1. Start Cfius Screening before Deal Terms Are Set
Early screening gives the parties time to find filing issues before they affect closing. Start with the investor, target, ownership rights, assets, and deal structure.
Test the Deal for Cfius Jurisdiction
CFIUS may review covered control transactions and some non-controlling investments in TID U.S. .usinesses. Part 802 covers certain real estate deals.
- Map direct and indirect foreign ownership.
- Identify board, access, control, and decision rights.
- Screen technology, infrastructure, data, and real estate.
Keep State Review on a Separate Track
CFIUS review does not replace state approvals. A regulated target may require a separate filing before closing.
- Check the target's licenses and regulated activities.
- Identify control rules that may apply to the deal.
- Use Regulatory Compliance review to map parallel filings.
2. Choose the Cfius Filing Route Early

The filing route affects preparation and timing. Foreign investment regulatory counsel in Manhattan should test mandatory rules before comparing a declaration with a notice.
Check Mandatory Filing Rules First
Under 31 C.F.R. Part 800, filing is mandatory for certain transactions involving a substantial foreign-government interest. Some critical-technology transactions also trigger filing under § 800.401.
- Trace relevant government ownership.
- Review export classifications and required authorizations.
- File a mandatory submission at least 30 days before completion.
Match the Filing to the Deal
A declaration is a short-form filing with a 30-day assessment. Once accepted, a voluntary notice begins an initial review of up to 45 days.
- Compare transaction risk with the declaration route.
- Consider whether a full notice better fits known concerns.
- Use CFIUS Compliance review when choosing the filing path.
3. Build a Clean Record before Filing
Ownership and target records take time to collect. Early work lets the parties fix gaps before formal review.
Trace the Foreign Ownership Chain
The filing should accurately describe the investor and relevant owners. Funds and holding companies may require facts from several levels.
- Prepare an ownership chart with voting interests.
- Identify relevant direct and indirect owners.
- Check citizenship and government interests where required.
Check the Target'S Business Facts
Technology, data, facilities, customers, and government ties can affect CFIUS analysis. Regulatory answers should match deal documents.
- Confirm technology and export classifications.
- Identify sensitive data and infrastructure links.
- Check filing answers against transaction records.
4. Track the Formal Review Clock
Drafting time is not the formal review period. Deal teams should separate preparation from the statutory clock.
Know When the Cfius Clock Starts
CFIUS has 30 days to assess a declaration. For a voluntary notice, Day 1 of the 45-day review is the date the Staff Chairperson accepts the notice.
- Record submission and acceptance dates separately.
- Match the closing calendar to the review period.
- Allow time for investigation or mitigation discussions.
Track State Approval on Its Own Calendar
State banking review follows a separate process. For a covered banking institution, direct or indirect acquisition of 10% or more of voting stock requires a DFS control application.
- Confirm that the target is a covered institution.
- Review the full control structure, not only share count.
- Use Banking and Financial Institutions review when needed.
5. Prepare for Questions and Mitigation
Review may continue after filing. The parties may need to explain ownership, technology, operations, or post-closing plans.
Keep Follow-Up Answers Consistent
CFIUS may ask for more facts during review. A reliable internal record helps the deal team respond without creating conflicts with earlier submissions.
- Assign an owner to each response topic.
- Check new answers against prior filings.
- Record material deal changes during review.
Test Mitigation against the Business
When CFIUS identifies national-security risk, mitigation may address access, governance, security, operations, or reporting. Proposed terms should work in day-to-day operations.
- Link each measure to the concern it addresses.
- Decide who will manage each ongoing duty.
- Check whether deal documents need changes.
6. Move from Clearance to Compliance
Clearance may end review, but mitigation can create post-closing duties. Those terms need owners, deadlines, and internal controls.
Turn Mitigation Terms into Tasks
Access limits, security controls, notices, and certifications may involve several teams. Assigning the work before closing can reduce integration gaps.
- Assign an owner to each continuing duty.
- Calendar reports, notices, and certifications.
- Create a path for reporting possible failures.
Keep the Filing Record with the Deal
Integration may begin soon after clearance. The transaction team should keep the final regulatory record available as later decisions are made.
- Retain final filings and clearance documents.
- Brief integration teams on ongoing limits.
- Use Cross-Border Deals planning for related transaction work.
7. Frequently Asked Questions
Can a foreign investor close before CFIUS finishes its review?
It depends on the deal. A transaction subject to mandatory filing rules must meet the required pre-closing timing. Parties to other covered transactions may still seek voluntary clearance before closing.
Does a CFIUS declaration guarantee clearance in 30 days?
No. CFIUS must act within the 30-day assessment period, but it can request a notice, conclude action, state that it cannot conclude action, or initiate a unilateral review.
Does every foreign investment require a CFIUS filing?
No. CFIUS jurisdiction and mandatory filing are separate questions. Investor identity, ownership rights, technology, infrastructure, data, real estate, and government interests can affect the analysis.
Can CFIUS review a deal after it closes?
Yes. CFIUS may review a covered transaction that was not previously cleared, including a completed deal. Pre-closing screening still matters when filing appears voluntary.
8. Keep Regulatory Review Tied to the Deal Calendar
CFIUS review is easier to manage when filing choices, government questions, and closing terms stay on one timeline. SJKP's attorneys can review federal filing issues, parallel approvals, mitigation terms, and post-closing duties. Foreign investment regulatory counsel in Manhattan can help the deal team plan regulatory steps before they become closing issues.
24 Aug, 2026

