I reached out to fueleconomy.gov to get more clarification about the Ioniq 5 qualifying for the $7,500 credit. This was the conversation:

Me- Hello, I saw earlier this year that the 2025 Hyundai Ioniq 5 qualified for the $7,500 EV tax credit, but it is now missing from the website. Can you clarify the status of the availability of the credit? If it’s not currently qualified, will it be added to the list of qualified vehicles later this year? I put down a deposit on an Ioniq 5 when the vehicle was listed. It will be delivered to the dealer next week and I need to know if the car qualifies because I included the credit into my budget for the car.

Their response-

Thank you for contacting us. The IRS is responsible for working with the manufacturers to certify vehicles as eligible for the federal tax credits. Once a model is certified, the IRS notifies us that we should list it on fueleconomy.gov. In line with this process, the IRS notified us that the 2025 Hyundai Ioniq 5 was certified as eligible and should be listed, so it was added to our website. A few days after it was listed, the IRS instructed us to take it back down to satisfy a request from Hyundai. We are not involved in those discussions and only list/delist vehicles based on IRS guidance. However, it is our understanding that Hyundai requested its removal until the 2025 model year vehicles are available at dealerships. I think having it listed early may have caused confusion and problems for their dealers and public relations department. As we understand it, Hyundai will notify the IRS when they are ready to have it re-listed. This is our understanding, but for definitive information, you would have to contact Hyundai. We are aware that 2025 Ioniq 5’s are arriving at dealerships now and some deliveries have already occurred but we cannot add it to our website until instructed to do so by IRS.

Also, bear in mind that all transactions for the federal tax credits must be processed through the IRS Energy Credits Online dealer portal so this IRS system is the final arbiter of vehicle eligibility. If a dealer enters a VIN that is recognized by the IRS dealer portal, then it will be eligible regardless of whether it is listed on fueleconomy.gov or not. Conversely, just because a model is listed as eligible doesn’t mean that there is a guarantee that it will be accepted by the IRS since eligibility is determined at the VIN level. This is why every model listed on our website says to “Check w/dealer” and there is a note at the top of the table to this effect. We do not have access to any of the IRS systems so only registered dealers can check eligibility for a specific VIN.

I hope this helps.