Paypal invoice question

If im shipping something out and im paid via invoice, will my funds be immediately released and available to use or do i have to ship it out first and then provide a tracking #
Trying to sell my pc online.

 

Think of the invoice function as an easy way to get payment directed to them (not accidentally sent to the wrong place) - and it also enables the person paying for goods to do so even if they do not have a PayPal account. This should have no bearing over when PayPal releases your funds.

If you are not a frequent seller using PayPal, you'll probably find that your funds are made available up to 21 days after they are received. If you ARE a regular seller/have completed many undisputed transactions, you can count on the funds being available soon if not immediately.