I'd like to welcome you here in the Community, Lewishamelectrician. Let's figure this out and check why amounts are doubling.
However, I'd like to ask what steps you followed to create the invoice? Are you also using a third-party app (like Square, PayPal, or Shopify) that might be automatically creating a deposit entry when an invoice is recorded?
Please note that the process of creating an invoice in QBO does not automatically add a deposit, unless the Deposit feature is activated.
If this is the case, you can turn off this feature to prevent a deposit from being automatically included on the invoice form.
Here's how to turn it off:
- Go to the Gear or Settings icon and select Account and settings.
- Proceed to the Sales section, then click Edit ✎ in the Sales form content section.
- Turn off Deposit by sliding the bar to the left.
- Click Save, then choose Done.

If you're using Online Banking, a duplicate payment can also happen if the Add function was used instead of Match.
To prevent duplicating the amount, make sure to use the Match function once the payments are downloaded in QBO.
Follow these steps on how to handle downloaded transactions to prevent the deposit from being duplicated:
- Go to the Bank transactions window.
- Find the downloaded transaction that came through your bank feeds.
- Choose Match or Find match, then look for the invoice or manually recorded payment.
- Click Match.

Check out this article for more details: Match your bank and credit card transactions.
Let me know if you need more help from us.