What are New York's filing requirements for a foreign-owned single-member LLC?

Like the IRS, New York State treats a single-member LLC as a disregarded entity for tax purposes. This means the LLC itself does not pay New York State income tax. Instead, the income flows through to the owner.

However, as a nonresident alien earning income from New York sources, you are subject to New York State personal income tax on that income. You would need to file Form IT-203 (Nonresident and Part-Year Resident Income Tax Return) to report the $50,000 in New York-source consulting income.

New York imposes an annual filing fee on LLCs under Tax Law Section 658(c)(4). This fee is based on the LLC's New York-source gross income and ranges from $25 to $4,500. The fee is reported on Form IT-204-LL.

For a single-member LLC, the fee is based on the LLC's New York-source gross income: - $0 to $100,000: $25 - $100,001 to $250,000: $50 - $250,001 to $500,000: $175 - $500,001 to $1,000,000: $500 - $1,000,001 to $5,000,000: $1,500 - $5,000,001 to $25,000,000: $3,000 - Over $25,000,000: $4,500

With $50,000 in NY-source income, your annual filing fee would be $25. This is due on the 15th day of the 3rd month after the close of the tax year (March 15 for calendar-year filers).

As a nonresident alien with New York-source income, you are taxed at New York's regular income tax rates on that income. New York rates are progressive, ranging from 4% to 10.9% (as of 2025 rates).

For $50,000 in taxable income, you would owe approximately $2,500 to $3,000 in New York State income tax, depending on deductions and credits. You must also make estimated tax payments quarterly if you expect to owe more than $300 in state tax.

New York estimated tax payments are due on the same schedule as federal estimated payments: April 15, June 15, September 15, and January 15.

If your business activity is specifically within New York City, there may be additional considerations. NYC imposes an Unincorporated Business Tax (UBT) on individuals and unincorporated businesses (including single-member LLCs) with NYC-source gross income exceeding $95,000.

The UBT rate is 4% on taxable income over $65,000 (with certain deductions and credits). Since your LLC income is $50,000, you would likely fall below the $95,000 gross income threshold for the UBT and would not owe this tax.

However, if your income from NYC sources exceeds $95,000 in the future, you would need to file Form NYC-202 (Unincorporated Business Tax Return) and pay the 4% UBT.

The U.S.-UK tax treaty may affect your New York State tax obligations. Under the treaty, business profits earned by a UK resident are generally only taxable in the UK unless you have a permanent establishment (PE) in the United States.

If you can establish that you do not have a PE in the U.S., you may be exempt from both federal and state income tax on your consulting income. However, New York State does not automatically follow treaty provisions — you may need to attach a treaty-based return position disclosure.

This is a complex area where professional advice is strongly recommended, as the PE determination depends on specific facts about how you provide your consulting services.

Here is a summary of your New York filing obligations:

1. Form IT-204-LL (LLC filing fee): Due March 15. File even if the fee is only $25. 2. Form IT-203 (Nonresident income tax return): Due April 15. Report your NY-source income and calculate state tax owed. 3. Estimated tax payments: Due quarterly (April 15, June 15, September 15, January 15) if you expect to owe more than $300. 4. NYC UBT (Form NYC-202): Only required if NYC-source gross income exceeds $95,000.

Late filing penalties for Form IT-204-LL can be significant — the penalty is $50 per month per member (minimum $50), which for a single-member LLC means $50/month up to a maximum equal to the filing fee.

All forms can be filed electronically through the New York State Department of Taxation and Finance website.