Taxing Via Octane
You can set a flat percentage at the customer or account level for all your invoices. For example, if you set a flat tax rate of 5%, an invoice with $100 in charges would cost $105 to the payer. Flat tax rates can be set in your “Invoicing & Payments” settings. This use-case is applicable when your taxation needs are straightforward and the same flat tax rate consistently. For more complicated taxing needs, refer to Taxing Via Stripe/Taxing Via Avalara.