Interest Deductions Italy: Art. 96 TUIR & SRL Guide 2026

If your Italian SRL's annual net interest expense is €3 million or less, the interest is fully deductible with no complex calculation required. This €3M safe harbour is the most important number in Italian interest deductibility rules — and most foreign owners of Italian SRLs have never heard of it.

Most foreign SRL owners who lend money to their Italian subsidiary face three problems simultaneously: they don't know about the €3M threshold; they don't have a formal loan agreement with an arm's-length interest rate documented; and they don't realize that the interest payments back to them may attract 26% Italian withholding tax that should have been managed before the first payment was made.

This guide answers the exact question foreign owners ask: "Can my SRL deduct this interest?" — with the €3M threshold, a worked ROL calculation, withholding tax rates by country, and the transfer pricing documentation needed to avoid a 90–180% penalty. It also covers the January 2024 ACE abolition and what it means for your financing strategy.

Company Italy's Milan commercialisti document intra-group loans, prepare TP benchmarks, and manage WHT compliance for foreign-owned Italian SRLs.

Important: This article provides general tax information for educational purposes. Italian tax law changes frequently. Always consult a qualified Italian tax advisor before making tax or financial decisions.

Italy's Interest Deduction Rule: The 30% ROL Cap and the €3M Safe Harbour

Article 96 TUIR establishes two rules that apply depending on the level of net interest expense:

The safe harbour in practice: For a typical foreign-owned Italian SRL with a modest shareholder loan — say €2M at 5% = €100,000 annual interest — the interest is fully deductible with no ROL calculation needed. The €3M threshold is net interest (interest expense minus interest income). Most SME SRLs operate well within this limit.

When the cap applies — worked example:

• SRL ROL (tax EBITDA): €500,000
• 30% of ROL: €150,000 (deductible limit)
• SRL net interest expense: €200,000
• Deductible this year: €150,000
• Excess carried forward indefinitely: €50,000
• Reminder: if net interest had been ≤€3M → full €200,000 deductible regardless of ROL

ROL definition: The risultato operativo lordo is essentially the Italian tax EBITDA — earnings before interest, tax, depreciation, and amortization, as adjusted for Italian tax purposes. It is not exactly the same as accounting EBITDA; certain adjustments apply under the TUIR. Your commercialista calculates this from the financial statements.

Net interest: Only the net amount (interest expense minus interest income) is subject to the cap. If the SRL earns €20,000 in interest on cash deposits and pays €200,000 in loan interest, the net is €180,000 — this net figure is tested against €3M and (if over €3M) against the 30% ROL.

Carry-forward: Excess interest above the cap is not lost permanently — it carries forward indefinitely to future years when ROL grows. Unused ROL capacity also carries forward for up to 5 years, allowing high-profit years to absorb future excess interest.

Group consolidation benefit: Within a domestic tax consolidation group (Art. 117–129 TUIR), ROL capacity is pooled. A low-interest subsidiary can contribute its unused ROL capacity to offset excess interest in a high-leverage sibling company.

For how interest deductions reduce the IRES taxable base, see our Italian corporate tax guide.

Italy vs. Old Thin Cap: What Changed and Why It Matters

Many guides still describe Italy as having a "thin capitalisation" rule — a fixed debt-to-equity ratio limit. Italy abolished debt-to-equity thin capitalisation in 2019.

Italy implemented the EU Anti-Tax Avoidance Directive (ATAD 1) via D.Lgs. 142/2018. The old thin cap rule — which denied interest deductibility when related-party debt exceeded 4× equity — was replaced entirely by the earnings stripping approach. Under earnings stripping, a highly indebted but profitable company can still deduct all its interest if it is within the 30% ROL threshold. An undercapitalised but high-profit SRL is much better positioned than under the old ratio-based rule.

The IRAP interest rule — almost never explained in English content:

Under D.Lgs. 446/1997 Art. 5, interest expense is generally not deductible for IRAP purposes, regardless of the Art. 96 TUIR result for IRES. This is completely separate from the IRES interest deductibility analysis.

Practical impact on a leveraged SRL:

• The SRL pays IRAP on a base that includes interest expense (since interest is not deductible for IRAP)
• The SRL pays IRES after the Art. 96 deductibility limit has been applied (interest deductible up to 30% ROL)
• Combined effect: a high-leverage SRL pays both IRAP on the gross-of-interest base AND IRES on the remaining profit after partial interest deduction

This double burden makes highly leveraged Italian SRL structures materially more expensive than a headline IRES rate analysis would suggest.

For documentation of the intra-group loan itself, see the section below and our guide on transfer pricing documentation requirements.

Withholding Tax on Interest Paid to Your Foreign Holding Company

When the Italian SRL repays interest on a shareholder loan from its foreign parent, that outbound interest payment is subject to Italian withholding tax (WHT) — unless documentation for a treaty or EU directive exemption is in place before the payment is made.

Standard WHT on outbound interest to non-residents: 26% (Art. 26 D.P.R. 600/1973). On a €100,000 annual interest payment, the foreign parent receives only €74,000 net if no exemption applies.

EU Interest & Royalties Directive (D.Lgs. 143/2005): EU-resident associated companies holding ≥25% of the Italian SRL (or with a common EU parent holding ≥25% in both) can receive interest at 0% WHT. Requires: certificate of tax residence from the recipient's EU tax authority + beneficial ownership declaration. Must be submitted before the interest payment — the exemption cannot be applied retroactively.

Treaty reduced rates: Apply under bilateral double tax treaties; documentation required at source. Cannot retroactively apply after paying at 26%.

UAE lenders: Italy has no tax treaty with the UAE. All interest payments to UAE-based holding companies attract the full 26% WHT. This is a critical planning consideration for Gulf-based investors with Italian SRL subsidiaries.

Refund procedure: If 26% was withheld and a lower treaty rate applied, a refund can be claimed from Agenzia delle Entrate within 48 months — but cash is tied up in the process. Proactive documentation is always better than retroactive refund claims.

F24 remittance: The SRL must remit the withheld amount via F24 by the 16th of the month following the interest payment. For the full WHT compliance framework, see our guide on withholding tax in Italy.

Transfer Pricing Requirements for Intra-Group Loans

Every intercompany loan between the Italian SRL and its foreign parent must have an arm's-length interest rate — the rate that an independent bank would charge a borrower of similar creditworthiness in similar conditions. This is not optional for small companies.

Documentation checklist for a shareholder loan:

1. Formal written loan agreement (signed, dated, specifying principal amount, interest rate, repayment schedule, maturity date, governing law)
2. Board resolution of the Italian SRL approving the loan and the specific interest rate
3. TP masterfile (group overview) if applicable by company size
4. Country file / local file — functional analysis of the loan; CUP benchmark demonstrating the arm's-length interest rate
5. Certificate of tax residence of the foreign lender (for WHT treaty relief documentation)
6. Annual confirmation of outstanding loan balance (for ongoing TP documentation)
7. Group financing policy document confirming how the intra-group rate was determined

CUP method for loans: The Comparable Uncontrolled Price method uses comparable market interest rates as the benchmark. Euribor-based rates plus a credit spread appropriate to the borrower's creditworthiness are the typical starting point. TP specialists produce benchmark studies from commercial databases showing market rates for comparable borrowers.

Penalty without documentation: If Agenzia delle Entrate adjusts the interest rate — arguing, for example, that the rate is too low, reducing the SRL's IRES deduction — the adjustment triggers 90–180% surcharge on the additional IRES assessed, plus the additional IRES itself.

Penalty protection: If contemporaneous documentation is in place before the annual tax return is filed → penalty for the TP adjustment is reduced to 0%.

Professional cost benchmark: TP documentation for a single intra-group loan (country file + interest rate benchmark) typically costs €3,000–€10,000/year — minor compared to the 90–180% exposure on even a modest adjustment.

The 2024 ACE Abolition: How It Changes Your Financing Strategy

Before January 1, 2024, Italy offered the ACE (Aiuto alla Crescita Economica) — a notional return on equity increases that was deductible from the IRES taxable base. This partially offset the tax advantage that debt financing had over equity (since actual interest is deductible while equity returns are not).

Strategic implication post-ACE abolition: For a new Italian SRL set up in 2024 or later, the choice between capitalizing via shareholder equity vs. shareholder loans is now clearly weighted toward loans for IRES optimization — assuming the loan is within the Art. 96 €3M safe harbour or the 30% ROL limit, and the interest rate is properly documented for TP purposes.

Piano Transizione 5.0: The replacement mechanism introduced for 2024 is an investment tax credit for Industry 4.0 and green transition investments — not a general equity incentive. It applies only to qualifying capital expenditure, not to the general act of capitalizing the SRL.

Pillar Two interaction: For MNE groups with revenues exceeding €750M, the global minimum tax (15%) applies from FY2024. For these groups, debt vs. equity optimization must be modeled against Pillar Two top-up tax exposure.

FAQ

Q: What is the interest deduction limit for Italian companies?

Under Art. 96 TUIR, Italian companies can deduct net interest expense up to 30% of their ROL (risultato operativo lordo, approximately tax EBITDA). However, a key safe harbour applies: if net interest is €3 million or less, it is fully deductible with no ROL calculation required. The €3M threshold is net interest — interest expense minus interest income.

Q: Does Italy still have thin capitalisation rules?

No. Italy abolished its debt-to-equity ratio thin capitalisation rules in 2019 when it implemented ATAD 1 via D.Lgs. 142/2018. The replacement is earnings stripping: the 30% ROL cap with a €3M safe harbour. There is no longer a fixed debt-to-equity ratio limit for interest deductibility.

Q: Can unused interest deductions be carried forward in Italy?

Yes. Excess interest expense that exceeds the 30% ROL cap can be carried forward indefinitely and deducted in future years when ROL is sufficient. Unused ROL capacity from high-profit years can also be carried forward for 5 years to absorb future excess interest.

Q: How does transfer pricing apply to intra-group loans in Italy?

Under Art. 110(7) TUIR, the interest rate on any loan between an Italian SRL and its foreign affiliated company must be at arm's-length. The CUP method using comparable market rates is typically applied. Without contemporaneous TP documentation, a 90–180% penalty surcharge applies to any tax adjustment arising from a TP challenge.

Q: Is withholding tax applied to interest paid to foreign lenders in Italy?

Yes. The standard Italian WHT on outbound interest is 26% (Art. 26 D.P.R. 600/1973). EU-resident associated companies (≥25% holding) can access 0% under the EU Interest & Royalties Directive (D.Lgs. 143/2005). US lenders are typically reduced to 10% under the Italy-US Tax Treaty. UAE lenders face the full 26% — no Italy-UAE treaty exists.

Q: What is ROL and how is it calculated for the Italian interest deduction cap?

ROL (risultato operativo lordo) is Italy's tax EBITDA — earnings before interest, tax, depreciation, and amortization, adjusted for Italian TUIR purposes. It is not identical to accounting EBITDA; specific Italian tax adjustments apply. Your commercialista calculates it from the company's annual financial statements. The 30% ROL figure is the maximum net interest deductible in a given year if net interest exceeds the €3M safe harbour threshold. A high-profit year generates larger ROL capacity, allowing more interest to be deducted.

Q: What is Italy's position on interest deductions for real estate holding companies?

Italian real estate holding SRLs face specific limitations: Art. 96 TUIR applies, but financial companies and banks follow different rules under Art. 97 TUIR. Real estate entities classified as holding companies generally cannot benefit from the group consolidation ROL pooling mechanism available to operational entities. Additionally, IRAP applies separately on a basis that excludes interest expense deductions, creating a compounding tax burden for leveraged real estate structures. Specialist tax advice is essential before structuring a leveraged Italian real estate holding.

Q: Does the EU Interest & Royalties Directive apply to all EU parent companies?

The EU Interest & Royalties Directive (D.Lgs. 143/2005) provides 0% Italian withholding tax on interest paid to EU-resident associated companies — but only when the recipient holds at least 25% of the Italian SRL (or both entities are held at 25%+ by a common EU parent), the recipient is the beneficial owner of the interest, and a certificate of tax residence is submitted to the Italian SRL before the interest payment is made. The 0% rate cannot be applied retroactively — if the SRL pays interest at 26% without the documentation, a refund must be claimed from Agenzia delle Entrate within 48 months.

Q: What is the ACE regime and why was it abolished?

The ACE (Aiuto alla Crescita Economica) was a notional return on incremental equity increases that was deductible from the Italian IRES taxable base — partially offsetting the natural tax bias toward debt over equity financing. ACE was abolished from January 1, 2024, under L. 213/2023. The replacement mechanism introduced for 2024 is Piano Transizione 5.0 — an investment tax credit for Industry 4.0 and green transition capital expenditure. For new Italian SRLs established from 2024 onward, shareholder loans are now clearly more tax-efficient than equity contributions for IRES optimization, assuming proper arm's-length documentation.

Q: What is the penalty for an undocumented intra-group loan between an Italian SRL and its foreign parent?

If Agenzia delle Entrate adjusts the interest rate on an undocumented intra-group loan — arguing the rate is non-arm's-length — the adjustment triggers a 90–180% surcharge on the additional IRES assessed, plus the additional IRES itself. If contemporaneous transfer pricing documentation (a formal loan agreement, board resolution, TP country file, and CUP interest rate benchmark) is in place before the annual tax return is filed, the penalty for any TP adjustment is reduced to 0%. Professional TP documentation for a single intra-group loan typically costs €3,000–€10,000/year — minor compared to the penalty exposure on even a modest undocumented loan.

Q: Can interest carry-forwards be used after a company restructuring in Italy?

Excess interest carry-forwards (carried forward indefinitely under Art. 96(4) TUIR) generally survive corporate restructurings such as mergers and de-mergers under Italian domestic rules, subject to anti-avoidance provisions. However, the carry-forward benefit can be challenged if the restructuring was primarily motivated by tax rather than business reasons. Anti-abuse rules under Art. 10-bis of L. 212/2000 (the Italian Taxpayer Statute) apply to restructurings designed primarily to access carry-forward pools. Specialist advice from a commercialista with transfer pricing experience is required before any restructuring that involves companies with significant interest carry-forwards.

How We Can Help

For most foreign-owned Italian SRLs, the €3M safe harbour means interest on a shareholder loan is fully deductible — but only if the loan is formally documented, the interest rate is arm's-length, and the WHT on repayments to the foreign parent is correctly managed before the first payment. Non-compliance penalties are substantial: 90–180% on TP adjustments plus unmanaged 26% WHT.

Company Italy's Milan team documents intra-group loans, prepares TP interest rate benchmarks, and manages F24 WHT remittances for foreign-owned SRLs. Our offices in Milan, Rome, and Florence serve clients across Italy.

Get your intra-group loan documented before your next audit:

• Milan: +39 02 8088 1240 | Via Monte Napoleone 8, 20121 Milano
• Rome: +39 06 4520 7330 | Via del Corso 184, 00186 Roma
• Florence: +39 055 264 8120 | Via de' Tornabuoni 17, 50123 Firenze
• Email: info@company-italy.com

See our Italian tax advisory services or the Italian corporate tax guide.

This article is for general information only and does not constitute professional tax advice. Italian tax regulations change frequently — always verify with a qualified Italian tax professional. Contact our tax team for a consultation.