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AI-Powered U.S. Corporate Tax Filing
for Domestic and Cross-Border Businesses
Reviewed and Filed By Licensed U.S. CPAs
One-stop U.S. Corporate tax filing for domestic and foreign-owned U.S. companies
Form 1120 & Form 5472 filing for U.S. Corporation
(IRS annual deadline applies)
Skip the complexity.
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If your books are ready, submit your basic info in just 1 minute.
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Our system will instantly match you with our Standard Filing process.
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We will confirm your data eligibility within 24 hours.
✔ Reviewed by US CPAs | ✔ AI Automation | ✔ Cross-Border Compliance
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Who We Are
IAt CrossBorderstax, we believe cross-border compliance shouldn’t be a maze — it should be a system.
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Founded by a U.S. Certified Public Accountant with Big4 and multinational finance experience,
we combine AI automation with professional expertise to simplify U.S. tax filing.
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Our mission is simple:
To make U.S. tax compliance clear, efficient, and intelligent.
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From document upload to AI data mapping and CPA review,
every step is transparent, accurate, and designed for growth-minded entrepreneurs.
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We’re more than a filing platform — we’re your AI-powered tax partner,
bridging borders with clarity, compliance, and trust.
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Smart Tax. Human Touch.
Pricing
Transparent Compliance Fees
for 2026 Tax Season
Select Your Compliance Tier
MOST POPULAR
BEST VALUE
Foreign Ownership Tax filing (Form 5472）applies where required and is priced separately.
Need More Time
Running out of time for Form 1120?
Get an instant 6-month extension first.
Our Extension service (Form 7004) is a premium feature included in all Filing Plans.
Choose a plan to secure your extension and lock in your tax seat today
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Note: Form 7004 extends the filing period only. Estimated tax payments remain due by April 15th.
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The Private Reserve: Total Financial Sovereignty.
A premium, end-to-end fiscal governance suite for high-scale multinational enterprises ($10M+ Revenue). We do not just file your taxes; we architect your entire financial truth.
The Core Framework
Investor-Grade Financial Engineering
We transform your raw trial balance into precision-engineered Financial Statements (Balance Sheet, Income Statement, Retained Earnings). We bridge the critical data gap between your daily bookkeeping and your federal tax obligations.
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Advanced Corporate Tax Architecture
Precision filing for Form 1120 and complex Form 5472 disclosures. Our proprietary mapping logic ensures that every international transaction is disclosed with surgical accuracy.
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The "Clean-Book" Guarantee
True peace of mind through a multi-layered automated audit trail. Every figure on your return is reconciled back to your financial records, creating a bulletproof defense for your enterprise.
The Value of Certainty
At this scale, the risk isn't just the tax—it's the disconnect between accounting data and IRS requirements. We eliminate that friction by unifying your Financial Statements, Strategic Bookkeeping, and Tax Compliance into one seamless intelligence. We don't just report; we protect your $10M+ legacy.