Modelo 420 IGIC: Filing Deadlines and Guide 2026

Modelo 420 IGIC is the mandatory quarterly declaration for the Impuesto General Indirecto Canario (IGIC) that must be filed by self-employed workers (autónomos) and businesses operating in the Canary Islands. It works similarly to Modelo 303 (mainland IVA), but with significantly lower tax rates — 7% standard compared to 21% for IVA — and is independently administered by the Agencia Tributaria Canaria (ATC).

What is Modelo 420?

Modelo 420 is the quarterly self-assessment of IGIC for self-employed workers (autónomos) and businesses in the Canary Islands. Through this form you declare the difference between the IGIC you have charged your clients (IGIC repercutido) and the IGIC you have paid on your purchases (IGIC soportado). It is filed with the Agencia Tributaria Canaria, not with the mainland AEAT, as the ATC independently manages all the archipelago's own taxes.

Who must file Modelo 420

The following are required to file Modelo 420:

• Self-employed workers (autónomos) in the Canary Islands carrying out activities subject to IGIC
• Companies and entities with a registered office or permanent establishment in the Canary Islands
• Professionals who charge IGIC to their clients for services provided in the archipelago

Important: The Canary Islands are outside the territorial scope of Spanish IVA. Many transactions carried out in the islands are reported through IGIC and Modelo 420, but dealings with mainland Spain, the Balearic Islands, or foreign counterparties can still require an IVA place-of-supply analysis.

Filing deadlines for Modelo 420

Modelo 420 is filed quarterly, with the following deadlines:

• Q1 (January–March): April 1–20
• Q2 (April–June): July 1–20
• Q3 (July–September): October 1–20
• Q4 (October–December): January 1–31

If the last day of the deadline falls on a weekend or public holiday, it moves to the next business day.

If you opt for direct debit (domiciliación), the ATC publishes a shorter online filing window. For 2026, the official calendar sets it through the 15th for Q1–Q3 and through January 25 for Q4, with extensions when the deadline falls on a non-business day.

Official references: ATC Modelo 420 page and ATC 2026 direct-debit calendar.

How IGIC works in Modelo 420

The IGIC calculation in Modelo 420 follows the same logic as IVA:

IGIC to pay = IGIC charged − IGIC paid on expenses

• IGIC charged (IGIC repercutido): The tax you charge your clients on your invoices
• IGIC paid (IGIC soportado): The tax you pay on your purchases and deductible business expenses

If the result is positive, you must pay the difference. If negative, you can offset it in future quarters or request a refund in the Q4 declaration.

Practical example

A freelance graphic designer (autónomo) in Las Palmas invoices €5,000 in the quarter:

• IGIC charged: 5,000 × 7% = €350
• IGIC paid on expenses (software, supplies, internet): 1,200 × 7% = €84
• Result to pay: 350 − 84 = €266

Comparison: IGIC (Modelo 420) vs IVA (Modelo 303)

Aspect	IGIC in the Canary Islands	IVA in Mainland Spain and Balearic Islands
Standard rate	7%	21%
Reduced rate	5%	10%
Super-reduced rate	3%	—
Zero rate	0%	4%
Declaration form	Modelo 420	Modelo 303
Filed with	Agencia Tributaria Canaria (ATC)	AEAT
Annual summary	Modelo 425	Modelo 390

The fiscal advantage of IGIC is clear: the standard rate of 7% compared to 21% for IVA represents a saving of 14 percentage points for business activities in the Canary Islands.

IGIC tax rates

The consolidated Canary Islands IGIC law currently includes 0%, 3%, 5%, 7%, 9.5%, 15%, and 20% rates. The default rate is 7%, but the exact rate depends on the specific operation. For the official legal breakdown, see the consolidated text published in the BOE.

Deductible IGIC expenses

You can deduct IGIC paid on expenses linked to your professional activity:

• Office supplies and materials
• Computer equipment and software
• Professional services (tax advisors, lawyers)
• Phone and internet (business portion)
• Business premises rental
• Vehicle expenses (with limitations)

Always keep complete invoices with all fiscal data to support your deductions.

How to file Modelo 420: ATC Electronic Headquarters

The ATC official page states that telematic filing is the general rule, with limited exceptions and a help-program/paper route for excepted cases. Follow these steps for the online route:

1. Gather your documentation: records of invoices issued and received for the quarter
2. Calculate IGIC: subtract IGIC paid on expenses from IGIC charged
3. Access the ATC Electronic Headquarters with an accepted electronic ID method such as a digital certificate or DNIe, DNI + PIN, or Cl@ve
4. Complete Modelo 420 with the calculated amounts
5. Submit the declaration within the quarterly deadline

All IGIC enquiries and filings are handled directly by the Agencia Tributaria Canaria, which independently manages the archipelago's own taxes.

Consequences of late filing

If you do not file Modelo 420 on time, the Agencia Tributaria Canaria may apply the following under the Ley General Tributaria:

• Late filing surcharge (art. 27 LGT) without prior notice: 1% plus an additional 1% for each full month of delay (from 1% to 12% during the first 12 months), with no penalties or late-payment interest
• 15% surcharge + late-payment interest if the delay exceeds 12 months
• Penalty for non-filing (art. 191 LGT): between 50% and 150% of the unpaid amount if the Agencia Tributaria Canaria issues a formal notice before you file voluntarily

If you discover an error in a previously filed declaration, you can correct it by submitting a supplementary declaration (declaración complementaria — if you owe additional tax) or a rectification request (solicitud de rectificación) to the ATC (if the error is in your favour).

Related articles

• Modelo 303: Quarterly IVA — the mainland equivalent of Modelo 420 for autónomos operating outside the Canary Islands
• Modelo 425: Annual IGIC summary — required alongside the Q4 Modelo 420 filing
• Tax obligations for autónomos — overview of all declarations
• Tax calendar for autónomos — all deadlines at a glance