Calculate income tax as you go

Solo is the only app that automatically calculates your income tax and ready-to-file income tax return – as you go. Take the uncertainty out of income tax.
Try Solo free
Solo income tax calculator nz

Self-employed income

Track self-employed income directly from your bank transactions.

PAYE income

Sync pre-taxed income directly from IRD. No data entry needed.

Rental income

Long-term tenants or a spare room on AirBnb – Solo has you covered.

Income tax calculator New Zealand

Real-time automatic income tax calculator

With Solo’s real-time income tax calculations you’re always prepared – no more guesswork, no more unexpected tax bills. Budget with confidence.

Real-time automatic income tax calculator

With Solo’s real-time income tax calculations you’re always prepared – no more guesswork, no more unexpected tax bills. Budget with confidence.
Income tax calculator New Zealand
Calculating income tax for self-employed

Track multiple income sources

Easily track self-employed income directly from your bank transactions. Automatically sync pre-taxed income sources directly from IRD.
Claiming sole trader deductible expenses nz

Claim expenses and depreciation with ease

Claim expenses directly from your bank transactions. Automatically depreciate fixed assets. Solo gives you tips about which expenses to claim and does all the math.

Claim expenses and depreciation with ease

Claim expenses directly from your bank transactions. Automatically depreciate fixed assets. Solo gives you tips about which expenses to claim and does all the math.
Claiming sole trader deductible expenses nz
Calculate income tax return for New Zealand sole traders

File income tax returns effortlessly

Filing income tax returns is now easier than ever. Solo calculates all the figures you need to simply copy and paste into your online return.

  Individual income tax return – IR3
  Financial statements summary – IR10
  Rental income schedule – IR3R

Made filing 110% less intimidating.- Tina
The app has been amazing and completely saved my sanity. I recommend it to everyone. Thank you !!!- Hannah
Fantastic. So quick to link up with bank and ird, setup was a breeze. Made it through my first sole trader tax return using Solo's easy to follow system. This app has improved my understanding and comfort level with accounting and taxation. Thank You.- Joshua
Thank you so much for giving me this Financial Independence.- Vanessa
I just want to say your app is amazing. I have been trialing out other software like Xero, MYOB, Reckon, by far this is the most user friendly application for sole traders. No other unnecessary features. And super easy to navigate.- Dexie
Amazingly simple, no more guesswork and the dashboard with upcoming dates and how much tax to set aside brings so much peace of mind. I reckon your app is a game changer for the newly self employed!- Natalie

More than just income tax returns

Created for New Zealand sole traders – Solo has everything you need to succeed.

Go Solo today

From expenses to tax returns and more, you’ll discover the effortless way to stay on top of it all.
Try Solo free