Sales Tax Software for
E-commerce Businesses
Trusted by hundreds of cross-border businesses
Why E-commerce Businesses Need Sales Tax Software
Sales tax rates and rules vary across thousands of U.S. jurisdictions and change frequently.
Economic and physical nexus can be triggered as sales grow, requiring timely registrations.
Incorrect calculations or missed filings can lead to penalties, interest, and audits.
End-to-End Sales Tax Compliance Made Easy
Automates tax calculation, exemption management, filing, and remittance, reducing manual work and compliance risk.
Track nexus, manage filings, and ensure compliance across US states and international jurisdictions from one platform.
Automatically tracks transaction volumes and alerts you when you approach state nexus thresholds.
Ensures exemption certificates are valid and properly recorded at the time of filing.
Integrates with leading e-commerce platforms and ERP systems to keep your operations running smoothly.
Email and chat support included. Enterprise customers receive a dedicated account manager.
How Commenda Works
01
Connect your e-commerce platforms
02
Configure states, tax rules, and nexus obligations
03
Automate tax calculation, filing, and remittance
E-commerce Platforms We Support
- Shopify
- BigCommerce
- WooCommerce
- Magento (Adobe Commerce)
- Wix eCommerce
- Squarespace Commerce
- Amazon
- eBay
- Etsy
Trusted by global teams
Who Should Use Commenda?
Small businesses
Automatically manage sales tax without extra cost or hassle.
Growing e-commerce brands
Easily handle sales tax as your business expands to more states.
Large online retailers
Simplify complex sales tax, even across multiple states or countries.
Frequently Asked Questions
Sales tax software automates the calculation, collection, filing, and remittance of sales tax for online businesses. It helps e-commerce sellers stay compliant with state and local tax laws as they sell across multiple platforms and jurisdictions.
Yes. After the South Dakota v. Wayfair ruling, e-commerce businesses must collect sales tax in states where they establish nexus. As sales expand across states and platforms, manual tax management becomes error-prone and difficult to scale.
Sales tax software tracks transaction volume and revenue by state and compares it against state-specific economic nexus thresholds. When you approach or cross a threshold, the software alerts you so you can register and stay compliant.
Yes. In addition to native integrations, Commenda offers an API that supports custom, headless, in-house, and emerging e-commerce platforms, ensuring consistent sales tax compliance across your entire tech stack.
Yes. Commenda automates sales tax filing and remittance across multiple US states, helping businesses meet deadlines and reduce the risk of penalties or audits.
Yes. Commenda manages exemption certificates and ensures they are valid and properly recorded at the time of filing, reducing audit risk for tax-exempt transactions.
International sales tax compliance is available under Commenda’s Enterprise plan, designed for businesses with cross-border operations and complex global tax requirements.
Commenda integrates with major platforms such as Shopify, WooCommerce, BigCommerce, Magento (Adobe Commerce), Amazon, eBay, Etsy, and more. Additional platforms can be supported via API.
Most businesses can get started quickly by connecting their platforms and configuring tax settings. Onboarding timelines vary depending on the number of states, platforms, and complexity of operations.
Yes. Commenda offers flexible pricing and a Basic plan designed for small and mid-sized e-commerce businesses, while also supporting more complex needs as businesses grow.