Australia
Australia Business Calculators — GST, Working Days, Invoice Dates & Finance Tools
Free Australia business calculators — GST at a flat 10%, working days with national public holidays excluded, invoice due dates from Net 30/60/90, gross margin, markup, and CBM shipping volume. All tools are browser-based with no sign-up required.
10%
Flat GST rate
AU$75k
GST registration threshold
~251
Working days/year
8
National public holidays
Start here
What do you need to calculate?
Calculate Australia working days
National public holidays excluded
Calculate Australian GST
Flat 10% GST — add or remove
Find invoice due date
Net 30/60/90 from any invoice date
Add business days to a date
Find a deadline N working days out
Calculate gross margin
GST-exclusive cost-to-price ratio
Calculate CBM / shipping
LCL sea freight from Australian ports
Practical use cases
Useful for Australia businesses
Invoicing & AR follow-up
Set Net 30/60/90 due dates, adjust for national public holidays, and verify the real business-day payment deadline.
Australia Real Due DatePayroll & HR planning
Count working days in a payroll period, plan leave windows around 8 national public holidays, and account for state-specific days.
Australia Working Days CalculatorGST compliance
Add or remove 10% flat GST for ATO BAS lodgements. Calculate GST-inclusive prices for retail and GST-exclusive for B2B quotes.
Australia GST CalculatorFreight quotation
Calculate CBM for LCL sea freight from Sydney, Melbourne, and Brisbane ports. Estimate delivery windows in working days.
CBM for Sea FreightDeadline planning
Find real business-day due dates for contracts, SLA windows, and ATO filing deadlines with public holidays excluded.
Real Due Date CalculatorCross-border operations
Compare Australian public holidays with NZ and Asia-Pacific calendars for cross-border invoice and supply chain scheduling.
New Zealand GST CalculatorMost searched in Australia
Tax
Working Days
Workflow tip
Use this in your Australia workflow
After calculating GST, invoice due dates, or working days, save the result into your team SOP, spreadsheet, CRM, Slack, Notion, email or checklist. Use the Copy result summary button in each calculator to paste a ready-made note your team can reference without recalculating.
Workflows
Australia Business Workflows
Invoicing Workflow
- 1. Issue invoiceInvoice Due Date Calculator
Set Net 30 or Net 60 due date from invoice date
- 2. Adjust for weekendsReal Due Date Calculator
Move due date to next business day if needed
- 3. Count working daysBusiness Days Calculator
See exactly how many working days until due
GST & Pricing Workflow
- 1. Check gross marginMargin Calculator
Use GST-exclusive prices when calculating margin
- 2. Apply markupMarkup Calculator
Set selling price from cost plus markup %
- 3. Add GSTAustralia GST Calculator
Add flat 10% GST to get the customer total
Import & Logistics Workflow
- 1. Calculate CBMCBM Calculator
Get total m³ for LCL sea freight quote
- 2. Find delivery dateAdd Business Days
Dispatch + transit days to arrival date
- 3. Set payment dateInvoice Due Date Calculator
Match supplier invoice to working-day terms
UtilityPilot App
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Open the app to pin your most-used calculators, save results, and access your country tools from any device.
All Tools
All Australia Business Tools
Australia GST Calculator
Add or remove Australian GST at the flat 10% rate. Shows pre-tax, GST, and total.
Australia Working Days Calculator
Count working days with national public holidays excluded for 2026.
Business Days Calculator
Count working days between any two dates, weekends excluded.
Add Business Days
Find the date that is N business days from any starting date.
Invoice Due Date Calculator
Calculate exact payment due dates from Net 7, 14, 30, 60, 90 terms.
Real Due Date Calculator
Adjust invoice due date to next business day when it falls on a weekend.
Margin Calculator
Gross profit margin from cost and selling price. Model ecommerce and retail pricing.
Markup Calculator
Calculate selling price from cost plus a markup percentage.
CBM Calculator
Shipping volume in cubic metres for LCL sea freight and container quotes.
Work Hours Calculator
Total hours worked across shifts with break deduction — payroll and billing.
Reference
Australian GST Key Facts
| Item | Detail |
|---|---|
| GST rate | Flat 10% on most goods and services |
| Registration threshold | AU$75,000 annual turnover (AU$150,000 for non-profits) |
| GST-free supplies | Fresh food, medical services, education, exports |
| Input tax credit | Registered businesses claim GST paid on business inputs |
| BAS filing | Business Activity Statement — usually quarterly |
| Reporting | Monthly if turnover > AU$20M |
Rates and thresholds correct as of 2026 — verify with the ATO for current guidance.
FAQ
Australia Business FAQs
What is Australia's GST rate?
A flat 10% on most goods and services. Introduced 1 July 2000. Unlike VAT, the rate does not vary between categories — items are either 10% or GST-free.
What is GST-free in Australia?
Fresh food, water, sewerage, medical and health services, education, childcare, exported goods and services, and some charitable activities are GST-free.
How many Australian public holidays are there?
There are 8 national public holidays plus state-specific holidays. States and territories add their own (e.g. Melbourne Cup Day in Victoria, Show Day in Queensland). Use the Australia Working Days Calculator for exact counts.
What is standard payment terms in Australia?
Net 30 calendar days is common in B2B. The Payment Times Reporting Act 2020 requires large businesses (>AU$100M revenue) to pay small businesses within 30 days.
How many working days are there in Australia in 2026?
Approximately 251 for most states: 365 minus 104 weekends minus 8–10 national and state public holidays. Use the Australia Working Days Calculator for exact counts between any two dates.
What is a good gross margin in Australia?
Australian retail typically achieves 30–50% gross margin. Professional services 50–70%. Include GST-exclusive prices when calculating margin — the 10% GST is not revenue.
Related Tools & Regions
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All Australia tools are free and browser-based. No sign-up required.