IRS Form 6166: Certification of Tax Residency - SmartAsset (2024)

IRS Form 6166: Certification of Tax Residency - SmartAsset (1)

Many foreign countries have higher income tax rates than the U.S., and others impose value added tax (VAT) charges that the U.S. does not. These foreign assessments can produce significantly higher tax bills for American individuals and companies that do business overseas. However, there is a way to have profits earned outside the U.S. taxed at the regular IRS rates rather than the other country’s rates. To qualify for these savings, U.S. citizens and businesses can submit IRS Form 6166 to the other country’s taxing authorities.

If you’re earning money outside the U.S., you should consult a financial advisor with relevant experience to make sure you don’t overpay.

Form 6166 is also known as Certification of U.S. Tax Residency. It’s just a sheet of official stationery with the U.S. Department Treasury seal on it that states the person it identifies is a U.S. resident for tax purposes for a specific year. Having a Form 6166 lets a person or business take advantage of tax treaties negotiated between many countries that allow income earned by citizens of other countries to be taxed at the earner’s home country rate and also to avoid VAT charges if there are any.

For instance, a self-employed U.S. consultant paid for a contract performed in Belgium might be taxed at that country’s top income tax rate of 50%. Using a Form 6166, he or she might instead be taxed at U.S. rates, which top out at 37%.

Eligibility to Use Form 6166

To use Form 6166 to save on foreign taxes, the U.S. business or individual requesting it must have filed a U.S. income tax return for the relevant year. If the Form 6166 covers a year for which returns aren’t yet due, the entity or person covered by the Form 6166 has to have filed a U.S. return for the most recent year.Only certain people qualify to use this tax-saving form. You can’t get a Form 6166 if you didn’t file the required return, filed as a non-resident, are a dual-resident individual planning to not continue residing in the U.S., are an entity without U.S. partners or owners, are an exempt organization not organized in the U.S. or are requesting it as a trust that is part of a newly formed employee benefit plan that isn’t administered by a bank custodian.

In addition to individuals, many different entities can request and use Form 6166. They include:

  • Partnerships
  • LLCs treated as partnership for tax purposes
  • Trusts
  • Estates
  • Corporate subsidiaries
  • Employee benefit plans
  • Federal, state and local government agencies

How to Get Form 6166

To receive a Form 6166, applicants have to file a Form 8802, Application for United States Residency Certification. This is an IRS form that applicants use to supply name, address, type of business entity, tax filing status and other details. You also have to pay an $85 fee to file the Form 8802.

Form 8802 includes a worksheet with a list of all the countries, more than 50 of them from Armenia to Venezuela, for which applicants can request Form 6166. Applicants can use a single Form 8802 to request the Form 6166 for more than one country at a time. However, they have to file a separate Form 8802 for every year for which they are requesting a Form 6166 certificate.

The Form 8802 that is used to request the Form 6166 certificate is brief, but it is an official government form. It has to be signed and dated by someone who is authorized to sign for the business or entity. There are also penalties for perjury if someone makes a misstatement on the Form 8802.

Once the Form 6166 is received from the IRS, the requesting individual or entity can send it to the foreign country’s taxing authority to claim tax treaty benefits. After the Form 6166 is received and authenticated, practices vary by country. Some immediately begin withholding taxes at the lower rate called for by the treaty. Others may withhold at their regular in-country rates and then issue refunds to tax treaty beneficiaries.

Bottom Line

Form 6166 allows U.S. citizens, businesses and other entities doing overseas to be taxed at U.S. rates rather than paying higher taxes imposed by countries where profits were earned. To get a Form 6166, applicants have to file an IRS Form 8802 and pay an $85 fee. The trouble can be well worth it, since many countries assess higher income taxes than the U.S. and may also have value-added taxes that further increase the tax bill.

Tips on Taxes

  • An individual, business or other entity that earns profits from overseas should consider working with an experienced financial advisor to help navigate the complicated waters of international taxation. SmartAsset’s free toolmatches you with financial advisors in your area in five minutes. If you’re ready to be matched with local advisors who will help you achieve your financial goals,get started now.
  • Income in America is taxed by the federal government, most state governments and many local governments. The federal income tax system is progressive, so the rate of taxation increases as income increases. Use an income tax calculator to make sure you’re paying the correct amount.

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IRS Form 6166: Certification of Tax Residency - SmartAsset (2024)

FAQs

IRS Form 6166: Certification of Tax Residency - SmartAsset? ›

How to Get Form 6166. To receive a Form 6166, applicants have to file a Form 8802, Application for United States Residency Certification. This is an IRS form that applicants use to supply name, address, type of business entity, tax filing status and other details. You also have to pay an $85 fee to file the Form 8802.

How do I get Form 6166 certification of U.S. tax residency? ›

To obtain Form 6166, a letter of U.S. Residency Certification, you must submit a completed Form 8802, Application for United States Residency Certification. A user fee is charged to process all Forms 8802. Revenue Procedure 2018-50 announced a user fee increase for non-individual applicants effective December 1, 2018.

What countries require form 6166? ›

The following countries require a country specific Form 6166 – Income Tax: Armenia, Azerbaijan, Belarus, Georgia, Greece, Kyrgyz Republic, Moldova, Portugal, Russia, Spain, Tajikistan, Turkmenistan, and Uzbekistan. All other countries take the “General” Form 6166.

What is a tax residency certificate? ›

U.S. Tax Residency Certification – Form 6166

Form 6166 is a letter printed on U.S. Department of Treasury stationery that certifies that the entity listed is a resident of the United States for purposes of U.S. taxation for the year indicated on the form.

What is the alternative form for Form 6166? ›

Use Form 8802 to request Form 6166, a letter of U.S. residency certification for purposes of claiming benefits under an income tax treaty or value added tax (VAT) exemption.

How much is the fee for Form 6166? ›

To get a Form 6166, applicants have to file an IRS Form 8802 and pay an $85 fee.

When can I submit Form 8802? ›

If you plan to file IRS Form 8802 for U.S residency certification, be sure to do so at least 45 days before you must submit Form 6166. Additionally, the IRS will only start to process Form 8802 for the subsequent calendar year on December 1st of the previous calendar year.

How do I determine my tax residency? ›

Most states will consider you a resident for tax purposes if you spend 183 days or more in that state. If you permanently moved to another state during the year, you may have to file a part-year resident return in both states.

Can a US citizen be a resident of no state? ›

You can own multiple homes in different states, but you can only be a resident of one state, that is where you will vote and pay taxes.

Am I a U.S. tax resident if I live overseas? ›

Yes, if you are a U.S. citizen or a resident alien living outside the United States, your worldwide income is subject to U.S. income tax, regardless of where you live.

Is Section 6166 interest deductible? ›

(2) If an estate makes a § 6166 election, the estate tax may be paid in up to ten installments, with the first payment of tax due not more than five years after the date prescribed for payment of the tax. However, interest on the estate tax is not deferred.

What is an IRS certification letter? ›

The IRS may send you a certified letter if there are issues with your tax return or other tax forms regarding your personal information. In this certified letter, the IRS will likely ask you to complete its identity verification process.

How do I get an IRS tax clearance certificate? ›

Most commonly, states issue clearance certificates, demonstrating that an individual is compliant with all taxes and other obligations as of the date of the certificate. Those seeking clearance certificates will have to request them from state authorities, usually the state's Department of Revenue.

How do I get a tax clearance certificate in USA? ›

In most states, the department of revenue will issue a tax clearance certificate; but in others, it might be the department of taxation, department of finance, secretary of state, or another agency. Many states provide forms for requesting a tax clearance online. Others require you to submit a written request.

How to get a certificate of residency in NY? ›

You obtain a Certificate of Residence FROM THE COUNTY of your permanent address by providing proof of residency. It is recommended that you contact your County's designated office for information on how to obtain a Certificate of Residence. Refer to the List of New York State County & Local Offices.

How do I become a U.S. tax resident? ›

If you are not a U.S. citizen, you are considered a nonresident of the United States for U.S. tax purposes unless you meet one of two tests. You are a resident of the United States for tax purposes if you meet either the green card test or the substantial presence test for the calendar year (January 1 – December 31).

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