Connect TaxJar to automatically calculate and file sales tax for every order

I want to connect my TaxJar account so sales tax is handled automatically, without manual steps or spreadsheets. What I need A way to securely connect my TaxJar account from within the product (sign in to TaxJar and authorize access). Automatic sales tax calculation on each order based on: Ship-to address Nexus settings Product tax codes (when applicable) The calculated tax should show up clearly during checkout and on receipts/invoices. Orders should sync to TaxJar so I can: Track taxable vs non-taxable sales See the correct jurisdiction breakdown Use TaxJar for reporting and filing Admin controls Enable/disable the integration. Map products (or product categories) to TaxJar tax codes. Choose what order statuses get sent to TaxJar (for example: paid, shipped, refunded). Support refunds/voids so TaxJar stays accurate. Success criteria Taxes are correct and consistent across checkout, receipts, and TaxJar reports. I can verify syncing with a clear “last sync” status and error messages when something fails. Setup takes only a few minutes and does not require developer help.