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

Susan Pausin
Amazing customer service. Easy to use. Only 4 atm as no osko which is annoying.
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Reviewed
December 8, 2025
Patay Aswang
Just signed up, However the level of customer service and care has already impressed me. Going through the settings and account creation etc is also extremely easy, the allocations for spreading income over different accounts for expenses like GST, Tax, expensed is also very easy and being able to allocate up the the full 100% is a good thing (my previous provider was only 40%) you can also earn interest in the bank accounts attached to your account, which is also a huge plus. Like I said, new user, but already extremely impressed with everything so far!
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Reviewed
November 22, 2025
Joel Badcock
It is a very use-to-use platform. For a business starting out, you can't afford expensive accounting systems making an option like Thriday - which is inexpensive and has a good UI a very attractive option.
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Reviewed
November 21, 2025
Jo
Thriday makes small business life easier!
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Reviewed
November 20, 2025
Jeremy Hayne
Thirday takes all the hassle out of the finance side so I can stay focused on the actual work. As a contractor it’s made everything smoother, faster, and way less stressful. Highly recommend.
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Reviewed
November 16, 2025
JoeyAMMD
Pretty great small business finance management app
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Reviewed
November 11, 2025
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Why waste time on financial admin when Thriday can automate it for you?

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