Schedule a Demo
< Back

What is FDAP?

FDAP stands for Fixed, Determinable, Annual, or Periodical income. It is a broad category of income under U.S. tax rules that includes payments such as interest, dividends, rents, royalties and certain compensation.

What does FDAP Mean?

TermMeaning
FixedIncome is considered to be fixed when a person knows ahead of time the amount of income that will be paid. 
DeterminableIf there is a basis for determining the amount of payment, then the amount of income will be considered to be determinable.   
AnnualThis means that the income is paid on an annual or yearly basis; however, the interval of time does not have to be exact. 
PeriodicalIncome is periodic if it is paid from time to time. The timing does not have to be at regular intervals or on an annual basis.  The timing between payments may increase or decrease. This includes income that is paid in a series of repeated payments or in a single lump sum.  

Some common forms of FDAP income that may impact tax, accounts payable, treasury, legal, and other operations departments include:

  • Compensation for personal services
  • Dividends
  • Interest
  • Royalties
  • Rents

These are just some of the income types.

How do withholding agents determine whether a payment is FDAP?

Personnel working with U.S. withholding agents, payors in a tax department, and any other departments associated with U.S. federal tax withholding and information reporting should consider all of these questions:

  • Is the payment FDAP income?
  • What is the character of the payment (is it one of the above-mentioned examples)?
  • Is the payment treated as income to the person receiving the payment?
  • Is the FDAP income from sources within the United States?

Once you have the answers, you can then determine whether this income is being paid to a U.S. or non-U.S. person and whether you should report the income on a Form 1099 or Form 1042-S. Be sure to look for our upcoming articles that describe income effectively connected to a U.S. trade or business (ECI) and income that is excluded from the definition of FDAP!

Follow us and never miss an update

Transcript

Today, we’re going to provide a refresher on what constitutes Fixed, Determinable, Annual, or Periodical income, commonly known as FDAP.

So, what is FDAP?

FDAP stands for Fixed, Determinable, Annual, or Periodical income. Let’s break down what each of those terms means.

Fixed means that the amount of income is known ahead of time.

Determinable means that there is a basis for calculating the amount that will be paid.

Annual does not necessarily mean that the income has to be paid every year. The term is broad enough to cover income that may be paid annually or at other intervals.

Similarly, Periodical income does not have to be paid at regular intervals. It can include income that is paid from time to time.

Examples of FDAP income include compensation for personal services, dividends, interest, and royalties.

For U.S. withholding agents making payments, it is important to understand whether a payment constitutes FDAP income because this can affect the applicable withholding and reporting requirements.There are several questions withholding agents should consider when reviewing a payment.

First, is the payment FDAP income?
Second, what is the character of the payment? For example, is it compensation for personal services, a dividend, interest, or a royalty?
Third, does the payment represent income to the recipient?

Finally, is the income U.S.-source or foreign-source?

Once these questions have been considered, the withholding agent can then assess the status of the recipient and determine the appropriate withholding and reporting treatment.

This includes determining whether the income should be reported on Form 1099 or Form 1042-S, depending on the circumstances.

Understanding whether a payment is FDAP, the character and source of that income, and the status of the recipient is an important part of meeting U.S. withholding and information reporting obligations.

What does FDAP stand for?

FDAP stands for Fixed, Determinable, Annual, or Periodical income. It is a broad category of income under U.S. tax rules and is particularly important for withholding agents when determining their withholding and reporting obligations.

What are examples of FDAP income?

Common examples of FDAP income include interest, dividends, rents, royalties, and compensation for personal services. Withholding agents need to identify the type of payment and determine whether it is U.S.-source income before establishing the appropriate withholding and reporting treatment.

What does “fixed or determinable” mean for FDAP income?

Income is generally fixed when the amount to be paid is known in advance. It is determinable when there is a basis for calculating the amount that will ultimately be paid.

Why is the source of FDAP income important?

Determining whether FDAP income is U.S.-source or foreign-source is an important part of establishing the correct withholding and reporting treatment. Withholding agents should consider both the character and source of the payment when assessing their obligations.

How is FDAP income reported?

The appropriate reporting depends on factors including the type of income, its source, and the status of the recipient. These factors help a withholding agent determine whether information reporting may be required on forms such as Form 1099 or Form 1042-S.

Share with your community

For more like this, Join Our Mailing List!

Validating Tax Forms | U.S. TIN, GIIN and FTIN

Learn why validating TINs, GIINs and FTINs is essential for tax compliance. Discover how proper validation prevents backup withholding.

Watch Now

The Latest Tax Compliance News

Stay up to date with the latest IRS form revisions for 2026, including W-8, W-9, 1042-S and 1099 forms, with key changes, purposes and revision dates.
Bahamas AEOI deadlines, IRS TCC and IRIS updates, and the latest FATCA, CRS, and CARF developments worldwide.
Learn what an affidavit of unchanged status is, when you need one, and how it saves you from refiling Form W-8 with the IRS.
View All Blogs

For more like this, Join Our Mailing List!