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*2023* What to really wear to 40th & 50 BIRTHDAY party? 18 classy outfits!

*2023* What to really wear to 40th & 50 BIRTHDAY party? 18 classy outfits!

Regardless of your age, 30,40, or 50, spoiling yourself with a fancy dress that makes you feel like a 10/10 at your birthday party is a no-brainer.

You know, girls just wanna have fun and a birthday party is the best excuse for you to get dressed up and feel and look the best.

That said, many ladies wonder: What to wear to 40th and 50th birthday parties?

Well, guess what, you can wear whatever you want!

Age is just a number and I’ve seen many ladies exploring new clothing styles in their 40s and 50s.

But if you want to dress for your age and appear to be classy, polished, and tasteful, I’ve gathered 28 birthday dress-up outfit ideas from dressy to casual.

I’m sure you will love it! Keep on reading!

1. Simple black dress for the 40th & 50th birthday party

First thing first, how can we not mention an iconic, universally-forgiving black dress?

black dress 40th 50th birthday party
Source: Pinterest

You just can’t go wrong with this. From a casual birthday house party to a fancy birthday dinner, it just always looks appropriate.

In the age of 40s and 50s, many ladies prefer looking classy in a subtle way at the birthday party.

So here’s the sweet mash-up for you: A midi black dress, a long dainty necklace, and an embellished clutch for an effortlessly classy style.

But that said, some black dresses can look … really boring. So below is my handpick from Amazon.

what to wear to 40th & 50 birthday party
Get this classy black dress on Amazon!

Featuring the one-shoulder and loose-cutting design for the upper body, this dress is here to fake an hourglass body for you without looking trying too hard.


2. Embroidered Sheath Dress for 40th & 50th birthday dinner

For the birthday girl out there, you may want something fancy but not over the top for your birthday dinner. I got you.

As a comfy choice, a sheath dress just works wonders to help you stay classy and polished. They are form-fitting but sophisticated at the same time.

If you have a budget to spoil yourself with a bead-embroidered sheath dress, this one below is just irresistibly glamorous.

We all know how a high-quality dress can make us feel like a 10/10. It’s so worth it.

 bead-embroidered sheath dress for birthday party 50
Get this gorgeous dress on Amazon!

This beaded cocktail dress just gives out a touch of 1920s vibes.

If you want a dash of glitter to your birthday look but without going over the top, this is the one ♡

BEADED DRESS FOR 40 & 50 birthday party
Get on Amazon!

3. Pick elegant necklines for formal 40th & 50th birthday party

If your birthday party calls for a formal dressy look, this is a great chance for you to have fun with different kinds of elegant necklines.

It’s not uncommon to see ladies wearing darling vintage dresses and Mary Janes shoes to celebrate their big day. The best part? You are bound to receive loads of compliments.

Below are the two best sellers from Amazon. I’ve checked the reviews and they truly fit all the sizes and with all different colors! Enjoy!

what to wear to formal 40th & 50th birthday party
Get on Amazon!

The double-breasted design is just so posh and classy. Plus, the 3/4 sleeves can always make you appear to be taller than the full long sleeve!

This dress just does all the tricks for you♡

If you prefer short sleeves and a round neck, this dress is ultra-form-fitting and comfortable. The fabric is definitely thick enough to conceal the belly.

what to wear to formal 40th & 50th birthday party
Get on Amazon!

4. Wear a Peplum dress for the 40s & 50s birthday dinner

My mum is now in her 50s and at her every birthday dinner party, she will wear a peplum dress like a uniform.

Indeed, they are just … unbeatable when it comes to hiding the food babies.

Featuring the extra stripe of fabric around the waist, it just conceals the belly instantly. Plus, it just entices the high waist area and makes you look sleek and put together.

So again, my two handpicks from Amazon. Enjoy!

what to wear to a 40s and 50s birthday dinner
  Shop on Amazon!

Every girl needs a vintage peplum dress in her life, it just looks so posh and refined.

5. Stunning fishtail dress for your husband’s 40th birthday

Not everyone can pull off an ultra-feminine fishtail dress, but guess what, a lady in her 40s and 50s certainly can bring the best in this piece.

classy black dress for 40th 50th birthday party
Source: Lillyskloset

Whether you wear this for your husband’s 40th birthday or your own girl pals gathering, the irresistible womanly vibes are sure to turn heads.

This dress below can fake you a great body.

In case you don’t know, the fishtail can elongate your legs even more. Try it!

what to wear to your husband’s 40th birthday
Get on Amazon!

6. What to wear to a 40th & 50th birthday party in winter

If your birthday party is on chilly days, this black pleated knit dress is everything and more. The gradient shade is PERFECT for a birthday party in the most sophisticated and fun way!

What to wear to a 40th & 50th birthday party in winter
Get on Amazon!

7. Velvet dress as another winter birthday party choice

To glam up at your birthday party, dress up in tasteful fabrics like lace, velvet, satin, chiffon, and silk to really level up your style. No more A-line cotton skater dress that looks like a sweet 16.

If you want a decent velvet dress, below is the one. To finish this look on a dressier end, add statement long earrings and a glittery clutch and you’ll never feel anything missing from your outfit.

What to wear to a 40th & 50th birthday party in winter
Get on Amazon!

8. A failproof mesh sleeve dress for 40th & 50th birthday celebration

If you are insecure about flappy arms like me, what about a belted mesh sleeve dress that can never go wrong?

 This stretchy, skin-touch midi dress below just looks like a high fashion piece. Check this out!

mesh sleeve dress for 40&50 birthday
Get on River Island!

This is so random… BUT

hey ladies, why not quickly do an affirmation and feel instantly better?

This new year, I’m trying not only to share fashion tips but come up with ways to instill body positivity in all women who are reading my articles – aka YOU!

Instead of just reading it, say it loud or murmur the quotes (if you are in public) to maximize the effect.

Ready? Here we go.

I love my body. She is my forever home and sanctuary.

Sassy isn’t a shape, it’s an attitude.

Work out because I love my body – not because I hate it.

I can love myself and change my body at the same time. No guilt about that.

It is completely normal to have tummy rolls. I come to realize that social media isn’t showing the reality… at all.

My happiest moments in life had nothing to do with the way my body looked.

I don’t have to be pretty like her, I can be pretty like …ME.

I AM perfect imperfection.

What are your thoughts on that? I hope that makes you feel better (as you deserved).

Please help me pass the body positivity message in your community. #womenhelpwomen

Alright, now keep on reading!

9. Fun birthday dress-up ideas: Birthday T-shirt

Gravitate towards a casual style for your 40s and 50s birthday? I said leaning into it.

tee shirt 50th birthday outfits
Source: Pinterest

Forget about the age. You look gorgeous anyways!

what to wear to 40th & 50 birthday party causally
Get on Amazon!
Hello 40 birthday shirt
Source: Pinterest
40th & 50 birthday dress up ideas
Get on Amazon!

If you want something different, what about a symbolic “Hello Forty” shirt as a mood booster? Many people buy them for photoshoots – smart ideas!

( ´ ▽ ` )ノ MY SEPT PICKS !! ʕ•̬͡•ʔ

(Continue scrolling for the article!)

ysl clutch
This YSL clutch screams the IT girl vibes. The best part? The price is *so forgiving*
pheromone perfume
Obviously, this pheromone perfume (Amazon bestseller) is for the ladies who wanna spice things up (Got you gal!)
black girl dark skin makeup
Get a FENTY BEAUTY contour stick on Sephora ♡ (REAL inclusivity brand)
ysl mini shoulder bag
Get this YSL mini shoulder bag on Net-A-porter

10. Wear a romper like a queen

For a boss bae look, a pantsuit and romper can be a great idea!

To glam things up, picking the right texture is KEY.

romper 40th birthday
Source: Pinterest

This queen is rocking this sequin romper and golden heels combo in the best way!

Feeling extra chic? What about a satin wrap romper with pointy ankle boots?

To elongate the body frame and appear to be taller visually, matching the romper and shoes in similar shades always helps!

11. Tulle skirt for 40th & 50th birthday

Believe it or not, more birthday stars rocking the tulle skirt for the big day!

Regardless of your age, it always feels good to spoil yourself and feel like a princess!

Source: Pinterest

This high-low statement dress is definitely a statement piece.

Boho x princessy short tulle skirt.

So refreshing.

Source: Pinterest

This queen obviously has her life figured out.

12. Opt for comfy & aesthetic shoes for a birthday party

what shoes to wear for 40th & 50th birthday party
Source: 1,2

If you want to have the best time at the birthday party, picking a nice pair of comfy and aesthetic shoes is KEY. I mean, life is too short for sore feet and 10 cm stilettos are the No-gos for me.

Instead, pick heels with chunky soles or even flats to fully embrace the vibes.

There are loads of embellished flats that are equally flattering, heels are not the only option!


So ladies, there you go – the 28 outfit ideas if you wonder what to wear to 40th & 50 birthday parties from dressy to casual.

I hope that get you inspired! Now let’s create your own one-of-a-kind look!

By the way, if you want more birthday dress-up ideas, I’m sure you will find the articles below useful too. See you there!

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