How to Enter Your LLC Name on IRS Forms: Exact Match Rules (Form 1120 and 5472)
Key Takeaways
- The LLC name on Form 1120 and 5472 must exactly match the EIN assignment notice
- Mismatches can cause processing delays, manual review, or rejection
- Verify your name against the CP 575 or 147C letter before filing
Exact Match Rule for LLC Names on IRS Forms
When entering your LLC name on Form 1120 and Form 5472, the IRS expects an exact match with the name on your EIN assignment notice (CP 575 or 147C letter). Every character — including spaces, punctuation, and the LLC designator — should match precisely.
Why Exact Matching Matters
The IRS uses computer systems to match filings with entity records. If the name on your tax return does not match the name associated with your EIN, your filing may be flagged for manual review, delayed, or rejected.
For foreign-owned LLCs, processing delays are especially problematic because they can trigger automatic penalty assessments.
How to Verify Your LLC Name
Check your CP 575 EIN confirmation letter or 147C verification letter. The name shown on these documents is the official name on file with the IRS. Use that exact name on all filings.
If you formed your LLC through a service like Stripe Atlas or doola, verify the name they registered matches what you intend to use on your tax filings.
Frequently Asked Questions
Does the order of words matter in my LLC name?
Yes. Enter the name in the exact order it appears on your EIN assignment notice.
What if my formation service registered a slightly different name?
The name on your CP 575 is definitive. If you need to change it, amend your Articles of Organization and update the IRS using Form 8822-B.
IRS Form 1120 Instructions
Official IRS source on irs.gov
Listen on Spotify
Money & Tax Talk with Rippa — 5/5 rating
Never miss an IRS deadline
Get free email reminders for Form 5472, state annual reports, quarterly estimated tax, and OBBBA rule changes — built for foreign-owned LLC owners. No spam. Unsubscribe anytime.
We respect your privacy. No spam, ever.
Need to file Form 5472 + pro forma 1120?
Skip the CPA bill. Our guided wizard builds your IRS-ready filing package, step by step.
Includes its walkthrough video pack
Start filing →
Ask the AI tools, free
Tax Return Drafter, Catch-Up Planner, Form Reviewer, IRS Notice Decoder — purpose-built AI tools, no signup needed.
Free tier · BYOK Anthropic/OpenAI for power use
Browse tools →
Starting your foreign-owned LLC?
Vetted partners we use ourselves: doola & Firstbase for formation, Mercury for banking, Alohi for IRS faxing.
No-fluff recommendations, no Northwest
See partners →
More on Form 1120 Corporate Tax Return
1:28What Is the Name Field on Form 1120? How to Enter Your LLC Name Correctly
1:50How to Enter Your LLC Name on Form 1120 Step-by-Step Demo
2:31Does Capitalization Matter on IRS Forms? ALL CAPS vs Lowercase (Form 1120 and 5472)
2:31Half-Width vs Full-Width Characters on IRS Forms: Use ASCII Only (Form 1120 and 5472)
3:16Spacing and Punctuation on IRS Forms: Do Periods Commas and Spaces Matter? (Form 1120 and 5472)
1:09