Are you new to the game and you want to earn a lot of money but you don't know how? This tutorial is great for you because its the best way to earn money in gta V. (finishing the story is recommended)

1. Save the game in the character's you're playing bed
2. Buy a lot of stocks on the internet of the company, that has like -10% of stock value
3. Sleep a few nights by going sleep, but DON'T save the game when you do this, click escape when you have the save menu
4. Check if you're on profit, if yes - sell the stocks and save the game. If not - load the game to state from ealier and do the same till you're on profit

This method is the most useful if you have already done the Franklin's bounty mission from Lester. If you still have them, concider using this tutorial: https://www.youtube.com/watch?v=diKCeQAt13I