Effectively Connected Income (ECI) vs FDAP Income: How NRIs Are Taxed Differently

TL;DR (Quick Summary)

• Not all income earned by NRIs in the US is taxed the same way.
• Salary and work-related income are usually treated as Effectively Connected Income (ECI) and taxed at normal US tax rates.
• Passive income like dividends, interest, or royalties is typically classified as FDAP income and taxed at a flat 30% rate (unless reduced by a tax treaty).
• The type of income you earn determines whether you can claim deductions and which section of Form 1040-NR you must use.
• If you have multiple income sources, it’s often wise to consult a US NRI tax expert to ensure correct reporting and avoid paying more tax than necessary.

Why Understanding ECI vs FDAP Matters for NRIs

Many NRIs get confused during tax filing because different types of income are taxed in different ways under US tax law.

For example:

• Your salary from a US employer may be taxed using regular tax brackets.
• But dividends from US stocks may automatically be taxed at 30%.

This difference happens because the IRS classifies nonresident income into two categories – ECI and FDAP Income:

1. Effectively Connected Income (ECI)
2. Fixed, Determinable, Annual, or Periodical (FDAP) Income

Understanding which category your income falls under can affect:

• Your tax rate
• Whether you can claim deductions
• The forms and schedules you need to file

If you’re unsure how your income should be classified, it’s a good idea to connect with a US NRI tax expert before filing, especially if you have salary plus investment income.

What Is Effectively Connected Income (ECI)?

Effectively Connected Income (ECI) refers to income that is directly connected to a US trade or business.

In simple terms, this usually means income you earn from working or operating in the US.

Common Examples of ECI

• Salary or wages from a US employer
• Internship or part-time income
• Consulting or freelance work in the US
• Certain types of business income

For most NRIs working in the US on F-1, H-1B, L-1, or similar visas, their primary income will fall under ECI.

How ECI Is Taxed

ECI is taxed similar to how US citizens and residents are taxed.

This means:

• Graduated tax rates apply (tax brackets)
• Deductions may be allowed
• Income is reported on the main section of Form 1040-NR

For example:

If an H-1B professional earns $80,000 in salary, the tax is calculated based on progressive US tax brackets, not a flat rate.

This is one reason why proper classification is important.

If you’re unsure whether certain income should be reported as ECI or something else, it may be worth speaking with a US NRI tax specialist before filing.

What Is FDAP Income?

FDAP income stands for Fixed, Determinable, Annual, or Periodical income.

This type of income is generally passive income earned from US sources and not directly connected to a business or employment in the US.

Common Examples of FDAP Income

• Dividends from US companies
• Interest income from certain US investments
• Royalties
• Some types of rental income
• Certain annuities or periodic payments

Unlike ECI, FDAP income is not taxed using tax brackets.

How FDAP Income Is Taxed

FDAP income is typically taxed at a flat 30% rate.

In most cases:

• The tax is withheld at the source
• The payer (bank, brokerage, or company) deducts the tax before paying you

This means you might receive only 70% of the income after withholding.

FDAP income is usually reported on Schedule NEC of Form 1040-NR.

However, many NRIs overpay taxes on FDAP income because they don’t claim tax treaty benefits or classify income correctly.

If you earn dividends, interest, or other investment income in the US, it can be helpful to consult a US tax expert to review your withholding and treaty eligibility.

Why Deductions Usually Do Not Apply to FDAP Income

One key difference between ECI and FDAP Income is deductions.

With ECI

You may be able to claim deductions such as:

• Certain business expenses
• State taxes
• Other allowable deductions

With FDAP

Generally:

• No deductions are allowed
• The full amount is taxed at 30%

This is why correct classification is so important.

In some situations, rental income can be treated differently, allowing deductions if an election is made.

Must read: Top Deductions and Exemptions NRIs Can Claim in 2026

Salary vs Investment Income: Why They Are Taxed Differently

Let’s look at a simple example.

Example

An NRI working in the US earns:

• $70,000 salary
• $2,000 dividends from US stocks

Here’s how the IRS may treat them:

So even though both incomes are earned in the US, they follow different tax rules.

This is where many NRIs get confused during tax filing.

If your income includes both employment and investment sources, it’s often worth getting professional guidance to ensure everything is reported correctly.

Rental Income for NRIs: ECI or FDAP?

Rental income from US property is an interesting case.

By default, rental income may be treated as FDAP income, meaning:

• Taxed at 30% on gross income
• No deductions allowed

However, NRIs can sometimes elect to treat rental income as ECI.

If this election is made:

• Income is taxed at regular tax rates
• Expenses like maintenance, property tax, and mortgage interest may be deductible

This election can significantly reduce tax liability in some cases.

Because this decision can impact your tax bill, many NRIs choose to review their situation with a US NRI tax expert before filing.

How the India–US Tax Treaty Can Help

The India–US tax treaty can reduce taxes on certain types of income.

For example, the treaty may provide lower withholding rates on some FDAP income categories.

Examples may include:

• Reduced tax rates on certain dividends
• Reduced tax on royalties
• Protection against double taxation

However, treaty benefits are not always applied automatically.

You often need to claim them properly when filing your return.

If you believe you qualify for treaty benefits, it can be helpful to discuss your situation with a tax expert familiar with NRI taxation.

Real Examples for NRIs

Example 1: F-1 Student

An F-1 student earns:

• Internship salary
• Small dividend income from US investments

Salary → ECI
Dividends → FDAP

Different tax treatments apply to each.

Example 2: H-1B Professional

An H-1B worker earns:

• Salary from employer
• Interest from US savings account
• Dividends from US stocks

Salary is taxed under ECI rules, while investment income may fall under FDAP rules.

Example 3: NRI With US Rental Property

Rental income could be:

• FDAP by default, or
• ECI if election is made

This decision affects whether deductions can be claimed.

Conclusion

For NRIs filing taxes in the US, not all income is taxed the same way.

The IRS separates nonresident income into two categories:

• Effectively Connected Income (ECI) — usually employment or business income taxed at normal rates with possible deductions.
• FDAP income — passive income typically taxed at a flat 30% rate with limited deductions.

Understanding this difference can help you:

• Avoid incorrect tax calculations
• Claim applicable deductions or treaty benefits
• Prevent paying more tax than required

If your income includes salary, investments, or rental property, it’s often worth taking a few minutes to review your tax situation with a US NRI tax expert before filing.

FAQs

What is the difference between ECI and FDAP income?

ECI refers to income connected to a US trade or business (like salary or consulting income). FDAP income generally refers to passive income such as dividends, interest, and royalties.

Why is FDAP income taxed at 30%?

The IRS applies a flat 30% withholding tax on most passive income earned by nonresident aliens, unless a tax treaty provides a lower rate.

Can NRIs claim deductions on FDAP income?

Generally, deductions are not allowed for FDAP income. However, in certain cases like rental income, an election can allow the income to be treated as ECI, which may permit deductions.

Is salary considered ECI?

Yes. Income earned from employment or services performed in the US is typically treated as Effectively Connected Income.

Can the India–US tax treaty reduce FDAP taxes?

Yes. The treaty may allow lower withholding rates on certain types of income, but you usually need to claim these benefits when filing your tax return.