Calculation error in turbo tax. Anybody have this issue? CRA amended it to increase my payable - seems like it was the CWB but, could be incorrect.

[TurboTaxBrenda]

Your total payable is the amount of federal and provincial or territorial taxes that you owe before you subtract your total credits (line 48200). It also includes, if applicable, CPP contributions payable on self-employment and other earnings (line 42100), Employment insurance premiums payable on self-employment and other eligible earnings (line 42120), social benefits repayment (line 42200)

Double-check the amounts you entered on your T-slips to make sure that they were correct and entered in the proper boxes.

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[DaisyM3]

I fled for my sil and last year’s return had a “calculation error” resulting in her receiving a lower refund. The difference was in federal tax payable. I have gone line by line and it seems the error is on CRA’s part. I just did her her 2024 return and her refund is lower than filed again. I haven’t seen the NoA yet but I’m betting there’s another supposed calculation error.  I do about 10 family members and hers is the only one that this has happened with. I’ll be writing to them for a more detailed explanation. 

[DaisyM3]

Same for my sil. I’ve gone line by line and the only difference is in CRA’s calculation of federal tax. THEY calculated it incorrectly as far as I can tell so I’ll be writing to get an explanation. 

[DaisyM3]

In my sill’s case the NoA just said the difference was due to a calculation error. I manually calculated the changed line (federal tax) and CRA’s amount is incorrect. That was 2023 T1. I believe they’ve done it to get 2024 return as well. 

[neiljjjj]

I just got lost over $1000 of my 2025 tax refund because Turbotax did not calculate my Canada workers benefit correcting.

[TurboTax_Susan]

@neiljjjj 

Please contact our phone support team as they will be able to assist you further.

[Ctokarchik]

We are dealing with this in the 2025 tax year.  CRA shows Turbotax calculated line 42000 incorrectly.  Net Federal tax.   Thing is, I think Turbotax is correct.  

My daughter makes less than the basic personal exemption.  I follow the steps in the T1 to calculate her federal taxes and it makes sense.  Federal rate of 14.5 % on her taxable income.  Non refundable tax credits are also 14.5%. Basic personal exemption is almost double her income.  NRTC's are almost double her tax calculated so when you subtract it is negative which should go to zero.  Line 126.  

This is a huge deal for a broke kid.  CRA is impossible to talk to.   She is challenging.   Anyone else experience this?  CRA got a bug?  Turbotax doing calculation wrong?

[Ctokarchik]

That is the error message we got too.  All numbers sync perfectly except the Net Federal Tax.  Thing is, i can calculate Turbotaxes number but not CRA number. I think CRA has a bug. 

[user17739689050]

My daughter is having the exact same issue with line 42000. It’s reducing her credit by almost $1000. I have also gone line by line and can’t see any errors 

[TurboTaxAniqua]

@user17739689050 Please contact our phone support team as they will be able to assist you.They have access to tools we don't have here in Community, like screenshare, and see the issues to escalate into an investigation if needed.

Feel free to let us know the result.