What is the maximum amount credit/ debit card that a customer can charge?

Some said $4,999 per transaction. You should split the amount or have another payment gateway as a backup.

Good morning, @bryantsheatair. 

Congrats on making your first post here in the Community. I appreciate you coming here with your question. 

Some QuickBooks Online (QBO) Payments users have a limit on how much they can get paid for ACH and credit card transactions in a 30-day rolling period. Once you reach the processing limit, you'll only be able to get paid with cash or checks until it opens up again as time goes by. 

To figure out your limit, I recommend contacting our Merchant Services Support Team. They'll be able to look further into your account to get those details for you. To get in touch with them, click this link and pick the product you're using. 

In the meantime, you can check out these guides for additional information for you and your business: 

• Take and process payments with QuickBooks Payments

• Find out when QuickBooks Payments deposits customer payments

This should get you on the right track for getting a definite answer to your question. Come back to let me know what they say. I want to ensure that your concerns are addressed. Take care!