Payroll Tax Withholding in Italy: A Practical Guide for Employers
As a withholding agent, you must deduct IRPEF, INPS contributions, and regional/municipal surtaxes every month. Here are the deadlines, amounts, and penalties explained clearly.
In a Nutshell
When you pay an employee, you're not just handing over a salary: by law you are the sostituto d'imposta (withholding agent). You must calculate, deduct, and pay to the state and to INPS (Italy's social-security agency — pensions, unemployment, family benefits) a portion of the gross pay every month. Fail to do so and the penalties are steep — above a certain threshold, you're looking at criminal liability.
At a Glance
| Cost | Mandatory obligation. No extra cost beyond the legally required withholdings. |
| Deadlines | F24 payment: by the 16th of the following month. CU certificate to employee: by 16 March. Modello 770: by 31 October. |
| Where (Rome) | Agenzia delle Entrate (Italy's tax-revenue agency) via Entratel/Fisconline; INPS online (UniEmens); F24 via bank or CAF. |
| Documents | Monthly payslip (cedolino), F24 (the universal Italian payment form for taxes and contributions), annual CU certificate, Modello 770 (annual withholding-agent declaration), INPS UniEmens monthly data flow. |
What It Means to Be a Withholding Agent
Article 23 of DPR 600/1973 requires anyone paying employment income to apply a monthly IRPEF (Italian personal income tax) withholding on account. This is not optional — it is a statutory obligation.
Here's how it works: each month you estimate the employee's full-year IRPEF liability, withhold one-twelfth of it from the payslip, and pay it to the Agenzia delle Entrate. In December — or when employment ends — you do the annual reconciliation (conguaglio): if you've withheld too much, you refund the difference to the employee; if too little, you deduct the shortfall.
Your monthly and annual obligations are clear-cut:
- Calculate the correct withholdings each month
- Deduct them from the gross pay before paying the employee
- Pay them by the 16th of the following month using the F24 form
- Issue the CU (Certificazione Unica) — the annual earnings certificate — to the employee and file it with the Agenzia delle Entrate by 16 March
- File the Modello 770 by 31 October
- Submit the UniEmens data flow to INPS each month by the end of the following month
Income Tax Withholdings: IRPEF and Surtaxes
IRPEF is the main tax. It's calculated on the employee's taxable income — gross pay minus the employee's INPS contributions. The 2026 IRPEF brackets (D.Lgs 216/2023) are:
| Bracket | Rate |
|---|---|
| Up to €28,000 | 23% |
| €28,001 to €50,000 | 35% |
| Over €50,000 | 43% |
From the gross IRPEF you subtract employment income tax credits (art. 13 TUIR — Italy's consolidated income tax code): for income up to €15,000 these are worth €1,955/year, tapering gradually to zero above €50,000. The employee may also request dependant family member credits (art. 12 TUIR) for a spouse, adult university-student children over 21, or other dependants. For minor children, since the introduction of the Assegno Unico Universale (Legge 46/2021 — the universal child-benefit payment), there is no longer a payslip credit — INPS pays the benefit directly to the family.
On top of IRPEF, you withhold every month:
- Lazio regional surtax: base rate 1.73% (with higher brackets for income over €35,000), spread across 11 instalments from January to November of the following year
- Rome municipal surtax (Roma Capitale): 0.9%, with an exemption for income up to €12,000, paid in advance and final instalments
Worked example — gross monthly pay €2,000, single employee with no dependants:
| Item | Amount |
|---|---|
| Gross pay | €2,000.00 |
| Employee INPS contributions (9.19%) | −€183.80 |
| Net IRPEF withheld monthly | −€270.73 |
| Lazio regional surtax | −€31.42 |
| Rome municipal surtax | −€16.35 |
| IRPEF bonus if applicable (Legge 21/2024) | +€100.00 |
| Net take-home pay | ~€1,597.70 |
Social-Security Withholdings: INPS Contributions
In addition to income-tax withholdings, you also deduct the employee's share of INPS contributions from the payslip. The rate depends on the applicable CCNL (national collective labour agreement):
- Commerce (white- and blue-collar): 9.19%
- Metalworking industry (blue-collar): 9.49%
- Construction: approximately 9.49%
- Professional practices: 9.19%
This employee share is paid together with the employer's contribution (which is much higher, around 28–30%) via the UniEmens INPS monthly data flow. Without a correct UniEmens submission, INPS cannot update the employee's pension record.
For low-to-middle earners, relief measures active since 2024 reduce the payslip burden: a contribution exemption of 7%/6% (Legge 207/2024) and a €100/month IRPEF bonus (Legge 21/2024). You apply both of these directly on the payslip.
F24 Payments: Deadlines and Main Tax Codes
All withholdings from month N must be paid by the 16th of month N+1 via electronic F24. The most common tax codes used with the Agenzia delle Entrate are:
| Code | Description |
|---|---|
| 1001 | Employment income withholdings (IRPEF) |
| 1601 | Regional surtax — employment income |
| 3848 | Municipal surtax — advance payment |
| 3847 | Municipal surtax — final payment |
If you have both tax debts and tax credits, you can use tax offsetting (compensazione): IRPEF refunds owed to employees can be offset against other tax debts (up to €2 million/year).
CU, Modello 770, and UniEmens: Annual Obligations
The CU (Certificazione Unica) is the document you hand to each employee by 16 March and also file electronically with the Agenzia delle Entrate. It contains all the employee's income and contribution data for the year — the employee uses it to file their Modello 730 (Italy's simplified annual tax return for employees).
The Modello 770 is the withholding agent's annual tax declaration, filed electronically by 31 October. It summarises all employees, amounts paid, withholdings deducted, and F24 payments made.
Mistakes to Avoid
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Withholding but not paying over. Deducting IRPEF from employees and not remitting it to the state is a criminal offence (art. 10-bis D.Lgs 74/2000) when the amount exceeds €150,000/year. Below that threshold, the administrative penalty is 30% with no voluntary-disclosure discount.
-
Forgetting the surtaxes. If you pay only IRPEF and neglect the regional and municipal surtaxes, differences pile up and surface at the annual reconciliation — with additional penalties on top.
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Assuming the employee will sort it out. They won't, and they can't — you are the withholding agent. The obligation cannot be delegated to the worker.
Special Cases
Employee with multiple employers: each employer applies credits independently, but the total may exceed the credits actually due. The employee can ask one of the employers not to apply any credits, avoiding a negative reconciliation at year-end.
Sick leave: the first 3 days are paid entirely by the employer (the so-called carenza period). From day 4 to day 20, INPS advances 50% of pay through the employer; from day 21 to day 180, it advances 66.66%. Income-tax withholdings apply to these allowances in the normal way.
13th and 14th month pay: these are subject to IRPEF and contributions just like regular pay, but they're calculated separately and without tax credits — so the effective withholding rate is higher than on a standard monthly payslip.
Performance bonuses (premi di risultato): up to €3,000/year for employees with annual gross income below €80,000, a flat 10% tax rate applies (D.Lgs 81/2015 art. 53). You apply this reduced rate directly on the payslip.
Late F24 payment: you can regularise the position using ravvedimento operoso (Italy's voluntary-disclosure penalty-reduction mechanism). Penalties range from 0.1% per day (within 14 days) to 4.29% (over one year late). Without voluntary disclosure: 30%.
Practical management: for one employee, a consulente del lavoro (certified payroll and labour consultant) in Rome costs roughly €80–120/month; for 2–5 employees, €150–300/month. If you have no experience with payslips, engaging a professional is the safest choice — the penalties for errors are far more expensive.
Official Sources
- Agenzia delle Entrate — Modello 770
- Agenzia delle Entrate — Certificazione Unica CU
- Agenzia delle Entrate — F24 and tax codes
- INPS — Employee contribution rates
- INPS — UniEmens
- Ministry of Labour — Employment relationships
- Regione Lazio — IRPEF regional surtax
- Roma Capitale — IRPEF municipal surtax
Legal references: DPR 600/1973 art. 23, DPR 917/1986 TUIR artt. 12-13, D.Lgs 314/1997, D.Lgs 216/2023, Legge 207/2024, D.Lgs 74/2000 art. 10-bis.