OPT to H-1B:
The Tax Transition Guide
Moving from F-1 to H-1B is a career milestone, but it creates a messy "Dual-Status" tax year. Incorrect filings can lead to IRS audits, lost refunds, and issues with future Green Card applications.
1. The Transition Year Timeline
For most H-1B approvals (Cap Subject), your status changes on October 1st. This splits your tax year into two distinct legal phases.
Jan 1 β Sept 30 (F-1 Status)
You are typically a Nonresident Alien (if within your 5-year exempt period).
β FICA Exempt: No Social Security/Medicare tax.
β Bank Interest: Tax-free.
β Global Income: Only US income is taxed.
The "Cap-Gap" (April β Sept)
Even if your OPT card expires, Cap-Gap extends your work authorization. Crucial: Your tax status does not change yet. You remain FICA exempt. Watch your paystubs closely during these months!
Oct 1 β Dec 31 (H-1B Status)
You become a Resident Alien (for tax purposes) if you pass the Substantial Presence Test.
β FICA Required: 7.65% tax begins immediately.
β Global Tax: You are now taxed on worldwide income (home country accounts, family investments).
2. H-1B "Paycheck Shock" Calculator
On October 1st, your take-home pay will decrease by 7.65% because you lose the FICA exemption. This often catches new H-1B holders by surprise.
3. Choosing How to File (Critical)
You cannot use standard software like TurboTax for this year. You have two complex choices.
| Feature | Option A: Dual-Status | Option B: First-Year Choice |
|---|---|---|
| Tax Status | Part Nonresident / Part Resident | Treat as Resident for Full Year |
| Standard Deduction | β Not Allowed ($0) | β Allowed ($14,600+) |
| Global Income | Only taxed Oct-Dec | Taxed Jan-Dec (Full Year) |
| Joint Filing | Not allowed (MFS) | Allowed (MFJ) *Requires statement |
| Best For... | Single filers with high foreign income | Married filers or those with low foreign income |
4. The Hidden Traps: RSUs & Foreign Accounts
Tech professionals often face double taxation issues during the transition.
π RSU Double Taxation
If you were granted RSUs while on F-1 status (Nonresident) but they vest while on H-1B (Resident), taxation gets complicated.
- The Risk: Your home country might tax the grant, and the US taxes the vest.
- The Fix: You may need to claim Foreign Tax Credits (Form 1116) to avoid paying twice.
- Cost Basis: Ensure your brokerage (E*Trade, Fidelity) has the correct cost basis, or you will be taxed on the full amount!
π FBAR (FinCEN 114)
Once you become a Resident Alien (Oct 1), you fall under FBAR rules.
- The Rule: If the aggregate value of your foreign accounts exceeds $10,000 at any time.
- What Counts: Savings, checking, mutual funds, and life insurance with cash value in your home country.
- Penalty: Starting at $10,000 for non-willful failure to file. Do not skip this!
5. State Residency Traps
Did you move for your new H-1B job? State residency rules differ from federal ones.
New York
The 183-Day Rule
Even if you are a federal nonresident, spending >183 days in NY makes you a full-year NY Resident. You may need to file IT-201.
California
Domicile Test
CA is aggressive. If you have an H-1B, they assume you are a resident from day 1 of arrival. Global income is taxed immediately.
Massachusetts
No Treaties
MA does not honor most federal tax treaties. You may owe state tax on income that is federally exempt.
6. Frequently Asked Questions
Can I use TurboTax or Sprintax?
What if my H-1B was denied or I am still on Cap-Gap?
Does my H-4 spouse need to file?
I forgot to tell my employer to start FICA taxes. What now?
Professional Filing Packages
We specialize in H-1B transitions. Every return includes a CPA review.
Standard
No Status Change
- β Federal 1040 or 1040-NR
- β 1 State Return
- β Electronic Filing
Dual-Status
F-1 to H-1B Transition
- β Dual-Status Statement
- β First-Year Choice Election
- β FICA Refund Review
- β Treaty Analysis
Complex / RSU
Investments & FBAR
- β RSU Cost Basis Adjustments
- β Crypto Reporting
- β FBAR (FinCEN 114) Filing
Start Your Transition Filing
Fill out this secure intake. An international tax specialist will review your visa history to determine the best filing strategy.