HB2457--TAXDEDUCTIONS SPONSOR: Justus Currently,Missouritaxpayersareunabletodeductcertainresearch andexperimentation expendituresfromtheiradjustedgrossincome fortaxpurposes. Thislimitationisaresultofthefederal"Tax CutsandJobsAct"of2017. Thisbillde-couplesMissourifromtheprovisionsofthefederal law,andallowstaxpayerstodeductspecifiedresearchand experimentalexpendituresfromtheirfederaladjustedgrossincome, beginningwiththe2022taxyear.