Owning in Trieste, year after year

The annual bill, in brief

The one-off taxes you pay at purchase are another article. This one is about what follows: the charges that come round every year — including the one that never actually arrives in the post, which is precisely the one that catches foreign owners out.

For a non-resident owner in Trieste, the recurring public charges are two.

Charge	What it is	Trieste, as of 2026
ILIA	The regional property tax — Friuli Venezia Giulia's replacement for Italy's IMU	1.06% of the cadastral base; 0.70% with one form (below)
TARI	The municipal waste charge	Roughly €150–420 a year for homes of 100–150 m²

Condominium charges and utilities are contracts, not taxes, and vary too much to tabulate honestly; they belong to After the deed.

This region does its own thing

Most of Italy pays IMU on second homes. Trieste does not. Friuli Venezia Giulia is an autonomous region, and since 1 January 2023 it levies its own property tax instead: ILIA — Imposta Locale Immobiliare Autonoma, created by regional law 17/2022. The machinery is deliberately familiar — the same cadastral base as IMU, the same F24 payment form, the same June and December deadlines — but rates and reliefs are set here, and one of the local reliefs is genuinely useful to a foreign buyer. We'll come to it.

Two facts frame everything else:

• If the home is your abitazione principale — you are registered as resident there and actually live there — ILIA is zero. The exception is the grand cadastral categories A/1, A/8 and A/9 (stately apartments, villas, castles), which in Trieste pay 0.60% with a €200 deduction, as of 2026.
• A non-resident's home is never an abitazione principale, however much time you spend in it. You pay as a second home. For most readers of this page, that is the honest starting point.

The base is cadastral, not market

ILIA is not charged on what you paid. It is charged on the cadastral value: the property's official rendita catastale, revalued by 5% and multiplied by 160. Cadastral rents were fixed long ago and are revised rarely; the resulting base generally sits well below the market price.

That is the structural difference from a US-style property tax, which is typically reassessed against something close to market value, year after year. We will spare you a table of American mill rates — the point is not the percentage, it is the base. An ILIA bill does not go up because your street became fashionable.

Worked example, 2026 figures. A flat with a cadastral rent of €1,000: base = €1,000 × 1.05 × 160 = €168,000. At Trieste's ordinary second-home rate of 1.06%, ILIA is €1,781 a year. With the 0.70% option below, €1,176. Whether you paid €300,000 or €700,000 for the flat does not enter the calculation.

Trieste's rates, as of 2026

Trieste sets the ordinary second-home rate at 1.06% — the legal maximum, not the 0.86% regional default. No point dressing that up. The other rates worth knowing, from the city's official 2026 table: 0.65% for homes let on an agreed-rent contract (canone concordato), and the 0.60% plus €200 mentioned above for A/1-A/8-A/9 main residences.

One form takes a third off

Since tax year 2025, the region caps the rate on a private individual's first second home — the "prima seconda casa": the first residential building you own in the region other than a main residence — at 0.70%. Trieste applies exactly that in 2026. Against 1.06%, it is roughly a third off, every year the rule stands.

It is not automatic. The conditions, exactly:

• One residential building per person, in the whole region. Individuals only; no companies.
• Pertinenze — cellar, garage — are excluded and stay at the ordinary rate.
• The property may be let or lent out; the relief survives.
• You must file one telematic notice on the regional platform by 30 June of the year after the tax year (for 2026: by 30 June 2027). The deadline is a hard one — miss it and that year's relief is forfeit. Filed once, it holds for the years that follow.

For the typical international buyer — one home in the region — this is close to a formality, and worth about €600 a year in the example above. Have your commercialista file it in the first winter.

TARI: the one that does arrive

TARI is the municipal waste charge, computed on floor area and the number of occupants on record. Trieste's official 2026 tariffs put a 100–150 m² home at roughly €150–420 a year, regional surcharge included: about €153 for 100 m² with one occupant, about €417 for 150 m² with four.

Two practical notes:

• A new owner must declare the start of occupation to Esatto S.p.A., the city's collection agent, by 30 June of the following year; the charge itself runs from day one.
• How many occupants the rules presume for a home a non-resident keeps at his own disposal is a regulation-level detail. Have Esatto or your commercialista confirm it rather than assume.

Unlike ILIA, TARI does arrive: a pre-filled PagoPA notice, normally in three instalments across the year (May, September, early December), or a single payment in late May.

No bill will come

The commonest mistake we see in foreign owners: waiting for the ILIA bill. There isn't one. ILIA is self-assessed — you, or your commercialista, calculate it and pay it unprompted, in two instalments: on account by 16 June, balance by 16 December. Payment is by F24, Italy's standard tax form; the tax code for a residential building other than the main residence is 5901. Silence from the authorities does not mean nothing is due; the system assumes you know.

The first year is at least gentle in two respects: ILIA is pro-rated by month of ownership (a month counts as yours if you held the property for more than 15 days of it), and there is nothing to register for ILIA after the purchase itself — the notary's post-completion filings tell the municipality you own the place. The comune knows. It simply won't write.

Paying it from abroad

The F24 form wants an account at an Italian bank, or one enrolled in the F24 circuit. If you keep no such account, the accepted route — the same one Italy's finance ministry set out for non-resident owners back in 2012 — is a direct bank transfer to the municipality's own IBAN, quoting your codice fiscale, "ILIA", the tax year, and whether it is the June instalment or the December balance. Ask Esatto for the IBAN before the first deadline, not during it.

More comfortable still: anyone holding a mandate — typically your commercialista — can pay the F24 on your behalf from Italy. The wider mechanics of getting money into the country have their own article.

What you don't pay

If the home is not rented out, ILIA is the end of the story. Since 2023 it replaces income tax on the property's notional rental value — the same substitution rule IMU carries nationally. A non-resident whose only Italian holding is a non-rented home, with no other Italian income, files no Italian tax return at all. One property tax, one waste charge, done.

Rent it out and the picture changes: a return becomes due, and a rather civilised flat-rate regime becomes available. That is a subject of its own.

The sober footnote

This is an overview with 2026 figures, not advice; municipal rates and deadlines are re-set by annual deliberation, and your notaio and commercialista have the final word on your particular case. TriesteVillas stays alongside its owners after the deed — deadlines included. Questions: richieste@triestevillas.com · +39 331 8940822 (WhatsApp welcome).