Calculating Excise Taxes with IGEN

If you’re not accurately calculating your taxes, you’ve got a problem. We’ve got you covered. Easily calculate excise, and 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.

Booster fuels logo
midwest goods logo
Scoular logo
njoy logo
U.S. oil logo


Your complete toolkit for reducing redundancy and risk, all while ensuring you have better visibility of tax implications across the organization.

Finally, a platform to help you automate tax calculation & manage your excise taxes with ease.

Reduce time spent researching tax rates and defending audits with real-time updates for tax regulatory changes and audit trail capability

Eliminate tax overpayments and underpayments with accurate, out-of-the-box tax calculations in real-time or on-demand

Identify past overpayments and recoup tax dollars

Limit credit rebills and strain on resources due to missed tax applications

Reduce the risk of miscalculating taxes that result in costly penalties and assessments

Hear from our clients

Automate Tax Calculations

"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."


How to calculate taxes with IGEN


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.



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.



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.


Frequently asked questions

Get answers to the most common questions about calculating taxes with IGEN.

IGEN 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.

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.

Your toolkit across the compliance lifecycle


Managing Licenses

Staying on top of licenses can be a huge burden. Meet your one-stop shop for partner and vendor management.

Learn more here.


If you’re not accurately calculating your taxes, you’ve got a problem. We’ve got you covered.

Learn more here.


Stop spending so much time trying to meet never-ending tax deadlines. Reduce your filing times by up to 75%.

Learn more here.


Are you trying to find the needle in the haystack? Say hello to faster and easier data reconciliation.

Learn more here.

Watch a 3-minute demo on calculating tax with IGEN

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