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Income Tax Return Ireland | Form 11 & Self Assessment - TAS Consulting
Income Tax Return Ireland

Expert Form 11 & Self-Assessment Tax Returns in Dublin

Filing your Irish Income Tax Return accurately requires navigating complex reliefs, allowances, and Revenue ROS requirements. At TAS Consulting, we simplify self-assessment for sole traders, landlords, company directors, and proprietary employees across Dublin.

★★★★★ Specialist Form 11 & Self-Assessment Accountants
Self-Assessment Expertise

Mastering Irish Income Tax and Form 11 Submissions

In Ireland, individuals who earn non-PAYE income—such as self-employed earnings, rental profits, foreign income, or proprietary directorships—are legally required to file an annual income tax return using Revenue's Form 11 via the Revenue Online Service (ROS).

Missing deductions, miscalculating preliminary tax, or filing late can lead to substantial interest charges and Revenue penalties. Our chartered tax team ensures your return is fully optimized, completely compliant, and submitted well ahead of the deadline.

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Complete Form 11 preparation and electronic filing via ROS
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Identification of all legitimate business expenses and personal tax credits
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Expert preliminary tax calculations to prevent underpayment interest
Taxpayers

Who is Required to File an Income Tax Return in Ireland?

You must file a Form 11 self-assessment tax return if you fall into one of the following taxpayer categories:

Sole Traders & Freelancers

Individuals running their own business, contracting, or freelancing as a sole trader in Ireland.

Property Landlords

Residential and commercial property owners generating rental income who must declare profits and expenses.

Proprietary Directors

Company directors who own or control more than 15% of the ordinary share capital of an Irish company.

Non-PAYE Income Earners

Individuals with significant investment income, foreign earnings, or capital gains alongside standard employment.

Maximizing Savings

Essential Tax Reliefs & Allowances

We ensure you claim every applicable credit and deduction to legally minimize your income tax liability.

Earned Income Credit

Claiming the standard tax credit available to self-employed individuals and proprietary directors in Ireland.

Business Expense Deductions

Deducting allowable operational costs, motor expenses, home office utility bills, and professional subscriptions.

Rental Expense Relief

Deducting mortgage interest (where applicable), repairs, insurance, and management fees for landlords.

Pension Contribution Relief

Maximizing tax relief on personal retirement savings accounts (PRSAs) and occupational pension contributions.

Medical & Health Expenses

Claiming 20% tax relief on unreimbursed medical, dental, nursing home, and prescription expenses.

Capital Allowances

Claiming wear and tear allowances on business equipment, machinery, office technology, and commercial vehicles.

Compliance Timelines

Key Income Tax & Pay & File Deadlines

Self-assessment taxpayers in Ireland operate under the annual Pay & File system managed through Revenue ROS.

Form 11 Filing
Mid-November

Return of Income Deadline

The statutory deadline for filing the Form 11 tax return for the previous tax year when utilizing Revenue ROS online filing.

Tax Settlement
Mid-November

Balance of Income Tax

Payment of the final balance of income tax owed for the preceding tax year is due concurrently with the Form 11 submission.

Advance Tax
Mid-November

Preliminary Tax Payment

Payment of preliminary income tax for the current ongoing tax year, typically calculated as 100% of the prior year's liability.

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Expert Answers

Frequently Asked Questions

What is a Form 11 tax return in Ireland?

Form 11 is the official comprehensive income tax return form issued by Irish Revenue. It is used by self-employed individuals, sole traders, landlords, and proprietary directors to declare all sources of income, claim tax credits, and calculate final tax liabilities.

When is the deadline to file my self-assessment tax return?

The standard Pay & File deadline for filing your Form 11 and paying preliminary tax falls in mid-November following the end of the tax year, provided you file electronically through Revenue ROS.

What expenses can I claim as a sole trader or landlord?

Sole traders can deduct ordinary and necessary business expenses such as motor costs, software, stationery, and advertising. Landlords can deduct insurance, maintenance, agent fees, and eligible mortgage interest.

What is preliminary tax and how is it calculated?

Preliminary tax is an advance payment of income tax for the current year. In Ireland, it is safely calculated as 100% of your prior year's net tax liability to avoid underpayment interest charges.

Professional Insights

Latest Income Tax & Self-Assessment Articles

Expert guides and tips on navigating Irish self-assessment, Form 11 filing, and tax planning.

Self Assessment

A Step-by-Step Guide to Filing Form 11 in Ireland

Everything sole traders and directors need to know about preparing and submitting their annual tax return via ROS.

Landlord Tax

Top Tax Deductions Every Irish Property Landlord Should Know

Maximize your rental property profitability by correctly claiming allowable expenses and repair costs.

Preliminary Tax

Understanding Preliminary Tax Rules and Avoiding Penalties

How to calculate your advance tax liability accurately and protect your business from Revenue interest charges.

Tax Reliefs

Maximizing Personal Tax Credits and Allowances in Ireland

Key strategies to ensure you never miss out on earned income credits, medical reliefs, and pension deductions.

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Unit 80, Cherry Orchard Business Park, D10NX96, Dublin 10, Ireland

Monday to Friday: 0800 hours – 1700 hours
Saturday & Sunday: Closed

Email: moh@tasconsulting.ie

Mobile: +353 85 1477625