How do I claim energystar on my return?

This credit expired in 2016.

If your energy-efficient central air conditioning system qualifies for an energy credit, you'll enter it under Tell Us How Much You Paid for Energy-Saving Improvements as Energy-Efficient Building Property. (Click the screenshot below to enlarge it for reference.)

To enter your energy-efficient central AC:

• Open (continue) your return in TurboTax Online.
• Click My Account (top right of your screen).
• Select Tools.
• In the pop-up window, select Topic Search.
• In the search bar, type 5695.
• In the results box, highlight 5695, residential energy credit, then click GO.
• Follow the onscreen instructions to complete this section. Be sure to click on a Learn more link if you have any questions. After you enter the cost of your central air-conditioning system, TurboTax will determine if you qualify for a Nonbusiness Energy Property Credit.  

Note: If using the TurboTax CD/Download software, you'll use the Find function (instead of "My Account") to search for the topic.

The Nonbusiness Energy Property Credit is limited and may be reduced if you claimed a credit in a prior year. See IRS Instructions for Form 5695, Residential Energy Credits for more information.

The FAQ below has links to sites that will help you determine if your energy-efficient property qualifies for an energy credit. https://ttlc.intuit.com/replies/3300639

[Edited 02.05.2018 11:42AM PST]