On your T4A(P) you can elect directly there as shown in the screenshot below:

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You mention the T4A(P). That's the whole point here. There is NO T4A(P) because I have deferred collecting CPP benefits until later. Yet Schedule 8 clearly says in Part 1 you can "However, if you were at least 65 years of age, but under 70 years of age, you can elect to stop paying CPP contributions". TurboTax produces and ERROR in the Review stage and will not allow me to elect stopping to pay CPP premiums, unless I filled out a CPT30 which I can't because my income is ALL self-employed. 

Also in the review, TurboTax review states "

When you are under "Warnings" and see You are 60 years old or older and did not enter Canada Pension Plan or Québec Pension Plan income. Confirm if this is correct. The... Click on Review & Applies to me. It will bring you to T4A(P) none entered- but you still need to answer the questions.

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As I stated, I DO want to stop paying CPP premiums (your answer indicated to say NO to that - I'm no sure why you said that???). If I say YES I do want to stop contributing to CPP, TurboTax says the error still exists and will not let me file or refile my return. 

If you filled it out this way and still having an issue to NetFile please contact our phone support team.

This solution does not work. It's been a problem for TurboTax for years from my research into this issue. Anyone can test this when they do a Review of their tax return. You cannot overcome this and Netfile will definitely fail. As a result, I had to file a manual T1 Update with a new manual Schedule 8 after filing. 

We appreciate your feedback and will bring this to our development team.

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