Single return tax preparation software

Easy. Convenient. ProFile's single tax return software.

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You can only purchase one OnePay module of each type per transaction.

View our system requirements (updated for upcoming Windows 7 End of Support) and license agreement for details.

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Purchasing OnePay

OnePay can be purchased by adding it to your cart. You will then be directed to complete your OnePay purchase. Only a single product OnePay per cart transaction is allowed. 


You will then receive an email confirmation with a license code to activate your ProFile product for filing. 

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What you need to know
  • You must have an EFILE number to file T1 returns using OnePay.
  • Your taxpayer information MUST be correct as it cannot be changed later.
  • Once you've unlocked your tax return software, OnePay is not refundable.

How to get OnePay

Once you have purchased the module you need, follow these steps:

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Install ProFile

Download the latest version of the ProFile software. If you already have ProFile installed, you’ll skip this step.

Download ProFile
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Open the return to be filed

Open the client return in ProFile. You can use OnePay for T1/TP1, T2/C0-17 & T3/TP-646.

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Enter the license key

When prompted, enter the OnePay product and license key you received in your receipt email and enter the details in the ProFile product.

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File the return

File the completed return (Note: You must have an EFILE number to file returns using OnePay).


You’re done!

Need more details?