As a leading catalog and online retailer of party supplies and costumes, our goal is simple; to offer high quality products that are fun for the whole family! Read on to learn more about our programs: offers over 200 birthday party themes and exclusive party themes you can't find anywhere else! With hundreds of party planning tips and advice, Birthday Express makes planning the perfect kid’s birthday party a piece of cake! has been a leading online and catalog retailer since 2003. Costume Express focuses on providing costumes and dress-up products to families, including over 10,000 costumes for kids, adults and even the dog!
Good affiliate partners include sites focused on party planning, Halloween costumes, décor, fashion, lifestyle, shopping, gifts, weddings, creativity, crafts, kids and family.

Highlights of the Birthday Express & Costume Express Affiliate Program:
  • Commission: 13% content, 12% loyalty, 5% coupon
  • Cookie: 60 days
  • Large selection of text links and banners
  • Product datafeed for each store with thousands of products updated daily
  • $5 Affiliate Referrals: Invite your blogging friends to join the Birthday Express & Costume Express affiliate program and earn $5 for each friend who's approved!
  • Dedicated affiliate management team from Acceleration Partners
  • Newsletters with program updates, promotions, contests and incentive opportunities
** Become an affiliate partner with our sister company, BuyCostumes - click here to join! **

If you have any questions about our program, please feel free to send us an email at


The Birthday Express & Costume Express Affiliate Team

Please Note: Due to affiliate nexus tax laws, we do not work with affiliates that reside in Arkansas, Connecticut, Georgia, Illinois, Kansas, Maine, Minnesota, Missouri, New Jersey, North Carolina, Ohio, Pennsylvania, Rhode Island and Vermont.

Birthday Express & Costume Express has teamed up with ShareASale to offer a simple affiliate signup process, so that you can begin earning commission payments from your website as soon as possible.

If you already have a ShareASale username and password, please login here, and you will be added to our program.

Username:      Password:

Otherwise, if you are new to ShareASale, please fill out the form below in order to join:

The process to setup an Affiliate Account is a simple 5-step process that begins with the selection of your username and password. In the future, you will use these selected words to access your Affiliate Account.

Create your Username:
Usernames may consist of the following characters only: a-z, A-Z, 0-9, -, _, @, .

Create your Password:

Confirm Password:

The second piece of information that we need from you in Step 1 is the country of your residence. This is the country where you actually live, and where checks will be sent to you.

What country do you live in?

Please Note: Membership applications are reviewed by our staff for acceptance, and you will typically receive an email from us within 24 hours from the time that you confirm your application (by confirmation email). Our Membership Review Team will review your site for the following things in order to accept you into our network:

  • Quality site design
  • Top-Level-Domain (i.e., (not required but recommended)
  • Website language (We only accept sites in English)
  • Prospective ability of your site to drive traffic to our Merchants
  • Disallowed sites include: Any illegal, porn, hate, etc... on your site, or on sites that you link to
  • Other misc. factors

Decisions made by ShareASale about membership applications are final, but you are free to re-apply if you wish in the future, should your application not be accepted. Please provide as much detail as possible when applying so that we can review your application accurately.

Affiliate Terms of Use