Is their a way to deposit a check from a client into my quickbooks bank?

Congratulations on getting a payment from your client, Sue!

Depositing a check (e-checks only) can be done through invoice payment or via sales receipt with a Check payment method. Therefore, you will need a QuickBooks Payments (Merchant) account connected to QuickBooks Online to process one. Sign up for free if you haven't yet.

I'm adding this article, which explains how to process payments with an Check payment method: Process an ACH bank transfer from a customer in QuickBooks Online.

Payment will be deposited into your bank account within 2-3 business days. However, the first payments will take time to process because your Merchant account is being built at that time. Learn more about deposit times for QuickBooks Payments.

Let me know if you have more questions about taking check payments. Take care and have a good one!