Birthday ideas for adults
Good adult birthday ideas start with the person: a backyard BBQ, a bowls club afternoon, a winery long lunch or a themed night with a photo slideshow. For a milestone, friends can share one bigger gift. In Australia the 21st is still the traditional big party, because 21 was the age of majority before the 1970s.
How to pick the right birthday idea
Ask three questions before you book anything. Crowd or small table? Out for the day or dancing until late? A surprise, or their worst nightmare? The answers rule out half the options.
Then set the size and the budget together, because a long lunch for close family and a backyard party for everyone they know are different jobs. Venue marketplace VenueNow's planning advice for milestone parties is to book early, set a budget, and send invitations early with the dress code on them.
Adult birthday party themes
- Decade party: pick the decade they were born in or the one they were a teenager in (70s, 80s, 90s or Y2K) and ask everyone to dress for it.
- Great Gatsby night: feathers, suits, a champagne tower if the budget runs to it.
- Casino night: hire a few tables and hand out play money at the door.
- "Years of you": baby photos on the tables, a playlist of songs from every stage of their life, and a slideshow later in the night.
- Murder mystery: a boxed kit does the hard work and suits a dinner party.
- Karaoke: book a private room, or hire a machine for the lounge room.
- Fancy cocktail party: one of VenueNow's top 50th ideas, and it works at almost any adult age.
Birthday venue ideas in Australia
- Backyard BBQ or spit roast: cheapest per head, and a hired marquee covers you if the weather turns.
- Bowls club afternoon: barefoot bowls, a bar tab and a function room.
- Surf club or pub function room: a room, a bar and a kitchen in one booking.
- Winery long lunch: the Hunter Valley, Barossa and Yarra Valley all suit a group, and a minibus solves the driving.
- Restaurant private room: the easy choice for a sit-down dinner with a smaller group.
- Harbour or river cruise: everyone is on board for the night, so nobody slips away early.
- A weekend away: a big rental house with close friends, for someone who would hate a party.
Activities that work at any age
- A photo slideshow from childhood to now, shown before the speeches.
- Short speeches from family and one or two friends.
- A golf day or a backyard mini-Olympics, two of VenueNow's competitive party ideas.
- A wine masterclass or a wine and art class.
- A charity fundraiser in lieu of gifts, another VenueNow idea, for someone who says they need nothing.
18th birthday ideas
In Australia the key belongs to the 21st, a tradition from when 21 was the age of majority. That leaves the 18th free to be whatever they want it to be. If the guest list mixes ages and there will be drinks, agree the rules with the parents and plan supervision before the invitations go out.
- Y2K or festival theme in the backyard with a food truck and a DJ.
- A group dinner at their favourite restaurant, then a night out with friends.
- A photo booth and a guest book they will actually keep.
- From the family: a keepsake (a watch, jewellery, a framed photo) and a sentimental card.
- From friends: one shared experience, such as a skydive or a drive day, pooled into one gift.
30th birthday ideas
- A 90s or Y2K party, since they grew up in it.
- A winery long lunch with a minibus there and back.
- A weekend away in a rental house with their closest friends.
- A group gift of an experience they would never book for themselves, like a scenic seaplane flight or a hot air balloon.
40th birthday ideas
- A golf day or a backyard mini-Olympics, with teams and a trophy.
- A retro party themed on the year they were born, music and all.
- A long lunch at a bowls club or a winery that runs into the evening.
- A fondue or long-table dinner party for close friends.
- A "bucket list" day: a skydive, a hot air balloon or laps in a V8.
60th birthday ideas
If the 60th lines up with leaving work, the retirement party ideas guide covers the send-off.
- A long lunch for the whole family at a bowls club, winery or restaurant private room.
- A family photo slideshow, with the grandkids running the clicker.
- A charity fundraiser in lieu of gifts.
- A group gift toward travel: quality luggage, a weekend away, or cash toward a trip.
Milestone birthday guides
Birthday group gift ideas
A milestone birthday is when one bigger gift beats a pile of small ones. These work best with a group chipping in. For gift ideas for other occasions, see gift ideas by occasion.
$150 or more (best as a group gift)
- Tandem skydive: A favourite for a 21st or a brave 40th. A weekday tandem skydive in Wollongong (from about $405 at Adrenaline, Oct 2026).
- Scenic seaplane flight: A 30-minute scenic flight over Sydney, for the person who has done everything else.
- Winery weekend: Two nights in wine country with a tasting booked, a good fit for a 50th or a 60th.
- Quality luggage: For someone with travel plans, a hard-shell carry-on lasts for years (a Samsonite carry-on is about $499 at David Jones, Oct 2026).
- Pooled experience voucher: If you cannot agree on one experience, an experience voucher lets them choose. Red Balloon vouchers start from $25 and are valid for 5 years (Oct 2026).
- Cash toward a goal: A car, a trip or a first home, collected through a birthday wishing well so everyone can add to the same total.
The birthday wishing well
Plenty of adults would rather have one thing they want than more stuff. A birthday wishing well is a short, optional note on the invitation and one link where people can chip in toward the trip, the bike or whatever the goal is. The birthday wishing well guide has wording for milestone birthdays, and the wishing well wording generator writes a line for you.
If guests ask how much to give, point them to how much to give for a birthday rather than putting a figure on the invitation.
Make it a birthday group gift
For a 30th, 40th or 60th, a group of friends chipping in a little each can buy the skydive, the weekend away or the good luggage that nobody would buy alone. One person organises, everyone else just clicks the link.
- Create a free registry for the occasion.
- Add a wishing well.
- Share one link with everyone who wants to chip in.
- Buy the gift once you know the total.
Setting up a registry with a wishing well is free. Guests can chip in by bank transfer, in cash or in store with no EasyRegistry fee. Card and PayPal contributions are a Premium feature ($39 one time), and card funds are released when the registry closes.
How a group gift wishing well works, and how much to ask each person for
Asked to chip in or sign the card?
Write something specific: a memory, a joke only the two of you get, or one wish for the year ahead. The birthday card messages guide has original lines by milestone and relationship. How much to put in is up to you: a small, optional amount is normal and any amount is welcome. The group gift guide explains how a collection works.
Birthday ideas FAQ
Before the 1970s, the legal age of majority in Australia was 21, so the 21st marked becoming an adult. It is still the big milestone party, often with a key. See 21st birthday party ideas.
Keep it short and optional on the invitation, and say what the money is for. A charity fundraiser in lieu of gifts is another established idea for a milestone. The birthday wishing well guide has wording you can copy.
It depends on how close you are and the milestone. The how much to give for a birthday guide covers it by milestone. If a group is buying one gift, each person puts in what suits them.
Create a free registry for the birthday, add a wishing well, and share one link with everyone you are asking. Buy the gift once the total is known, so you never overspend. A card everyone signs at the party can sit next to the online collection.
Collect for a birthday gift in one place
Set up a free birthday registry with a wishing well and share one link with friends and family.