"Treats", yes, as in classification for tax treatment. The LLC, organized
under state law, is still a business entity for federal tax law.
I just read through the instructions for the SS-4. Lines 8a-8c are used
to provide information about the LLC, which is then described in 9a. The
instructions note specifically that Line 9a is not an election for tax
classification. If the default classification is accepted, then Form
8832 isn't filed. The form's instructions don't discuss whether IRS
regards the LLC now changed to single member as a new entity.
The closest the instructions come to your position is Line 10. Reason
for applying. There is a choice "Changed type of organization" such as
becoming a partnership, but it's significant that there is no discussion
of LLCs here.
However, Form 8832 is filed to change the classification. I also read
through the instructions. Changing to a single-member LLC and accepting
default classification as a disregarded entity isn't precisely an
election but this appears to be the easiest way to notify IRS.
Nothing in Form 8832's instructions say not to use this form for this
purpose, or to file a new SS-4 to obtain a new EIN instead.
Similar to your position, LLCs are discussed in Publication 1635
Understanding Your EIN, but there is no discussion about whether
changing from multi member to single member is treated as a new entity.
There is a comment that the individual with multiple sole proprietor
businesses may use one EIN for any or all of them. In the partnership
discussion, there is discussion that there is a new entity if one
partner takes over and operates it as a sole proprietorship. There is no
discussion here about changing from a multi member to single member LLC.
Given the absense of clear instructions specific to whether IRS regards
the change from multi member to single member LLC as a new entity, I'm
going to assume it does not.
As long as the entity has informed IRS on Form 8832 of the change to
single member and that it's classification is now disregarded entity, I
don't see why IRS would consider it to be a new entity. It's reporting
multi member or single member LLC on the 8832 and the classification
election that's controlling, not the EIN itself.
If it weren't, and the classification change required the issuance of a
new EIN, then there'd be no need for the 8832. The election could be
made directly on the SS-4.
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