Hi basilesandra,
Welcome to Community! I see this is your first time here and we're happy you're reaching out! Having your Online Payroll setup correctly is key to ensure the funds are being withdrawn from the correct account. QuickBooks Online Payroll provides users with the option to add, edit or modify your Company preferences. I'd be happy to guide you through the steps.
To make changes to the mapping of the Payroll Accounts, go to the Gear > Payroll Settings > Accounting. Make any changes necessary by clicking on the Drop-Down arrow for each of the accounts listed. When you're finished press OK.
If you also need to combine two similar accounts in your Chart of Accounts, for payroll, you'll need to merge the accounts. I suggest going through the account to make sure that all transactions are strictly payroll. Once you merge accounts, this cannot be undone.
Follow these steps to merge the accounts:
1. Click the Gear icon located in the upper-right hand corner and select Chart of Accounts.
2. In the Action column, select Edit for the account you're keeping.
3. Copy or take a Screen Shot of the Name, Detail Type and if the sub-account is marked, uncheck it.
Once you hit Cancel, please move on to the following steps:
1. Go to the account you don't want to use and click Edit in the Action column.
2. Enter the Name and Detail Type exactly as it is showing in the account above (the one you're keeping)
3. Ensure all information is entered from the Screen Shot you took.
4. Save.
5. When you see the notification box click Yes to confirm that you want to merge the two accounts.
All transactions in the account will be moved and the secondary account will no longer be in your Chart of Accounts.
I hope this helps! Feel free to reach back out if you need additional assistance.