If you hold accounts in Taiwan or another country, list each one along with its highest value during the year. A cross-border tax professional can then determine whether U.S. reports such as the FBAR or Form 8938 are required — your job is a complete, timely inventory.
Reporting trigger
Ownership and authority start the clock, not transfers
You can trigger U.S. reporting without moving any money. IRS FBAR guidance says a U.S. person must file when they have a financial interest in — or signature authority over — foreign financial accounts whose aggregate value exceeds $10,000 at any time during the year.
That threshold is across all accounts, not per account. Several smaller Taiwan accounts can combine into a filing requirement even if none looks significant on its own.
Inventory everything on the list below — then settle the question underneath it: whether you are a U.S. person at all this year.
- Taiwan bank accounts
- Brokerage accounts
- Employer or family signature authority
- Foreign retirement or savings accounts
- Accounts held jointly
- Maximum value during the year
Residency
First settle whether you are a U.S. person this year
As a TSMC transferee you can become a U.S. tax resident through immigration status or the substantial presence test — and your exact arrival date and travel history matter.
Residency status also affects whether your worldwide income is reportable on the U.S. return. The conclusion belongs to a tax professional; your part is having the financial inventory ready when they ask. From there, the paperwork splits in two.
Form 8938
FBAR and Form 8938: related, never interchangeable
Form 8938 is filed with your federal income tax return when specified foreign financial assets exceed the applicable thresholds — thresholds and asset definitions that differ from the FBAR’s. The FBAR itself is filed separately through FinCEN’s system.
Here’s how it plays out for a typical transferee: Taiwan bank and brokerage accounts, pension or labor-retirement interests, insurance, family signature authority, perhaps a business interest. Some items may be reportable on one form but not the other, and foreign funds can receive specialized U.S. tax treatment.
You may need one form, both or neither, depending on status, asset type and values. Do not assume an FBAR replaces Form 8938 — and do not let the paperwork wait until accounts start closing.
Planning steps
Inventory first; transfers and closures later
Before you transfer or close anything, preserve year-end statements, maximum-value records, account numbers, ownership details and income records. Closing an account during the year does not erase its earlier maximum value, its income or its place in the year’s reporting history.
An advisor familiar with TSMC transferees can organize the account map for a qualified cross-border tax professional — and the file below is what that map should contain.
Your filing prep
Have the inventory finished before filing season starts
Keep one file per account: legal ownership, account number, institution, account type, maximum annual value, year-end value, income and the currency-conversion support behind the numbers. The cross-border professional decides which forms apply — you make the inventory complete and on time.
Use this as preparation, not as individualized advice — where employer benefits are involved, your current TSMC Arizona documents control, and the filing decisions belong with a qualified cross-border tax professional.
- Determine your U.S.-person status for the year
- List every non-U.S. account and any signature authority you hold
- Capture each account’s maximum and year-end values
- Identify the income and the underlying foreign investments
- Review FBAR, Form 8938 and return reporting as separate questions
Frequently asked questions
Questions employees ask next
What is the FBAR threshold?
IRS guidance says the FBAR threshold is aggregate foreign financial accounts exceeding $10,000 at any time during the calendar year.
Do TSMC employees need FBAR if they still have Taiwan accounts?
Possibly. It depends on your U.S. person status, the account types, your authority over them and the aggregate maximum values.
Is Form 8938 the same as FBAR?
No. Form 8938 and the FBAR are separate reporting regimes with different filing mechanics and thresholds.
Primary sources
What this guide is based on
You understand the issue
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