The admin cost calculator
WHAT'S ADMIN REALLY COSTING YOU?
Every hour on admin is an hour off the tools
Chasing suppliers, chasing timesheets, chasing paperwork — it all adds up. Enter your own admin time first, then what it costs to have staff do it. We'll add both together and show you what an Offsider would save you — then email you the full report.
1Your own admin time
$
What you bill clients, per hour for your time
After leave, public holidays, downtime
2Staff doing admin
Applies to all staff below — after leave, public holidays, downtime
Staff member 1
$
%
SG rate is 12% from 1 Jul 2025 — adjust if it changes
%
Default is 3% as a typical construction rate — adjust to match your policy
%
Default is 7% and includes leave loading, insurance, equipment & software — whatever else sits on top of wage.
3Cost of an Offsider
Offsider monthly fee
$3,500
Standard rate — one dedicated, certified Offsider
One-off setup fee
$1,500
Recruitment, training, onboarding — year 1 only
What this means for the year
Cost of admin — your time + staff
$147,888
$86,400 your time + $61,488 staff
Cost of an Offsider
$42,000
Annual saving with an Offsider
$105,888
Is the ongoing annual saving that stays in the business instead of being spent on admin.
Time you get back
Per week
45 hrs
Per month
180 hrs
Per year
2,160 hrs
To spend on billable work, on growing the business — or simply switching off on time.
You build. We keep the business moving.
The breakdown
| Line item | Annual |
|---|---|
| Your time on admin | $86,400 |
| Admin staff member — wage + overheads | $61,488 |
| Combined cost of admin | $147,888 |
| Offsider — monthly fee × 12 | $42,000 |
| Offsider — one-off setup (year 1 only) | $1,500 |
| Offsider — year 1 total | $43,500 |
| Annual saving (year 2+) | $105,888 |
What an Offsider takes off your plate
- Job scheduling — organised
- Supplier & subbie follow-ups — tracked
- Timesheets & job costing — logged
- Compliance paperwork — collated and flagged
- Client updates — prepared and sent
- Variations & progress claims — tracked, never priced