LocalizeRingForHomalg, localize commutative rings at maximal ideals. The objective of this software presentation is to demonstrate a means of homological computation of finitely presented modules over a commutative ring $R$ localized at a maximal ideal $m$. This can be achieved by a reduction of the problem of solving linear systems over $R_{m}$ to the same problem over $R$. An implementation in the GAP-package LocalizeRingForHomalg exists as a part of the homalg project.