2 days left: Earn 20,000 points by referring friends to the Amex Business Platinum
Update: Some offers mentioned below are no longer available. View the current offers here.
While credit card welcome bonuses still rank as the best way to earn a meaningful number of points in a short amount of time, there are a few other high-yield methods as well. One of these is by referring your friends to sign up for a new credit card, though not every card offers a referral bonus.
Doctor of Credit is reporting that through Sept. 25, 2019, you can get a 20,000 Membership Rewards point bonus when referring a friend to The Business Platinum Card® from American Express (worth $400 based on TPG's valuations). Meanwhile, your friend will be eligible for the limited-time, 100,000-point welcome bonus, where new applicants can earn 50,000 points after spending $10,000 in the first three months and an additional 50,000 points after spending $25,000 total in the first three months.
Amex allows you to earn up to 55,000 points per calendar year for each card referral, meaning you could refer up to three friends for this deal to max out your yearly allowance. While most issuers only let you refer from a specific card to that same card (i.e., you refer a friend from your Chase Sapphire Preferred and they get an application link to apply for the Chase Sapphire Preferred), Amex lets you refer from one card to many other cards, even in different families.
This means that if your friends want to apply for any Amex cards, you should generate a referral link for them from your Business Platinum to get the maximum referral bonus. They can then navigate around the webpage to find welcome offers for other business cards, or even personal cards. This would be a great time to stack a great referral bonus for you with helping your friend apply for a card like The Blue Business® Plus Credit Card from American Express. While this card normally doesn't offer any public welcome bonus, it may be possible to get either 10,000 or 20,000 points when applying via a referral link.