TaxJar
Avalara
Thomson Reuters ONESOURCE
Vertex Cloud
Taxamo
Vertex O Series
Taxify
Sales Tax DataLINK
SourceForge
GitHub
GitLab
BitBucket
openDesktop.org
Gitea
Launchpad.net
OSOR
TaxJar
SourceForgeBased on our record, TaxJar seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Might want to check out taxjar.com, I haven't used it but one thing they claim to do is help with this compliance. Source: almost 4 years ago
Avalara - Cut tax compliance costs, not corners. Avalara automates tax compliance and can help improve accuracy while reducing costs.
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Thomson Reuters ONESOURCE - ONESOURCE tax software and solutions synchronize every aspect of your work and link international, country, state and local tax laws.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Vertex Cloud - Vertex Cloud offers sales and use tax automation solutions.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.