About Clarus Tax Technologies

Built by tax experts. Designed for real operations.

Clarus Tax Technologies builds sales tax compliance software for companies whose tax complexity has outgrown spreadsheets but do not need an enterprise platform with the bloat, the add-on fees, or the ticket queue.

Our software embeds decades of sales tax expertise directly into the product, so your team can manage compliance with accuracy, visibility, and control.

More Expertise. More Support. Better Results.

WHO WE ARE

A software company built from real tax experience.

Clarus Tax Technologies was founded in 2018 by professionals who spent years inside the sales tax world — advising businesses, defending audits, and implementing the enterprise systems that were supposed to solve sales tax compliance.

After the Wayfair decision expanded multi-state obligations, the gap between what businesses needed and what the market offered became obvious. Companies were stuck choosing between three bad options:

×
Automation that wasn’t properly configured creating more risk than confidence.
×
Disconnected point tools that solved one piece of compliance and ignored the rest.
×
Consulting-heavy solutions that created long-term dependency instead of operational independence.

We built Clarus because there was a fourth option missing from the market: practical compliance software that puts tax expertise directly into the product, so businesses can run their own compliance without paying for what they do not need.

Practical compliance software with tax expertise built in.

LEADERSHIP

Decades of sales tax experience, in one company.

The people behind Clarus have spent their careers solving the problems our software addresses.

JM

Jeff Mallory

CEO

in · LinkedIn

Jeff has more than 30 years in sales tax, with a focused specialization in sales and use tax. He has held leadership roles at KPMG, Deloitte, and Duff & Phelps, and has spent his career working directly with businesses on refund recovery, audit defense, voluntary disclosure negotiations, and sales tax software implementations.

That last piece matters. Jeff has implemented the major enterprise tax platforms enough times to know exactly where they create friction for real operating businesses, and what a better approach looks like.

JS

Jeff Stonerock, CPA

Chief Product Officer

in · LinkedIn

Jeff leads product at Clarus and is the architect behind AkuCalc, AkuCert and AkuLicense. He brings nearly 30 years of sales tax experience, with deep expertise in tax planning, audit defense, refund claims, and compliance across US and Canadian jurisdictions.

Before Clarus, Jeff spent 18 years inside Honda, where he was responsible for automating and integrating Vertex, Avalara, and Taxware across multiple Honda companies. He has seen the incumbent tax platforms from the inside: what they do well, where they break down, and what an operationally focused alternative needs to do differently. That experience is now embedded in Clarus software.

What Makes Clarus Different

Practical software. Embedded
expertise. Real support.

Our philosophy is straightforward. Technology should simplify compliance, not add to it. That

belief shapes every product decision we make.

🧠

Built by tax experts, not just developers

Our software is shaped by professionals who have worked directly in sales tax compliance, audit defense, and multi-state operations. The workflows, logic, and edge cases come from real-world experience — not theoretical assumptions.

⚡

Designed for independence

You should be able to operate Clarus software without hiring a consultant to translate it. We build for the team that uses the system every day, not the one that sells services around it.

🛠

Built for how businesses actually operate

Sales tax compliance is operationally messy. Multi-state shipping, exemption management, product taxability, and licensing requirements create complexity that generic platforms often overlook. Our software is designed around the realities businesses deal with every day.

💬

Support from people who understand sales tax

When you need help, you reach experienced US-based professionals who understand sales tax compliance and how businesses actually operate. No outsourced support queues. No layers of escalation. Just direct access to knowledgeable people when it matters.

Built For Your Industry

Why companies move away from legacy tax platforms.

The companies that come to Clarus tend to be running into the same set of problems with their existing systems:

Clarus was built as a practical alternative.
More expertise, with tax professionals who can give actual tax advice when you need it.

×

Transaction costs that climb faster than the business.

×

Add-on fees for support, integrations, or features that should be standard.

×

Complexity that requires outside consultants to operate day to day.

×

Platforms engineered for Fortune 500 tax departments, not operational teams.

×

Limited visibility into what is actually happening across jurisdictions and obligations.

OUR PRODUCTS

Products designed to
simplify compliance together.

Clarus software is built around the same compliance workflow, so calculation, filings, exemption management,

and licensing work together to support a more connected compliance process — without forcing you

into a single rigid platform.

Sales Tax Calculation

AkuCalc

Real-time rates, taxability logic, and ERP integrations. Accurate sales tax calculation without per-transaction surprises.

Learn more →

Exemption Certificates

AkuCert

Collection, validation, storage, and renewals. Designed to make exemption certificates a system instead of a recurring fire drill.

Learn more →

License Management

AkuLicense

Registrations, renewals, and multi-state license obligations tracked in one place with the dates and details needed to stay compliant.

Learn more →

Managed Returns

Returns Filing

Multi-state sales tax returns prepared and filed on your schedule. Accurate filings without the monthly scramble.

Learn more →

PROOF

What this looks like in practice.

Case Study · HVAC Distribution

$700K+ audit liability, reduced by ~80%.

A multi-state HVAC distribution company came to Clarus with a $700,000+ sales tax audit liability traced almost entirely to missing and expired exemption certificates. The team had no centralized system and no visibility into what was on file.

After implementing AkuCert and working through the audit alongside our team, the company saw an ~80% reduction in the original audit liability and a >99% reduction in audit exposure within three years.

"The difference was not just resolving one audit. It was having a system in place so the next one was not a problem."

-Controller · HVAC Distribution Company
~80%
Reduction in original audit liability
>99%
Reduction in audit exposure within 3 years

See if Clarus fits how you actually operate.

A short conversation is usually enough to tell. We'll walk you through the products, look at your current compliance setup, and give you a straight answer on whether we're the right fit.