization (CRO)
Core Banking
Corporate Tax
Correspondent Banking
Cost of Goods Sold (COGS)
Cost of Revenue
Cost Per Acquisition (CPA)
Cost Per Click (CPC)
Coupon Code
CPQ (Configure Price Quote)
Credential Stuffing
Credit Balance
Credit Card
Credit Memo
Credit Transfer
Cross-Border Fintech
Cross-Border Payment
Cross-Selling
Crypto Payment Processing
Cryptocurrency
Currency Conversion
Currency Transaction Report
Customer Acquisition Cost (CAC)
Customer Concentration Risk
Customer Health Score
Customer Journey
Customer Lifetime Value (CLV)
Customer Onboarding
Customer Relationship Management
Customer Retention
Customer Satisfaction Score (CSAT)
Customer Segmentation
Customer Success Manager
Customs Duty
Data Breach Notification
Data Encryption Standard
Data Privacy
Data Processing Agreement (DPA)
Data Residency
DAU/MAU Ratio
Debit Card
Debit Note
Debit Order
Decentralized Finance (DeFi)
Decline Code
Deferred Revenue
Demand Generation
Depreciation
Device Authentication
Device Fingerprinting
Digital Bank
Digital Currency
Digital Delivery
Digital Goods
Digital Identity
Digital Lending
Digital Products
Digital Rights Management (DRM)
Digital Services Act
Digital Services Tax
Digital Storefront
Digital Wallets
Direct Carrier Billing
Direct Debit
Discount Code
Dispute Management
Disputes
Distributed Ledger Technology (DLT)
Domestic Payment
Double Spending
Double Taxation
Double-Entry Bookkeeping
Downgrade
Drop Shipping
Due Diligence
Dunning Management
Dynamic Checkout
Dynamic Currency Conversion
E-Money License
EBITDA
eCheck
Electronic Funds Transfer (EFT)
Embedded Checkout
Embedded Finance
Embedded Insurance
Embedded Payments
EMV 3-D Secure
EMV Chip
Encryption at Rest
Encryption in Transit
Entitlement
Escheatment
EU VAT Rules
Excise Tax
Expansion MRR
Expansion Revenue
False Positive
Faster Payments
Feature Gating
Fiat Currency
Financial Aggregator
Financial API
Financial Conduct Authority (FCA)
Financial Inclusion
Financial Reconciliation
Fintech Infrastructure
First-Party Fraud
Fiscal Representation
Flat-Rate Pricing
Flywheel Model
Four-Party Model
Fraud Detection
Fraud Rule Engine
Fraud Scoring
Fraud-to-Chargeback Ratio
Free Plan
Free Trial
Free-to-Paid Conversion
Friendly Fraud
Fulfillment
GAAP (Generally Accepted Accounting Principles)
GDPR (General Data Protection Regulation)
General Ledger
Geolocation Verification
Giropay
Global Tax Compliance
Go-to-Market Strategy
Google Pay
Graduated Pricing
Gross Margin
Gross Merchandise Value (GMV)
Gross Profit
Gross Revenue Retention (GRR)
Growth Hacking
GST (Goods and Services Tax)
ICP (Ideal Customer Profile)
iDEAL
Idempotency
Identity Verification
IFRS (International Financial Reporting Standards)
Import Tax
Inbound Marketing
Income Tax
Indirect Tax
Installment Payment
Instant Bank Transfer
Instant Checkout
Instant Payment
Instant Settlement
Insurtech
Interchange Fee
Inventory Management
Invoice Financing
Invoice Template
Invoicing
IP Geolocation
ISO 27001
Issuer Processing
Land and Expand
Landing Page
Lead Magnets
Ledger
Lending as a Service
Licensing Requirements
Live Commerce
Local Payment Method
Localized Checkout
Logo Churn
LTV to CAC Ratio
Machine Learning Fraud Detection
Magic Number
Man-in-the-Middle Attack
Manual Capture
Marketing Attribution
Marketing Qualified Lead (MQL)
Marketplace Facilitator Tax
Marketplace Model
Merchant of Record (MoR)
Metered Billing
Mid-Cycle Change
Minimum Spend
Mobile Money
Mobile Optimization
Mobile Payment
Money Market
Money Services Business (MSB)
Money Transmitter License
Monthly Active Users (MAU)
Monthly Recurring Revenue (MRR)
Multi-Channel Commerce
Multi-currency Support
Multi-Factor Authentication (MFA)
Multibanco
Near Field Communication (NFC)
Neobank
Net 30
Net 60
Net Dollar Retention (NDR)
Net Income
Net New ARR
Net Promoter Score (NPS)
Net Revenue Retention (NRR)
Network Effect
Network Token
Network Tokenization
New MRR
Nexus
No-Code Checkout
North Star Metric
OFAC Sanctions
Omnichannel
One-Click Checkout
One-Time Charge
Online Banking
Open Banking
Open Banking Regulation
Open Finance
Operating Expense (OpEx)
Operating Income
Order Fulfillment
Order Management
Overage
Partial Capture
Password Hashing
Pay-as-you-go Pricing
Payback Period
Payment Acceptance
Payment Aggregation
Payment as a Service (PaaS)
Payment Channel
Payment Confirmation
Payment Decline
Payment Facilitator
Payment Fintech
Payment Fraud
Payment Gateway
Payment Hub
Payment Institution License
Payment Link
Payment Localization
Payment Method
Payment Orchestration
Payment Page
Payment Plan
Payment Processor
Payment Rails
Payment Routing
Payment Service Provider (PSP)
Payment Services Directive
Payment Terminal
Payment Terms
Payment Token
Payout
PayPal
PayTech
PCI Compliance
PCI DSS
PCI SAQ (Self-Assessment Questionnaire)
Penetration Testing
Per-Seat Pricing
Per-Unit Pricing
Personally Identifiable Information (PII)
Phishing
PIN Debit
Pipeline Velocity
Pix
Plan Migration
Platform Banking
Platform Business Model
Platform Economy
Point of Sale (POS)
Postpaid Billing
Pre-Authorization
Predictable Revenue
Prepaid Billing
Prepaid Card
Presentment Currency
Price Book
Pricing Strategies
Privacy by Design
Pro-Rata Credit
Processing Fee
Product Bundling
Product Catalog
Product Page Optimization
Product-Led Growth (PLG)
Product-Led Sales
Product-Market Fit
Product-Qualified Lead (PQL)
Profit Margin
Programmable Money
Proration
PSD2 (Payment Services Directive 2)
PSD3 (Payment Services Directive 3)
Pull Payment
Push Payment
Rate Card
Real-Time Gross Settlement (RTGS)
Real-Time Payment
Real-time Revenue
Record Retention
Recurring Billing
Recurring Billing
Recurring Checkout
Recurring Payment
Recurring Revenue Model
Referral Program
Referrals
Refund
RegTech
Regulatory Sandbox
Regulatory Technology (RegTech)
Remittance
Renewal Rate
Representment
REST API
Retained Earnings
Retention Marketing
Return on Ad Spend (ROAS)
Return Policy
Returns Management
Revenue Churn
Revenue Loss
Revenue Per Employee
Revenue Recognition
Revenue Run Rate
Revenue Schedule
Revenue-Based Financing
Reverse Charge Mechanism
Right to Be Forgotten
Risk Assessment
Risk Scoring
Risk-Based Authentication
Robo-Advisor
Rule of 40
Runway
SaaS (Software as a Service)
SaaS Billing
Sales Efficiency
Sales Funnel
Sales Tax
Samsung Pay
Sanctions Screening
Sandbox Environment
Sarbanes-Oxley Act (SOX)
Saved Payment Method
SDK (Software Development Kit)
Seat-Based Billing
Self-Serve Model
Self-Service Portal
SEPA Credit Transfer
SEPA Direct Debit
Service Level Agreement (SLA)
Serviceable Addressable Market (SAM)
Serviceable Obtainable Market (SOM)
Settlement
Settlement Currency
Shipping Integration
Shopping Cart
Single Sign-On (SSO)
Smart Contract
Smart Routing
SMB (Small and Medium-sized Business)
Social Commerce
Social Engineering
Social Proof
Sofort
SOX Compliance
SSL Encryption
Stablecoin Payments
Stablecoins
Staircase Pricing
Standing Order
State Money Transmitter
Storefront
Strong Customer Authentication (SCA)
Subscription Billing
Subscription Box
Subscription Commerce
Subscription Payment
Super App
Surcharge Compliance
Suspicious Activity Report (SAR)
SWIFT
Synthetic Identity Fraud
Tax Compliance
Tax Exemption
Tax ID
Tax Invoice
Tax Jurisdiction
Tax Registration
Tax Remittance
Third-Party Risk Management
Threat Modeling
Tiered Pricing
Time to Value
Tokenization
Tokenized Assets
Total Addressable Market (TAM)
Total Contract Value (TCV)
Transaction Fee
Transaction Management
Transaction Monitoring
Transaction Reconciliation
Transaction Reporting
Transfer Pricing
Transport Layer Security (TLS)
Travel Rule
Treasury Management
Trial Balance
Trial Conversion
Triangulation Fraud
Two-Factor Authentication (2FA)
Unit Economics
Up-Selling
Upgrade
UPI (Unified Payments Interface)
US Sales Tax Nexus
Usage Monetization
Usage-based Billing
Usage-based Billing
User Adoption
VAT (Value-Added Tax)
Velocity Check
Vendor Compliance
Vertical SaaS
Vibe Coding
Viral Coefficient
Virtual Card
Virtual Goods
Virtual IBAN
Void Transaction
Volume Pricing
Vulnerability Assessment
WealthTech
Webhook Retry
Webhook Signature
Webhooks
WeChat Pay
Weighted Pipeline
White-Label Payments
Win Rate
Wire Transfer
Wishlist
Withholding Tax
Working Capital
Write-Off
X.509 Certificate
X12 EDI
XaaS (Everything as a Service)
XBRL (eXtensible Business Reporting Language)
Xenocurrency
XIRR (Extended Internal Rate of Return)
XML (Extensible Markup Language)
XML Digital Signature
XRP
XSS (Cross-Site Scripting)
