State & Local Rules
Handles state, county, city and special-district tax layers.
MobiTax Product Family
How MobiSalesTax-USA Works
Real-time U.S. sales tax determination, evidence, reporting, and control.
A U.S. sales tax execution platform for merchants, marketplaces, payment partners and tax authorities, designed for taxability, nexus, sourcing, exemption handling, reporting and audit evidence.
MobiSalesTax-USA
Platform
Platform
Data Inputs
Orders Addresses Products Exemptions Certificates
✓
Outputs
Tax Results Evidence Reports Returns Audit Trail
Real-Time
Determination Comprehensive
Coverage Trusted
Evidence
Determination Comprehensive
Coverage Trusted
Evidence
MobiSalesTax-USA at a Glance
Nexus Intelligence
Applies economic and physical nexus rules by jurisdiction.
Exemptions & Resale
Validates exempt transactions and resale certificates.
Audit Evidence
Preserves address, product, rate and transaction evidence.
How It Works
Customer Purchase
Sale begins through POS, e-commerce checkout, invoice or marketplace order.
Address & Sourcing Check
Destination or origin sourcing is determined using ship-to and bill-to location rules.
Product Taxability Mapping
Items are classified to determine taxability by product category.
Nexus Evaluation
Merchant nexus exposure is checked by state and locality.
Exemption Validation
Certificates, nonprofit status or resale claims are validated when applicable.
Sales Tax Calculation
Correct state and local sales tax is calculated in real time.
Transaction Evidence & Ledger
Each event stores jurisdiction, rate, product, exemption and tax evidence.
Reporting, Filing & Oversight
Dashboards, reconciliation, return support and audit review are generated.
System Components
Merchant / Marketplace Portal
Manage settings, view results and monitor performance.
Tax Determination Engine
Calculates tax using rules, rates and real-time transaction data.
Nexus & Compliance Engine
Evaluates nexus, monitors thresholds and tracks obligations.
Exemption Certificate Manager
Collects, validates and stores exemption and resale certificates.
Reporting & Filing Workspace
Creates returns, reconciles tax and manages filings by jurisdiction.
Audit & Control Center
Provides audit trails, controls, alerts and investigation tools.
U.S. Sales Tax Complexity
Multi-jurisdiction rates
Thousands of combined state, county, city and special-district rate combinations.
Economic nexus thresholds
Varying sales, transaction and other thresholds create filing and collection obligations.
Product-specific taxability
Goods, services and digital products have different rules across jurisdictions.
Marketplace facilitator rules
State-specific laws determine collection, remittance and reporting responsibilities.
Operational Outcomes
More Accurate Tax
Reduces under-collection and over-collection.
Lower Compliance Burden
Automates rate determination and evidence capture.
Better Audit Readiness
Produces traceable and defensible transaction records.
National Scale
Supports merchants operating across multiple U.S. states.