Redemptions with Leading Hotels of the World require taxes and fees — here's how to know how much you need to pay

Last month, American Express added a new transfer partner: The Leading Hotels of the World's Leaders Club loyalty program.You can now transfer American Express Membership Rewards points to your Leaders Club account at a 4:1 ratio. And while this may look like a less-than-rewarding option on paper, it actually may represent the single best use of Amex points for hotel stays — given that redemptions through Leaders Club can start below 3,000 points per night.Unfortunately, there is a small catch with these awards: You're required to pay any applicable taxes and fees.Thankfully, there's an easy way to check on this before you actually transfer your Amex points.Here's what you need to know about this exciting new option.How to find taxes and fees with Leading Hotels of the WorldIf you're considering transferring your Amex points to Leaders Club, you'll want to know about any out-of-pocket expenses you'll incur. And unfortunately, this won't display if you have an insufficient balance of points.For example, here's a four-night stay at the Ritz Paris next summer for 40,251 points per night.LEADING HOTELS OF THE WORLDAs you can see, I can't select the redemption rate since I don't have en...