Form 5472 + 1120 filing service

1120 Pro Forma Instructions (Foreign-Owned LLCs)

Filling out a pro forma Form 1120 is completely different from a real corporate tax return. You complete almost nothing — fewer than 10 fields total. Below is the field-by-field breakdown of what to fill in, what to leave blank, the schedules to ignore, signature requirements, and the common mistakes that cause the IRS to misprocess your filing as if it were a real corporate return.

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What do you need to gather before you start?#

Gather these before opening Form 1120: • Your LLC's CP-575 EIN confirmation letter from the IRS (gives the legal name, EIN, and US address exactly as the IRS has them on file). • Date of your LLC's formation (on your Articles of Organization). • Year-end total assets in USD — sum of cash + receivables + inventory + fixed assets as of December 31. • A pen for signing (no digital-only signatures). If you're using the IRS's official PDF, download the current tax year's blank Form 1120 from irs.gov. Don't use a prior-year form for a current-year filing — the IRS rejects out-of-year forms. If you're using our service, the wizard generates a pre-filled 1120 from your answers; you don't need to download anything.

What do you fill in on Page 1 header?#

Top of page 1, above all other content: • Write or stamp: "Foreign-Owned U.S. DE" Name / Address block (top-left): • Entity name — exactly as on your EIN confirmation letter (CP-575). Watch for capitalization and abbreviations the IRS uses. • Number, street, and room/suite — your US business address (registered agent address is fine). • City, state, ZIP code. Items A through E (top-right): • A: Check "Initial return" if this is your LLC's first year. Otherwise blank (or "Final return" if dissolving). • B: Employer Identification Number — your 9-digit EIN. • C: Date incorporated — your LLC's formation date (MM/DD/YYYY). • D: Total assets — year-end total in USD, from Schedule L line 15 column (d). Round to nearest dollar. • E: Check applicable boxes — usually all blank for a pro forma filing. That's everything for the header. Filling out the rest of page 1 (income, deductions, tax) would be incorrect.

What income section details do you leave blank?#

Lines 1a through 11 cover: • 1a: Gross receipts or sales. • 1b: Returns and allowances. • 1c: Net (subtract 1b from 1a). • 2: Cost of goods sold. • 3: Gross profit. • 4: Dividends and inclusions. • 5: Interest. • 6: Gross rents. • 7: Gross royalties. • 8: Capital gain net income. • 9: Net gain or loss from Form 4797. • 10: Other income. • 11: Total income. ALL of these lines stay blank on a pro forma filing. Don't write "0", don't write "N/A", don't write anything. Leave the line untouched. Why: writing zeros could be interpreted as a complete (incorrect) income tax return rather than a pro forma information envelope. The IRS may then process it as a real corporate return, generate notices, request schedules, or assess tax. Empty fields signal "pro forma — informational only".

What deduction section details do you leave blank?#

Lines 12 through 29 cover: • 12: Compensation of officers. • 13: Salaries and wages. • 14: Repairs and maintenance. • 15: Bad debts. • 16: Rents. • 17: Taxes and licenses. • 18: Interest. • 19: Charitable contributions. • 20: Depreciation. • 21: Depletion. • 22: Advertising. • 23: Pension, profit-sharing, etc. • 24: Employee benefit programs. • 25: Reserved. • 26: Other deductions. • 27: Total deductions. • 28: Taxable income before NOL deduction and special deductions. • 29a: Net operating loss deduction. • 29b: Special deductions. • 29c: Total. ALL blank on a pro forma filing. Same reasoning as the income section.

What tax and payment section details do you leave blank?#

Lines 30 through 37 cover: • 30: Taxable income. • 31: Total tax. • 32: Reserved. • 33: Total payments and credits. • 34: Estimated tax penalty. • 35: Amount owed. • 36: Overpayment. • 37: Refunded vs. applied to estimated tax. All blank. Your LLC isn't computing tax. The pro forma 1120 is informational only — there's no liability to calculate, no payment to remit, no refund to claim.

What do you do with schedules on pro forma 1120?#

Schedule C (Dividends, Inclusions, Special Deductions): blank. Schedule J (Tax Computation and Payment): blank. Schedule K (Other Information): blank in most cases. If your LLC has any unusual item the schedule asks about (foreign accounts, related-party debt, etc.), only fill in the specific applicable lines. Schedule L (Balance Sheet per Books): • Beginning of year (column (a)) and end of year (column (d)) — only line 15 (Total assets) in column (d) needs a value. Must match Item D on page 1. • All other balance sheet lines: blank. Schedule M-1 (Reconciliation of Income per Books with Income per Return): blank. Schedule M-2 (Analysis of Unappropriated Retained Earnings): blank. If you encounter a schedule that asks for information the pro forma instructions don't require, leave it blank. The IRS does not expect a foreign-owned DE's pro forma 1120 to have populated schedules beyond Schedule L line 15 (d).

How do you complete the signature block?#

Sign on the signature line at the bottom of page 1 in PEN. The IRS does not accept digital-only signatures for Form 5472 + attached pro forma 1120. • Signature: in pen, on the printed form. • Date: when you actually sign (not the tax year end). • Title: "Member" or "Owner" or "Sole Member" — all acceptable for a single-member LLC. • Print name: write or type your name below the signature line for legibility. Paid Preparer Use Only block (separate row): • Leave blank if you're filing yourself. • If a preparer (CPA, our service, etc.) prepared the return but isn't the filer of record, also leave blank. • Only fill in if you have a paid preparer who is signing as the responsible preparer (uncommon for foreign-owned DEs).

What mistakes on pro forma 1120 trigger IRS notices?#

• Writing zeros in the income section — IRS may process it as a real (zero-income) tax return and ask follow-up questions about why income is zero. • Forgetting the "Foreign-Owned U.S. DE" stamp at the top of page 1 — the most common routing error. • Filling in Schedule L with a complete balance sheet (only line 15 column (d) is needed). • Signing digitally only — the IRS requires pen/ink signatures. • Mailing to the wrong IRS address — must go to Ogden PIN Unit, not the regular 1120 processing center. • Forgetting to attach Form 5472 + Part V supporting statement (the whole point of the pro forma 1120). • Using a prior-year version of Form 1120 — always use the current tax year's blank form. • Wrong EIN (typo) — must match CP-575 exactly. • Wrong tax year on the form header — must be the tax year that ENDED, not the year you're filing in. • Reporting amounts in non-USD — always convert to USD. • Filing without an attached cover letter — not strictly required by the IRS instructions but recommended for clean routing.

What is the correct assembly order for the filing package?#

1. Cover letter (1 page) — identifies the filing, lists the LLC, EIN, tax year, and forms included. 2. Pro forma Form 1120 (signed, stamped "Foreign-Owned U.S. DE") — the procedural envelope. 3. Form 5472 (2 pages) — Parts I, II, III, IV, V, VII. 4. Part V supporting statement (1+ pages) — list of reportable transactions. 5. Reasonable Cause Statement (only if filing late under DIIRSP). Fax destination: +1-855-887-7737 (IRS Ogden PIN Unit). Mail destination: Internal Revenue Service, 1973 Rulon White Blvd, M/S 6112, Attn: PIN Unit, Ogden, UT 84201 (certified mail recommended). Keep your fax transmission receipt as proof of timely filing. The receipt's timestamp is your legal filing date.

Use our pre-filled pro forma 1120#

Our wizard generates a pre-filled, signature-ready pro forma 1120 that follows every instruction above: • "Foreign-Owned U.S. DE" stamp at the top. • Header section pre-filled from your wizard answers. • Income, deductions, tax sections correctly empty. • Schedule L line 15 (d) pre-filled with the year-end total assets you entered. • Signature line ready for your in-portal canvas signature. • Form 5472 + Part V supporting statement assembled behind it. Standard $199 · Rush $279 · Premium $449. IRS fax delivery included on every plan. +$149 per additional past year. Every package is reviewed by an accountant on our team before submission. 100% money-back guarantee if we fail to submit.

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Frequently asked questions

Should I write 'N/A' or 'None' in blank fields?
No. Leave the fields completely untouched. The IRS instructions for pro forma filings specify the unused sections stay blank, not marked. Writing N/A or 0 can cause the return to be processed as a real corporate filing.
What if I don't know my LLC's total assets at year-end?
It's usually the ending balance in your business bank account, plus any receivables, inventory, or equipment. If your LLC only has a bank account, use that ending balance. The IRS doesn't require itemized breakdown — just the total.
Can I print a blank 1120 PDF and fill it by hand?
Yes, the IRS accepts handwritten Form 1120. Use blue or black ink, write neatly, and stamp "Foreign-Owned U.S. DE" at the top. Our service generates a typed PDF you can sign — far fewer transcription errors than handwriting.
Which tax-year version of Form 1120 do I use?
The form for the tax year that ENDED. For tax year 2024 (filed by April 15, 2025), use the 2024 Form 1120. Always download the current year's blank form from irs.gov — last year's form may have field number changes that cause issues.
Do I attach the IRS instructions to my filing?
No. The IRS doesn't need the instructions back — those are reference for you. Only the forms themselves (1120, 5472, Part V supporting statement, cover letter, reasonable cause statement if applicable) go in the package.
What if I made a mistake after filing?
File an amended return. Check the "Amended return" box at the top of Form 1120, correct the errors, and attach a brief explanation. Amendments don't waive any penalty already assessed but they correct the underlying record.
Can I use a foreign address on the 1120?
No. The 1120 expects a US address — typically your registered agent's address. Your personal foreign address goes on Form 5472 Part II as the owner address.
Do I need to attach Form 4562 for depreciation?
No. Form 4562 is for depreciation on a real corporate return. Pro forma 1120 has no depreciation deduction (the deductions section is blank), so 4562 doesn't apply.
What if Schedule K asks about foreign accounts and my LLC has a non-US bank account?
Most foreign-owned DEs bank with US-based services (Mercury, Wise USD, Relay). If your LLC has a non-US financial account, you may need to answer the Schedule K foreign-account questions and potentially file FBAR for the LLC. Talk to a tax professional if this applies — our wizard's standard package assumes US-based banking.
Where can I see what a completed pro forma 1120 looks like?
Run our wizard with sample data — at the PDF preview step you'll see exactly what gets faxed to the IRS. The pro forma 1120 page shows the "Foreign-Owned U.S. DE" stamp, filled header, empty body, and signature-ready format.

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