Tax Determination for Excise, Sales & Use Taxes

4.8/5 stars for client support

Automate indirect tax determination with a tax engine designed for complex businesses and data. Save time, improve accuracy, and reduce risk.

IGEN Tax Determination Results
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  • Decision tree transaction logic
  • Rules & rates maintained by industry experts
  • Flexible architecture
HTP Energy
Midwest Distribution
US Energy
Scandinavian Tobacco Group
tax determination software
  • Connect to your existing systems
  • Calculate all applicable taxes
  • Tax rules & rates maintained by experts
  • Apply exemptions & discounts
  • Personalize tax calculations

Leverage tax engine software built for complex data

Our tax engine software uses advanced decision-tree logic to calculate all applicable taxes, collect allowances, and apply discounts.

Simplify indirect tax calculation

Use IGEN Tax Determination to automatically calculate taxes across U.S. federal, state, and local jurisdictions:

  • State excise tax
  • Federal excise tax
  • Inspection fees
  • Collection allowance
  • Environmental taxes & fees
  • Deferrals
  • Prepaid sales taxes
  • Sales & use taxes
  • Tax on tax
  • And more!
IGEN Tax Determination Solution
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Loved by finance & tax teams

“Being able to calculate the taxes on all 40 states we do business in without touching them is huge; it’s sped up our process tremendously.”
Read the case study
Tax Manager
HTP Energy

It’s not table-based rate calculation, it’s decision-tree tax determination

Complex businesses need a tax engine flexible enough to handle changing business lines, regulations, and data. Our tax engine software is more than a tax rate service—it’s comprehensive transaction compliance.

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Reduce Time Researching Tax Rates
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Increase Accuracy of Applicable Taxes
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Reduce Risk of Miscalculated Taxes

Leave endless tax rate research and table-based tax calculations behind. Say hello to intelligent tax determination in one transparent platform.

Digital Acceleration in Tax Compliance

Explore how tax teams are increasing efficiency, improving accuracy, and reducing costs with digital transformation.

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Connect to your existing systems

Back-office Systems

Our platform’s API architecture enables connection to your existing back-office system without significant modifications or custom-built middleware.

E-commerce Platforms

Pre-built integrations to common e-commerce for real-time tax calculations.

back-office integrations for tax determination software
Calculate excise taxes with decision tree logic

More than a rate service

Decision-Tree Logic

Tax determination should go beyond rate calculation. Our tax engine software uses advanced decision-tree logic to ensure comprehensive transaction compliance.

  • Validate counterparty licensure
  • Confirm legal ability to sell
  • Apply collection allowances & administrative discounts
  • Identify required location information
  • Calculate federal, state, and local taxes
  • And more!

Validate licensure & legal ability to sell

Optional license management

Validate counterparty licensure and confirm legal ability to sell in real-time with optional add-ons.

See license management options
Validate tax licenses
Calculating sales, use, excise taxes across the US

Take control of tax determination

User-Friendly Tools

Quickly and easily personalize your calculations with user-friendly, transparent tools that don’t require IT help.

Personalize Calculations

Customize calculations for non-tax fees. Add discounts and apply exemptions or other contractual adjustments.

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SOC 1 Type 2 Certified

Our SOC 1 Type 2 certification under all five trust service criteria is a responsibility we take seriously, ensuring that client data is protected and our systems are secure.

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Answers to your questions

Every company we serve is unique, and that’s why IGEN’s Tax Determination is too. Ready to think differently about managing tax determination?

Start with the only tax determination platform that’s built around a data engine.

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

IGEN Tax Determination handles excise tax, inspection fees, collection allowance, underground storage, environmental fees and taxes, deferrals, prepaid sales taxes, sales taxes, tax on tax, additional fees, etc.

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

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 Tax Determination and the information that was received back to the calling system.

Yes, if you’re using the rest of the IGEN platform, your core data can be used to supplement rate requests.

New product data can be added to IGEN Tax Determination by a client at any time. New-to-industry products or a new tax jurisdiction can be added by request with a 60-day notice policy.

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.

We strongly recommends clients use our e-commerce integrations as we do not support externally developed e-commerce platforms and cannot guarantee speed, reliability, or conformity for client-developed integrations.

Resources

4 Things Your Tax Engine Could Do

Is your tax determination engine doing everything it could be for the business?

Fuel Tax Determination Strategies

Unlock more effective determination strategies in the complex world of fuel taxation.

From the IGEN Tax Team

Vape, E-Cig & E-Liquid State Excise Taxes

Tobacco & Cigarette State Excise Taxes

Gas State Excise Taxes

Visit the IGEN blog
View the Resource Center

Automate Tax Determination

Help your business do tax calculation right, with ComplyIQ by IGEN. Talk to an expert today.

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(888)998-4436

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