De or het geldbesteding?

The correct Dutch article is:

de geldbesteding

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

How to use geldbesteding

the geldbestedingde geldbesteding
this geldbestedingdeze geldbesteding
that geldbestedingdie geldbesteding
our geldbestedingonze geldbesteding
your geldbestedingjouw geldbesteding
every geldbestedingelke geldbesteding
which geldbesteding?welke geldbesteding?
a big geldbesteding / the big geldbestedingeen grote geldbesteding, de grote geldbesteding