How can I transfer $50.00 from one account to another within the same bank?

Glad to have you in the Community, @jscrym.

You'll want to use the transfer feature from your QuickBooks Online (QBO) account to transfer that amount. Let me guide you how.

1. Go the (+) Plus icon.
2. Select Transfer under Other.
3. Choose a bank account where the funds is coming out in the Transfer Funds From the drop-down menu.
4. Select a bank account the funds are being deposited from the Transfer Funds To drop-down menu.
5. Enter the $50 in the Transfer Amount field.
6. Fill in the needed details.
7. Once done, click Save and close.

Here's an article for more details: Transfer funds between accounts.

Once done, you can now reconcile your account to match your bank statement. For the detailed steps, you can check this article: Reconcile an account in QuickBooks Online.

 You can always count on us if you need more assistance in transferring funds in QBO. Our door is always open.