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New Member
posted Jun 24, 2019 12:05:48 PM

Why did turbo tax calculate the wrong social security taxable benefit amount for 2018?

0 23 6083
23 Replies
Level 15
Jun 24, 2019 12:13:19 PM

It doesn't.  It calculates the taxable amount of Social Security based on your other income.  

 

If the IRS says more of your SS is taxable it might be because they changed and increased some other income on your return.  Read the letter again.  A common change is they increased the taxable amount of any 1099R you got for Pensions, and 401k or IRA withdrawals or conversions.

 

 

New Member
Jun 24, 2019 1:17:24 PM

Nope, I checked the IRS by downloading a Worksheet for "figuring your taxable benefits", plugged in my figures from my submitted tax return and the IRS is right, Turbo Tax is wrong.  That is why I'm reporting it.  The IRS notice reads :"We believe there's a miscalculation on your 2018 Form 1040, which affects the following area of your return: (Tax on Social Security Benefits) They corrected it which reduced my refund by $155.00

Level 15
Jun 24, 2019 1:39:39 PM

TurboTax's Social Security Benefits Worksheet implements the IRS calculation.  Compare this worksheet to your own calculation to find why TurboTax calculated a different taxable amount.  Given the same inputs to this worksheet and the worksheet that you used to do the calculation, I'm sure that TurboTax would produce the same result, so it's likely that the inputs are different.  You'll likely find that the IRS indeed caught some other item of income that was missing from your tax return or disallowed some above-the-line deduction (Schedule 1 Adjustments to income) and the $155 tax difference is due to the increase in AGI caused by the combination of these effects.  Without the details needed to perform the calculation, it's not possible to know why the results differ.

 

Also, the IRS letter should not be construed as indicating that the calculation method of the taxable amount of Social Security income is flawed, only that the taxable amount of Social Security income that the IRS calculated disagrees with what was reported on your tax return.  The IRS refers to any disagreement as a "miscalculation."  That disagreement is virtually always caused by some other change that the IRS made to your tax return.

Returning Member
Feb 17, 2020 12:32:14 PM

I entered the same number for both the TurboTax online and TurboTax CD versions. The TurboTax CD returned a $249 smaller deduction for Social Security than the online version. Of course, I can't see the actual online worksheets unless I pay for them. The CD version looks correct.

Expert Alumni
Feb 17, 2020 1:51:58 PM

If you think the calculation was not correct on your tax return, you can file an accuracy guarantee claim with TurboTaxs as follows:

 

https://ttlc.intuit.com/community/charges-and-fees/help/how-do-i-submit-a-claim-under-the-turbotax-100-accurate-calculation-guarantee-or-100-accurate-expert/00/26065

Level 15
Feb 17, 2020 1:58:35 PM

What do you mean a smaller deduction?  The taxable SS is different for line 5b?  Then another income line has to be different too.  You have to compare each lines.  It's easy to enter something different or answer a question differently between online and Desktop.

 

heres an idea......you can try downloading your online return tax file without paying for it.  But first save your Desktop return with a different name.  Then you can find what's different.

 

First download the .tax file from the Online version,  

https://ttlc.intuit.com/community/saving/help/how-do-i-save-my-turbotax-online-return-as-a-tax-data-file/00/25740

 

Then see, How to Switch to Desktop,

https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-switch-from-turbotax-online-to-the-turbotax-software/00/

 

After you get the program installed the first thing to do before you open your tax return is to update the program and install any state programs you had.  So you first might need to start a fake return to be able to download the state program (go to FILE - New)

 

Then you just OPEN the .tax2019 file, go up to File-Open.  You don't import or transfer it.

 

 

 

Level 2
Oct 24, 2020 5:24:39 PM

I had the same problem with my 2019 return where the taxable SS amount was higher per the IRS vs the TurboTax calculation.  I'll do the calculation manually and see where there is a difference in how it was calculated and post results.  Seems that responses to customer's inquiry all point to operator error as though TT couldn't make a mistake.

Level 2
Oct 24, 2020 6:12:55 PM

I've now determined the cause of the error.  In an effort to determine estimated tax, I had created an initial estimated tax return which included the taxable SS income figure.  When I modified this initial tax return to create the final return,  the initial taxable SS figure was used (overridden) and I did not realize it nor do I recall the software app asking me to confirm that I wanted to use the overridden figure.

I should have reviewed the calculation worksheets as the overridden number is highlighted in red.  

Level 15
Oct 24, 2020 6:16:07 PM

I am aware of no case documented on this forum where either 2018 or 2019 TurboTax incorrectly calculated the taxable amount of Social Security benefits.  Given the millions of tax returns prepared using TurboTax that include taxable Social Security benefits and the fact that the calculation method has not changed for many years, it's extremely unlikely that TurboTax makes any such calculation error.

 

The most common cause of a discrepancy between the amount of taxable Social Security benefits determined by TurboTax and the by the IRS is that the user made an error on their tax return that resulted in an incorrect amount of other income being reported and the IRS corrected that, causing a change to the taxable amount of Social Security benefits.  Within a certain range, the taxable amount of Social Security benefits depends on the amount of other income on the tax return.

Level 15
Oct 24, 2020 6:19:53 PM

In the case of scubar's error of failing to remove an override, that would have been caught by TurboTax's Smart Check.  For the tax return to be filed that way the tax return would have to have been mailed, ignoring or overlooking TurboTax's flagging of this error.

Level 2
Oct 27, 2020 3:17:43 PM

Yes dmertz, I would have expected the smartcheck to have caught it as it has questioned overrides in the past.  Guess I just missed it as I always use the smartcheck feature.  In any event, I'll be more careful in the future.

Level 2
Feb 11, 2021 3:03:09 PM

I have the same type of problem with my 2020 return.  It placed my $300.00 Cash Charitable Contribution amount on line 6 of the TT Social Security Benefits Worksheet which reduced my taxable social security benefits.  

When I go back and delete the $300.00 from "Deductions" section of where you input the figure, the amount then disappears from the SS Benefits Worksheet and the correct amount is displayed.  Also, if I go and delete the $300.00 from the worksheet itself using the "Override" function then the correct taxable Social Security Benefit amount is displayed on the Worksheet.  I verified the correct amount using the IRS Interactive Tax Assistant (ITA) program and both amounts were the same.  TT has a problem and I have tried several times to explain the problem to TT to no avail.

 

Expert Alumni
Feb 11, 2021 5:22:28 PM

Actually, this is correct. The confusion comes from the fact that when the IRS added the special above-the-line deduction for cash charitable contributions, that it did not update the wording in some of the forms and worksheets.

 

On the worksheet "Social Security Benefits Worksheet—Lines 6a and 6b" in the Instructions for the 1040, we see "Enter the total of the amounts from Form 1040 or 1040-SR, line 10b, Schedule 1, lines 10 through 19, plus any write-in adjustments you entered on the dotted line next to Schedule 1, line 22"

 

This language dates from the time that all adjustments to income were on lines 10-19 and on line 22 on Schedule 1.

 

But this new charitable contribution is also an adjustment to income - it's just not on Schedule 1, it's over on the 1040 itself.

 

But as an adjustment to income, it needs to be on line 6.

 

The Social Security worksheet in TurboTax is the same way. It says for line 6, "Amount from Schedule 1, lines 10-19, plus any write-in amounts on Schedule 1, line 22 (other than foreign housing deduction)", but as you see on the worksheet, the $300 contribution (if that's what you contributed) is included in line 6.

 

Here's how it looks on the TurboTax Social Security worksheet:

 

 

The problem would have been OK if the IRS had not added line 10b to form 1040, but instead told people to add the $300 to line 22 (Sch 1) as a write-in. Then the wording on the worksheets and the form would have matched.

 

But they didn't.

 

In any case, just realize that line 6 on the TurboTax worksheet and the IRS worksheet needs to include all adjustments to income (except, of course, for the foreign housing deduction).

 

You can see this is you do this IRS Interactive Tax Assistant to determine how much of your Social Security is taxable. As you move through the interview, you will see this screen (near the end):

 

 

Since the $300 contribution is indeed an adjustment to income (it's included in line 10c ("total adjustments to income") on your 1040), you have to include here in the interview and on line 6 of the worksheets.

 

Make sense?

Level 15
Feb 11, 2021 7:01:14 PM

BillM223, this makes no sense.  Schedule A charitable deductions never affected the calculation of the taxable portion of  Social Security benefits, so why should the deduction on Form 1040 line 10b do so?  I think that the existing wording on line 6 of the IRS Social Security Benefits Worksheet in the instructions for Form 1040 is correct, no change needed, and your explanation is just rationalizing an actual bug in TurboTax. 

 

Apparently someone at Intuit thought that because lines 10a and 10b get added together on Form 1040 that somehow the amount on line 6 of the worksheet that includes a subset of the items that contribute to the amount on Form 1040 line 10a should also include the amount from line 10b as well.  That makes no sense; there is no justification for that.

 

"Adjustments to income" refers to specific items that are required to be entered directly on Schedule 1 line 22, not the amount on Form 1040 line 10b.

Level 2
Feb 17, 2021 2:56:05 PM

I agree with Bill in that, in my case, TT noted the correct amount of $300.00 CC on line 10b of my form 1040-SR.  However, there is no amount listed on line 10a but the program did place $300.00 on line 6 of the SS Benefits Worksheet that caused the taxable social security amount to be reduced, in my case, by $255.00. I feel that this is "double dipping" the charitable contribution amount that is allowed by the IRS.  Bottom line is that my Adjusted Gross Income noted on line 11 of the 1040-SR return was reduced by $555.00 instead of the allowable $300.00. 

Level 2
Feb 17, 2021 4:14:05 PM

My reply should have stated that I disagree with Bill's reply and agree with dmertz on his reply.

Level 15
Feb 17, 2021 4:23:15 PM

The problem is that most people affected by this TurboTax behavior will be perfectly happy with it since it lowers their perceived tax liability.  Without a significant number of people reporting this as unexpected behavior, TurboTax Product Quality has no incentive to change it.  Those people will be less happy if they start receiving notices from the IRS telling them that they have underreported their income.

Level 2
Feb 18, 2021 6:06:41 PM

I was able to use the "override" feature in TT on the social security benefits worksheet to delete the $300 on line 6 so the taxable amount matched the IRS program.  I was worried that TT would not let me efile but it did as everything processed and my tax return has been received by the IRS for processing.  I feel better that only $300 was properly deducted from my adjusted gross income. 

Expert Alumni
Feb 18, 2021 6:53:43 PM

"Schedule A charitable deductions never affected the calculation of the taxable portion of  Social Security benefits, so why should the deduction on Form 1040 line 10b do so? "

 

But the $300 is not a charitable contribution on this return. The $300 above the line deduction is only when the taxpayer is taking the Standard Deduction, so the charitable deduction is not taken on this return.

 

As for this being a bug, it seems to me that someone at TurboTax deliberately made this change - it certainly didn't happen by accident. I would find it would quite believable that TurboTax has information that supported this change.

 

However, of course, I do not have access to such decisions in TurboTax. I suggest that you place this question in the Lounge to see what else other Champions think and what the Mods say.

 

I would appreciate it.

 

 

@dmertz May I ask you a favor? When you make a reply that I should see, would you tag me (@ BillM223) in the reply? The tools that we use make it unlikely that I would see your reply (which I always want to see) unless I am tagged. Thanks.

 

@Dan93 "I feel that this is "double dipping" the charitable contribution amount that is allowed by the IRS." As I noted above, this cannot be a case of double dipping. You can take this above the line deduction only when you are taking the Standard Deduction, so you are not taking this as a contribution deduction as well.

Level 15
Feb 18, 2021 8:07:58 PM

@BillM223  

 

Well, the version of the instructions for Form 1040 published one week ago now shows that the amount from Form 1040 line 10b is to be included on line 6 of the Social Security Benefits Worksheet.  The fact that this deduction is in 62(a)(22) does cause it to be an above-the-line deduction like the others.  It seems to be a loophole in the tax code that the lawmakers failed to address.  So, TurboTax is behaving in accordance with the updated instructions for this worksheet.

 

Still, I believe that it's inequitable.  Someone age 65 of over who has made $300 in charitable contributions and has $14,051 of other Schedule A deductions such that TurboTax uses the itemized deductions has $255 more of their Social Security income taxed and a $255 higher AGI affecting other calculations than does someone with only $14,050 of other Schedule A deductions and therefore causes TurboTax to use the standard deduction with $300 on Form 1040 line 10b.  Few if any in this situation will figure out that they can lower their tax by overriding TurboTax's choice of using itemized deductions and use the standard deduction instead under these circumstances.  Excluding the line 10b amount from line 6 of the Social Security benefits worksheet would restore equity.  I guess it would take a technical correction by the lawmakers to restore equity.

 

I'll bet that I could manufacture an enhancement to the scenario above to increase the inequity substantially, factoring in things like a Retirement Savings Contributions Credit which depend on AGI, generating a tax liability difference of well over $600.  I can imagine the questions:  "Why did my tax liability increase by more than $600 when I entered an additional $1 of itemized deductions?"

Level 2
Feb 18, 2021 10:12:35 PM

My return for this year used the standard deduction as I did not have enough deductions to file long form so I did not have a schedule A for my federal return.  Just a simple return 1040-SR with no attached schedules.   The issue is that I had a Charitable contribution of $300 that was correctly noted on line 10b and line 10c.  10c is the total of 10a and 10b.  However, I did not have any adjustments to my income from schedule 1, line 22.  However, the $300 also showed up on Social Security Benefits Worksheet on line 6.  I cannot find anywhere in my search that a cash charitable contribution would qualify as an adjustment to income that would be recorded on Schedule 1 (Form 1040).  I would assume the IRS would be looking for this form to be attached to my return noting the adjustment to income.   I think the issue is how line 10 of the 1040-SR is structured.   Both 10a and 10b are adjustments to income; however, I  think they are a stand alone line adjustments to income since line 10b entry is a Charitable contribution adjustment to income and 10a entry is the total adjustments to income from Schedule 1.   I would really like to hear from someone from TT on this issue that would support their calculations.  As I am new to this forum, I do not know how to post this issue in the "Lounge" as I have not heard of it.

Level 15
Feb 19, 2021 5:43:56 AM

The fact that this deduction is listed in section 62(a) of the tax code requires the IRS to treat it the same as any of the above-the-line-deductions on Schedule 1.  I overlooked this in my original assessment.  I agree that it's inequitable and counterintuitive.  I believe that Congress simply made a mistake by putting this deduction in section 62(a) of the tax code and should have made it stand alone so that the deduction presently on line 10b and the Schedule A deduction would produce the same result if other Schedule A deductions equaled the standard deduction.  But it is what it is and the IRS and TurboTax must conform.

 

I suspect that the IRS considered putting it on Schedule 1, but they instead chose to put it directly on Form 1040 near line 12 only because of its dependence on the use of the standard deduction.

 

As I mentioned, the IRS instructions for the Social Security Benefits Worksheet have very recently been updated to require the line 10b amount to appear on line 6 of the worksheet, so that would be TurboTax's reason for having implemented it this way.

Level 2
Feb 19, 2021 11:43:49 AM

@BillM223

I stand corrected as I have looked at the updated instructions.  I agree that it is inequitable.  Oh well, it only cost me $36 to take it out of my return.  It will be interesting to see if next year they allow it to remain as the amount increases to $600 for those filing jointly.  I will not make the same mistake next year!