
Key updates to the 2025 ROS Form 11 manual introduce new rules for rental income reliefs and personal tax credits
Here are the key updates you need to know:
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.

Filing your 2025 Form 11 via the Revenue Online Service (ROS). Make sure to declare your 2026 Preliminary Tax alongside your 2025 self-assessment to avoid interest penalties
This brief guide provides Irish Revenue guidance on filing 2025 Form 11 Income Tax Returns, highlighting the crucial October and November 2026 deadlines. Drawing on official Revenue eBriefs, Tax and Duty Manuals, and recent Tax Appeals Commission determinations, we outline key obligations, updated form features, and practical compliance considerations for self-assessed taxpayers and tax agents.
The statutory pay and file deadline for the 2025 Form 11 Income Tax Return is 31st October 2026.
However, Irish Revenue has confirmed an extended deadline of Wednesday, 18th November 2026 for self-assessment taxpayers who use the Revenue Online Service (ROS). To qualify for this extension, you must complete both of the following actions through ROS:
Critical Compliance Note: If you only file or only pay through ROS, the extension is void. The standard 31st October 2026 deadline will apply, potentially resulting in late filing surcharges.
The same extended ROS deadline of 18th November 2026 applies to Capital Acquisitions Tax (CAT) returns and payments. This applies to gifts or inheritances with valuation dates falling in the year ending 31st August 2026.
The 2025 ROS Form 11 has been active since 1st January 2026, with major system updates deployed in April 2026. Taxpayers should note the following critical changes and tax credit increases:
Increased Personal Tax Credits for 2025
The Capital Gains Tax panel features new sections allowing self-assessed taxpayers to:
For clarity:
Requesting a deferral of CGT payments: This allows self-assessed taxpayers to claim a formal deferral of a liability directly on the return (such as the CGT deferral available on a business or farm transfer to a child under Retirement Relief).
Declaring previously deferred CGT that is now due: This enables taxpayers to report when a past deferral condition has failed or expired (such as a child selling a transferred asset before a required 12-year holding period), meaning the clawed-back tax has crystallised and fallen due.
For Clarity:
To avoid interest penalties, self-employed individuals must calculate and pay their 2026 Preliminary Tax by 31st October 2026 (or 18th November 2026 via ROS).
How to Calculate Preliminary Tax
Your payment must equal at least:
If you select “Nil” for your preliminary tax, you are officially declaring to Revenue that you anticipate your total tax liability for the upcoming year will be zero. If you underpay your preliminary tax (or declare “Nil” when you actually owed tax), you fail the statutory safe harbours. Revenue will treat the underpaid portion as overdue from the original deadline. Interest will accrue daily at a rate of 0.0219% backdated to that original due date.
When filing electronically via ROS, the Statement of Net Liabilities (SNL) is a screen that appears at the very end of the digital Form 11 submission process. You must complete the self-assessment panel, calculate the SNL, and sign/submit them together in the same session to finalize your return.
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.
If you’re a newly self-employed business owner, you are now officially part of the self-assessment tax system. This means you will need to file a Form 11 tax return with Revenue, on an annual basis. This annual filing requirement also applies to you if you:
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.
Budget 2026 introduced a wide range of updates across Ireland’s tax system. The following Tax Credits and Reliefs are being extended:
1. The Rent Tax Credit is being extended for a further three years. It is due to expire at the end of 2028.
For further information, please click link: https://www.revenue.ie/en/personal-tax-credits-reliefs-and-exemptions/land-and-property/rent-credit/index.aspx
2. The income tax deduction for landlords retrofitting properties is extended for another three years. It is available for works carried out up to 31st December 2028.
For further information, please click link: https://www.revenue.ie/en/property/rental-income/deduction-for-retrofitting-expenditure/index.aspx
3. The Income Tax Exemption for households which sell electricity from micro-generation back to the grid is extended for a further three years to 31st December 2028.
For further information, please click link: https://www.revenue.ie/en/tax-professionals/tdm/income-tax-capital-gains-tax-corporation-tax/part-07/07-01-44.pdf
4. The Mortgage Interest Tax Relief is being extended for a further two years. Relief will be available at the standard Income Tax rate, with the maximum 2025 relief capped at €1,250 per property and €625 per property for 2026.
For further information, please click link: https://www.revenue.ie/en/personal-tax-credits-reliefs-and-exemptions/land-and-property/mortgage/index.aspx
5. The USC Concession for medical card holders will be extended until 31st December 2027.
For further information, please click link: https://www.revenue.ie/en/corporate/press-office/budget-information/current-year/budget-summary.pdf
6. The €5,000 Vehicle Registration Tax (VRT) Relief for new electric vehicles is extended until 31st December 2026.
For further information, please click link: https://www.gov.ie/en/department-of-finance/speeches/statement-by-minister-donohoe-on-budget-2026/
7. Employee Benefit-in-Kind Relief for employer provided vehicles (for cars in categories A-D and to all vans) is to be extended, on a tapered basis, until the end of 2028.
For further information, please click link: https://www.revenue.ie/en/corporate/press-office/budget-information/current-year/budget-summary.pdf
8. Special Assignee Relief Programme (SARP) has been extended by 5 years to 2030.
For further information, please click link: https://www.revenue.ie/en/corporate/press-office/budget-information/current-year/budget-summary.pdf
9. Key Employee Engagement Programme (KEEP) has been extended to 31st December 2028 subject to approval from the European Commission.
For further information, please click link: https://www.revenue.ie/en/corporate/press-office/budget-information/current-year/budget-summary.pdf
10.Foreign Earnings Deduction (FED) has been extended by 5 years to 2030.
For further information, please click link: https://www.revenue.ie/en/corporate/press-office/budget-information/current-year/budget-summary.pdf
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.
Revenue eBrief No. 156/25 was published on 7th August 2025.
Tax and Duty Manual Part 38-06-01a has been updated to contain the following:
If an individual was tax compliant as at 31st December 2024, they can claim the RPRIR for 2024 provided:
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.

Income Tax Return. Filing Form 11. Self Assessment Personal Tax Returns. 31st October 2025 Filing Deadline
You will need to file an Income or Personal Tax Return on or before 31st October 2025 if you are one of the following:
The tax return deadline is Wednesday 19th November 2025 for those that file their Tax Return and pay their associated Tax liability through ROS.
If you do not use ROS, then the tax deadline is 31st October 2025.
In summary, you are required to:
On or before either (a) 31st October 2025 or (b) 19th November 2025 if you file through ROS
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.
As part of the Irish Revenue Commissioners’ Annual Non-Filer Programme, Notices will be sent to taxpayers who are currently registered for Income Tax or Corporation Tax but who have not filed Income Tax or Corporation Tax Returns for tax years up to and including 2023. Tax Agents will receive a ROS Inbox Notification on 31st January 2025 providing them with a list of clients who have been issued with a Reminder to File Notice. Please be aware that this notice is what is deemed to be a Level 1 Compliance Intervention.
If you have received a Notice but you are no longer considered to be a “Chargeable Person”, the advice is to cancel your Income Tax or Corporation Tax registration as soon as possible.
For full information on who is deemed to be a “Chargeable Person” please click:
According to Revenue’s “Reminder to file – Income Tax Return” Notice:
“This notice is a Level 1 Compliance Intervention in accordance with Revenue’s Compliance Intervention Framework. The non-filing of a required tax return by chargeable persons can result in a penalty charge and a more detailed review by Revenue. It is also an offence for which a person can be prosecuted. Further information on your rights and obligations under Revenue’s Compliance Intervention Framework can be found on www.revenue.ie.
In addition, if the tax return(s) is not filed it may lead to the loss or refusal of tax clearance.”
According to Revenue’s “Reminder to file – Corporation Tax Return” Notice:
This notice is a Level 1 Compliance Intervention in accordance with Revenue’s Compliance Intervention Framework. The non-filing of a required tax return can result in a more detailed review by Revenue. It is also an offence for which a person can be prosecuted. It can also result in the restriction of certain reliefs, and the loss or refusal of tax clearance. Further information on your rights and obligations under Revenue’s Compliance Intervention Framework can be found on www.revenue.ie.
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.

Income Tax. Corporation Tax. Capital Acquisitions Tax. Capital Gains Tax. Local Property Tax. VAT. Pay and File Deadlines.
January is a very important month in terms of pay and file obligations. To avoid exposure to interest and penalties, please find below a list of pay and file deadline dates for January 2025 under the following tax heads: Income Tax, Corporation Tax, VAT, Local Property Tax, Capital Gains Tax, Capital Acquisitions Tax, Dividend Withholding Tax and Professional Services Withholding Tax.
Latest date for paying Local Property Tax in full through an approved PSP, or by debit or credit card.
Monthly direct debit payments for Local Property Tax (LPT) start and continue on the 15th day of every month, thereafter. Date extended to 21st March 2025 if paying by Annual Debit Instruction.
Return of Trading Detail:
https://www.revenue.ie/en/vat/vat-registration/who-should-register-for-vat/vat-thresholds.aspx
https://www.revenue.ie/en/vat/vat-ecommerce/import-oss/index.aspx
https://www.revenue.ie/en/personal-tax-credits-reliefs-and-exemptions/tax-relief-charts/index.aspx
https://www.revenue.ie/en/property/local-property-tax/paying-your-lpt/index.aspx
Please be aware that the information contained in this article is of a general nature. It is not intended to address specific circumstances in relation to any individual or entity. All reasonable efforts have been made by Accounts Advice Centre to provide accurate and up-to-date information, however, there can be no guarantee that such information is accurate on the date it is received or that it will continue to remain so. This information should not be acted upon without full and comprehensive, specialist professional tax advice.