Do referral partners need to complete Part II of the W-8BEN?
Not always. Part II of the W-8BEN is where a foreign individual claims a reduced rate under a US tax treaty, and it is only filled in when a claim is made. Whether you need it depends on your country of residence, treaty status and where your introduction work is performed.
Do referral partners have to complete Part II of the W-8BEN?
Not always. Part II is the section where a foreign individual claims a reduced rate under an income tax treaty, so it matters only if you are making a claim. Whether you should fill it in depends on where you live, whether your country has a US treaty, and where the work behind your introductions is done.
The IRS describes the form as a certificate of foreign status that individuals give to the payer, not to the IRS, whether or not they claim a reduced treaty rate. If SourceX asks you for a tax form before paying a reward, a non-US individual would typically be asked for this one. The form tells the payer who you are for tax purposes; it does not decide how your reward is taxed.
This is general information, not legal, tax or financial advice. Confirm with your own tax adviser before you sign a certificate under penalties of perjury.
What does Part II actually do?
Part II is the treaty claim. In it you state your country of residence for treaty purposes, and, where you want a reduced rate or exemption, identify the treaty article and the rate or conditions you rely on. Part I identifies you; Part II asks for a benefit.
Leaving Part II empty means you are not asking the payer to apply a treaty, and whether that is the right choice for you is a question for your adviser. Filling it in wrongly is a real risk, because you are certifying statements about your residence and the income.
The 3-question Part II screen
Work through these in order before you touch the treaty lines.
- Place of work: is the work behind your introductions done entirely outside the United States? Where services are performed is often a key fact in how pay for services to a foreign person is treated, so a partner who works only from their home country may have a different analysis from one who works in the US. The IRS guide for payers, Publication 515, shows that withholding on payments to foreign persons turns on the facts; do not assume an outcome.
- Treaty status: does the United States have an income tax treaty with the country where you are a tax resident? Check the treaty list on the IRS website rather than a blog or a forum post.
- Article fit: if there is a treaty, which article covers your kind of income, and do you meet its conditions, such as a residency or a limitation-on-benefits test?
If the first answer is "yes, entirely outside the US", ask your adviser whether a treaty claim is needed at all. If the second answer is "no treaty", Part II has nothing to hold.
Which treaty article could apply to independent services?
The answer is in the text of your own country's treaty, not in a general rule. Treaties commonly deal with business profits, independent personal services and "other income" in separate articles, and the labels, thresholds and conditions differ from treaty to treaty. Read the actual treaty and any technical explanation published with it, rather than relying on a summary.
| Your situation | Where to look first | What to confirm with an adviser |
|---|---|---|
| Individual, introductions done from your home country | The treaty with your country of residence, business profits or independent services article | Whether the income is taxed in the US at all, given where you work |
| Individual who spends time working in the US | The same articles, plus any day-count conditions | Whether US-based days change the analysis |
| Reward paid to your company, not to you | Use the entity form, W-8BEN-E, not W-8BEN | Entity classification and treaty eligibility of the company |
| Country with no US treaty | No Part II claim is available | Whether a payer withholding question arises and how your home country taxes the reward |
| Dual resident or recent move | Treaty tie-breaker rules | Which country is your residence for treaty purposes |
Partners who refer through a company should read the companion guide on filling out a W-8BEN-E for a consulting firm, because the entity form has its own structure. The IRS page for Form W-8BEN-E explains that entities use it to claim treaty benefits where applicable.
What if my country has no treaty with the US?
Then there is no treaty rate to claim, and the question becomes whether the payment is subject to withholding at all. That depends on the source of the income, which for services usually means where the work is performed. Publication 515 says payments to foreign persons can raise withholding questions that depend on the facts. Do not assume either outcome. Ask an adviser who handles cross-border income, and keep a short written note of where you did the introduction work.
Questions to take to your adviser
- I introduce US companies to SourceX entirely from my home country. Is any part of my reward US-source income?
- Does my country's treaty with the US apply to this kind of income, and which article?
- Should I sign as an individual or through a company I own?
- How will my home country tax the reward, and can I claim credit for any US tax withheld?
- If I travel to the US for a meeting with a company I introduced, does that change the answer?
Practical order of operations
- Read the program terms so you know who pays you and what forms the payer may request.
- Work through the cross-border readiness checklist before you register.
- If you work for a global employer, check its outside business activity rules first, since a W-8BEN is no use if your employer forbids the side activity.
- Collect your tax identification number from your home country, if you have one, and your tax residence details.
- Hold the form until the payer requests it; the IRS says it goes to the payer, not to the IRS.
How the reward fits in
Partners earn 25% of the eligible platform fees SourceX actually collects from the referred company's licensing deals, capped at $100,000 per referred company. The reward is payable only after the buyer pays and SourceX receives its fee, and no reward is guaranteed. Nothing about a treaty claim changes that formula. The referral earnings calculator shows how it works, and you should model your own tax outcome with an adviser, not with the calculator.
When Part II is the wrong thing to worry about
Skip the treaty research for now if you have not yet identified a company worth introducing, or if the company you have in mind is not a fit. A US subsidiary of a foreign group raises a different question, covered in referring a foreign-owned US company. Registering and making an introduction does not require you to settle your tax position first, but confirm timing with the program terms.
Next step
Check your country against the IRS treaty list, write down where you do your introduction work, and book a short call with a cross-border tax adviser. Then register as a partner and start with the company that fits best.
- Step 1Share your linkSend your personal link to a company you know.
- Step 2Company appliesThe company applies itself at /apply.
- Step 3Buyer selects and paysThe buyer selects and pays for the data and SourceX receives its fee.
- Step 4You get your rewardYour share of SourceX fees becomes payable.
Common questions
Is Part II of the W-8BEN mandatory?
Part II is only for claiming a reduced treaty rate or exemption, so it applies only if you are making a claim. Part I identifies you as a foreign individual. Whether to leave Part II empty depends on your facts, so ask a tax adviser who handles cross-border income before you decide.
Which treaty article should I write on the form?
The one in your own country's treaty with the United States that covers your type of income, often business profits or independent personal services. Articles and conditions differ between treaties, so read the treaty text or have an adviser identify it. Do not copy an article number from another country's example.
Who receives my W-8BEN?
The payer, not the IRS. IRS guidance says the certificate goes to the withholding agent or payer when requested. For referral rewards that could mean SourceX asks you for it, so check the program terms, and you should keep a copy and update it if your circumstances change.
What if my reward is paid to my company instead of me?
Then the paying entity's form is generally the W-8BEN-E rather than the individual W-8BEN, and its treaty section works differently. Entity classification matters, so check with an adviser before choosing. Do not file the individual form on behalf of a company.
Does a treaty claim change how SourceX calculates my reward?
No. The reward formula is the same for every partner: 25% of eligible platform fees SourceX collects, up to $100,000 per referred company, payable after SourceX receives payment. Tax forms affect how a payment is documented and reported, not how much the program calculates.
Related pages
- How to fill out a W-8BEN-E for an advisory or consulting firm
- Cross-border readiness checklist: what to settle before you register as a partner
- Outside business activity policy: what to check before you join a referral program
- Referral Earnings Calculator
- Can I refer a US company that is owned by a foreign parent group?
Free resources
- Business exit readiness assessment — A preliminary exit readiness score and checklist for advisors.
- SDE vs EBITDA calculator — Seller's discretionary earnings next to market-rate EBITDA.
- IRR calculator — Internal rate of return on annual cash flows.
- All free tools · MCP resource center
By SourceX Partnerships Team · Published 2026-10-09 · Updated 2026-10-09
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