Calculate taxes with our tax determination engine

IGEN Tax Determination can help you greatly reduce risk, create a competitive advantage and empower your tax team to do more through automation.

Easily calculate excise, sales, and use taxes in real-time, connect to your existing back-office system or e-commerce platform, and take control of your tax calculations with personalization tools that don't require IT help.

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Automate Tax Calculations

Automate tax calculation. Do more with less.

Tax teams are faced with rapidly increasing regulation, higher stakes of inaccuracy, and mounting complexities of frequent company consolidation, all while being asked to do more with less as experienced talent is lost and the knowledge gap grows.

There is a better way.

Manage complex indirect taxes with ease

With our Accelerated Onboarding and a flexible, user-friendly platform that delivers the lowest total cost of ownership, IGEN maintains a nearly 100% client retention rate.

Reduce time spent researching tax rates & defending audits

Minimize cost of IT resources

Reduce the risk of miscalculating taxes

Eliminate tax overpayments and underpayments

Rapidly expand to take advantage of market opportunities

Tax Determination Software

Don't take our word for it, here's the proof:

"Going with IGEN was the best decision. Our implementation was not easy (included multi-state, multi-product, complex tax rules), yet they hit every milestone without delay. From a customer service standpoint, they always go above and beyond. I would describe the relationship more like a strategic partnership rather than a vendor/customer relationship."

Controller, Booster Fuels

Download now: the ultimate guide to tax automation

Tax automation provides a wealth of opportunities that translate to reduced cost, increased efficiency, and greater revenue. Get started by downloading our Ultimate Guide to Tax Automation.

How our tax determination engine works:

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Connect to your existing systems

Connect IGEN Tax Determination to most back-office systems through an API or integrate with your e-commerce platform with our pre-built integrations. BigCommerce, Woo Commerce, and Shopify Plus. A Magento integration is coming soon.

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Calculate sales, use and excise tax

Calculate accurate taxes in real-time or on-demand. You'll be able to determine excise, sales and use taxes using up-to-date state and local rates. Seamlessly apply tax on top of tax when applicable.

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Take control of your tax calculations

Quickly and easily personalize your calculations with user-friendly, transparent tools that don't require IT help. Add discounts and coupons. Apply exemptions and other contractual adjustments.

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Frequently asked questions

Get answers to the most common questions about IGEN Tax Determination software.

IGEN Tax Determination covers the wider tobacco, vape and fuel industries including: cigarettes, other tobacco products, e-cigarettes/vapor products, gasoline, diesel, ethanol, biodiesel and related blends.

IGEN offers excise, sales, and use tax calculation.

We're set up for all U.S federal, state and select local jurisdictions.

Our software uses an API for a web service call to most back-office systems. We also have pre-built integrations to the most commonly used e-commerce platforms including: Big Commerce, Woo Commerce and Shopify Plus. A Magento integration is coming soon.

You control the data retention in our software so you’ll have access to the complete picture for each transaction: the information that was requested from IGEN and the information that was received back to the calling system.

Yes, you'll have access to a wide array of built-in user-friendly personalization options to modify standard tax logic.

Yes, if you’re using our excise tax compliance software you can supplement current master data into your request.

Automate with indirect tax software solutions

Start transforming your tax process with our stand-alone indirect tax solutions designed to solve your biggest pain points through automation. Or put them into action together as a full tax productivity suite customized to your business needs and your industry: tobacco, vape, fuels, or convenience stores.

Tax compliance software

Minimize the time and resources spent on compiling and preparing transaction data. Pull in data directly from your e-commerce platform and your back-office systems to create accurate filings.

Reconciliation software

Say goodbye to complex and monotonous reconciliation processes. Run your data through custom or pre-built matching processes, find the exceptions, and create automated workflows to do it all over again.

License management software

Maintain the licenses of each of your customers and vendors to reduce the risks of jurisdiction penalties. Store license information so you know what exceptions to apply and stay in compliance.

Three-minute demo: calculating excise tax with IGEN

To watch a demo on how you can automate tax calculation with IGEN Tax Determination, simply fill out the form below.