Is affiliate commission a royalty or a service for US tax purposes?

For most affiliate networks, commissions for referring customers are treated as services income, not royalties — you are paid for performing a marketing service, not for licensing intellectual property. Services performed by a foreign person outside the United States are generally not US-source income and are not subject to US withholding when a valid W-8BEN is on file. Classification can vary by platform and contract, so consult a US tax advisor for your specific platform.

Do Bulgarian affiliate marketers need to charge VAT?

Most affiliate commissions are cross-border B2B services to a foreign company (the network or merchant) and fall under the reverse charge mechanism. You invoice at 0% VAT and the recipient self-accounts for VAT in its own country. Reverse-charged B2B services to foreign platforms generally do not count toward Bulgaria's domestic VAT registration threshold of EUR 51,130 per calendar year.

Freelancer or EOOD — which is better for an affiliate marketer?

Most solo affiliate marketers earning under EUR 50,000 per year start as freelancers because the 7.5% effective rate, 25% automatic expense allowance, and same-day registration are hard to beat. An EOOD becomes attractive around EUR 60,000-80,000 per year or earlier when you want limited liability, retained earnings at 10% CIT, the ability to hire VAs and content teams, and credibility with brands and networks.

What expenses can I deduct as an affiliate marketer in Bulgaria?

Freelancers get a flat 25% automatic deduction with no receipts required. Through an EOOD, you deduct actual business expenses including paid advertising (Google Ads, Meta, TikTok), SEO and keyword research tools, hosting and domains, email marketing platforms, content creation and outsourcing, VPN and software subscriptions, and professional fees. Expenses must be properly documented and linked to the business.

Does Bulgaria tax affiliate income from US networks differently?

No. Bulgaria taxes worldwide income of its residents at the same flat rate regardless of whether the payer is based in the United States, United Kingdom, Ireland, Germany, or anywhere else. Any US tax correctly withheld under the Bulgaria-US tax treaty is creditable against your Bulgarian liability so the same income is not taxed twice.

Bulgaria Affiliate Marketing Tax Guide: CJ, Awin, Amazon Associates & More (2026)

Q: How is affiliate marketing income taxed in Bulgaria?

Affiliate commissions are treated as business income in Bulgaria. As a freelancer you pay an effective 7.5% income tax (25% automatic expense deduction plus 10% flat tax on the remaining 75%). Through an EOOD you pay 15% combined (10% corporate income tax plus 5% dividend tax). There is no special regime for affiliate income — it flows into the same flat-rate system as other online business income.

Q: Do I need a W-8BEN for Amazon Associates as a Bulgarian resident?

Yes. Amazon requires every non-US affiliate to complete an online tax interview that produces a W-8BEN (individual) or W-8BEN-E (entity). Without a valid form on file, Amazon applies the default 30% US withholding on US-source payments. By claiming Bulgaria-US tax treaty benefits and confirming that the services are performed outside the United States, most Bulgarian affiliates end up with 0% US withholding on their commissions. Consult a US tax advisor if your specific arrangement is unusual.

Your Amazon Associates Check, Paid at 7.5% Instead of 30%+. Legally.

For most affiliate marketers in Western Europe or North America, the combined hit of income tax, social contributions, and potential US withholding eats between a third and half of every commission. In Bulgaria, the same affiliate marketing income is taxed at a flat 7.5% effective rate as a freelancer or 15% combined through an EOOD. That is not a loophole, not an offshore structure, and not a special regime — it is the ordinary Bulgarian flat-rate system, available to any EU citizen on arrival and to non-EU nationals through a D visa.

Affiliate income sits unusually well inside the Bulgarian system. It is B2B. It is cross-border. It is mostly reverse-charged for VAT. And when the US withholding layer is handled correctly with a W-8BEN, most Bulgarian affiliates end up with 0% US withholding on top of their 7.5% Bulgarian effective rate. This guide walks through how each major affiliate network is treated, when and how US withholding applies, whether a freelancer or EOOD is the right structure at your income level, and which expenses you can deduct.

7.5%

Freelancer effective tax

15%

EOOD combined rate

Typical US withholding

EUR 51,130

VAT threshold

Why Affiliate Marketers Move to Bulgaria

Affiliate marketing is one of the cleanest businesses to relocate. There is no inventory, no local customers, no licensed activity, no office requirement — just a laptop, a payment account, and your publisher identity on each network. The payer is almost always a foreign company. The audience is global. The work is performed wherever the affiliate happens to sit. For a tax-residency move, that is close to ideal.

7.5% effective freelancer rate — a 25% automatic expense allowance on gross income, plus 10% flat tax on the remaining 75%. No receipts required for the allowance. See our Bulgaria freelancer tax rate guide.
15% combined EOOD rate — 10% corporate income tax on company profits plus 5% dividend tax on distributions. Retained earnings sit inside the company at just 10%.
EU and Schengen access — freedom of movement for you, frictionless cross-border invoicing for your business, and the euro since 1 January 2026.
Low cost base — Sofia is one of the most affordable capitals in the EU, which means more of every commission becomes savings rather than rent.
No IP box — and no need for one — Bulgaria does not have a patent box, knowledge development box, or royalty regime. It does not need one, because the standard flat rates are already lower than most European IP boxes.
Mature professional infrastructure — English-speaking accountants, banks, and law firms familiar with cross-border digital business.

How Affiliate Commissions Are Taxed in Bulgaria

Affiliate commissions are business income in Bulgaria. There is no separate category for affiliate marketing, no special withholding, and no royalty treatment — you are performing a marketing service (referring customers to merchants) and you are paid a commission for that service.

Freelancer (svobodna profesiya): 25% automatic expense deduction + 10% flat tax on the remaining 75% = 7.5% effective rate. Plus social security on a capped base.
EOOD (single-member limited company): 10% corporate income tax on profits + 5% dividend tax on distributions = 15% combined rate. Retained profits stay inside the company at 10%.

Both structures are equally available to affiliate marketers. The choice between them is driven by income level, team size, and liability considerations — covered in detail in the Freelancer or EOOD section below.

Platform-by-Platform Breakdown

Most affiliates work with at least two or three networks. Each has a different payer entity, different tax interview flow, and different payout mechanics. The Bulgarian income tax treatment is identical across all of them — it is the US withholding and VAT layers that vary slightly.

Amazon Associates

Amazon Associates is the world's largest affiliate program. For a Bulgarian publisher, the key facts:

Payer: Depending on which Amazon marketplace you drive sales to — Amazon.com (US), Amazon EU S.a r.l. (Luxembourg) for European marketplaces, or one of the other regional Amazon entities.
Tax interview: Every non-US affiliate must complete an online tax interview that produces a W-8BEN (individual) or W-8BEN-E (company). Without a valid form, Amazon applies the default 30% US withholding on US-source payments.
Withholding outcome: With a Bulgarian tax ID and a properly completed W-8BEN confirming that services are performed outside the United States, most Bulgarian affiliates end up at 0% US withholding on Amazon Associates commissions — because affiliate commissions are paid for services, not royalties, and foreign-performed services are generally not US-source income.
Bulgarian tax: 7.5% effective freelancer or 15% EOOD combined. VAT: B2B cross-border service to Amazon, reverse charge, 0% Bulgarian VAT.

CJ Affiliate (formerly Commission Junction)

CJ is a US-headquartered network owned by Publicis Groupe. Publishers are paid by CJ in USD (or EUR/GBP for certain regions) after CJ collects from the advertiser. For Bulgarian tax residents:

Tax forms: CJ requires a W-8BEN or W-8BEN-E from non-US publishers to document your foreign status.
US withholding: Affiliate commissions are services income. Services performed entirely outside the US by a non-US person are not US-source income, and typically no US withholding applies once your W-8 form is on file.
VAT: B2B cross-border service to a US company — outside the scope of EU VAT on the output side. No Bulgarian VAT is charged.

Awin and ShareASale

Awin is a German-headquartered network (part of Axel Springer / United Internet) that acquired US-based ShareASale in 2017. Publisher payouts come from the relevant Awin or ShareASale legal entity. For Bulgarian publishers:

Payer: Awin's EU entity for most European publishers; ShareASale's US entity for the legacy ShareASale network.
Tax forms: EU-to-EU B2B does not require a W-8, just a valid VAT ID (or a statement of non-VAT status). ShareASale requires a W-8BEN/W-8BEN-E.
VAT: Awin EU entity → reverse charge, 0% Bulgarian VAT. ShareASale (US) → outside scope of EU VAT.

Impact (impact.com)

Impact is a US-headquartered partnership platform used by many SaaS companies, DTC brands, and fintechs. Brands invite affiliates directly and Impact handles payments. For Bulgarian publishers, commissions are paid by Impact Tech Inc. or by the advertiser directly, depending on program setup.

Tax forms: W-8BEN / W-8BEN-E required at signup.
US withholding: Same services-income logic — with the W-8 on file, most Bulgarian affiliates see 0% US withholding.
VAT: Usually US-to-Bulgaria, outside the scope of EU VAT on the output side.

ClickBank

ClickBank is a US-based marketplace specialising in digital products (courses, ebooks, software). Affiliates earn commission on each sale referred.

Payer: Click Sales LLC (US entity) pays affiliates worldwide in USD or local currency via wire, Payoneer, or direct deposit.
Tax forms: W-8BEN / W-8BEN-E required.
US withholding: Commissions are services income; with a valid W-8, withholding is typically 0%.
VAT: US payer to Bulgarian business, outside the scope of EU VAT on the output side. Bulgarian income tax at 7.5% freelancer / 15% EOOD.

Rakuten Advertising

Rakuten Advertising is the affiliate network arm of the Japanese Rakuten group, with US and EU operating entities. Publishers are paid from the entity that manages their region's programs. For Bulgarian publishers this is typically an EU Rakuten entity (reverse charge applies) or a US entity (outside EU VAT scope).

Royalty vs services — why it matters: Affiliate commissions are generally classified as services income rather than royalties because you are paid for the act of referring a customer, not for licensing IP. Services performed outside the US by a non-US person are not US-source income and are not subject to US withholding when a valid W-8BEN is on file. Classification can vary by platform and by how the contract is drafted — if your program has an unusual structure or you are also licensing content, consult a US tax advisor for your specific platform.

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W-8BEN and US Withholding: When It Applies and How to Claim Treaty Rates

For any US-based affiliate network — Amazon Associates, CJ, Impact, ClickBank, ShareASale, Rakuten's US entity — you will be asked to complete a W-8 form during onboarding. This is not optional. Without a valid W-8 on file, the network is required to withhold 30% on US-source payments.

W-8BEN vs W-8BEN-E

W-8BEN — used by individuals (including Bulgarian freelancers) to establish foreign status and claim treaty benefits.
W-8BEN-E — used by entities (including Bulgarian EOODs) to do the same thing for a company. Longer form, more chapters, but the outcome is the same.

What you claim

On the W-8BEN, you identify yourself as a Bulgarian tax resident, list Bulgaria as the country of residence for treaty purposes, and confirm that the services generating the commission are performed outside the United States. For most affiliate commissions, the payment is not US-source income at all because services income is sourced where the services are performed — and you are sitting in Sofia, not San Francisco. The result is 0% US withholding, not a reduced treaty rate.

If the platform treats income as royalties

Some platforms — especially those that also pay self-publishing or music royalties through the same tax interview — may classify certain payments as royalties. If a specific payment stream is classified as a royalty for US tax purposes, the Bulgaria-US double tax treaty caps US withholding at 5%, not 30%. Both the services-income and treaty-royalty outcomes require a valid W-8 to be on file; without one, the default is 30%. See our Bulgaria-US double tax treaty guide and the IRS W-8BEN form page.

The 30% default trap: Most affiliates who discover they are losing a third of their US commissions have simply skipped the tax interview at signup. Fix it once and it stays fixed. If you have already been withheld, some networks can reverse accruals once the form is filed; others cannot, so the priority is to file the form before your first payout on each platform.

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Freelancer or EOOD for Affiliate Marketing

The single most important structural decision is whether to register as a freelancer or set up an EOOD. For most affiliates, the answer tracks income level. For a full comparison with break-even math, see our freelancer vs EOOD income threshold guide.

Monthly commission	Annual	Best structure	Why
EUR 1,000	EUR 12,000	Freelancer	Simple, 7.5% effective, EUR 900/year income tax, no dividend mechanics
EUR 3,000	EUR 36,000	Freelancer	Still cheapest at this level; EOOD overhead rarely justified
EUR 5,000	EUR 60,000	Freelancer or EOOD	Break-even zone; EOOD preferable if you want limited liability or plan to hire
EUR 8,000+	EUR 96,000+	EOOD	Retain profits at 10%, hire content team, liability protection, brand credibility

Three concrete examples:

EUR 1,000/month affiliate (EUR 12,000/year): Freelancer. After 25% automatic deduction, taxable base is EUR 9,000. Income tax at 10% = EUR 900/year. Plus social contributions on a capped base. Total tax burden is roughly 7.5% plus social security.
EUR 3,000/month affiliate (EUR 36,000/year): Still freelancer. After 25% deduction, taxable base is EUR 27,000. Income tax = EUR 2,700. At this level, freelancer is clearly simpler and cheaper than EOOD unless you already want limited liability.
EUR 8,000/month affiliate (EUR 96,000/year): EOOD territory. Pay yourself a reasonable management salary, deduct real expenses (ads, software, content), retain the rest inside the company at 10% CIT, and distribute dividends only when you need personal cash. Effective long-term rate approaches 15%. See how to pay yourself from an EOOD.

VAT Rules for Affiliate Income

VAT is where affiliate marketers get their biggest pleasant surprise. Most affiliate income is cross-border B2B services, which means the reverse charge mechanism applies and no Bulgarian VAT is charged on the output.

Reverse charge for EU-to-EU B2B

When a Bulgarian affiliate invoices an EU-based network (Awin DE, for example), the place of supply shifts to the customer and the Bulgarian affiliate invoices at 0% VAT. The network self-accounts for VAT in its own country. You report the transaction on your Bulgarian VAT return if you are VAT-registered, but no VAT flows through your account.

Services to non-EU payers

When the payer is a US, UK, or other non-EU company (CJ, ClickBank, Impact, ShareASale), the service is outside the scope of EU VAT on the output side. You invoice at 0% and there is no VAT to collect.

The EUR 51,130 domestic threshold

Bulgaria's mandatory VAT registration threshold is EUR 51,130 in taxable domestic turnover per calendar year (2026). Reverse-charged B2B services to foreign platforms generally do not count toward this threshold, which means many affiliate marketers earning well over EUR 51,130 in commissions stay below the Bulgarian VAT line indefinitely.

Voluntary registration and EU SME scheme

You can still register for VAT voluntarily to recover input VAT on business purchases — see our voluntary VAT registration guide. The EU SME VAT exemption scheme offers additional cross-border simplifications from 2025 onwards.

Deductible Expenses for Affiliate Marketers

Freelancers get a flat 25% automatic deduction on gross income with no receipts required — it is applied before the 10% flat tax and is how the effective rate lands at 7.5%. EOOD owners deduct actual business expenses against revenue. For affiliate marketers, typical deductible expenses through an EOOD include:

Paid advertising — Google Ads, Meta Ads (Facebook/Instagram), TikTok Ads, Microsoft Ads, native advertising (Taboola, Outbrain), Reddit Ads
Website infrastructure — hosting (SiteGround, Kinsta, Cloudways), domains, CDN, premium WordPress themes and plugins
SEO and content tools — Ahrefs, Semrush, Surfer, Frase, Clearscope, keyword research subscriptions
Email marketing platforms — ConvertKit, MailerLite, ActiveCampaign, Klaviyo
Content creation — freelance writers, editors, graphic designers, video editors, stock media and image licenses
Productivity and security — Notion, Google Workspace, VPN subscriptions, password managers, cloud storage
Analytics and tracking — Google Analytics 360, server-side tracking tools, affiliate link management software
Office and travel — coworking memberships, business travel, conference tickets (Affiliate World, Affiliate Summit)
Professional fees — Bulgarian accountants, Bulgarian legal counsel, cross-border tax advisors

All expenses must be properly documented (invoices made out to the EOOD) and linked to the business activity. A freelancer who does not hit the 25% auto-deduction threshold on real expenses has the simplest possible tax life in Europe.

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But What About Double Taxation?

The recurring worry from affiliates considering the move: "Won't I be taxed in my home country, in the US on top of Bulgaria, or somewhere in between?" The answer in almost every case is no — provided you properly establish Bulgarian tax residency and, where required, formally exit your previous country's tax system.

Bulgaria has a double tax treaty network covering over 70 countries, including every EU member state, the United States, the United Kingdom, Canada, and Australia. Once you are a Bulgarian tax resident (183+ days in Bulgaria in a 12-month period, or centre of vital interests), you declare your worldwide income in Bulgaria. Any foreign tax correctly withheld under a treaty is creditable against your Bulgarian liability. The first step is not the W-8BEN — it is the residency move itself, handled through the Migration Directorate for EU citizens or via a D visa and residence permit for non-EU nationals. Once your residency paperwork is clean, the tax layer is mechanical.

For Bulgarian domestic rules and filing deadlines, see the National Revenue Agency (NRA). For US tax forms, the IRS publishes full W-8BEN instructions.

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Frequently Asked Questions

How is affiliate marketing income taxed in Bulgaria? +

Affiliate commissions are business income. As a freelancer you pay 7.5% effective income tax (25% automatic deduction + 10% flat tax). Through an EOOD you pay 15% combined (10% CIT + 5% dividend tax). No special regime, no withholding at source inside Bulgaria.

Do I need a W-8BEN for Amazon Associates as a Bulgarian resident? +

Yes. Every non-US affiliate must complete Amazon's online tax interview, which produces a W-8BEN (individual) or W-8BEN-E (entity). Without it, Amazon applies the default 30% US withholding. With a valid form and services performed outside the US, most Bulgarian affiliates end up at 0% US withholding.

Are affiliate commissions treated as royalties or services for US tax? +

Generally services income — you are paid for referring customers, not for licensing IP. Services performed outside the US by a non-US person are not US-source income and are not subject to US withholding when a valid W-8BEN is on file. Classification varies by platform and contract; consult a US tax advisor for your specific platform.

Do affiliate marketers need to register for VAT in Bulgaria? +

Only if taxable domestic turnover exceeds EUR 51,130 per calendar year. Reverse-charged B2B services to foreign networks generally do not count toward this threshold, so most affiliate marketers can stay below the VAT line even at high commission volumes.

Freelancer or EOOD — which is better for affiliate marketing? +

Most solo affiliates under EUR 50,000 per year should start as freelancers for the 7.5% effective rate and the 25% automatic deduction. EOOD becomes attractive around EUR 60,000-80,000 per year, or earlier if you want limited liability, want to retain profits at 10% CIT, or plan to hire content teams and VAs.

What expenses can I deduct as an affiliate marketer? +

Freelancers get a flat 25% automatic deduction with no receipts. EOOD owners deduct actual business expenses: paid ads (Google, Meta, TikTok), hosting and domains, SEO tools (Ahrefs, Semrush), email platforms, content creation, VPNs, conferences, and professional fees. All expenses must be properly documented.

Does Bulgaria tax US affiliate income differently? +

No. Bulgaria taxes worldwide income of its tax residents at the same flat rate regardless of where the payer is located. Any US tax correctly withheld under the Bulgaria-US double tax treaty is creditable against your Bulgarian liability, so the same income is not taxed twice.

Is influencer sponsorship income taxed like affiliate commission in Bulgaria? +

Yes. Sponsorships, brand deals, and paid placements are services income — same flat 7.5% effective rate for freelancers or 15% combined through an EOOD. Cross-border B2B sponsorships are reverse-charged for VAT. Domestic B2B sponsorships to a Bulgarian VAT-registered brand are charged at 20% Bulgarian VAT once you are VAT-registered.