  I present a calculation of higher-order radiative corrections to charged
Higgs production in association with a top quark via the process bg -> tH-.
Results for charged Higgs production at the LHC are presented, including the
dependence of the cross section on the charged Higgs mass, the top quark mass,
the factorization and renormalization scales, and tan beta. I show that the
theoretical prediction for the cross section is significantly enhanced and is
greatly stabilized when the higher-order corrections are included.
