Anything to declare is the question you will be asked. I don’t think I have ever said yes... as I never brought anything back. But I assume as long as you don’t lie there will be paperwork to fill out and money to be paid.
I sent my bicycle to Canada once (wrong way for you). The bicycle shop got a bill from Canadian customs for 35% the value of the bike... it took a lot of paperwork and affidavits to show I owned it... sent it there and rode it out of the country.
Personally, I would send it back and let FedEx or the company act as exporter so you don't end up with the paper work.
Personally, I don't lie to the government or anyone else for that matter.