Yes.... the sales people will tell you about the credit and it sounds really good especially if you were counting on that amount to help with the down payment ... however since they cannot see your return or possibly know how the credit will actually effect you they cannot promise you anything.
Review the form 1040 page 2 lines 47 - 56 ... and especially line 53 & the credit form 5695 ... to see how that affected your return.
If you have filed the 2017 tax return you will have to amend the return to add the credit. See this TurboTax support FAQ for amending a 2017 tax return originally completed and filed using TurboTax (online or desktop) - https://ttlc.intuit.com/questions/4252298-how-do-i-amend-a-2017-return-in-turbotax
To enter Home Energy Credits -
- Click on Federal Taxes (Personal using Home and Business)
- Click on Deductions and Credit
- Click on I'll choose what I work on (if shown)
- Under Your Home
- On Home Energy Credits, click the start or update button
Or enter home energy improvement in the Search box located in the upper right of the program screen. Click on Jump to home energy improvement
Did they guaranty that?