Five stars
4.9 average Google reviews

Business income & tax calculator for sole traders

Calculate annual and monthly revenue targets, GST, tax, and operating expenses as dollar amounts and percentages of revenue, like the Profit First method. The best part is you can automate this for real using Allocations in Thriday.

Five stars
4.9 average Google reviews
Business income and tax calculator

How it works

When you run your own business, you need to figure out how much money you need to make to cover everything - your personal income, business expenses, taxes, and still have some profit left over.

What you tell it:

  • How much profit you want your business to keep
  • How much you want to pay yourself personally
  • How much it costs to run your business
  • How much you pay other people to help you

What it calculates:

  • Based on your income, it figures out how much tax you'll owe (income tax, Medicare levy, and potentially a surcharge if you don't have private hospital cover)
  • It adds up everything you need plus taxes to figure out your total gross revenue target

Smart adjustments: Tax is deducted from owner's pay. If your profit is high and tax exceeds owner's pay, then tax is deducted from your profit.

What you get:

  • A clear breakdown showing exactly where all your money goes
  • The total amount you need to earn to meet your goals
  • The ability to see this as monthly or yearly targets
  • Real-time updates as you adjust your goals

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Here’s what our customers have to say

Jay O
As a sole trader this is an amazing tool
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Reviewed
March 2, 2026
sophie ricca
makes invoicing a breeze, so fast and simple
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Reviewed
February 26, 2026
Chiefs Cleaning Crew
Cheaper than zero or henry
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Reviewed
February 19, 2026
Mitch Evenden
Honestly Thriday is amazing! So easy to use!
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Reviewed
February 12, 2026
Cody Graham
Very easy to manage all accounting aspects, very helpful switching from xero. Invoice and quoting systems are good too
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Reviewed
January 24, 2026
Lotti Davies
So easy to use, customer service is amazing- Laura has helped me heaps and always explains things really clearly. All communication has been great, and the app which is already super clear-is getting better and better
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Reviewed
January 23, 2026
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