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Accurate, stress-free tax preparation for residents, expats, and cross-border professionals. Our licensed CPAs handle your return from start to finish, finding every eligible deduction and credit.

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Free Tax & Refund Estimator • 2025 / 2026 Rules

Estimate Your Tax Position in 2 Minutes

Check whether you file as a resident (Form 1040) or nonresident (Form 1040-NR), apply the standard deduction, and see an estimated federal refund before you file.

1040 / NR
Residency Check
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Standard Deduction
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Sample Calculation
Tax Year 2025/2026
Estimated Federal Tax Refund
+$1,850.00
Form 1040 Resident • Single Filer
Residency Status Form 1040 (Resident)
Standard Deduction $15,000.00
Substantial Presence Test 185 Days (Met)
Review by Licensed CPA Included
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Tax Services

Tax Filing Services for Every Situation

Every return is carefully prepared and reviewed by licensed CPAs, with full 256-bit vault security.

Filing Process

How We Prepare & File Your Return

A straightforward, transparent process designed to save you time and maximize eligible deductions.

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1. Tell Us About Your Year

Answer straightforward questions about your income, moves, and visa status through our simple online questionnaire.

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2. Upload Tax Documents

Securely upload your W-2s, 1099s, and financial statements directly into your private, encrypted client vault.

03

3. CPA Preparation & Review

A licensed CPA reviews your documents, calculates your deductions and treaty benefits, and prepares a complete draft return.

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4. Review, Sign & E-File

Review your tax return, sign Form 8879 electronically from your phone or computer, and we file directly with the IRS.

Licensed Senior CPA Advisory

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Tax Strategy Consultation

Speak directly with a licensed CPA about your visa status, foreign accounts (FBAR/FATCA), multi-state moves, or small business filings.

Charlotte HQ: US Eastern (EST)
Cross-Border Desk: India (IST)
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Licensed CPAs & Enrolled Agents Direct guidance from experienced practitioners who handle your file personally.
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Areas of Expertise

Real-World Scenarios Handled Daily by Our Tax Team

From tech professionals with overseas assets to students on OPT and cross-border business founders, here is how our CPAs resolve complex filing requirements.

H-1B & L-1 Expats

Dual-Status & Foreign Asset Reporting

Full preparation of Form 1040 with foreign bank accounts (FinCEN 114 / FBAR), FATCA Form 8938 reporting, overseas mutual fund analysis (PFIC), and India NRE/NRO fixed deposit interest tax credits under the US-India Double Tax Treaty (DTAA).

Core Filings: 1040 • FBAR • 8938
F-1 Students & OPT

Nonresident Returns & Treaty Benefits

Preventing incorrect resident filing software errors. We verify exempt individual days under the Substantial Presence Test, file Form 1040-NR with Form 8843, and claim eligible standard deduction benefits under US-India Tax Treaty Article 21(2).

Core Filings: 1040-NR • Form 8843
ITIN & Dependents

Certified Acceptance Agent (CAA) Services

Obtain an Individual Taxpayer Identification Number (ITIN) for your spouse or children without mailing original passports to the IRS. As an authorized CAA service, we certify your identification documents directly.

Core Filings: Form W-7 • CAA Certification
US Businesses & LLCs

Entity Compliance & Multi-State Returns

Complete tax compliance for single-member LLCs with foreign owners (Form 5472 and pro-forma Form 1120), multi-member partnerships (Form 1065 / Schedule K-1), and S-Corporations with reasonable salary and distribution planning.

Core Filings: Form 1120 / 5472 • 1065
Instant Answers

Frequently Asked
Tax Questions

Clear guidance on Substantial Presence, Form 1040 vs. 1040-NR, foreign assets (FBAR/FATCA), and filing deadlines.

Need Specific Tax Advice?

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

+1 (704) 303-9095 Browse Full Knowledgebase →
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.
How do I know whether I need to file Form 1040 or Form 1040-NR?
Your US tax residency is governed strictly by IRC § 7701(b). If you are a US Citizen, Lawful Permanent Resident (Green Card holder), or meet the 183-day Substantial Presence Test (SPT), you are a Resident Alien and must file Form 1040. If you do not meet the SPT or are an "exempt individual" (such as an F-1 student in your first 5 calendar years or J-1 scholar in your first 2 years), you are a Nonresident Alien and must file Form 1040-NR. Nonresidents report only US-sourced income, whereas residents report worldwide income.
What happens if I filed Form 1040 instead of Form 1040-NR by mistake using TurboTax?
Generic software packages only support resident Form 1040 and cannot file Form 1040-NR. Erroneously filing Form 1040 allows you to claim standard deductions ($14,600+) you are legally not entitled to, which the IRS treats as an inaccurate return. During future immigration proceedings (such as H-1B stamping, PERM labor certification, or Green Card interviews), USCIS officers routinely review prior tax transcripts. To fix this, you must file an amended return using Form 1040-X with an attached Form 1040-NR to correct your filing status and pay any tax differential before the IRS detects it.
What is the First-Year Choice election under IRC § 7701(b)(4)?
If you arrived in the United States mid-year on an H-1B, L-1, or O-1 visa and did not pass the Substantial Presence Test in your arrival year, you may be eligible to make the "First-Year Choice" election. Under this election, you agree to be treated as a resident alien from your physical arrival date through December 31, allowing you to itemize deductions or claim joint filing benefits if you remain in the US and meet the SPT in the immediately following calendar year.
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.
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.