In case you haven’t heard, 40 is the new 30, which means turning 40 means you are still HOT and sexy!

So, what should one wear to a 40^th birthday party?

Girl…wear whatever you want! 😊

Seriously though, 40^th birthday party outfits call for extra glam and sparkles.

Think sparkly dresses, black and gold birthday outfits, classy cocktail dresses, designer jumpsuits, and classy black cocktail dresses.

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What to Wear to a 40^th Birthday Party

This fashion guide is all about what to wear to a 40th birthday party.

You'll find ideas on what to wear as well as easy-to-copy 40^th birthday party outfits.

40^th Birthday Party Outfits

Continue scrolling to get ideas on what to wear to a 40^th birthday party.

1. Sequin Shirt with Black Leggings

Copy this 40^th Birthday Party Outfit: Sparkly Shirt | Black Leggings

You can't go wrong with black leggings and a sexy one-shoulder shirt for a 40th birthday party outfit.

2. Little Black Dress with Gold Heels

View on Lulus

View on Lulus

3. Super Sexy Black Dress with Large Bow 

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Any mini dress that makes you stand out is perfect for wearing to a 40th birthday! 

4. Emerald Green Jumpsuit and Heels

View on Lulus

5. Black Jumpsuit for 40th Birthday Party Dinner

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6. Black Sparkly Outfit with a Train

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7. Sexy Black Jacket Dress for Drinks at the Bar 

View on REVOLVE

This dress has style and sophistication with the perfect amount of sexiness. 😉

8. Pink Tulle Skirt and Sequin Shirt

This 40th birthday party outfit is so cute!

Get this Cute 40th Birthday Party Outfit: Pink Tulle Skirt | Gold Heels | Sequin Top | Earrings

9. Gold Glitter Dress with Long Sleeves and Heels

View on Amazon

10. Classy Wrap Dress with a Plunging Neckline and Heels

View on REVOLVE

This sophisticated dress is perfect for a 40^th birthday party outfit.

It’s classy and sexy.

11. Shift Dress with Cold Shoulder Cutouts for Sexy and Comfy 40th Birthday Party Outfit

View on Lulus

40^th Birthday Party Photo Shoot Ideas

Below are a few ideas for a 40^th birthday photoshoot as well!

View on Amazon

View on Amazon

FAQs about 40^th Birthday Parties

What color should I wear to a 40^th birthday party?

You should wear whatever color is most flattering on you!

Many women opt to wear black, red, blue, and emerald green to a 40^th birthday party.

If you have darker skin, red and yellow can be great for wearing to a 40^th birthday party.

If you have lighter skin, black, blue, or white may look great on you.

How do I look hot at a 40^th birthday party?

Get your nails done, wear clothing that fits you well, and wear shimmery makeup that makes your skin glow.

You may want to check out these tips to look younger in your 40s too.

What should I wear to a 40^th birthday party?

You can’t go wrong with a classy jumpsuit, a cocktail dress (midi length dress), or flattering jeans with a blouse for a 40^th birthday party.

Rich fabrics like silk and velvet are also perfect for wearing to a 40^th birthday party. And if you have a classy leather jacket, go ahead, and wear it. 😊

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Christina Marie from Chic Lifestyle (offering beauty product reviews, very easy makeup tips, and affordable outfit ideas for women)