Learn › Filing taxes in Greece

In short: You file your Greek income tax return online by logging in to myAADE with your TAXISnet credentials, reviewing and correcting the prefilled E1 form (plus E2 for rents or E3 for business income if relevant), and submitting it. For tax year 2025 the filing window is 16 March to 15 July 2026, and the tax is paid in instalments or in a lump sum that qualifies for a small early-payment discount. The 2025 income is taxed on the old progressive scale (9% up to €10,000, 22% on €10,000–€20,000, 28% on €20,000–€30,000, 36% on €30,000–€40,000, 44% above €40,000); the reduced scale under Law 5246/2025 applies only from 2026 income, filed in 2027.

Filing your tax return in Greece

Kontoo editorial team · Updated 06/24/2026

In Greece, individuals declare their income for the previous calendar year by filing the E1 form with the Independent Authority for Public Revenue (AADE). Filing is online through the myAADE platform, and much of your form arrives prefilled. For tax year 2025, the window runs from 16 March to 15 July 2026. This lesson explains the process, the deadlines and how the bill is calculated, in plain terms — it is educational, not tax advice.

Log in to myAADE (myaade.gov.gr) with your TAXISnet credentials. If you do not have them, you can obtain them via gov.gr or a Citizens Service Centre (KEP).
Open the income tax return service and review the prefilled E1 form — check personal details, your IBAN, employment and pension income, family status and dependent children. Add supplementary forms if they apply: E2 for rental income and E3 for business or self-employed activity.
Correct anything that is wrong or missing. AADE pre-populates from employer and other reported data, but the responsibility for accuracy is yours.
Submit the return before the deadline. The system shows the calculated tax (a refund or an amount due) and your payment options before you finalise.

What matters

Every tax resident of Greece, and anyone with Greek-source income, files an annual income tax return covering the previous calendar year. The core document is the E1 form, submitted electronically through myAADE — the digital platform of the Independent Authority for Public Revenue (AADE). There is no paper route for ordinary cases. What makes the Greek system distinctive is how much arrives prefilled. AADE collects data from employers, pension funds and other sources, so when you open your E1 the income figures, family status and many living-expense indicators are often already there. Your job is to verify and correct, not to type everything from scratch. Salaried employees and pensioners with no other income may find very little to change; people with rental income add an E2, and the self-employed or business owners add an E3. The calendar follows a predictable rhythm. For tax year 2025, the platform opens on 16 March 2026 and the on-time deadline is 15 July 2026. Tax is then due — typically payable in monthly instalments through to early the following year, or in a single payment by 31 July 2026 that earns a small discount. If you spot a mistake after submitting, penalty-free amended returns are generally possible within the filing window. One point worth flagging: the return you file in 2026 is for income earned in 2025, so it uses the 2025 tax scale — the old progressive brackets of 9% up to €10,000, 22% on €10,000–€20,000, 28% on €20,000–€30,000, 36% on €30,000–€40,000 and 44% above €40,000. A separate reform (Law 5246/2025) lowered several rates from 1 January 2026, replacing them with a reduced scale (9/20/26/34/39/44, top rate from €60,000) — but those apply to tax year 2026, which you will file in 2027. When you read about rate cuts, check which tax year they cover.

ExampleSuppose a salaried worker had €28,000 of taxable employment income in tax year 2025. Greece taxes income in progressive bands. On the old 2025 scale of 9% up to €10,000, 22% on €10,000-€20,000, and 28% on €20,000-€30,000, the calculation is: €10,000 x 9% = €900; €10,000 x 22% = €2,200; €8,000 x 28% = €2,240. That is roughly €5,340 in income tax before any deductions, withholdings or credits (such as the reduction for dependants or tax already withheld by the employer). Because employers withhold tax through the year, the E1 often results in a small balance or refund rather than the full amount. Note this uses the old scale that applies to 2025 income; the reduced scale under Law 5246/2025 only applies to 2026 income, filed in 2027. This is a rounded illustration for tax year 2025 — verify the current scale and any reductions on the AADE website.

Use the official portal at myaade.gov.gr to see your prefilled return, and Kontoo to set aside money each month for a possible tax bill so the July payment is not a surprise. Figures here are as of 2026 — check the AADE source when in doubt.

In depth

Why so much is prefilled

AADE receives income data directly from employers, pension funds and other payers and feeds it into your E1. This reduces errors and effort, but it shifts your task from data entry to verification. If a figure looks wrong, you correct it in the form rather than ignoring it — the submitted return is what counts, prefilled or not.

Filing for income earned, not the year you file

A tax return always looks backward: the one filed in spring-summer 2026 covers income earned in 2025, so it uses the old 2025 scale (9% up to €10,000, then 22%, 28%, 36% and 44%). That matters when reading about new rates. The reduced brackets under Law 5246/2025 take effect from 1 January 2026, so they shape the return you will file in 2027, not the 2025 return you are filing now.

Discounts and instalments

Greece offers a choice: pay the assessed tax in monthly instalments, or settle the full amount early for a modest lump-sum discount that shrinks the later you file. Setting money aside through the year — for example in a dedicated Kontoo category — makes the lump-sum option realistic and avoids scrambling before the 31 July payment date.

Checklist

The E1 income tax return is filed online through the myAADE platform using TAXISnet credentials.
For tax year 2025, the on-time filing window runs from 16 March to 15 July 2026.
Much of the E1 is prefilled by AADE, but you remain responsible for checking and correcting it.
Paying the full amount early can earn a small lump-sum discount; otherwise tax is paid in instalments.

Common myths

Myth: If my return is prefilled, I do not need to check it.

Reality: The prefilled data can be incomplete or wrong, and the legal responsibility for accuracy stays with you. Review every field — income, IBAN, family status and dependants — before you finalise, and add E2 or E3 if they apply.

Myth: The reduced 2026 tax rates apply to the return I file in 2026.

Reality: No. The return filed in 2026 covers 2025 income, taxed on the old scale (9/22/28/36/44). The reduced brackets under Law 5246/2025 take effect from 1 January 2026, so they apply to 2026 income that you file in 2027 — not to the 2025 return.

Sources

Frequently asked questions

What is the deadline to file in 2026?

For tax year 2025, returns are filed on time until 15 July 2026, with the platform open from 16 March 2026. Certain taxpayers (for example, individuals who participate in entities keeping single-entry books) have until 31 July 2026. These dates are as of 2026 — confirm on the AADE website, as the government can extend them.

What are E1, E2 and E3?

E1 is the main personal income tax return that everyone files. E2 is the supplementary form for income from immovable property, such as rent you receive. E3 is the form for income from business or self-employed activity. You attach E2 and E3 only if they apply to you; the E1 then pulls in their results.

Which tax scale applies to the return I file in 2026?

The 2026 filing season covers your 2025 income, which is taxed on the old progressive scale: 9% up to €10,000, 22% on €10,000–€20,000, 28% on €20,000–€30,000, 36% on €30,000–€40,000 and 44% above €40,000. The reduced brackets introduced by Law 5246/2025 (9/20/26/34/39/44, with the top rate from €60,000) take effect from 1 January 2026, so they apply to 2026 income that you will file in 2027 — not to the 2025 return. Check the official source for tax year 2025 before relying on a specific figure.

Do I get a discount for paying early?

Yes. If you file early and settle the full amount by 31 July 2026, AADE applies a small lump-sum discount that decreases the later you file (commonly in the region of 2-4%). The exact percentages and dates are set each year — check the official source for tax year 2025 before relying on a specific number.

All lessons · Glossary · Editorial · Kontoo does the math and explains – this is general education, not tax, legal or financial advice.

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