Free shipping is one of the most enticing perks of online shopping, but it’s not always as straightforward as it seems. Retailers know that the promise of free shipping can be a powerful motivator, but there are often hidden costs or conditions that can eat into your savings if you’re not careful.

First, it’s important to understand that "free” shipping isn’t always free. Many retailers build the cost of shipping into the price of the item itself, or they set a minimum purchase threshold to qualify. For example, you might have to spend \$50 or more to unlock free shipping, which can tempt you to add extra items to your cart just to hit that number. This tactic can end up costing you more than if you had simply paid for standard shipping.

Another common trick is the use of "memberships” or subscription programs like Amazon Prime or Walmart+. While these services often offer free two-day or even same-day shipping, they come with annual or monthly fees that can add up over time. Be sure to calculate whether the savings on shipping outweigh the membership cost.

If you’re a frequent shopper, joining a loyalty program can also be a smart move. Many stores, like Target with its RedCard program or Best Buy’s Totaltech, offer free shipping as part of their membership benefits.

In short, while free shipping can be a great deal, it’s important to look beyond the headline and consider the true cost. A little math and a bit of planning can go a long way toward making sure you’re actually saving money.