- IP Box
Cyprus IP Box explained: the 80% deduction and the 3% effective rate
How the Cyprus IP Box works in 2026: the 80% deduction, the 3% effective rate, which assets qualify and the nexus fraction. Sumly helps you set up the claim and tracks it.
Sumly team
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The Cyprus IP Box lets a company deduct 80% of the profit from a qualifying intellectual property asset, so only a fifth of that profit is taxed. From tax year 2026 that works out to an effective 3% on qualifying profit. If your company's value sits in software you wrote, this is probably the biggest tax decision you'll make. The companies we see lose it almost never fail on eligibility. They fail on records.
What the IP Box does
It taxes only a fifth of the profit from a qualifying asset. The IP Box treats 80% of the qualifying profit from a qualifying intangible asset as a deemed expense, under art. 9(1)(κ) of the Income Tax Law. Say your software product earns €200,000 of qualifying profit in 2026 and you built all of it in-house. The deduction removes €160,000. Tax applies to the remaining €40,000 at 15%, and the bill is €6,000. Without the regime the same profit would cost €30,000. That's 3% instead of 15%, on the same numbers.
Two words do the work there, qualifying and profit. Qualifying means the income must come from a qualifying asset, and the nexus fraction scales it, as we explain below. A software company's support contracts, consultancy hours and hardware resale generally sit outside it. Profit means income after the direct costs of earning it. The deduction applies to the profit from the asset, never to gross revenue.
The deduction is also optional. You can waive it, in whole or in part, in any tax year, which matters when it interacts with other reliefs. And it cuts both ways. If the qualifying calculation produces a loss, only 20% of that loss can be set against other income or carried forward.
Income Tax Law 118(I)/2002, art. 9(1)(κ) and ΚΔΠ 336/2016
The 80% deemed deduction on qualifying intangible-asset profits, and the nexus regulations that define qualifying assets, income and expenditure.
Official sourceChecked 26 August 2026
Which assets qualify
Patents that come from R&D, computer software, and a handful of other legally protected assets such as utility models, under the IP Box regulations, reg. 3 of ΚΔΠ 336/2016. There's also a catch-all class for other assets that are non-obvious, useful and novel, certified by a competent authority. It's only open to businesses with gross IP income of at most €7.5 million a year and €50 million group-wide turnover, both measured as five-year averages. Software companies rarely need it, because copyrighted software the company developed qualifies directly, with no certification.
Business names, brands, trademarks and image rights are expressly excluded. Older European IP regimes drew criticism for rewarding companies that parked a brand in a low-tax country. The current rules follow the OECD and tie the benefit to development work instead. A company that writes software is exactly who the regime is for.
One detail founders miss is that economic ownership is enough. You don't need registered legal title to the asset if your company bears the development cost and earns the income.
How the nexus fraction scales the benefit
By how much of the asset's development you funded yourself. The fraction multiplies your qualifying profit before the 80% deduction applies. Under reg. 4, the fraction is qualifying expenditure plus an uplift, divided by overall expenditure. Your own R&D and development bought from unrelated parties count as qualifying expenditure. Acquisition costs and development outsourced to related companies don't. The uplift, capped at 30% of qualifying expenditure, wins some of that back.
Say your company spent €200,000 on in-house development and paid a related company abroad €100,000 for more. Qualifying expenditure is €200,000. The uplift is the lower of 30% of that, which is €60,000, and the related-party cost of €100,000. So the uplift is €60,000. Overall expenditure is €300,000. The fraction is €260,000 over €300,000, roughly 87%, and only 87% of the asset's profit goes into the 80% deduction. If the €100,000 had gone to an unrelated contractor instead, the fraction would be 100%.
The fraction is cumulative over every year of the asset's life. Route development through a related company in year one and it still dilutes the claim in year five. So think about who owns the asset and who develops it before the first commercial line of code. Fixing it later costs real money.
What the 2026 tax reform changed
The numbers around the IP Box, not its mechanics. The corporate rate rose from 12.5% to 15% from tax year 2026, so the effective rate on fully qualifying IP profit moved from 2.5% to 3%. The 80% deduction, the nexus regulations and the 20% loss restriction are all unchanged. Our guide to the 2026 Cyprus tax reform walks through the wider package.
One more point. Groups with revenue above €750 million can see the benefit clawed back under Pillar Two, the OECD's global minimum tax rules. If that's you, this article isn't your planning memo. For a typical Cyprus SME it changes nothing.
What you have to track per asset
Separate books and records of income and expenditure for each intangible asset, under reg. 5. In practice you need to answer four questions, per asset and per year:
What is the asset?
Identify each qualifying asset separately, whether it's a product, a module or a patent. One undifferentiated bucket called 'the software' is hard to defend.
What income did it produce?
Separate the income that comes from the asset from everything else the company bills, such as support, services and resale.
What did it cost to develop?
Development spending per asset, detailed enough to tell your own R&D apart from work you bought in, and who you bought it from. Related and unrelated suppliers count differently.
What is the resulting fraction and deduction?
The nexus calculation and the deemed deduction, worked out on the asset's profit, and reproducible when someone asks.
This isn't a year-end job. Qualifying expenditure enters the nexus fraction in the year you incur it, and the fraction builds up over the asset's whole life. The most common failure we see is a company that clearly qualified but, a year later, could no longer separate the numbers convincingly.
How you claim it
As a deduction in the annual TD4 corporate return. There's no advance approval, no ruling and no separate notice. You make the election, or waive it, return by return. So a company that starts tracking properly this year can claim this year. We cover the steps in how to claim the IP Box, and the wider tax picture for a product company in Cyprus tax for software companies.
When the Tax Department or your auditor reviews the claim, the arithmetic is the easy part. They test the evidence underneath it: which invoices belong to which asset, which costs were development, and which of that development was yours. If each figure traces to a document in seconds, the review is short. If it traces to a spreadsheet someone put together in January, expect a long conversation.
Set the structure up before it matters
If you're still forming the company, decide who owns the IP, where development happens and how you'll separate the asset's income, all before revenue starts. The nexus fraction is cumulative, so a structure fixed in year three still carries the dilution from years one and two. You can restructure, but it's slower and more expensive than getting it right at company formation.
If the company is already running, the useful move is smaller. Start separating qualifying income and development costs per asset now, so next year's claim rests on twelve months of clean records.
Questions people ask
Common questions
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