> ## Documentation Index > Fetch the complete documentation index at: https://docs.dfine.app/llms.txt > Use this file to discover all available pages before exploring further. # Billing and subscription > Manage your subscription, invoices and payment methods. You manage your subscription, invoices and payment methods under **Settings** and the **Billing** tab. ## Billing portal The billing portal handles your organisation name, billing address, VAT ID, payment methods, invoices, subscriptions, cancellations and plan changes, including upgrades and downgrades. Open it from the **Billing** tab. Plans are billed monthly, and you can download your latest invoice there too. ## Invoice details You can add a PO number before you select a plan, so it appears on your first invoice. Any custom info or PO value then shows up on every future invoice automatically. Compare plans and pay as you go rates.