Reviewed by: MyTaxRebate Team on 10 Mar 2026 | Authority: s.472B TCA 1997
Quick Answer
The Fisher Tax Credit, provided under s.472B TCA 1997, is available to individuals who work on sea-going Naval Service vessels or qualifying fishing vessels for a minimum number of days per year. The credit is worth up to €1,270 per year (€20 per qualifying sea-going day up to a maximum). Under s.865 TCA 1997, this credit can be claimed retrospectively for up to four years - in 2025, that means 2022, 2023, 2024, and 2025. Many eligible workers are unaware of this credit and have never claimed it. MyTaxRebate reviews sea-going and fishing employment history and submits the claim as part of a comprehensive four-year review.
What This Page Covers
- ✓Who qualifies for the Fisher Tax Credit under s.472B TCA 1997
- ✓How the credit is calculated (up to €1,270 per year)
- ✓What a qualifying sea-going day means for Revenue purposes
- ✓How to claim retroactively for up to four years
- ✓What documentation Revenue requires for a Fisher Tax Credit claim
Key Facts at a Glance
- ✓Legal basis: s.472B TCA 1997 (Fisher Tax Credit) and s.865 TCA 1997 (four-year backdating)
- ✓Credit value: €20 per qualifying sea-going day, up to €1,270 per year (80+ days)
- ✓Eligible workers: Naval Service personnel on sea-going vessels and qualifying commercial fishing crew
- ✓Minimum days: worker must spend qualifying days at sea within the tax year
- ✓Available years in 2025: 2022, 2023, 2024, and 2025 - up to €5,080 over four years
- ✓Documentation: sea-going day records, employer/vessel confirmation
- ✓Backdate up to four years - in 2025, claim for 2022, 2023, 2024, and 2025
What Is the Fisher Tax Credit?
The Fisher Tax Credit (also referred to as the Sea-Going Naval Personnel and Fisher Tax Credit) is provided under s.472B TCA 1997 and was introduced to recognise the exceptional and demanding nature of work at sea. The credit is calculated at €20 per qualifying sea-going day, up to a maximum of €1,270 per tax year (63.5 qualifying days to reach the maximum). For workers who spend more than 63 days at sea in a year, the credit is capped at €1,270. Revenue also provides that the credit must be claimed by the individual - it is not applied automatically by the employer.
Who Qualifies?
Qualifying workers under s.472B TCA 1997 include:
- Naval Service personnel: Members of the Irish Naval Service who serve on sea-going patrol vessels. The vessel must be at sea (not in port) for the day to count as a qualifying sea-going day.
- Commercial fishing crew: Workers employed on qualifying commercial fishing vessels. The vessel must be used commercially for sea fishing (not leisure or recreational purposes).
Check Your Claim
MyTaxRebate can review your position and guide the next step.
What Qualifies as Sea-Going Service
For the Fisher Tax Credit to apply, the seafarer must be employed as a crew member on a qualifying sea-going vessel and must spend at least 80 days in the relevant tax year on such service. Days at sea are counted as days on which the vessel is at sea and the seafarer is serving as a crew member. Short-haul coastal work, inland waterway work, and vessel operation within Irish territorial waters for limited periods may qualify depending on the specific nature of the service and the vessel type. Revenue's guidance on what constitutes qualifying sea-going service is published in the Tax and Duty Manual and is specific to each crew role and vessel type.
How the Fisher Tax Credit Combines With Other Reliefs
The Fisher Tax Credit (€1,270 per year) is a dedicated credit that applies in addition to the standard Personal Tax Credit and Employee Tax Credit. Qualifying seafarers also retain eligibility for all applicable expense reliefs - medical expenses under s.469 TCA 1997, flat-rate maritime expense allowances where applicable, and any additional credits (Age Tax Credit, Single Person Child Carer Credit) that apply to their personal circumstances. The Fisher Tax Credit stacks on top of all other entitlements to produce the total refund. MyTaxRebate reviews the complete position for qualifying seafarers, including all stacked entitlements across four years.
Claiming for Prior Years Where the 80-Day Threshold Was Met
Under s.865 TCA 1997, the Fisher Tax Credit can be claimed retroactively for any year within the four-year window where the qualifying conditions were met. Where a seafarer met the 80-day sea-going threshold in 2022, 2023, or 2024 and never applied for the credit, the full €1,270 per year is claimable retroactively. Revenue will require confirmation of qualifying days at sea for each year claimed. Employers and vessel operators typically maintain logbooks or service records that can be used as supporting documentation. MyTaxRebate assists with the documentation requirements for retroactive Fisher Tax Credit claims.
The sea-going credits available in Ireland - covering both naval service personnel and commercial fishers - reflect a broader principle within the Irish tax system that recognises the particular demands and risks associated with certain occupations. Workers in these roles face physically demanding conditions, extended periods away from home, and occupational hazards that are not present in land-based employment. The credits provide additional financial recognition of these factors on top of the standard personal and employee tax credits available to all PAYE workers.
To ensure your entitlement to a sea-going or fisher tax credit is correctly reflected in your annual tax position, it is important to review your your Revenue record profile each year and confirm the credit is registered. Employers in the naval service and fishing industry may have processes in place to assist their employees with this, but the responsibility for ensuring the correct credits are applied ultimately rests with the individual taxpayer. Under section 865 TCA 1997, if you did not claim this credit in prior years, you can add it retrospectively for up to four years through your Revenue record and receive the corresponding refund of overpaid tax.
The sea-going credits available in Ireland - covering both naval service personnel and commercial fishers - reflect a broader principle within the Irish tax system that recognises the particular demands and risks associated with certain occupations. Workers in these roles face physically demanding conditions, extended periods away from home, and occupational hazards that are not present in land-based employment. The credits provide additional financial recognition of these factors on top of the standard personal and employee tax credits available to all PAYE workers.
To ensure your entitlement to a sea-going or fisher tax credit is correctly reflected in your annual tax position, it is important to review your your Revenue record profile each year and confirm the credit is registered. Employers in the naval service and fishing industry may have processes in place to assist their employees with this, but the responsibility for ensuring the correct credits are applied ultimately rests with the individual taxpayer. Under section 865 TCA 1997, if you did not claim this credit in prior years, you can add it retrospectively for up to four years through your Revenue record and receive the corresponding refund of overpaid tax.
Check Your Claim
MyTaxRebate can review your position and guide the next step.
Tax Scenarios
Scenario 1: Naval Service Officer
A Naval Service petty officer spent 95 qualifying sea-going days at sea in 2022, 110 days in 2023, 88 days in 2024, and 102 days in 2025. For each year, the credit is capped at €1,270 (the maximum). He had never claimed the Fisher Tax Credit. MyTaxRebate reviewed his service records, confirmed the sea-going day counts with the Naval Service records, and submitted for all four years. Total Fisher Tax Credit recovered: €5,080.
Scenario 2: Commercial Fisher
A commercial fishing crew member worked on a qualifying vessel and spent 72 qualifying sea-going days at sea in 2023 and 58 days in 2024. At €20 per day: €1,440 credit for 2023 (capped at €1,270) and €1,160 for 2024. Combined with medical expenses and the general PAYE credit review, MyTaxRebate recovered a total of €2,730 across four years, of which €2,430 was from the Fisher Tax Credit alone.
Scenario 3: Mixed Sea-Going and Shore Work
A Naval Service member worked partly at sea and partly on shore assignments. In 2022 and 2023, her sea-going days were 35 and 28 respectively (below the maximum). In 2024, she was assigned to sea duties for 80 days. Credit: 2022 = €700, 2023 = €560, 2024 = €1,270. Total Fisher Tax Credit from three years: €2,530. Combined with medical and flat-rate relief, her total four-year refund was €3,140.
Common Mistakes To Avoid
- ✗Not claiming because the credit seems too small to bother with: At €1,270 per year over four years, the unclaimed credit totals €5,080. This is a substantial amount that is permanently lost if not claimed within the four-year window.
- ✗Not counting all qualifying sea-going days accurately: Only days when the vessel was at sea count. Days in port do not qualify. Ensure the vessel log or Naval Service records accurately reflects the number of qualifying sea-going days.
- ✗Assuming the employer claims this on your behalf: The Fisher Tax Credit must be claimed by the individual (or their agent). Employers do not apply it automatically through the PAYE system.
- ✗Missing the four-year deadline: Under s.865 TCA 1997, the deadline for 2022 sea-going days closes on 31 December 2026. Act before this date to ensure 2022 credits are claimed.
- ✗Not checking whether other reliefs also apply: Sea-going workers are also entitled to medical expense relief, flat-rate employment allowances (if their vessel role qualifies), and standard PAYE credits. The Fisher Tax Credit is additional to, not instead of, these reliefs.
When This Does Not Apply
Key Takeaways
- ➤ Confirm your qualifying sea-going days for each of the four available years (2022 - 2025)
- ➤ Obtain a letter from your employer, naval records office, or vessel log confirming sea-going day counts
- ➤ Check whether other reliefs (medical, flat-rate) also apply to your situation
- ➤ Act before 31 December 2026 if you have unclaimed 2022 credits - the deadline is closing
- ➤ Submit through MyTaxRebate - we review sea-going employment and combine the Fisher Credit with all other entitlements
Check Your Claim
MyTaxRebate can review your position and guide the next step.
Frequently Asked Questions
What is the Fisher Tax Credit in Ireland?
The Fisher Tax Credit is a tax credit of €20 per qualifying sea-going day, up to a maximum of €1,270 per year, provided under s.472B TCA 1997. It is available to Irish Naval Service personnel serving on sea-going vessels and to commercial fishing crew on qualifying fishing vessels. The credit reduces your income tax liability directly. It must be actively claimed - it is not applied automatically by your employer or the PAYE system. Under s.865 TCA 1997, it can be claimed retroactively for up to four years.
Who qualifies for the Fisher Tax Credit in Ireland?
The fisher tax credit is available to individuals employed or self-employed in sea fishing who spend a qualifying number of days at sea during the tax year engaged in commercial fishing activities. The vessel must be registered and operating commercially. You must keep records of sea-going days to support a claim. MyTaxRebate reviews your eligibility, verifies your qualifying days, and submits the credit claim directly to Revenue on your behalf. The four-year rule under section 865 TCA 1997 allows retrospective claims.
How much is the Fisher Tax Credit worth?
The Fisher Tax Credit is worth €20 per qualifying sea-going day, capped at €1,270 per year in 2025. To receive the maximum credit, a worker must spend at least 63.5 qualifying days at sea during the tax year. Workers with fewer sea-going days receive €20 per day for the actual number of qualifying days. Across four years of maximum claims, the total potential credit is €5,080.
How do I claim the Fisher Tax Credit for previous years?
Under s.865 TCA 1997, you can claim the Fisher Tax Credit retroactively for up to four years. In 2025, the available years are 2022, 2023, 2024, and 2025. Complete MyTaxRebate's application and provide documentation confirming your qualifying sea-going days for each year - typically a letter from your employer, Naval Service records, or vessel log entries. We calculate the credit for each year and submit a comprehensive claim to Revenue on your behalf.
Can I claim other reliefs in addition to the Fisher Tax Credit?
Yes. The Fisher Tax Credit is additional to all other tax credits and reliefs available to PAYE workers. Sea-going workers can simultaneously claim the Fisher Tax Credit, medical expense relief, flat-rate employment expense allowances (if their role qualifies), remote working relief (if applicable), and standard PAYE credits (Personal and Employee Tax Credits). MyTaxRebate reviews all these categories as part of every comprehensive four-year review.
