Updated 20 February 2021

Costume Box Discount Codes 2021

22 working Costume Box coupon codes, discounts & deals

10%
OFF
Code

Score 10% off your next order with this Costume Box discount code

We've opened the store in a new tab or window, for you to complete your shopping. If  you're using a promo code, enter the code THANKYOU when you get to the checkout. If the store page did not open, you can click here to shop
Used 54 times this week
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$10
OFF
Deal

Get $10 off when you sign up for Costume Box Rewards

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
Used 29 times this week
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$15
OFF
Deal

Score $15 off your next order when you sign up for emails at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
Used 13 times this week
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$10
OFF
Deal

Rewards Offer: Get $10 off on your birthday when you sign up at Costume Box

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FREE
POINTS
Deal

Become a Costume Box rewards member to earn 1 Fun Point for every $1 you spend

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FREE
SHIPPING
Free Shipping

Enjoy free express shipping on orders over $99 at Costume Box

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Expiry: 2 years from now
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50%
OFF
Deal

Shop the Costume Box clearance for up to 50% off

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Expiry: 4 years from now
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30%
OFF
Deal

Shop men's costumes on sale for up to 30% off in the massive Costume Box sale

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50%
OFF
Deal

New Year Clearance: Get up to 50% off Costume Box costumes for the entire family

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FROM
$5
Deal

Browse gifts, puzzles, games and more at Costume Box from $5

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50%
OFF
Deal

Find costumes for men for 20-50% off at the massive Costume Box sale

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FROM
$3
Deal

DC Comics: Find Harley Quinn, Batman, and Superman costumes and props from $3 at Costume Box

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FROM
$40
Deal

Shop Star Wars costumes starting from $40 at Costume Box

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Expiry: 7 months from now
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FROM
$13
Deal

Browse costume wigs starting from $13 at Costume Box

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Expiry: 1 year from now
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FROM
$10
Deal

Throw a Harry Potter themed party with costumes and decor from $10 at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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FROM
$1.99
Deal

Grab birthday party supplies, party favours, balloons and more from $1.99 at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
Expiry: 10 months from now
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FROM
$5
Deal

Host a summer party with Costume Box decor and party supplies from $5

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FROM
$6.99
Deal

Find Mardi Gras costumes and decor from $6.99 at Costume Box

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Expiry: 1 week from now
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FROM
$5
Deal

Grab St Patricks Day costumes and accessories from $5 at Costume Box

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FROM
$2
Deal

Purchase baby shower supplies for as low as $2 at Costume Box

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Expiry: 1 month from now
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FROM
$4.99
Deal

Shop plus size costumes and accessories starting from $4.99 at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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FROM
$4
Deal

Find 80s costumes and accessories from $4 at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
Expiry: 8 months from now
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Expired Costume Box Coupon Codes

$10
Code

Take $10 off your next order with this Costume Box discount code

We've opened the store in a new tab or window, for you to complete your shopping. If  you're using a promo code, enter the code THANKYOU when you get to the checkout. If the store page did not open, you can click here to shop
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20%
OFF
Code

Black Friday Offer - Use this Costume Box promo code for 20% off adult costumes

We've opened the store in a new tab or window, for you to complete your shopping. If  you're using a promo code, enter the code BFA20 when you get to the checkout. If the store page did not open, you can click here to shop
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25%
OFF
Code

Enter this Costume Box promo code for 25% off Harry Potter costumes

We've opened the store in a new tab or window, for you to complete your shopping. If  you're using a promo code, enter the code HPFRENZY when you get to the checkout. If the store page did not open, you can click here to shop
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25%
OFF
Code

Last Chance: Use this Costume Box promo code for 25% off Harry Potter costumes

We've opened the store in a new tab or window, for you to complete your shopping. If  you're using a promo code, enter the code HP25NOW when you get to the checkout. If the store page did not open, you can click here to shop
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25%
OFF
Code

Enjoy 25% off Oktoberfest costumes with this Costume Box promo code

We've opened the store in a new tab or window, for you to complete your shopping. If  you're using a promo code, enter the code YODEL25 when you get to the checkout. If the store page did not open, you can click here to shop
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FROM
$4.99
Deal

Find Valentine's Day decorations from $4.99 at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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50%
OFF
Deal

Boxing Day Sale: Shop the best women's costumes for 20-50% off at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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60%
OFF
Deal

Grab kids' costumes for up to 60% off at the Costume Box Boxing Day sale

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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75%
OFF
Deal

Early Boxing Day Deals: Get up to to 75% off sitewide at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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FROM
$5.99
Deal

Shop last minute Christmas decor starting from $5.99 at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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20%
OFF
Deal

Get 20% off these Christmas lawn inflatables at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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FROM
$4
Deal

Find Christmas decor and party accessories from $4 at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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FROM
$34
Deal

Shop at Costume Box to find OppoSuits starting as low as $34

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FROM
$29.99
Deal

Find Santa suits at Costume Box starting from $29.99

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$15
OFF
Newsletter Discount

Take $15 off your next order when you sign up with an email at Costume Box

We've opened the store in a new tab or window. There's no promo code needed to get this offer  - just click through and shop!
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About Costume Box 

Costume Box was launched in 1998 by founders who were passionate about customer service, a customer service that is rated excellent on Costume Box reviews. Since then, it has supplied more than three million costumes to customers around the globe. Whether you're putting on a theatrical production or heading off to a fancy dress party, shop using our Costume Box discount codes.

Costume Box Welcome Discount

Subscribe to the Costume Box newsletter to receive a Costume Box Welcome Discount and $15 off all orders over $100. Save money on dressing up with our Costume Box coupons and Costume Box discount codes.

Costume Box Rewards Membership

Rewards members earn points to turn into vouchers every time they shop. For every $20 spent, a FUN dollar is earnt to spend online. Save more with our Costume Box discounts.  If you're not sure Costume Box is for you, then check out the positive Costume Box reviews on trusted sites.

Costume Box Afterpay

Spread your shopping budget with Costume Box afterpay, making payments in four instalments over eight weeks. You must be over 18, live in Australia, and hold a valid debit or credit card. Save money by shopping with our Costume Box promo codes.

Costume Box Sales

If you want to have more fun for less money, shop in the Costume Box sales. Plan ahead and buy Costume Box for Halloween costumes and Christmas outfits out of season and save extra dollars. Get even more value for money by using our Costume Box coupon codes.

Costume Box Customer Service

On the help page you'll find full Costume Box contact details with phone numbers as well as an extensive FAQ page. You can also search for Costume Box locations. Don't forget to shop with our Costume Box coupon codes.

Costume Box Returns Policy

If you're not totally happy with your purchases, then the Costume Box returns policy gives a generous 100 days to make free returns.