We discovered an issue yesterday where a small number of our US QuickBooks Online customers had their tax codes set to "inactive". As a result, these customers were not able to see and access their sales tax options when generating invoices in Method. We believe we have fixed this issue but continue to actively monitor. If you are experiencing any issues with sales tax, please contact our Support Team at 1.888.925.6238 ext 2 (9am to 6pm EDT, Monday through Friday).