The first thing I thought about when finding out Marlowe’s due date was “@#$% how are we going to have two birthdays parties so close to each other!?”

Parents who have children with birthdays close to each other need to decide something every year when it comes time to start party planning:

“Should we do a joint birthday?”

The temptation is huge, but sometimes your doubts are great as well – is it right for my kids? Isn’t it supposed to be a special day for each kid? However, for some families, a joint birthday is an easier option than hosting two separate parties close together.

If throwing a joint birthday party is the best option for your children, here are 6 tips that can make your joint birthday party a success.

1. Gauge Your Guests

The list of attendees might influence whether you host joint or separate parties. One major dilemma we faced, is that our family would be inviting the same group of friends to back to back parties. Hosting one large party between the two sets of birthdays made the most sense.

However, a joint birthday also presents a major problem. When combining parties – you must also take into account children’s classmates if their party falls during the school year. Since the girls birthdays fall during the summer, we decided to keep the guest list to just close family friends.

joint sibling birthday party

2. Curate a  Memorable Theme

This year we got lucky in that both daughters are obsessed with mermaids, specifically Ariel. Finding a theme that satisfies two separate interests can typically be tricky. Instead of trying, ditch any birthday party themes that are too specific and go with a joint birthday party theme that’s more generic — a rainbow party, a circus party, or a luau swim party are all good options. When it’s just not possible to agree on one cohesive idea, consider letting each child simply pick his or her own theme.

joint sibling birthday party

If your son is into trains and your daughter is into ballerinas, do a ‘trains and tutus’ party. The boys can dress as conductors and the girls can dress in tutus. By combining the two themes into one unique idea, it will allow each child to feel special at the party.

3. Do A Split Cake

You can do two cakes or mix it up and do a split cake. I can’t thank my talented friend, Liz Huber, Owner and Designer of Cakery Creation for this genius idea. Instead of having two separate cakes – consider a split cake that reflects both of your children’s interests.

According to Liz, “a split cake is a cake that has been divided into two different decorated designs on one single cake.” She says it’s “common with two people celebrating a joint birthday, or some other special event on the same day. The joint designs can be similar in style or drastically different depending on each individuals like.”

joint sibling birthday party
Split Cake from Cakery Creation

Since one of my daughters is allergic to dairy, we ordered vegan cupcakes from Wild Rabbit , and Liz created custom cake toppers that coordinated with the theme of their split birthday cake.

And while we’re on the subject of birthday cake, we learned a great pro tip from our friends with triplets. Consider singing “Happy Birthday” separately for each child, instead of singing it once and combining both names in the song. That way each child gets their own moment. 

joint sibling birthday party
joint sibling birthday party
Cake Toppers from Cakery Creation

4. Cater to Different Ages

If the birthday kids are a few years apart, it can be hard to make a party feel inclusive for all the guests. Opt for activities that are fun for everyone, no matter the age. We decided to go with a treasure hunt that we thought all your guests could enjoy together. Other great options are face painting or a piñata.

5. Ask Their Opinion

 If budget is not a factor, then ask your children what they think about sharing a birthday party. Younger children generally enjoy having joint birthday parties, whereas older kids may not.If they are too young to express those wants, decide by what their needs are by taking into account their personality types. Use your intuition to help make a decision on whether to host a joint party.

joint sibling birthday party

6. Make it Special

Whether you host a joint party or not, make sure each child feels like their birthday is special. We have decided to celebrate our daughters’ birthdays — which are two days apart — together, but saving their birthday celebrations with extended family for their actual birthdays, inviting grandparents or cousins to celebrate each child individually. While a joint birthday party can be a great solution, making sure your children feel special on the day they were born will always be the priority.

joint sibling birthday party

We decided to celebrate our daughters’ birthdays — which are two days apart — together, but saving their birthday celebrations with extended family for their actual birthdays, inviting grandparents or cousins to celebrate each child individually. While a joint birthday party can be a great solution, making sure your children feel special on the day they were born will always be the priority.

Whether you host a joint party or not, make sure each child feels like their birthday is special.


Rain keeping you inside? Here are 10 Ways To Play Inside When It Rains.


Daytona Beach Mom Melissa
joint birthday party
Show CommentsClose Comments

Leave a comment