De or het trustrekening?

The correct Dutch article is:

de trustrekening

Rule Words ending in -ing: almost always de. See the rule

How to use trustrekening

the trustrekeningde trustrekening
this trustrekeningdeze trustrekening
that trustrekeningdie trustrekening
our trustrekeningonze trustrekening
your trustrekeningjouw trustrekening
every trustrekeningelke trustrekening
which trustrekening?welke trustrekening?
a big trustrekening / the big trustrekeningeen grote trustrekening, de grote trustrekening