The Kardashian sisters sure know means to get richer by the day.

Kim, Kourtney and Khloe are said to be currently celebrating after clinching $10 million in a legal war over a cosmetics line.

According to TMZ, the sisters emerged victorious over Hillair Capital Management which had sued them in 2016.

Hillair claimed the sisters didn't hold up their end of a licensing deal ... after it sunk $10 million into a "Kardashian Beauty" line with Haven.

The Kardashian sisters however denied their claims, insisting they had nothing to do with "Kardashian Beauty" -- and the case ended up in arbitration.

In the docs, obtained by TMZ, a 3 judge panel completely rejected Hillair's claims and ordered the company to pay Kim, Kourtney and Khloe nearly $7.4 mil. Plus an additional $3.2 million in interest.

The Kardashians have filed the arbitration decision in L.A. Superior Court to get the $10 mil award locked in, but their lawyers expect Hillair to challenge the decision in court.