Paying Danish Contractors from a US Company: Tax & Compliance Guide

Why this guide exists

Denmark has a strong engineering and product talent pool, with a deep bench of independent contractors in software, design, and consulting. Copenhagen and the wider Nordic region are a natural place for US companies to hire. For a US company, the US-side tax mechanics are clean, and Denmark is a treaty country with a well-run tax administration, so the documentation is straightforward.

The Danish side has two features worth understanding. The first is how most freelancers are set up, as an enkeltmandsvirksomhed (sole proprietorship), where the business profit is simply taxed as the owner’s personal income. The second is moms, the Danish VAT, which for cross-border B2B services to a US customer generally falls outside the Danish VAT scope. Both are the contractor’s matters to manage, not obligations that land on you, but knowing what they are helps you read an invoice and run due diligence.

This guide covers what a US company needs to pay Danish contractors. We cover the US side (W-8BEN, source of income, the treaty for edge cases), the Denmark side (enkeltmandsvirksomhed, moms, the contractor’s setup), and the payment rail decision. This is general information, not tax or legal advice. If you want to skip the assembly and let a platform handle it, Omnivoo Contract Management handles SOW drafting, W-8BEN collection, invoice capture, and FX settlement for a flat $49 per contract.

US side: what you need to do as the payer

Step 1. Collect a W-8BEN before the first payment

The first action is non-negotiable. Before any invoice is paid, the Danish contractor must complete Form W-8BEN and return it to you. The form certifies the contractor is the beneficial owner of the income, is a tax resident of Denmark, and is not a US person. The IRS Form W-8BEN page has the current form and instructions.

A Danish contractor who is not a US person provides a W-8BEN, not a Form 1099-NEC. The 1099-NEC is for US persons only. The W-8BEN is valid for three calendar years after signature and must be refreshed when it expires or when a relevant fact changes, such as address. If your contractor operates through a Danish company (an ApS or A/S, for example), the form is Form W-8BEN-E, the entity equivalent, available on the IRS W-8BEN-E page. Our W-8BEN checklist walks through what to verify before the first payment.

Part II of the W-8BEN is where the contractor claims treaty benefits, citing Denmark as the treaty country. This is filled in only when treaty benefits are needed on US source income.

Step 2. Confirm the work is performed in Denmark

Under IRS source of income rules for personal services, services income is sourced to the place where the services are physically performed, regardless of where the contract was made or the residence of the payer. If your Danish contractor does the work entirely from Copenhagen, Aarhus, Odense, or anywhere else in Denmark, the income is foreign source income from the US perspective.

Services performed outside the US by a nonresident alien are foreign source income and are not subject to US withholding or Form 1042-S reporting.

For a typical pure services engagement where the Danish contractor never sets foot in the US, the result is: no withholding, no Form 1042-S, and no 1099-NEC. You keep the W-8BEN, the services agreement, the contractor’s invoice, and the payment receipt as the documentation packet.

If the contractor visits the US for an onsite sprint, the days physically worked inside the US are US source days. Those days have to be allocated and may trigger withholding plus a 1042-S, so keep a simple onsite-days log.

Step 3. Know the treaty for the edge cases

There is a US-Denmark income tax treaty in force. Denmark appears on the IRS list of income tax treaties A to Z, and the treaty texts are linked from the IRS Denmark tax treaty documents page. We do not state specific article numbers or withholding rates here, because the right citation depends on the type of income and should be confirmed with a qualified advisor. For background on how treaties work in general, see our income tax treaty glossary entry.

The treaty matters only when your payment generates US source income, such as onsite days worked in the US or a royalty characterisation in the SOW. In those cases the contractor uses Form 8233 (for services) or Form W-8BEN (for other income types) to claim the relevant treaty article, and the contractor’s Danish accountant identifies the correct one. For more on this mechanic, see our Form 8233 treaty exemption guide.

For independent personal services, the treaty generally allocates taxing rights so that a Danish resident’s service income is taxable in the US only to the extent it is attributable to a US presence the contractor maintains in the US. For a contractor working entirely from Denmark with no US presence, there is no US source income to begin with, so treaty article citations are not needed. The cleanest practice is to draft the SOW as a pure services agreement with full IP assignment for value already included in the fee, which avoids splitting the fee into a royalty component.

Denmark side: what your contractor handles

You as the US payer are not in scope for most Danish taxes. The Danish contractor is. Understanding the landscape helps you have an informed conversation about invoice format, VAT treatment, and how the contractor is set up.

The enkeltmandsvirksomhed and how it is taxed

Most Danish freelancers working with international clients operate as an enkeltmandsvirksomhed, a sole proprietorship. It is the simplest business form and the common choice for consultants and software developers. The Danish Tax Agency guidance on tax on your own business describes how the owner reports the business result in their personal tax return, with the profit taxed as the owner’s personal income rather than as a separate business tax.

In practice the owner pays their tax through B-tax (B-skat) instalments during the year, alongside the 8 percent labour market contribution (AM-bidrag) on income. These are the contractor’s own Danish obligations and they settle on the contractor’s annual return. As the US payer you do not operate inside any of them. You only need a valid invoice. Knowing the structure tells you your contractor is a registered, self-managing business rather than a disguised employee, which is useful for due diligence.

Moms (VAT) 25 percent and the place-of-supply rule

Denmark’s standard moms (VAT) rate is 25 percent, per the Danish Tax Agency VAT guidance, which states the VAT rate is generally 25 percent of the value of the goods or services. The same guidance notes a business must register for VAT once it trades goods or services for over DKK 50,000 annually. For B2B services, the place of supply is generally where the business customer is established.

When your Danish contractor invoices your US company for services, the customer is established in the US, so the supply is generally outside the scope of Danish VAT. The contractor issues the invoice without Danish VAT, and you as the US payer do not pay or recover it. If the contractor is below the DKK 50,000 registration threshold they may not be registered for moms at all, with the same net effect for you: no Danish VAT on the cross-border B2B service.

Danish income tax and social contributions

A genuinely self-employed Danish contractor manages their own income tax, the labour market contribution, and any voluntary social cover, settled through their B-tax and annual return. These are the contractor’s own obligations. You as the US client do not withhold Danish tax and have no Danish payroll obligation in a clean pure-services engagement. The exception is the reclassification risk below, where a contractor treated as a disguised employee can pull employment obligations into the picture.

The payment rail decision

There are a few real options for paying a Danish contractor from a US bank account. Denmark uses the Danish krone (DKK) and is part of the SEPA area for EUR transfers.

For most US companies paying one to ten Danish contractors, a transparent DKK provider or a EUR SEPA transfer is the cleanest option. The SWIFT network remains a fallback for one-off larger payments where the percentage cost matters less. For a deeper view of where FX cost leaks, see our guide on FX margin in international contractor payments and the FX margin glossary entry.

Misclassification risk in Denmark

Denmark, like the rest of the EU, distinguishes a genuine independent contractor from a disguised employment relationship, and the substance of the relationship governs over the contract label. The risk is highest when the contractor has only one client (your US company), works fixed hours under your direction, uses your equipment, and is integrated into your team like an employee. A reclassification can carry retroactive entitlement to employment protections and contributions.

The mitigations are the standard ones: a properly drafted services agreement that establishes the contractor relationship in substance, a scope tied to deliverables not hours, evidence the contractor has other clients (and runs a real enkeltmandsvirksomhed), and a documented review of worker misclassification risk at six and twelve months. A clean engagement also lowers the risk of creating a permanent establishment for your US company. For more depth, see our guide on drafting an SOW for global contractors. The Omnivoo Contract Management templates build a master service agreement and statement of work with IP assignment and a clear governing law clause by default.

End-to-end workflow

Here is the clean version for a US company onboarding its first Danish contractor.

1. Send the contractor a B2B services agreement that defines deliverables, payment, IP assignment, and termination, anchored by a master service agreement and a statement of work.
2. Collect a signed W-8BEN before any payment moves. Part II references Denmark as the treaty country only when US source income is involved. Do not issue a 1099-NEC to a non-US person.
3. Confirm the contractor runs an enkeltmandsvirksomhed or Danish company, is set up to issue a compliant invoice, and treats the cross-border B2B service as outside Danish VAT.
4. Pick a payment rail (a DKK provider, EUR via SEPA, or comparable) and onboard the contractor’s payout details.
5. Pay the invoice on schedule. Keep the W-8BEN, services agreement, invoice, and payment receipt together as a packet.
6. Review the engagement quarterly for misclassification risk and refresh the W-8BEN every three years.

If you also pay contractors in other treaty countries, our Form 8233 treaty exemption guide covers how that side works. For the broader framework, see our guide on how to pay international contractors from the US. If you pay contractors elsewhere in the Nordics and Europe, see our guides on paying Swedish, Norwegian, and German contractors.

When a platform pays for itself

A US founder paying one Danish contractor can do this manually. A US team paying five or more Danish contractors faces enough W-8BEN refreshes, VAT confirmations, and FX margin questions that a platform pays for itself within the first few months.

Omnivoo Contract Management costs a flat $49 per contract. We draft the B2B services agreement with Denmark-specific IP and misclassification clauses, collect the W-8BEN, capture the invoice on every payment, run the FX payment through a DKK or EUR rail to avoid SWIFT leakage, and store the full packet for audit. Transaction fees are passed through at cost, with no FX markup and no subscription.

A simple sanity check

Three questions for every Danish contractor relationship.

1. Is there a signed W-8BEN on file and is it less than three years old?
2. Will all the work be performed in Denmark, and have we confirmed the contractor runs a genuine independent business?
3. Are we paying through a rail that lands DKK or EUR cleanly and captures the invoice for every payment?

If yes to all three, you are in great shape on the US-Denmark stack. The remaining work is misclassification hygiene over time.

Want to skip the assembly entirely? See how Omnivoo Contract Management handles Danish contractors end to end, or talk to our team about your specific setup. This guide is general information, not tax or legal advice.