https://www.gamespot.com/articles/free-gta-5-money-available-on-ps4-xbox-one-and-pc-/1100-6456826/

As it does occasionally, Rockstar is providing a welcome freebie to players of Grand Theft Auto V. Players will be able to get some free money in GTA Online for a limited time, and in a roundabout way, everything available for sale will be discounted.