If you look at the Oregon form 40 instructions, page 14, it has you subtract the Economic stimulus payments from your Federal Tax Liability. The original version of the TurboTax OR return prior to Feb 17th didn't subtract the stimulus payments and just used the Federal Tax Liability amount copied directly from the Federal 1040.
Subtracting the stimulus payment amount from the Federal Tax Liability will make a difference for people who received a Stimulus payment and had a Federal Tax Liability that was greater than $0 and less than $7,050 (the maximum Oregon will let you deduct this year). Well, that is simplifying things a bit since the deduction amount depends on income and filing status, but the take-home message is that the update will reduce the Oregon refund for a lot of people, but not for everyone.
