Trying to send an new invoice to customer after i save and send it tells me it has been paid but I have not sent it

I'll help you check why it shows as paid, Accounts99.

It could be your customer has an unapplied payment/credit note, and the feature to automatically apply credits is turned on. 

First, let's check if the feature is turned on. Here's how:

1. Click the Gear icon, then select Account and Settings.
2. Go to the Advanced tab.
3. Click the Pencil icon in the Automation row.
4. Verify if the Automatically apply credits box is checked.

After checking, let's open the invoice and check if an unapplied payment/credit note is linked. Here's how:

1. Open the invoice.
2. Under Payment Status, click the payment link, then the date link.
3. On the Receive Payment page, you can see the Unapplied payment or credit note under Credits.

Here's how it looks like:

If anything comes up, please let us know. We're right here to help you.