Businesses and CPA firms see where they owe and approve every return before filing

FinStackk has launched SalesTaxx, an end-to-end sales tax compliance platform that takes businesses from nexus monitoring to filing in one place. It debuted this week at TechCrunch Disrupt 2026 in San Francisco, where FinStackk is a Silver Partner. SalesTaxx is built for growing ecommerce, SaaS and product businesses without a tax team, and for the CPA firms that serve them.

Each state sets its own economic nexus thresholds, and on January 1, 2027, California and Colorado begin taxing software sold as a service. Many businesses still track this in spreadsheets and learn they owe tax only when a state notice arrives.

Key facts

• Free Starter plan: nexus monitoring, threshold alerts and integrations at no cost
• Growth plan: $99 per month plus $25 per filing, covering taxability, exemption certificates, reconciliation, filing and expert support
• Connects to QuickBooks, Xero, Zoho Books, Odoo, Stripe, Shopify and Amazon, plus Excel and CSV uploads

"In more than 20 years as a CPA, I've watched too many good businesses learn about a sales tax obligation from a state notice," said Satya Yeruva, CPA, Founder and CEO of FinStackk. "We built SalesTaxx so finance teams see where they owe before it becomes a liability, know exactly what every filing costs, and approve each return before it's filed."

How SalesTaxx simplifies sales tax compliance

SalesTaxx gives one view of where a business owes, what is due and when. Alerts flag approaching state thresholds, and every figure ties back to the books line by line, so there are no surprises at filing time.

Sales tax management for growing businesses

Founders and finance leads see their exposure in every state, know each filing's cost upfront and reach sales tax experts without hiring a tax team.

Sales tax management for CPA firms

Accounting firms manage multiple clients from one view, with separate staff and client access and an approval trail for every filing.

SalesTaxx is available now: Book a demo or free trial - app.salestaxx.ai/signup.

About FinStackk

FinStackk is a Virginia-based accounting and tax compliance platform that serves more than 600 U.S. businesses with incorporation, accounting, tax filings, payroll, compliance and fractional CFO support.

Learn more at finstackk.com or follow SalesTaxx on LinkedIn.

View source version on businesswire.com: https://www.businesswire.com/news/home/20261015725085/en/