GST Calculator Australia for Sole Traders

SmartBas Solutions is a GST calculator and BAS app for Australian sole traders and tradies.

BUILT FOR AUSSIE TRADIES & SOLE TRADERS

Know exactly what you owe the ATO
— before it's due

No accountant. No spreadsheets. Enter your jobs and see your GST instantly.

EXAMPLE — THIS QUARTER
Sales$7,800 → GST collected $780
Expenses$2,000 → GST paid $200

You owe the ATO $580
Then save your results with a free 3-day trial
USED BY
Tradies Sole traders Cleaners Mechanics Cafes

Simple enough for a tradie Sunday night

🧾
Enter invoices
Log jobs as you go — cash or card
📋
Track expenses
Utes, tools, materials — all counted
📊
See GST instantly
No formulas, no guessing
📅
BAS ready anytime
Know your number before the deadline

What tradies say

"Finally something I can actually use. BAS used to stress me out every quarter."
— Dave, electrician · Brisbane
"I enter my jobs at the end of the day and it tells me exactly where I stand. Simple."
— Mel, cleaner · Perth

Simple pricing

Less than one hour of accountant time — per year
Monthly
$19.95
per month