We just received an IRS letter for miscalculation of charitable deductions on a 2021 Form 1120.  Taxable Income computed on the Contributions Limitation/Carryover Wks line 8 is $113.817. 10% of that is $11,382. 25% of line 8 should be $28,454. ProSeries is getting $25,609 which is 25% of $102,435 ($113,817-11,382).  I'm not sure why it is doing this.  The total contribution listed on line 10c is $36,991 ($11,382+25,609).  The IRS letter shows that the deduction taken should have been $28,454 instead of $36,991 that ProSeries calculated.  I agree with the IRS letter. Has anyone else had this happen?  Did we miss checking a box or something? Any advice would be great so that we can avoid this in the future. Thank you.