It says I have made double the amount I have. I have double checked all my inputs and they are correct so I'm not sure why it's showing profit as double the amount?

Welcome to the Community. I appreciate you for posting your concern here.

I'd be happy to share the guidelines to help you clear things up.

You'll want to double-check the amounts you've entered in your Bank register as well as in your Undeposited funds and make sure that it is not doubled. You may pull a Profit and Loss report to have a clear and detailed view of your financial statement. Here's how: 

1. Go to the Reports in the left menu.
2. Click View on the Profit and Loss report.
3. On the Other Business Expenses, double-click the amount to view the transactions.
4. From there, you can review them.

On the other hand, if the amount is doubled in your bank register you'll have to delete them manually. I'll show you how:

1. Go to your Chart of Accounts, and select the specific Bank Register 
2. Under the Action column, click View register.
3. Choose the specific transaction that is doubled and click Delete.

You may visit these links to guide you on how to categorize your transactions and reconcile your account flawlessly:

• Categorize and match online bank transactions in QuickBooks Online.
• Reconcile an account in QuickBooks Online.

The Community always welcomes you for further inquiries. Have a great day ahead!