# Payment Features

Finix has several features available that helps extend the functionality of your payments experience.

## Learn More

- [**Auth and Captures**  
  Learn how to authorize funds on a card before making a payment.](https://docs.finix.com/guides/online-payments/payment-features/auth-and-captures)
- [**Accept HSA or FSA Cards**  
  Learn about accepting HSA and FSA cards.](https://docs.finix.com/guides/online-payments/payment-features/fsa-and-hsa-cards)
- [**Collecting Tips**  
  Learn how to include tips when processing payments.](https://docs.finix.com/guides/online-payments/payment-features/collecting-tips)
- [**Buyer Charges**  
  Charge additional fees using Buyer Charges.](https://docs.finix.com/guides/online-payments/payment-features/buyer-charges)
- [**Level 2 / Level 3 Processing**  
  Capture more information to reduce interchange rates.](https://docs.finix.com/guides/online-payments/payment-features/level-2-level-3-processing)
- [**Sending Receipts**  
  Learn how to provide receipts for In-Person payments.](https://docs.finix.com/guides/online-payments/payment-features/sending-receipts)
- [**Split Transactions**  
  Learn how to split a transaction across multiple sellers or recipients.](https://docs.finix.com/guides/online-payments/payment-features/split-transactions)