CP 575 Course Day 30 Post


DAY 30 – Final Project: Review a Sample CP 575 and Determine the Correct IRS Tax Form

Correct tax filing for LLCs begins with understanding what the IRS has already classified your company as — and Notice CP 575 is the only official document that tells you this. Throughout this 30-day course, you learned how to read EIN assignment rules, interpret IRS entity classifications, match them to tax forms, and avoid common tax-filing mismatches.

Today’s final project brings everything together with a practical, real-world scenario. Your task is simple but extremely important:

Review a sample Notice CP 575, identify the IRS default tax classification, and determine which IRS form the LLC must file.

This exercise reflects a real situation faced by accountants, bookkeepers, and U.S. business owners every tax season.

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Sample Notice CP 575 Details (Hypothetical Example)

Below is a simplified version of the CP 575 information we will evaluate:

Entity Name: Alpha Fintech LLC
EIN: 12-3456789
Type of Entity: Limited Liability Company
IRS Default Tax Classification: Sole Proprietor
Number of Members: 1
Effective Date of EIN Assignment: January 10, 2024
Filing Requirement Message: “You are required to file employment tax returns if you pay wages.”
No Election Filed: No record of Form 8832 or 2553 received.

This is more than enough to determine the correct IRS tax form.

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Step 1 — Identify the Default IRS Tax Classification

The CP 575 reveals:

• The entity is an LLC
• It has one member
• IRS assigned the default classification as “sole proprietor”

This means the IRS considers Alpha Fintech LLC a disregarded entity (unless an election is made).

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Step 2 — Check Whether Any Tax Election Exists

The Notice states:

• “No record of Form 8832 or Form 2553 received.”

This tells us the LLC has NOT elected:

• C Corporation taxation (Form 8832), or
• S Corporation taxation (Form 2553)

Therefore, the IRS default classification remains valid.

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Step 3 — Determine the Correct Tax Form

Based on the IRS rules:

• A Single-Member LLC (SMLLC) with no election
→ files taxes under the owner’s Form 1040, using Schedule C.

Therefore:

Correct Tax Form: Form 1040 Schedule C
❌ Not Form 1065
❌ Not Form 1120
❌ Not Form 1120-S

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Step 4 — Identify Any Additional Filing Requirements

Because the sample CP 575 states:

You are required to file employment tax returns if you pay wages.

This implies the LLC may also need:

Form 941 – Quarterly payroll tax return
Form 940 – Annual FUTA return
State payroll filings
W-2 & W-3 at year-end

If the business has no employees, these can be marked N/A.

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Step 5 — Final Determination & Filing Summary

Final Classification:
✔ Single-Member LLC (Disregarded Entity)

Correct IRS Income Tax Form:
Schedule C (Form 1040)

Additional Possible Filings (If applicable):
• Form 941
• Form 940
• State payroll reports
• W-2 / W-3
• 1099-NEC for contractors

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Final Project Conclusion

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CP 575 Course Day 30 Post FI

By reviewing the key details in Notice CP 575, you successfully determined:

  1. The IRS default tax classification

  2. Whether any election changed that classification

  3. The correct tax form for compliance

  4. Additional filing obligations triggered by payroll activity

This concludes your 30-Day Course on Using Notice CP 575 for Correct LLC Tax Filing.

You now have the full skillset to:

• interpret CP 575
• avoid filing mismatches
• choose the right IRS tax form
• provide accurate compliance guidance to clients and LLC owners
• prevent penalties and IRS notices


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