Can I assign debits to bills after importing bank information?

I have a way around on how you can assign a payment to a bill. Let me guide you on how Dean.

QuickBooks Online (QBO) provides easy steps to record business expenses to give you a complete picture of your business and profit.

Generally, you can match the payments in the For Review tab directly to your bill. At the same time, you can also record a payment and match it to your bank transaction. To enter, follow the steps outlined below:

If you paid your vendor offline or haven’t yet recorded the payment through QuickBooks, you can mark the bill as paid through the Bills page.

1. Go to Get paid & pay, then Bills (Take me there).
2. Select the Unpaid tab.
   
3. For the bill you want to mark as paid, under the Action▼ dropdown, choose Mark as paid.
   
4. On the bill payment form, verify the information is correct, such as the Payee, Payment date, and Bank/Credit account fields. Make any changes if needed.
5. In the Amount field, enter the total amount paid.
6. In the Outstanding Transactions section, locate the bills the payment went to.
   Tip: If it covers multiple bills, select the checkboxes for those bills. You can split the payment and enter an amount for each bill in the Payment column.
7. If you have any credit for this vendor, you can pick it up from the Credits section.
8. When you're done, Hit Save and close.

To give you more options on how to record payments towards bills, check out this article for reference: Enter And Manage Bills And Bill Payments In QuickBooks Online.

After you've recorded the payment, you can now match the payments to your transactions. I've also added this great resource to show you the detailed steps on how: Categorize Online Bank Transactions In QuickBooks Online.

Please touch base with us here if you have any other concerns when recording payments. We're here to help you if you need further assistance.