Denmark IP and Royalty Tax Guide (Patenter, Royalties, Kildeskat)

Danish IP and royalty taxation — 22% withholding tax on outbound royalties, treaty exemptions, tax treatment of IP income, and mandatory royalty reporting since 2024.

Denmark taxes intellectual property (IP) income under ordinary corporate tax rules at 22%. Unlike some EU countries, Denmark does not have a patent box/IP box regime. Instead, it offers a generous enhanced R&D super-deduction (up to 120% from 2028). Outbound royalty payments are subject to withholding tax (kildeskat) at 22%, with significant exemptions under tax treaties and the EU Interest & Royalty Directive. All amounts in Danish kroner (DKK). For related reading, see our business expenses guide →, business tax return guide →, and tax treaties guide → for treaty rates on royalties. For the full rules on the enhanced super-deduction, cash payout, and qualifying R&D activities, see our R&D Tax Credits Guide →. For the specific treatment of IP in gaming and software development — including capitalisation of development costs, VAT on digital games, and loot box mechanics — see our Gaming and Software Development Tax Guide →.

Taxation of IP Income

Danish companies are taxed at the flat 22% corporate rate on all IP-related income, including:

Royalties received — License fees, patent royalties, trademark royalties, know-how fees, and similar recurring payments for IP use.
Capital gains on IP sales — Gains from the sale of patents, trademarks, copyrights, and other IP assets are ordinary taxable income at 22%.
Embedded IP income — Income from products or services that incorporate IP is business income, taxed at the standard rate.

Denmark does not offer a patent box or IP box regime with reduced rates. The Danish approach favours front-end incentives through enhanced R&D deductions rather than back-end reduced rates on IP income. See the business expenses guide → for the R&D super-deduction details.

Acquisition and Amortisation of IP

Acquired patents, know-how, and trademarks: Can be amortised over 7 years (1/7 per year straight-line) under AL §40. Alternatively, they can be straksafskrevet (immediately expensed) if acquired before 1 Jan 2025 — from 1 Jan 2025, immediate deduction is no longer available (must be amortised or treated as a småaktiv).
Self-developed IP: Development costs are deductible as R&D expenses under LL §8 B with enhanced rates. No capitalisation of self-developed IP is required — you deduct the costs as incurred.
Software: Immediate deduction was abolished from 1 Jan 2025. Must now be depreciated over useful life or expensed as a småaktiv if under 36,000 DKK (2026).

Withholding Tax on Outbound Royalties

Denmark imposes a withholding tax (kildeskat) of 22% on royalties paid to foreign recipients (KSL §65 C). The rate was reduced from 25% to 22% effective 1 March 2015.

Definition of Royalty (KSL §65 C, stk. 4)

Includes payments for: patents, trademarks, designs and models, drawings, secret formulas, manufacturing methods, industrial/commercial/scientific know-how. Excludes: literary, artistic, and scientific work royalties (e.g., author royalties, music royalties, motion picture rights).

Exemptions and Reductions

EU Interest & Royalty Directive: 0% withholding for qualifying associated companies (≥25% direct ownership) within the EU. The payer and recipient must be associated for at least 2 years (or the payment is subject to a 2-year holding period).
Tax treaties (DBO): Rates vary by country. Many treaties reduce WHT to 0%. Examples: UK 0%, Germany 0%, Netherlands 0%, Sweden 0%, Finland 0%, France 0%, US 0%, China 10%, India 20%.
Beneficial ownership — Treaty benefits are denied if the recipient is not the beneficial owner of the royalty. SKAT strictly enforces this — intermediate shell companies without substance will not qualify.

Reporting and Payment

Monthly filing: Withholding tax must be paid and reported monthly, by the 10th of the following month.
Expanded reporting from 1 July 2024: All royalty payments to foreign recipients must be reported, regardless of whether withholding tax was due. Exception: payments exempt under the EU Interest & Royalty Directive.
Form: Blanket 06.013 (Royalty withholding tax return).
From 1 July 2025: The payer is obligated to withhold even if they have no Danish domicile — a Danish representative becomes jointly liable.

R&D Super-Deduction — Denmark's Alternative to a Patent Box

Instead of a patent box, Denmark provides an enhanced deduction (super-fradrag) for qualifying R&D costs under LL §8 B. The rates are rising progressively:

2023–2025: 108% of qualifying expenditure.
2026: 114%.
2027: 116%.
2028+: 120%.

For loss-making companies, a cash payout (skattekredit) is available under LL §8 X, up to a basis of 25 million DKK per year (35 million DKK from 2027). For full details on qualifying R&D and documentation requirements, see our business expenses guide →.

Transfer Pricing and IP

IP transactions with related parties are subject to the arm's length principle under Danish transfer pricing rules (Ligningsloven §2). Key requirements:

Royalty rates must be arm's length — benchmarked against comparable uncontrolled transactions. SKAT frequently audits IP-related payments.
DEMPE functions — The entity claiming IP income must perform the economically significant functions (Development, Enhancement, Maintenance, Protection, and Exploitation). Substance is critical.
Documentation: Maintain transfer pricing documentation covering IP ownership, royalty rate benchmarking, DEMPE analysis, and contractual arrangements. For more on transfer pricing requirements, see our transfer pricing guide →.
Exit tax on IP migration: If IP is transferred out of Denmark to a related party abroad, an exit tax may apply on the unrealised gain at market value.

FAQs

Does Denmark have a patent box regime?

No. Denmark does not have a patent box or IP box regime. All IP income is taxed at the standard 22% corporate rate. Instead, Denmark offers enhanced R&D deductions (up to 120% from 2028) and a cash credit for loss-making companies with R&D activities.

What is the withholding tax rate on royalties paid to a US company?

0% under the Denmark-US double taxation treaty, provided the US recipient is the beneficial owner of the royalty. No formal application is needed, but you must maintain documentation supporting the treaty exemption.

Are software license fees subject to Danish withholding tax?

Standard software license fees for off-the-shelf software are generally not treated as royalties and are not subject to withholding tax. However, custom software development and know-how transfers may be characterised as royalties and could be subject to WHT. Each case depends on the specific contractual arrangement.

How do I claim a treaty exemption from Danish royalty WHT?

You claim the exemption at source — the Danish payer reduces or zero-rates the WHT based on the applicable treaty or EU Directive. No prior SKAT approval is needed, but you must hold a beneficial ownership declaration from the recipient and maintain documentation supporting the exemption. If SKAT later determines the exemption was incorrectly claimed, the payer may be held liable for the unpaid tax.

What records must I keep for IP-related transactions?

Maintain: licence agreements, royalty calculation documentation, beneficial ownership declarations, transfer pricing documentation (DEMPE analysis, benchmarking), withholding tax returns (blanket 06.013), and correspondence supporting treaty/EU Directive exemptions. All records must be retained for 5 years.