(Image Source: https://www.groupon.com/deals/po...)Log in to your Groupon account.2. Click on the drop down arrow besides your name (as shown in the screenshot)3. Once your click on the drop down arrow, beside your name, you would now click on u2018My Grouponsu2019. (as shown in the screenshot)4. Now you would see the list of Groupons you have and on the left side of every Groupon you would see the expiration date for that particular Groupon.(as shown in the screenshot)Note: Instructions mentioned in this answer would help if you are using the http://www.groupon.com website to check if your Group code is still valid or not.