AUS/CALCS
22°· SYD· --:-- AEST
HOUSEHOLD SEGMENT · GROUP HOUSEHOLD

The share house, split fairly.

Three-hundred-and-sixty-two thousand Australian households are share houses — separate lives, separate pay packets, one lease and a very active group chat about the power bill. It’s usually a stage, not a destination, which makes the money questions here about fairness now and timing later.

THE NUMBERS
362,000
share houses (3.9% of homes)
ABS Census 2021
31–33
median age at first marriage — the exit
the usual way out
Unmeasured
income · wealth · rent-split norms
the data gap
ABS Census 2021 · Marriages & Divorces 2024
Housemates

A share house isn’t a family with a shared budget; it’s separate finances under one lease. So the useful frame is two money questions at opposite ends of the stay: split the rent fairly now, and know when it’s worth breaking off to buy.

The earning picture

A share house has three (or four) separate incomes that never merge — so “household income” here means almost nothing. We’ll show personal income instead, and say why: the rent is split, the bills are split, and each person’s money is their own.

Share of housemates by personal income
PER HOUSEMATEALL AUSTRALIA
Band A · under $650/wk34% · 18%
Band B · $650–$1,250/wk28% · 21%
Band C · $1,250–$2,000/wk20% · 24%
Band D · $2,000–$3,000/wk12% · 22%
Band E · over $3,000/wk6% · 15%
PLACEHOLDERABS TableBuilder — persons in group households × personal income (PINCP) (pending)
Median weekly income, by state
PERSONAL INCOME (PLACEHOLDER)
NSW
$1,180/wk
VIC
$1,145/wk
QLD
$1,090/wk
WA
$1,150/wk
SA
$1,005/wk
TAS
$940/wk
NT
$1,220/wk
ACT
$1,395/wk
PLACEHOLDERABS TableBuilder pull — state medians indicative
THE PATTERN

The defining feature is un-pooled money under a shared roof. That’s why the friction points are all about splitting — rent by room size, bills by usage, the bond three ways — and why the biggest financial decision is when to leave.

THE SAVING EDGE

Share-house living is usually the cheapest way to rent per person, because fixed costs are shared — which makes it a good base to save from. The question is whether saving here beats buying now, and when marriage or a deposit tips the balance toward moving on.

Where the money goes

The advantage is real: rent, power, internet and the couch are all divided, so per-person fixed costs are lower than any other household type — read the shares per person, not per house.

SHARE OF THE HOUSEHOLD DOLLAR · %
34%
18%
14%
12%
9%
13%
Housing
Food & groceries
Childcare & education
Transport
Utilities & bills
Everything else
PLACEHOLDERIndicative allocation · ABS Household Expenditure patterns

That’s the saving edge; the spending question is how much of it actually reaches the deposit account versus the group takeaway order. The tools below cover the two decisions that matter — splitting fairly, and timing the move — and the rest of a share-house budget mostly looks after itself.

Splitting the rent — and when to stop

Two money questions define the share house, and they sit at opposite ends of the stay. At the start: split it fairly — by room, by usage, not lazily down the middle.

Near the end: work out when the saving edge of cheap shared rent stops beating the case for buying your own place. The tools below cover both; the rest mostly looks after itself.

THE TWO SHARE-HOUSE DECISIONS
By room & usage
Split rent by room size and bills by usage, not “divide by three”
Cheapest per person
Share-house energy per person is the lowest of any household (AER)
Exit at 31–33
Median first marriage or a deposit is the usual way out
ABS Marriages & Divorces 2024 · AER consumption benchmarks

What we know about them

362,000
Share houses
3.9% of all households.
ABS Census 2021
Mostly renting
Expected near-total tenure
Group households expected to rent almost entirely; exact split pending.
PLACEHOLDERCensus TEND × HHCD
Skews 20s
Age profile
Young-renter dominated; exact profile pending.
PLACEHOLDERCensus HHCD × AGEP
Unmeasured
Income · wealth · rent-split norms
No published finances for group households anywhere — the honest gap.
PLACEHOLDERPINCP + DSS Rent Assistance pulls
YOUR MONEY, YOUR TOOLS

The five calculators they want most

ALL FAMILY TOOLS →
01COMING SOON
How do we split the rent and bills fairly?
Rent-split calculator
Tuned for share houses
02COMING SOON
Rent or buy — when does buying win?
Rent-vs-buy calculator
Tuned for share houses
03
What's my working-from-home deduction?
Work-from-home calculator
Tuned for share houses
04
HECS indexation just hit — what does it do?
HECS indexation calculator
Tuned for share houses
05
How do I start investing small?
Dollar-cost-averaging calculator
Tuned for share houses
Not sure where to start?
Answer three quick questions and we'll point you to the right calculator.
START HERE →

Questions share houses ask us

What’s the fairest way to split rent in a share house?
The fairest split usually weights rent by room size and shared-space access rather than dividing evenly — the person with the big room and ensuite pays more than the box room. Bills are fairest split by usage where it’s measurable and evenly where it isn’t. A rent-split tool (coming soon) turns room sizes and the total rent into per-person figures so it isn’t an argument.
+
Can I claim working-from-home deductions if I rent?
Yes — renters can claim WFH running costs (a share of electricity, internet, phone and the like) using the ATO’s fixed-rate or actual-cost method, based on the hours you work from home. You can’t claim rent itself unless you run a genuine business from a dedicated space, which most share-house tenants don’t. The WFH tool works out the deduction on your hours.
+
HECS indexation just hit — should I make a voluntary repayment?
HELP debts are indexed each 1 June to keep pace with inflation, which lifts the balance but doesn’t change that repayments are income-based and interest-free in the usual sense. Whether a voluntary repayment is worth it depends on the timing versus indexation and what else you’d do with the money — the HECS indexation and voluntary-repayment tools show the effect.
+
Is it worth buying while I’m still sharing, or keep renting?
Share-house rent is usually the cheapest housing per person, so the saving it frees up can build a deposit faster — but that edge only pays off if the saving actually goes toward buying. The rent-vs-buy tool (coming soon) compares total cost of staying versus buying so the timing decision isn’t just a feeling.
+

Reads for you

From The Brief
SOURCE: ABS CENSUS 2021 · MARRIAGES & DIVORCES 2024 · HOUSEHOLD & FAMILY PROJECTIONS 2021–2046 · AER ELECTRICITY & GAS CONSUMPTION BENCHMARKS. GROUP-HOUSEHOLD INCOME, WEALTH AND RENT-SPLIT NORMS ARE NOT PUBLISHED — FLAGGED, NOT ESTIMATED. REUSE WITH CREDIT + LINK.
STAY CURRENT
Get the updated numbers when rates change.
We'll email you when the figures behind this page move. Capture only — no spam.
Source: ABS Census 2021 · Labour Force Survey (Families) Jun 2025 · Housing Occupancy & Costs 2019–20. Reuse with credit + link.