Contract Comparison Calculator
Compare two contractor offers side by side — rate basis, super, GST and hours — with a break-even rate and annual take-home verdict.
Contract B nets more
$10,200
Contract A — net income$50,280
Contract A — effective rate16.2%
Contract B — net income$60,480
Contract B — effective rate19.4%
Difference (B - A)$10,200
Comparing two contracts properly
Two contracting offers rarely line up cleanly — one might quote an hourly rate excluding super, the other a daily rate that's meant to be all-inclusive, and GST treatment can differ too. Comparing the headline numbers alone can easily point you to the worse deal.
This calculator puts both offers on the same footing so you can see the actual annual take-home difference and the rate one contract would need to match the other.
What's included in this comparison
- Rate basis for each contract — hourly or daily
- Whether super is included in or excluded from each quoted rate
- GST treatment for each contract
- Expected hours or days per week and weeks worked per year
- Resulting annual take-home and a break-even rate between the two
