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Should We Allow Costumes at Our Halloween Party?

Posted by Giuliana Gabriel, Senior HR Compliance Director on September 24, 2026

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With Halloween right around the corner, you might be looking for fun ways to boost employee morale, like hosting a Halloween-inspired potluck or pumpkin-decorating contest, or letting employees place candy bowls outside their cubicles for a workplace trick-or-treat.

One question that inevitably crosses employers’ minds is: should we allow costumes at our Halloween party? While costumes may enhance the fun, they also invite the risk of employees choosing provocative attire or insensitive outfits that may even lead to a harassment complaint.

The simplest approach is to not allow costumes in the workplace. There are plenty of other ways to show festivity and boost morale, without having to worry about an employee’s lack of good judgment.

However, many employees really enjoy the opportunity to dress up for this holiday. Employers can create guidelines to ensure everyone has a delightfully spooky (and work-appropriate) time. Here are our tips:

  1. Remind employees that your company’s dress code policy still applies and attach a copy of your policy.
  2. Explicitly state that sexually provocative costumes, costumes mocking a protected group (i.e., race, nationality, religion, disability, etc.), or costumes that are overly gruesome are strictly prohibited.
  3. It is also a good idea to ban political costumes (i.e., Presidents or political figures), but be sure your ban applies neutrally to all political parties, including both Democrat and Republican figures.
  4. You may require (or give employees the option) to get approval on their Halloween costume from HR or management prior to the party.
  5. If employees will be performing work before or after the holiday party, remind them that costumes cannot pose a safety hazard or they need to be removed.
  6. Direct employees that if they are dressed inappropriately, they may be sent home to change and may be disciplined for violating your dress code policy.

One last consideration is that not everyone may be comfortable dressing up in costume at work, including for religious reasons. Make sure employees know that costumes are voluntary, and it is best to make Halloween festivities optional as well. Remind employees to contact HR or management if they would like to request an accommodation.

When handled thoughtfully, there is nothing wrong with hosting a little workplace Monster Mash!