Thanks for the possible answer to how they got the depreciation. I don't think this other guy was brainy enough to think about salvage value... This wasn't really my issue, however... In several cases tax preparers with other tax software have either manually (in Excel for instance)  or from other formulas within the deprecation programs to come up with depreciation and accumulated depreciation. I am trying to drive a square peg though a round hole... HOW do I get Pro Series to allow me to use an unconventional method or life in the depreciation worksheets? Review my example and try to enter their data and their suggested current year deprecation, and when you have fixed the error messages on the bottom, forcing you to 27 1/2 years (and not the 30 SL in other accountant's workpapers) I CANNOT get the 30 SL to appear in the current or history files...