UPDATE: Amazon has ended the Add-On Items program.
As of October 2019, Vox noted that Amazon had removed several barriers that affected shoppers wanting to purchase items under $10 on their own. These products used to be branded as "add-on items" and required shoppers to spend at least $25 in order to have them delivered. Now, Prime members can shop products like this and receive them the next day with free one-day shipping.
What Are Amazon Add-On Items?
Add-on items are smaller products offered at very affordable prices — usually under $10. But there's a catch: you'll need to spend a minimum of $25 to have them shipped to you. They're marked with a blue "Add-on item" banner.
How Do Add-On Items Work for Prime Members?
Prime members will receive Prime shipping benefits for Add-on items when they order more than $25 worth of Prime-eligible products. They must be shipped by Amazon; Prime-eligible goods shipped by other sellers don't count towards this minimum.
2 Ways to Meet That $25 Threshold
1. Mix Add-on items and regular items in your order
If you're hunting for the cheapest item on Amazon, there's a good chance it could be an Add-on.
Trying to meet that $25 minimum with nothing but Add-on items could take more time than you want to give. And you may end up spending more than you intended! Instead, complete your order with Prime-eligible products to meet the minimum.
2. Plan your orders ahead of time
If you want to order an Add-on item, but don't have an immediate need for it, consider creating an Add-on wish list.
You can also opt to leave the Add-on item in your cart until you're ready to complete a big order. Just be sure to review the cart before you checkout! The Add-on you wanted may go up in price, or be out of stock.