  Numerical approaches to higher-order calculations often employ subtraction
terms, both for the real emission and the virtual corrections. These
subtraction terms have to be added back. In this paper we show that at NLO the
real subtraction terms, the virtual subtraction terms, the integral
representations of the field renormalisation constants and -- in the case of
initial-state partons -- the integral representation for the collinear
counterterm can be grouped together to give finite integrals, which can be
evaluated numerically. This is useful for an extension towards NNLO.
