Revenue-compliant guidance — Based on Revenue Tax and Duty Manual Part 15-01-12 (s.469 TCA 1997). Updated for 2025.
People diagnosed with coeliac disease can claim 20% income tax relief on the additional cost of purchasing gluten-free food products in Ireland. This is available under the medical appliances and prescribed foods provision of Revenue's health expenses scheme. A doctor's letter confirming the coeliac diagnosis is required as supporting documentation.
Key Facts at a Glance
- ✓Coeliac patients can claim 20% relief on qualifying gluten-free food costs with a GP confirmation letter.
- ✓Claim the additional cost of gluten-free products compared to equivalent standard products.
- ✓Retain supermarket receipts identifying qualifying gluten-free items.
- ✓The doctor's letter confirming diagnosis is retained — not submitted with the claim.
- ✓Backdate up to four years.
How coeliac disease qualifies for tax relief
Coeliac disease is a condition in which the immune system attacks the body's own tissues when gluten is consumed. The only medical treatment is a strict lifelong gluten-free diet. Revenue recognises the additional cost of purchasing gluten-free food products as a qualifying health expense for diagnosed coeliac patients, under the provision for prescribed foods.
To claim, you must have a confirmed diagnosis from a GP or specialist, evidenced by a letter from the diagnosing doctor. You must retain supermarket and shop receipts showing the gluten-free products purchased. The claim is entered as a health expense in myAccount.
What costs qualify
The qualifying amount is the additional cost you incur specifically because of coeliac disease — broadly, the extra cost of gluten-free versions of products compared to the equivalent standard product. Specifically qualifying items include:
- Gluten-free bread, rolls, and crackers.
- Gluten-free pasta and cereals.
- Gluten-free flour and baking mixes.
- Other specifically labelled gluten-free staples required as medical necessity.
Standard fresh foods that are naturally gluten-free (meat, fish, fresh vegetables, dairy) are not specifically gluten-free purchases — the relief targets the additional cost of specialist gluten-free substitute products.
The doctor's letter requirement
Revenue requires a letter from your GP or specialist confirming your coeliac diagnosis as supporting documentation. You retain this letter for six years — you do not submit it with your claim but must be able to produce it if Revenue requests it during a compliance check. If you have not previously obtained a formal letter, ask your GP to write one confirming your coeliac diagnosis.
Practical approach to tracking and claiming
Many coeliac patients shop at specific retailers or health food shops with a regular basket of gluten-free products. The most practical approach is to:
- Keep receipts from supermarkets and health stores identifying the gluten-free products purchased.
- Maintain a running annual total of qualifying gluten-free product costs.
- At year end, enter the total qualifying amount in myAccount under Health Expenses.
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Check My Entitlement →Scenarios
Scenario: Coeliac patient claiming annual gluten-free food costs
A person with a confirmed coeliac diagnosis (GP letter held) purchases qualifying gluten-free bread, pasta, and cereal at an average additional cost of €180 per month compared to standard equivalent products — approximately €2,160 per year. At 20% relief: €432 refunded annually. Over four backdated years: €1,728 total refund from qualifying gluten-free food expenses.
Common Mistakes to Avoid
- ✗Claiming all food shopping receipts rather than only the specifically gluten-free items.
- ✗Not obtaining the GP confirmation letter before claiming.
- ✗Claiming fresh foods that are naturally gluten-free — these are not qualifying specialist gluten-free products.
When This Relief Does Not Apply
Key Takeaways
- ➤Coeliac patients can claim 20% on qualifying gluten-free food products with a GP confirmation letter.
- ➤Only the specialist gluten-free product costs qualify — not all food shopping.
- ➤Retain supermarket receipts identifying gluten-free products throughout the year.
Frequently Asked Questions
Can coeliac patients claim tax relief on gluten-free food in Ireland?
Yes. Revenue allows 20% income tax relief on qualifying gluten-free food costs for diagnosed coeliac patients, with a GP confirmation letter and receipts for the gluten-free products purchased.
What documentation is required?
A letter from your GP or specialist confirming your coeliac diagnosis, and supermarket/shop receipts identifying the gluten-free products purchased.
Do I submit the doctor's letter with my claim?
No. Retain it for six years in case Revenue requests it. You do not submit it with a year-end Review your Tax claim.
What gluten-free foods qualify?
Specifically labelled gluten-free bread, pasta, cereals, crackers, and flour qualifies. Naturally gluten-free whole foods do not.
Can I claim for several years of gluten-free food costs?
Yes. Backdate up to four years. In 2026, you can claim for qualifying costs from 2022, 2023, 2024, and 2025.
Can a family member with coeliac disease qualify?
Yes. If you paid for a diagnosed family member's gluten-free food costs, include those costs in your own health expenses claim.