UST and CereTax Partner to Bring Embedded Payments and Tax Automation to Microsoft Dynamics 365 Business Central

USTPay and CereTax partner to deliver embedded payments and automated sales tax compliance natively inside Microsoft Dynamics 365 Business Central — eliminating manual reconciliation and replacing legacy tax engines with a modern, AppSource-native solution.

U.S. Transactions Corp. (UST) and CereTax, Inc. announced a partnership that connects embedded payment processing and automated sales tax compliance inside Microsoft Dynamics 365 Business Central — without requiring users to leave the platform.

The integration pairs USTPay, UST’s AppSource-native payment solution, with CereTax’s real-time tax calculation engine — a modern alternative to legacy tax platforms like Avalara. When a Business Central user processes a transaction, tax calculations and payment execution happen simultaneously within the ERP interface. No tab-switching, no manual data entry between systems, no reconciliation after the fact.

USTPay supports Visa, Mastercard, AEX, Discover, and ACH processing. CereTax replaces the legacy tax engine with API-first, transparent tax calculation and filing – purpose-built for companies operating across multiple jurisdictions who are done managing black-box logic and manual overrides – an area that often becomes a compliance headache as businesses grow. Together, the two systems share data natively, reducing the risk of errors typically associated with syncing separate platforms.

“We built USTPay to feel like it was always part of Business Central, not bolted on,” said Kate Coffey-Bacon, SVP of Marketing and Strategy at U.S. Transactions Corporation. “CereTax shares that same philosophy around how software should work inside an ERP. That alignment made this partnership a straightforward decision.”

“Business Central users shouldn’t have to choose between overpaying for a legacy tax engine and duct-taping something together themselves,” said Mike Sanders, CEO and Co-Founder, CereTax. ” We built CereTax as the modern alternative to legacy tax systems like Avalara, with accurate calculations, transparent logic, and no black boxes. Pairing that with USTPay gives customers tax and payments handled in the same place they’re already working, without the overhead or the drama.”

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