Australian BAS Lodgement & GST Calculator

Never miss a BAS due date again. Track income and expenses, calculate GST automatically, and prepare ATO-ready reports in minutes.

5,000+ Australian Businesses
4.8★ Customer Rating
100% ATO Compliant
myBAS Dashboard showing GST calculations and BAS due dates
FREE FOREVER

ATO Logbook & Mileage Tracking

Australia's favorite free mileage tracker for tax deductions

Track your business trips, calculate tax deductions, and maintain an ATO-compliant logbook - free forever with unlimited trips!

Location tracking

Record trips with GPS tracking and auto-calculation using current ATO rates (78¢/km)

Location tracking

Choose between logbook method or Cent per KM method to record expense claims, compare from the both and chooose whichever is higher. (78¢/km)

Report

Generate ATO-compliant logbook reports for tax returns and audits

NEW FEATURE

myTax Claims & Receipt Keeper

Maximize your tax refund with our ATO deduction tracker

Track all your work-related expenses, store digital receipts, and follow occupation-specific deduction guides to boost your tax return.

Receipt

Keep unlimited record of expenses and income for FREE FOREVER, Send record to self or accountant

Receipt

Capture, store, and categorize receipts according to ATO deduction types

Calculator

Estimate your tax refund with our free Australian Tax Calculator

Free Australian GST Calculator

Calculate GST for your business transactions instantly

Before GST
After GST
Only GST

Calculate the GST-inclusive (after GST price) and GST amount from a GST-exclusive (before GST) amount.

GST Amount:
$0.00
After GST Total:
$0.00

Calculate the GST-exclusive (before GST price) and GST amount from a GST-inclusive (after GST) amount.

Before GST Amount:
$0.00
GST Amount:
$0.00

Calculate the GST-exclusive (before GST price) and GST-inclusive (after GST) from GST amount only.

Before GST Amount:
$0.00
After GST Amount:
$0.00

All calculations use the current Australian GST rate of 10%

Learn More About GST Calculations

Upcoming BAS Due Dates

Q1 2025
January 1 - March 31
Due: April 28, 2025
51
days remaining
Set Reminder
Q2 2025
April 1 - June 30
Due: July 28, 2025
142
days remaining
Set Reminder
Monthly (March)
March 1 - 31
Due: April 21, 2025
44
days remaining
Set Reminder

Use our tax calculator, which helps you estimate your potential tax refund based on your income, deductions, and other factors. See how tracking deductions can maximize your tax return.

Remember: This will be an estimate only. Your actual tax refund may vary based on your specific circumstances and ATO assessment.

Why Australian Businesses Choose myBAS

Tools designed specifically for Australian GST, BAS, and tax requirements

Calendar icon

BAS Due Date Reminders

Get email and push notifications before BAS lodgement deadlines. Never miss a quarterly or monthly due date.

Calculator icon

Automatic GST Calculator

Instantly calculate GST on income and expenses. Input with or without GST for accurate BAS reporting.

Report icon

ATO-Ready Reports

Generate ATO-compliant reports for BAS lodgement with a single click. Export or share with your accountant.

Receipt icon

Receipt Storage & OCR

Scan and store receipts with our OCR technology that automatically extracts transaction details and GST information.

Car icon

Free ATO Logbook

Record business travel distances using current ATO rates (78¢/km) for tax deductions and fuel tax credit claims. Free for all users!

Deduction icon

Tax Deduction Tracker

Track work-related expenses with occupation-specific guides to maximize your tax return. Digital receipt keeper included.

Plans for Every Australian Business

Choose the perfect plan for your business needs

MyDeduction

Free Forever

For individuals with TFN only (no ABN)

  • Unlimited mileage tracking
  • ATO-compliant logbook
  • Basic income & expense tracking
  • Tax refund calculator

myTAX

$4.99/month

For PAYG earners and non-GST registered sole traders

  • Everything in Free plan
  • OCR receipt scanning
  • Receipt storage
  • Tax deduction tracker
  • 20% off tax return preparation
Most Popular

MyGST

$14.99/month

For GST-registered sole traders with BAS obligations

  • Everything in Essentials
  • GST calculations
  • BAS-ready reports
  • Chat with accountant
  • 50% off BAS lodgement

MyBusiness

$24.99/month

For small businesses with staff/managers

  • Everything in Sole Trader BAS
  • Multiple users
  • Advanced reporting
  • Free InvoiceMaker.au integration
  • Priority support

How myBAS Simplifies BAS Lodgement

Less time on paperwork, more time on your business

1

Record Transactions

Enter income and expenses with our easy-to-use forms. Scan receipts with OCR technology, categorize transactions, and calculate GST automatically.

Screenshot of transaction entry screen
2

Track Business Activities

Monitor your income, expenses, GST collected, and GST paid throughout the quarter with visual dashboards. Track mileage for business deductions.

Screenshot of business activity dashboard
3

Generate BAS Reports

When it's time to lodge, generate ATO-ready BAS reports with pre-filled figures for each field required. Review summary data and export if needed.

Screenshot of BAS report generation
4

Lodge with Confidence

Review your BAS summary, send to your assigned accountant for review, or use the figures to complete your lodgement with the ATO. Get discounted lodgement services.

Screenshot of BAS lodgement summary

Ready to streamline your BAS process?

Join thousands of Australian businesses using myBAS to save time and reduce stress at BAS time.

Start Your Free Trial

For Accountants & Bookkeepers

Join our growing network of accounting professionals

  • Streamline client onboarding and communication
  • Manage all your clients in one dashboard
  • Earn commissions on client subscriptions
  • Offer discounted BAS and tax services
  • Access real-time client financial data
Join as an Accountant
myBAS Accountant Dashboard

What Our Customers Say

Trusted by business owners across Australia

★★★★★
"myBAS has saved me hours every quarter. The automatic GST calculations and categorization make BAS preparation so much easier. I used to dread BAS time, now it's just a few clicks!"
Sarah T.
Sarah T. Retail Store Owner, Brisbane
★★★★★
"As a tradesman, I'm always on the road. Being able to track expenses and mileage on my phone has been a game changer. The BAS due date reminders are also fantastic - I never miss a deadline now."
Michael R.
Michael R. Electrician, Perth
★★★★★
"My accountant recommended myBAS and it's cut my accounting fees in half. Everything is organized and accurate when I send my quarterly reports. The direct chat with my accountant has made tax time so much easier!"
Jessica L.
Jessica L. Marketing Consultant, Sydney
★★★★★
"The myTax Claims tool helped me discover deductions I didn't know I could claim. Last year I got an extra $1,200 back just by properly tracking everything with their app!"
David K.
David K. Sales Representative, Melbourne

Frequently Asked Questions

When is my BAS due?

For quarterly lodgers, the BAS due dates are:

  • Quarter 1 (July-September): October 28
  • Quarter 2 (October-December): February 28
  • Quarter 3 (January-March): April 28
  • Quarter 4 (April-June): July 28

Monthly lodgers must submit by the 21st of the following month.

How do I calculate GST for my BAS?

GST calculation involves:

  1. Calculating GST collected from sales (1/11th of GST-inclusive sales)
  2. Calculating GST paid on business purchases
  3. Subtracting GST paid from GST collected to determine your net GST obligation

myBAS handles these calculations automatically for every transaction you record.

How do I track vehicle expenses for tax deductions?

With myBAS free mileage tracker:

  1. Log your business trips with starting/ending locations
  2. Record the purpose of each trip
  3. Our app calculates the distance and tax deduction (currently 78¢/km)
  4. Generate ATO-compliant logbook reports for your tax return

This feature is free forever for all users, including individuals without an ABN.

How can I maximize my tax deductions?

Use our myTax Claims tool to maximize your tax refund:

  1. Track all work-related expenses throughout the year
  2. Store digital receipts for proof of purchases
  3. Use our occupation-specific guides for deduction opportunities
  4. Categorize expenses according to ATO guidelines
  5. Generate tax-ready reports at tax time

Our digital receipt keeper ensures you never lose a deduction opportunity.

Which plan is right for my business?

Choose your plan based on your business needs:

  • Individual PAYG (Free): For individuals without ABNs who need mileage tracking and basic income/expense tracking
  • Sole Trader Essentials: For non-GST registered businesses
  • Sole Trader BAS: For GST-registered sole traders
  • Business Pro: For businesses with staff/managers

You can upgrade or downgrade your plan as your business grows.

What can I claim on tax without receipts?

While the ATO prefers receipts, you can claim without detailed receipts in some cases:

  • Work-related expenses up to $300 total
  • Vehicle expenses using cents per kilometer method (up to 5,000 km)
  • Home office expenses using fixed rate method (52¢ per hour)
  • Laundry expenses under $150 (for eligible work clothes)

Our myTax app helps you track these calculations and maintain sufficient evidence even when detailed receipts aren't available.

See myBAS in Action

Watch how easy it is to manage your BAS and track mileage with our app

Try It Yourself - Free

No credit card required for Individual PAYG plan

Take myBAS With You Everywhere

Our Progressive Web App works just like a native app on your phone or tablet. Install it to your home screen for quick access, even when you're offline.

Offline access Works Offline
Push notifications Due Date Reminders
Camera access Receipt Scanning
Home screen icon Home Screen Access
Install on iOS Install on Android
myBAS app on mobile devices

Contact Us

We're here to help with your BAS and tax needs

Send Us a Message

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