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Error: 10366 in Turbotax Business

When I am trying to start to fill a new Form 1065 (Multi-member LLC) an Error Code emerging and the program crashes.

 I have tried to use program in different computers, but result is same.

I ran program as Administrator, but result was same.  

ERROR MESSAGE:

TurboTax cannot load the installed tax forms. There may be a permission issue on the perwin.ini.file. We cannot read a value for key EngineOptions.CachePath.

File location

C:\Users\-ERD-\AppData\Roaming\Intuit\TurboTax\TY20\business\perwin.ini

Error: 10366

I made a small search on internet and learnt people experienced same problem even 14 years ago in Turbotax. However, Customer Service Representative told me that she heard that problem first time.

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14 Replies
Cass0317
Intuit Alumni

Error: 10366 in Turbotax Business

Please try uninstalling the program and reinstalling to see if this fixes the issue. Please see the instructions below:

Forcefully uninstall and reinstall TurboTax

 

If you need further assistance, please reach out to TurboTax Customer Care, as we do not have access to your information in the forum. 

The best and most efficient way for you to connect with the right person to get the help you need is to select the version you are using below. Use the web form and type your question or a keyword. You will get an appropriate phone number for your issue. (You will not get a phone number if you use the link outside of operating hours.) We're open daily from 5:00 AM to 9:00 PM PT.

Error: 10366 in Turbotax Business

I could not fix the problem, and I have couple days to fill my tax form.

how can I switch my Turbotax Business Download version to online version? Because I am not able to use Download version. I installed program three different computers and having same problem. Most probably there is a system problem in the software.

Error: 10366 in Turbotax Business

I have this exact problem -- reinstall didn't help. Running on Windows 11. Very frustrating. Has anyone been able to get past this issue?

CarissaM
Intuit Alumni

Error: 10366 in Turbotax Business

We would like to assist you further. Please follow the instructions here to contact us by phone. @baris_eris

**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"

Error: 10366 in Turbotax Business

Thank you -- was on the phone with your support team; initial suggestions seemed generic. I even sent a "crash report" (as TT crashes on this 100% of the time) and in it I did include the case# that the agent provided to me. If you're able to check that in the backend crash report submissions, you should find one under 10366..

 

Other data points:

2020 Turbotax desktop installation across 2 other machines -- ALSO hitting this problem; it does appear you folks have a regression in the code that is causing TT to crash.. Error code 10366 is the same. For example, on the same hardware that I used TT 2020 on to file taxes, I could NOT install the same TT to look back into my 2020 taxes.. It is crashing with 10366. Please have someone high up in your technical escalation chain look at the crash reports coming in.. Maybe you turned too far into online-only world but we the desktop app users would still appreciate some attention. Thank you.

CarissaM
Intuit Alumni

Error: 10366 in Turbotax Business

Thank you for such a detailed response. Since we are limited here in this public forum, I do as you to contact us by phone once more to better assist you, however please ask for technical assistance. This should get you over to the best team for the issue. @baris_eris

**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"

Error: 10366 in Turbotax Business

Hi Baris,

I see you had error 10366. I also tried uninstall-install, tried calling-no solution yet.

Have you had your prob. solved? Appreciate some help since I am trying to file for 2018.

Halit

Error: 10366 in Turbotax Business

Hi Erdinç

any luck with a solution for error 10366?

halit

Error: 10366 in Turbotax Business

You will most likely have to contact Support.

 

What is the TurboTax phone number? (intuit.com)

Error: 10366 in Turbotax Business

It was not able to be resolved on Windows; I had to install TT on a Mac and completed my taxes there.. Support gave up and authorized/issued a new license key for me to use on a MAC. If you have an option to use a Mac, that might be the fastest way out.

Error: 10366 in Turbotax Business

@baris_eris 

 

So this is clear for future users who might come across this thread, you are using a desktop TurboTax product other than TurboTax Business, is that correct?

 

In other words, you had an issue installing and running a desktop product, such as Basic, Deluxe, Premier, or Home & Business, correct? 

 

I just wanted this to be noted since the original post in this thread involved TurboTax Business and there is no MAC version of that product.

 

Error: 10366 in Turbotax Business

I didn't realize the difference in editions, but yes now that I checked; it is indeed "Home & Business 2021" running on my Mac. Basically the whole platform had to be changed away from Windows for the problem to be worked around. TT should look into fixing this 10yr old problem on the Windows side. I have a 100% repro on Windows and am happy to offer more logs/help etc in case its needed.

Error: 10366 in Turbotax Business

@baris_eris 

 

You might want to try sending a tax file (personal information redacted) to an agent assuming you can get a file to open in the program on Windows.

 

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Error: 10366 in Turbotax Business


@baris_eris wrote:

....Basically the whole platform had to be changed away from Windows for the problem to be worked around. TT should look into fixing this 10yr old problem on the Windows side.


I understand completely, but it appears as if this is not a widespread issue (which does not exactly motivate developers to devote a bunch of resources to it).

 

Actually, if you do an internet search (Google) with the search terms "TurboTax error 10366" you basically just get this thread. 

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