# Transaction exemptions for Strong Customer Authentication (SCA)

When using [Stripe Checkout](https://stripe.com/docs/payments/checkout) or the [Payment Intents API](/questions/transitioning-your-stripe-integration-to-paymentintents-for-strong-customer-authentication-sca-readiness), Stripe’s automated exemption engine will request the most applicable exemption for your transactions. Here are the most relevant exemptions for Strong Customer Authentication (SCA):
* [Low Risk Transactions](https://stripe.com/guides/strong-customer-authentication#low-risk-transactions)
* [Payments Below €30](https://stripe.com/guides/strong-customer-authentication#payments-below-30)
* [Fixed Amount Subscriptions](https://stripe.com/guides/strong-customer-authentication#fixed-amount-subscriptions)
* [Merchant-initiated Transactions (MIT)](https://stripe.com/guides/strong-customer-authentication#merchant-initiated-transactions-including-variable-subscriptions)
* [Trusted Beneficiaries](https://stripe.com/guides/strong-customer-authentication#trusted-beneficiaries)
* [Phone Sales (MOTO)](https://stripe.com/guides/strong-customer-authentication#phone-sales)
* [Corporate Payments](https://stripe.com/guides/strong-customer-authentication#corporate-payments)
## Additional Information
* [Strong Customer Authentication (SCA) Resources](/questions/sca-dashboard)