I wonder if that's really the case. It's also possible that, if you kept 10% and returned 90%, you'd still have to pay tax on the 100% (that is, the 90% you ret

I wonder if that's really the case. It's also possible that, if you kept 10% and returned 90%, you'd still have to pay tax on the 100% (that is, the 90% you returned might not be deductible).