billionaire investor warren buffett deny monday allegation republican presidential candidate donald trump like trump take massive deduction allow avoid federal income tax buffett say pay 1.85 million income tax 2015 return previous years similar respect contributions deductions tax rat buffett say audit internal revenue service problem release tax information trump refuse release tax return cite ongoing audit irs pay federal income tax every year since 1944 13 buffett say statement add slow starter owe tax year buffett rank world third-richest person forbes magazine say copy 72 return none use carryforward respond oct. new york time story trump acknowledge presidential-candidates debate sunday use investment losses avoid pay tax trump repeatedly say take advantage tax provision use wealthy people support clinton absolutely use warren buffett ... say time report trump declare loss 916 million 1995 large could legally avoid pay federal income tax 18 years buffett chairman berkshire hathaway inc brka.n say 2015 tax return show adjust gross income 11,563,931 deductions total 5,477,694 allowable charitable contributions 3,469,179 36,037 remainder state income tax say total charitable contributions make year 2,858,057,970 2.85 billion take deductions never tax law properly limit charitable deductions buffett say buffett say problem release tax information audit neither would mr trump least would legal problem buffett hit back trump tax comment