> ## Documentation Index > Fetch the complete documentation index at: https://support.i.moneyforward.com/llms.txt > Use this file to discover all available pages before exploring further. # 4. Register Your Credit Card > Register a credit card when you are ready to start using this service in full. Register a credit card when you are ready to start using this service in full. You will need your **credit card number**, **expiration date**, and **security code**. Please have your card ready. Visa, Mastercard, and American Express are accepted. #### Register a Credit Card 1. Go to **Settings** > **Billing** > **Payment Settings** and click the **Manage** button to open the payment settings screen. Screenshot 2. Review the amount to be charged, then register your payment method. Screenshot 3. You are all set. Billing starts automatically after your trial period ends. See [How Pricing is Calculated](/en/it-management/faq/ghm83nwmvs-price) for details on how charges are calculated. Screenshot #### Next Steps Consider the following settings to get more out of this service. * [Invite Users](/en/it-management/tutorial/93a9bikaqq-user) * [Configure Slack Notifications](/en/it-management/retired/76lzcncxyx-slack-notification) * [Connect a Cost Master](/en/it-management/tutorial/qk18kbsiv1-cost-master) * [Detect Shadow IT](/en/it-management/shadow-it/pz89ebygib-discovery) * [Manage Devices](/en/it-management/device/erfxlknd5e-1-devices)