De or het looninlevering?

The correct Dutch article is:

de looninlevering

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

How to use looninlevering

the looninleveringde looninlevering
this looninleveringdeze looninlevering
that looninleveringdie looninlevering
our looninleveringonze looninlevering
your looninleveringjouw looninlevering
every looninleveringelke looninlevering
which looninlevering?welke looninlevering?
a big looninlevering / the big looninleveringeen grote looninlevering, de grote looninlevering