Do I need to sign any contracts with third-party vendors separately from Hydrogen? March 17, 2021 16:53 Updated No. We have worked extensively with partners to streamline the onboarding process. Related articles Can I cancel my subscription at any time? Are discounts available if I pay annually? In which states will I need to pay sales tax on top of the Hydrogen SaaS fees? Can international companies with a subsidiary or secondary registration in the U.S. use the platform? Can I pay my subscription annually?