CereTax and CBIZ fix what most tax stacks get wrong — the disconnect between calculation and compliance. No more handoffs, guesswork, or crossed wires. Just tax that’s right the first time and holds up when it matters.
Integrations
Here's a pattern we see constantly: a company invests in sales tax software, builds the integrations, trains the team, and still ends up manually reviewing returns, chasing down exemption certificates, and treating every audit notice like a four-alarm fire.
The software works. The compliance doesn't.
That's not a technology failure. It's a gap between what calculation engines do and what tax teams actually need. The engine handles the transaction. But nexus analysis, exemption hygiene, audit defense, jurisdictional judgment calls, that's advisory work. And most companies are duct-taping it together with consultants who've never seen the inside of their tax engine and a tax engine that has no idea what their consultants recommended.
We partnered with CBIZ to close that gap.
Tax directors already know this. You can have the most accurate sales tax calculation engine on the market (cough CereTax cough), and it won't matter if your nexus study is from 2022, your exemption certificates live in three different folders (and someone's inbox), or your filing process depends on institutional knowledge that lives in one person's head.
Sales tax software handles the transaction layer. Compliance lives in the messy space between transactions and filings, where jurisdictional rules shift mid-quarter, where use tax obligations hide in plain sight, and where audit defense is won or lost.
That space has traditionally required either an expensive in-house team or a rotating cast of consultants bolted onto whatever tax engine you happened to be running. Neither option scales particularly well. Both create handoff problems. And handoff problems are where audit findings come from.
This isn't a logo swap on a co-branded PDF. It's a coordinated approach to the full sales tax compliance lifecycle — from the moment a transaction is taxed to the moment a return is filed and defended.
CereTax provides the calculation and compliance infrastructure: API-first sales tax software built for high-volume, multi-jurisdiction environments. Real-time tax determination across ERP, ecommerce, billing, and point-of-sale systems. Transparent logic. Audit-ready reporting. No black boxes, no mystery math.
CBIZ brings the advisory layer: nexus studies, exemption management, audit defense, and the kind of jurisdictional expertise that takes decades to build and roughly five minutes to need during a state inquiry.
Together, the model works like this: CereTax handles calculation and compliance automation. CBIZ handles the advisory, planning, and audit support. Both sides see the same data, speak the same language, and don't require your team to play translator between vendors who've never met.
One sales tax compliance solution instead of two vendors who don't talk to each other.
If you're a tax director at a company operating across dozens of jurisdictions — or a CFO evaluating the real cost of your current compliance stack — a few things worth noting.
The CereTax and CBIZ partnership is live now. If your current approach to sales tax compliance involves more workarounds than you'd like to admit, or more vendors than you'd like to manage, this is worth a conversation.
