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business entity • IRS Authorized e-File

US Business Entity Returns (1120-S / 1065 / 1120)

Federal and multi-state corporate tax preparation for US LLCs, S-Corporations, Partnerships, and cross-border subsidiaries.

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Statutory IRS Filing Schedule: March 15 Annually (Form 1065 & 1120-S) / April 15 Annually (Form 1120 C-Corp)
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Regulatory Compliance & Advisory

US Corporate & Partnership Tax Services (Form 1120, 1120-S & 1065)

Corporate and pass-through entities operating in the United States face multifaceted federal and state compliance requirements. S-Corporations (Form 1120-S) and Multi-Member LLCs (Form 1065) must compute net ordinary business income, track partner capital accounts, determine reasonable officer compensation, and issue Schedule K-1s to stakeholders by the statutory deadline.

For foreign-owned US Single-Member LLCs, Internal Revenue Code § 6038A imposes strict information reporting requirements on Form 1120 and Form 5472. Failure to submit Form 5472 carries an automatic statutory penalty of $25,000 per violation per year, even if the entity generated zero revenue. Our CPAs guarantee total statutory compliance.

IRS Authorized e-File Provider
100% Dual-Tier CPA Review
Publication 4557 Vault Security
Direct CPA Review

Ready to start your filing?

Complete our simple questionnaire and securely upload your tax forms. Our CPAs will review everything and prepare your return.

Direct Line: +1 (704) 303-9095
Office: Charlotte, NC 28215
Eligibility

Who is this service designed for?

Statutory filing categories and taxpayer profiles tailored for this specialized service.

1 Taxpayer Profile

US LLCs electing S-Corporation status to minimize self-employment tax liabilities.

2 Taxpayer Profile

Multi-member LLCs, joint ventures, and partnerships requiring Form 1065.

3 Taxpayer Profile

Foreign-owned US Single Member LLCs requiring Form 1120 and Form 5472 disclosures.

4 Taxpayer Profile

Operating C-Corporations with domestic and cross-border operations.

Tax Optimization Strategy

Key Statutory Provisions & Tax Deductions We Maximize

Every tax return is optimized under current Internal Revenue Code regulations to secure every legally allowable credit and deduction.

$25,000 Penalty Prevention

Form 5472 Foreign Ownership Defense

Mandatory reporting for 25%+ foreign-owned US LLCs under IRC § 6038A. We document related-party transactions, capital transfers, and loans to avert statutory fines.

IRC § 199A Pass-Through Relief

Section 199A QBI 20% Deduction

We capture the 20% Qualified Business Income deduction for eligible sole proprietors, partners, and S-Corp shareholders to shield business profits from higher brackets.

FICA Tax Reduction

S-Corp Officer Salary Optimization

We establish defensible "reasonable compensation" benchmarks under IRS guidelines, maximizing shareholder distributions to legitimately reduce 15.3% self-employment taxes.

Immediate Asset Write-Off

Section 179 & Bonus Depreciation

Accelerated expensing of qualifying machinery, computers, software, and operational equipment placed in service, generating immediate tax deductions against operating revenues.

Process & Workflow

How Our Dedicated CPAs Prepare Your Return

A transparent, step-by-step pathway from secure document gathering to direct IRS acceptance.

01

Financial Statement Intake & Review

Upload your trial balance, P&L, balance sheet, bank summaries, and partner cap tables.

02

Tax Classification & Adjustment Audit

Our CPA executes GAAP-to-tax adjustments, depreciation schedules, and QBI calculations.

03

Schedule K-1 Generation & Reconciliation

Partner capital accounts are reconciled and individual Schedule K-1 packets are compiled.

04

Corporate MeF e-Filing & State Submissions

Direct federal and state transmission with certified e-file confirmation and partner distribution.

Preparation Checklist

Documents You Will Need

  • Profit & Loss Statement (Income Statement) and Balance Sheet for the fiscal year.
  • Bank statements and credit card merchant processing summaries (Stripe/PayPal).
  • Ownership percentage table, partner capital accounts, and EIN confirmation (CP 575).
  • Form 1099-NEC / 1099-MISC copies issued to US independent contractors.
  • State corporate registration documents and prior year business returns.
Included Scope

What Is Included in This Service

  • Form 1120, 1120-S, or 1065 Preparation & Filing
  • Schedule K-1 Partner/Shareholder Distributions
  • State Franchise & Corporate Excise Tax Compliance
  • Foreign Ownership Reporting (Form 5472 / 1120)
  • CPA Bookkeeping Reconciliation & Asset Depreciation
Taxpayer Protection & Risk Defense

Common Mistakes We Help You Avoid

Tax filing errors can result in delayed refunds, unnecessary interest, or IRS audit notices. Here is how our CPAs protect you:

Risk Point #1

Pitfall #1

Severe $25,000 penalty per violation under IRC § 6038A for failure to file Form 5472 for foreign-owned US LLCs.

CPA Audited & Prevented
Risk Point #2

Pitfall #2

Late Schedule K-1 filing penalty of $220 per month per partner.

CPA Audited & Prevented
Risk Point #3

Pitfall #3

State franchise tax administrative dissolution for failing to submit annual reports.

CPA Audited & Prevented
Instant Answers

Frequently Asked
Tax Questions

Authoritative guidance on filing US Business Entity Returns (1120-S / 1065 / 1120), required documentation, and IRS compliance rules.

Need Specific Tax Advice?

Our licensed CPAs in Charlotte, NC are on standby for personalized consultations.

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Does a foreign-owned Single Member LLC have to file US taxes if it had no US income?
Yes! Foreign-owned single-member LLCs are treated as reporting corporations under IRC § 6038A and must file Form 1120 and Form 5472. Failure to file carries an automatic $25,000 penalty even with zero profits.
When are Schedule K-1s due to partners?
Schedule K-1s must be distributed by the statutory partnership filing deadline (March 15, or September 15 under Form 7004 extension) so partners can report their personal taxes.
How do I know if I need to file Form 1040 or Form 1040-NR?
Your US tax residency status is determined by the IRS Substantial Presence Test (SPT) under IRC § 7701(b). You are classified as a Resident Alien (filing Form 1040) if you were physically present in the US for at least 31 days in 2026 AND 183 weighted days over a 3-year period (all current year days + 1/3 prior year days + 1/6 second prior year days). If you do not meet this threshold, you file Form 1040-NR as a Nonresident Alien. Students on F-1 visas are exempt individuals for their first 5 calendar years and generally file Form 1040-NR regardless of physical presence.
Who is legally required to file FinCEN Form 114 (FBAR)?
Under 31 U.S.C. § 5314, every US person (including US citizens, Green Card holders, and resident aliens on H-1B/L-1 visas meeting the SPT) who has a financial interest in or signature authority over foreign financial accounts must file an FBAR if the aggregate peak balance of all accounts exceeded $10,000 USD at any point during the calendar year. This includes Indian NRE, NRO, FCNR, Demat, mutual funds, EPF, and PPF balances. Nonresident aliens (Form 1040-NR filers) are exempt from FBAR filing.
How does UniFinTax protect my sensitive financial and tax documents?
UniFinTax operates under strict IRS Publication 4557 cybersecurity safeguards. All client documents are stored outside the public web root in an authenticated AES-256-GCM encrypted vault. User sessions feature 15-minute idle timeouts, and every staff action is permanently recorded in a cryptographically signed HMAC-SHA256 audit ledger.
Can UniFinTax file both Federal and Multi-State tax returns?
Yes. Our licensed CPAs and Enrolled Agents prepare returns for all 50 states, including part-year resident returns for clients who relocated between states during the tax year (e.g. moving from California to North Carolina or Texas), ensuring double taxation is prevented through reciprocal tax credits.
Ready to Begin?

Get Your US Business Entity Returns (1120-S / 1065 / 1120) Prepared by Licensed CPAs

Upload your tax documents securely to your encrypted vault. Our CPAs will calculate your maximum allowable refund and ensure total IRS compliance.

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Zero upfront payment required to upload Direct e-File with IRS confirmation 100% CPA Audit Defense included