Cyprus Notional Interest Deduction (NID) 2026: Article 9B, Reference Rates and the 80% Cap

The Cyprus Notional Interest Deduction (NID) is the single most powerful equity-financing incentive in EU corporate tax. Introduced in 2015 under Article 9B of the Income Tax Law N.118(I)/2002, it allows a Cyprus tax-resident company to deduct a deemed interest expense on new equity at a rate equal to the 10-year government bond yield of the country where the equity is employed, plus a 5% premium. Under the 15% corporate income tax in force from 1 January 2026, the cash value of every euro of NID has risen by twenty per cent compared to the prior 12.5% regime — turning the NID from a useful tool into a defining lever of Cyprus structuring.

This article sets out the mechanic precisely: what qualifies as new equity, how the 2026 reference rate is built country-by-country, how the 80% cap operates, where the GAAR and specific anti-abuse rules bite, and how to combine NID with the Cyprus IP Box without breaching either cap.

What the NID is

The NID is a deemed (notional) interest expense. In economic terms, it equalises the corporate tax treatment of equity and debt: a company financed with debt deducts real interest paid to lenders; a Cyprus company financed with new equity deducts a notional interest computed on that equity. There is no cash outflow, no cash receipt, and no withholding tax — the NID is purely a deduction in the corporate income tax computation.

Cyprus introduced the NID in 2015 as part of a wider reform package to attract long-term capital into Cyprus operating and financing structures, while remaining inside the EU Code of Conduct on business taxation and OECD BEPS standards. The regime was reviewed and confirmed as not harmful by the EU Code of Conduct Group in 2019 (file CY020), subject to the existing anti-abuse architecture.

Legal basis: Article 9B of Income Tax Law N.118(I)/2002

Article 9B sits in the deductions section of the Income Tax Law. The statute provides that a Cyprus tax-resident company, and a Cyprus permanent establishment of a non-resident company, may deduct from its taxable income an amount equal to the product of (i) the new equity introduced into the company on or after 1 January 2015, and (ii) the reference rate defined in the article. The deduction is capped at 80% of the taxable income generated by the assets financed with that new equity.

Article 9B is supplemented by interpretative circulars issued by the Tax Department, the annual reference-rate notice published each March, and the general anti-abuse machinery in Article 33 of the Assessment and Collection of Taxes Law N.4/1978 (the ATAD GAAR transposed in 2019).

What counts as new equity

Qualifying new equity is paid-up share capital and share premium introduced into the company on or after 1 January 2015, whether in cash or in kind. In-kind contributions must be supported by an independent valuation acceptable to the Tax Department; intra-group transfers of assets at book value generally do not establish fresh, defensible equity.

Conversion of bona fide debt into equity can qualify, but only to the extent the debt represented funds genuinely advanced in cash to the Cyprus company. Trade payables, accrued management charges or intercompany balances that were never funded with cash do not crystallise into qualifying new equity on conversion. Capitalised retained earnings accumulated before 2015 do not qualify; capitalised post-2015 retained earnings can qualify if they are properly converted into share capital through a bonus issue.

The 2026 reference rate

The reference rate is the 10-year government bond yield of the country in which the new equity is invested, measured as at 31 December of the prior year, plus a 5% premium. Where the company invests the new equity in Cyprus operating assets, the Cyprus yield applies. Where the new equity funds an investment in a foreign asset (for example, a loan receivable from a foreign subsidiary, or shares in a foreign operating company), the relevant country's bond yield applies. If a country's yield is negative, it is set at zero — the 5% premium remains.

On 18 March 2026 the Cyprus Tax Department published the yields as at 31 December 2025 for use in the 2026 NID computation. Indicative figures from the announcement:

For countries not on the official list, the taxpayer may request the Tax Department to use Bloomberg index data or a reasonable proxy. The rate is fixed for the tax year and re-set each March.

The 80% taxable-income cap

The NID is capped at 80% of the taxable income generated by the assets financed with the qualifying new equity, computed before the NID itself. The cap is applied per source of income (per asset funded with new equity), not in aggregate at company level. Excess NID is not carried forward and is permanently lost. The deduction cannot create or increase a tax loss.

The per-source application of the cap is what makes equity tracing critical. If €10 million of new equity is on-lent to two subsidiaries on different terms, each on-loan is treated as a separate source and each carries its own 80% ceiling. A company with high-yield foreign interest income on one tranche cannot use a NID surplus there to shelter a low-yield tranche elsewhere.

Worked example under the 15% rate

Consider a Cyprus financing company ("CyFinCo") capitalised on 1 January 2026 with €20 million of new cash equity. CyFinCo on-lends the full amount to its German operating subsidiary at an arm's-length margin, earning €1,400,000 of net interest income in 2026 (after directly attributable funding and admin costs).

• New equity: €20,000,000
• Country of investment: Germany
• 2026 NID reference rate: 7.85% (2.85% German 10-year yield + 5%)
• Computed NID: €20,000,000 × 7.85% = €1,570,000
• Taxable income from the funded asset (before NID): €1,400,000
• 80% cap: €1,400,000 × 80% = €1,120,000
• NID allowed: €1,120,000 (capped; €450,000 of NID lost)
• Taxable income after NID: €1,400,000 − €1,120,000 = €280,000
• Corporate tax at 15%: €42,000
• Effective tax rate on the €1.4m of net interest: 3.0%

Without the NID, the same €1.4 million would have been taxed at 15% — €210,000 of tax. The NID saves €168,000 of cash tax in this year, equivalent to an after-tax return enhancement of approximately twelve percentage points on the deployed €20 million.

Anti-abuse rules: GAAR and Article 9B SAARs

Article 9B is enforced behind three layers of anti-abuse machinery. The general anti-abuse rule (GAAR), transposed from ATAD I and in force from 1 January 2019, disregards arrangements (or series of arrangements) put in place with the main purpose, or one of the main purposes, of obtaining a tax advantage that defeats the object or purpose of the applicable tax law, where the arrangements are not genuine because they are not put in place for valid commercial reasons reflecting economic reality.

On top of the GAAR, Article 9B itself contains specific anti-abuse rules (SAARs) targeted at NID:

• Old-to-new capital reshuffles. Transactions among related parties whose main purpose is to convert pre-2015 equity or pre-2015 reserves into post-2015 qualifying new equity are disregarded.
• Related-party loan-to-equity recharacterisations. Conversion of related-party debt that did not represent a genuine cash advance — or that was itself funded by circular flows back to the contributor — is denied NID.
• Circular equity contributions. Where a contributor funds an equity injection using a loan that the Cyprus company (or a related party) ultimately funds back, the contribution is treated as not introducing new equity.
• Equity used to acquire assets from related parties. Where new equity is used to acquire assets from a related party and the transaction is not commercially driven, the NID can be denied to the extent the acquired assets do not generate genuine new taxable income for Cyprus.

Cyprus has also implemented the ATAD interest limitation rule (the 30%-of-tax-EBITDA cap), but that rule applies to real net borrowing costs and does not directly limit the NID. Practitioners nonetheless model both regimes together, because a structure that maximises NID on equity and also pays material related-party interest may face scrutiny from both directions.

Substance and transfer-pricing documentation

Since 1 January 2022 Cyprus has applied formal OECD-aligned transfer pricing rules with Local File and Master File documentation thresholds. Any NID claim that involves intra-group on-lending of the new equity (the archetypal Cyprus financing structure) must be supported by a contemporaneous benchmarking analysis demonstrating an arm's-length margin on the on-loan. The Tax Department will not allow NID on equity used to fund non-arm's-length intra-group lending.

Substance requirements run in parallel: Cyprus-resident directors actually exercising strategic and financial decision-making in Cyprus, physical board meetings minuted in Cyprus, and operational capacity proportionate to the assets held. See our Cyprus economic substance guide for the full substance checklist. A structure with strong NID arithmetic but weak Cyprus residency substance is exposed both on the NID itself (under the GAAR) and on the underlying treaty positions.

Stacking NID with the IP Box

The NID and the Cyprus IP Boxare not mutually exclusive. A typical stack: new equity is injected into a Cyprus IP-development company, traced into qualifying R&D expenditure and qualifying IP assets. The IP Box gives an 80% deduction on the qualifying IP profit (per-asset, post-nexus). The NID gives a deemed interest deduction on the new equity, capped at 80% of the taxable income from the assets funded with that equity.

Because both reliefs are subject to their own 80% caps and apply at different layers of the tax computation, modelling the stack requires attribution of equity to specific assets and segregation of qualifying from non-qualifying income streams. Done properly, a well-capitalised Cyprus IP company can drive its effective rate on qualifying income to the low single digits — but only where the substance, TP file and equity-tracing documentation are watertight.

Common mistakes that kill the deduction

1. Untraced equity. If the company cannot show, in accounting and bank records, which assets the new equity funded, the 80% per-source cap cannot be applied and the Tax Department defaults to the most restrictive interpretation.
2. Capitalising pre-2015 reserves. A bonus issue that capitalises pre-2015 retained earnings does not create qualifying new equity. The reserves had to be accumulated post-2015 to qualify.
3. Loan-to-equity conversions without cash trace. Only loans representing a genuine prior cash advance qualify on conversion. Trade payables, accrued management fees and intercompany balances do not.
4. Missing TP file. Where new equity is on-lent intra- group, the absence of a benchmarking study lets the Tax Department adjust the income downward (eroding the 80% cap) and, in extreme cases, disallow the NID under the GAAR.
5. Wrong country yield. Defaulting to the Cyprus yield when the equity actually funds foreign assets understates the rate; defaulting to a high-yield foreign rate without tracing overstates it. Both invite adjustment.
6. Carry-forward assumption. Treating unused NID as carried forward is a common audit point. It is not — it is permanently lost in the year of accrual.

How to claim NID

The NID is not pre-approved by the Tax Department. It is computed by the taxpayer and claimed in the annual corporate income tax return (TD4), supported by a working paper showing the new-equity register, the country-of-investment allocation, the applicable reference rates, and the per-source 80% cap. Suggested workflow:

1. Set up a new-equity register on incorporation or first injection — date, amount, contributor, cash trace, asset funded. Maintain it perpetually.
2. Document the country of investment for each tranche, with bank statements and loan or asset acquisition documents.
3. Apply the published reference rate for each country for the tax year (rates change every March).
4. Prepare a contemporaneous TP file on any intra-group on-lending of the new equity, ideally as part of the year-end audit pack.
5. Compute the per-source 80% cap before applying NID, and document the excess (lost) NID for transparency.
6. Disclose the NID in the TD4 with a supporting schedule, and align the corporate tax provision in the financial statements with the claim.
7. Consider a binding tax ruling for novel structures. See our guide to Cyprus advance tax rulings for the procedure and fee schedule.