Head of Sales & Partnerships

Matt Grattan

Matt Grattan, also listed as Matthew Grattan, is SVP of Revenue at Zamp. He previously led Avalara's ecommerce team before its IPO and served as VP of Sales at TaxJar before its acquisition by Stripe.

LinkedIn

Latest posts.

Accuracy & reporting
Sales tax accuracy guarantees: What makes the Zamp commitment different
The sales tax landscape has become increasingly complex for businesses. With economic nexus thresholds varying by state and penalties mounting quickly for mistakes, companies […]
January 20, 2026
•
5 min read
Integrations
Zamp’s QuickBooks Online Integration Ends Sales Tax Headaches
We’re proud to announce something that will fundamentally change how QuickBooks Online users handle multi-state tax requirements: Zamp’s QuickBooks Online integration.
January 14, 2026
•
6 min read
Accuracy & reporting
Making home rules make sense
Home rule refers to states where local counties and cities administer sales tax. Home rule jurisdictions march to their own drum with their own requirements, forms, and due dates.
January 2, 2026
•
2 min read
Nexus & registrations
Understanding economic nexus and exposure
In 2018, the Supreme Court ruled in favor of South Dakota in its case against Wayfair. This decision allowed states to require companies to collect sales tax based solely on...
December 3, 2025
•
4 min read
E-commerce & retail
How tariffs will impact businesses in the short and long term
Understand how tariffs affect your business in the short and long term. Explore impacts on pricing, supply chains, and competitive strategy.
December 1, 2025
•
8 min read
Partners
Add sales tax to your service offering—without the heavy lifting
Thanks to economic nexus laws, the requirement for businesses to support multi-state sales tax compliance has exploded. If you’re offering CPA, CFO, bookkeeping, or other...
November 29, 2025
•
3 min read