Italy’s special flat-tax regime for qualifying new tax residents is designed as a long-term but time-limited tax regime.

For individuals who qualify, the regime can apply for a maximum of 15 tax years. Once the maximum period has been reached, the regime ends and cannot simply be renewed.

The special regime can apply for up to 15 tax years, beginning with the tax year in which the individual becomes an Italian tax resident and makes the relevant election.

This provides a defined period during which qualifying foreign-source income can benefit from the substitute-tax regime.

The 15-year period is a maximum, rather than an entitlement that must be used in full.

Once the maximum 15-tax-year period has expired, the individual cannot extend the same flat-tax election for another period.

The regime therefore needs to be viewed as a finite tax-residence strategy, rather than a permanent tax status.

After the regime ends, the individual's worldwide income will generally be subject to the ordinary Italian tax rules applicable at that time.

Once an eligible individual makes the election, the substitute tax applies on a year-by-year basis, provided the individual continues to satisfy the relevant requirements and pays the tax due.

The regime is therefore not a single payment made at the beginning of the 15-year period.

The annual substitute tax must continue to be paid for each year in which the regime is used.

An individual can choose to revoke the election before the 15-year maximum is reached.

This can be relevant if circumstances change and the ordinary Italian tax system becomes more favourable.

However, once the election has been revoked, the individual cannot subsequently restart the special regime for the remaining unused years.

This makes the decision to revoke an important one.

The regime is linked to Italian tax residence.

If an individual ceases to be an Italian tax resident, the special regime will generally cease to apply because the fundamental eligibility condition is no longer satisfied.

This means that maintaining the regime requires continued compliance with the relevant Italian residence requirements.

The individual must pay the applicable substitute tax for the relevant tax year.

Failure to satisfy the payment requirements can result in the loss of the regime and potentially create additional Italian tax consequences.

For high-net-worth individuals, the annual payment and filing obligations should therefore be monitored carefully throughout the period of the election.

Because the regime has a fixed maximum duration, investors should consider the timing of their move to Italy and the expected duration of their Italian tax residence.

For example, someone with substantial foreign-source investment income may want to model:

• The expected annual flat-tax liability;
• The amount and type of foreign income;
• The tax treatment in source countries;
• Italian-source income;
• Family circumstances;
• Inheritance and gift-tax considerations; and
• The tax position after the 15-year period expires.

Italy’s special flat-tax regime can apply for a maximum of 15 tax years.

Maximum duration: 15 tax years

Renewable: No

Annual payment: Yes

Revocable: Yes

Linked to Italian tax residence: Yes

In practice: The 15-year limit means the regime should be considered as part of a long-term tax-residence strategy. Before relocating, investors should model not only the potential tax savings during the flat-tax period, but also what happens when the 15 years end.