Heads up, awardtrail readers! American Express is back at it again, sending out targeted offers to open a new Amex High Yield Savings account with a sweet bonus. Keep an eye on your email (especially if you're an Amex cardholder) and check your Amex Offers when you log in, because you might find an offer for a bonus of up to $500!

The most recent offers are for a $300-$500 bonus when you deposit $25,000 into a new Amex Savings account and keep it there for about 90 days. While that's a hefty chunk of change to park, the bonus combined with Amex's already competitive interest rates could make it a worthwhile deal if you have the funds available. This is essentially free money, but remember bank bonuses are taxable, and you'll receive a 1099 form.

This is a targeted offer, so not everyone will get it. The terms state that you must be new to Amex Savings, have received the offer directly from Amex, and open the account using the email address the offer was sent to. Also, make sure to note the deposit deadline and holding period to ensure you snag that bonus! Keep checking back, as these offers tend to reappear periodically.