You can do a spousal IRA and it is deductible if you are below the income limitations.
Here is an IRS link on the income limitation for destructibility: https://www.irs.gov/retirement-plans/plan-participant-employee/2018-ira-contribution-and-deduction-l...
The best way to do this is to directly to
Federal Taxes
Deductions and Credits.
I'll chose what I work on.
scroll down to Retirements and Investments
go to Traditional IRA and Roth IRA and make an entry and TurboTax will tell you immediately if it is deductible and the tax impact. You can always remove it if you decide not to do it. You have until 4-15-2019 to do it for 2018 tax year.
You actually might be able to do a IRA for each of you.
