Some buyers, including in higher-tax states such as California, were undercharged by just over $7 on the $99.99 controller, according to a viral Steam subreddit post.
Valve told a customer it was aware of the problem, had corrected it, and would not retroactively bill affected purchasers for the missing tax.
The issue emerged shortly after launch as resale prices climbed online, while Valve said it was working to secure more stock for customers who missed the initial release.
As Valve faces massive lawsuits, does its handling of a minor tax error reveal goodwill or a pattern of systemic compliance failures?
With a new model announced for 2026, why is Valve restocking a decade-old controller amid major legal and supply chain turmoil?
How has the Steam Controller dodged the 'RAMpocalypse' that has crippled the entire tech industry and even Valve's own Steam Deck?