Go to Sell on eBay under Channels.
Click on the Profiles & Settings tab on the left and choose eBay Accounts.
Then click on either of the Add eBay Account buttons.
You will be directed to eBay.
Enter your eBay User ID and Password and click the Sign in button.
Click on the I agree button to finish linking your eBay ID to Highwire.
Complete the Accepted Payments tab by checking each of the payment methods you accept.
Click on the Buyer Requirements tab.
Update your Buyer Requirements preferences.
Click on the Sales Tax tab.
Choose the Sales Tax option you would like to use for your listings.
Click the Checkout Instructions tab.
Enter the text you would like displayed. This section does not allow HTML.
Once complete, click the Save eBay Account button.
To add another eBay account, repeat these steps.