If you are close enough to the threshold for qualifying for
the Saver’s Credit that including a deductible
Traditional IRA contribution would lower your income below the threshold,
then yes, you could then qualify for the Saver’s Credit.
You can go through the IRA Contribution section of your
return to see how things could change if you were to make the contribution to a
Traditional IRA and to determine what amount would optimize your refund if the
Saver’s Credit became a factor.
Take a look at the TurboTax article using the link here in
order to see the income limits for the Saver’s Credit: https://turbotax.intuit.com/tax-tools/tax-tips/Taxes-101/What-Is-The-Savers-Credit-/INF15617.html