How do you start rich in sims 4?

Type in motherlode to get 50,000 simoleons.

OR

Type this:

testingcheatsenabled true

then type:

familyfunds "family name" number

This will set the family you choose to whatever amount you choose. You must place the family in a home first tho so if you want your Created sims to be rich you either have to place them in a cheap home or lot then type in the cheat.