Please don't worry over a 0.1% difference in what your TurboTax program calculated and what the IRS sent as a refund.
This is probably a difference in how the TurboTax program rounded a figure (or figures) and how the IRS software rounded the same figures.
It could also be the result of differences in how certain calculations are made, specifically the order in which figures are calculated.
With all the changes that have been made to both IRS and TurboTax software since January 1, there could be minor differences in how certain entries are getting calculated. A 0.1% difference is immaterial.
