B4Tax Reverse Tax Witheld Calc

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Everyone
100+
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Everyone
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About this app

Reverse Payroll Tax Calculator for Australia

Calculate your Gross Pay for any pay cycle, based upon your Net Pay by working in reverse!

Most calculators only work from gross to net. B4Tax lets you calculate the gross wage, tax withheld, superannuation, and hourly rate starting from net pay.

Forget the hassle of manual reverse tax calculations.
B4Tax calculates gross pay from net pay with ease. No more endless manipulation of numbers to reach the actual net wage paid.
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Unlike most tax withheld calculators, B4Tax also works backwards.
It calculates gross wage, tax withheld, super & hourly rate from net pay.

Get your answer in just a couple of taps.
Answer basic questions relating to an employee’s net wage and get the gross pay in seconds. Easy!

Save time and effort
Net pay to gross pay calculation has been a manual task. There is no need to do that anymore as B4Tax can provide you quick estimates in just a few taps.

B4Tax is updated manually to reflect yearly tax changes.

Features

Calculate gross wage and tax withheld from net wage

Enter rate of pay to estimate hours worked

Calculate the amount of superannuation payable

Enter either Net or Gross wage, works forwards and backwards

Benefits

Save time compared to manual calculations

Quick estimates for payroll checks

Simple to use for employees, freelancers, and employers

Select current or past financial years

Disclaimer
This app is not affiliated with or endorsed by the Australian Government or the Australian Taxation Office (ATO).
It is intended for educational and reference purposes only.
For official tax information, please visit: https://www.ato.gov.au/Calculators-and-tools/Host/?anchor=PAYGW
***Features***
- Calculates the gross wage and tax withheld from only the net wage.
- Entering the rate of pay and the app will calculate the units of pay, i.e. number of hours worked.
- Calculates the amount of superannuation payable.
- Enter either the Net or Gross wage, the App calculates forwards and backwards

***Benefits***
- Time saving, no more manual calculations.
- No more distractions, it takes nearly 30 minutes to refocus after being distracted
- Problem solving, employers can calculate gross wages immediately.
- You pick the year! The App is easily adaptable to current or past years.

Disclaimer

This app is not affiliated with or endorsed by the Australian Government or the Australian Taxation Office (ATO). It is intended for educational and reference purposes only.
Updated on
16 Feb 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Data is encrypted in transit
You can request that data be deleted

What's new

Net to Gross Wage Calculator
Content rating
Everyone
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App support

About the developer
B4TAX PTY LTD
support@b4tax.com.au
3 Cromwell Court KEYSBOROUGH VIC 3173 Australia
+61 425 288 345