Reviewed by: MyTaxRebate Team on 10 Mar 2026 | Authority: s.469 TCA 1997
Quick Answer
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.
If you have a coeliac diagnosis and have been purchasing gluten-free products without claiming, MyTaxRebate reviews your qualifying costs across all open years and submits the full backdated claim - at no upfront cost.
What This Page Covers
- ✓How coeliac disease qualifies under s.10.1 of Revenue's guidance
- ✓The GP letter requirement: what it must say and how to obtain it
- ✓Which gluten-free products qualify - and which do not
- ✓Practical record-keeping: supermarkets, online orders, health stores
- ✓Calculating the annual qualifying amount
- ✓Claiming for children with coeliac disease; backdating prior years
Key Facts at a Glance
- ✓Coeliac patients can claim 20% income tax relief on qualifying gluten-free food costs under s.469 TCA 1997.
- ✓A GP or specialist confirmation letter confirming the coeliac diagnosis must be retained - not submitted, just kept for six years.
- ✓Claim only the additional cost of specifically formulated and labelled gluten-free substitute products - not all food shopping.
- ✓Retain itemised supermarket or health store receipts identifying each gluten-free product purchased throughout the year.
- ✓Many supermarkets and pharmacies can provide annual purchase summaries on request, which Revenue accepts as supporting documentation.
- ✓Backdate up to four years - in 2025, qualifying gluten-free costs from 2022, 2023, 2024, and 2025 are all claimable.
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 your Revenue record.
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:
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.
- 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.
Check Your Claim
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The GP letter: what it must say and how to get one
The GP confirmation letter must confirm that you have been diagnosed with coeliac disease and that a gluten-free diet is medically required for your condition. It does not need to quantify the expected food expenditure or be addressed to Revenue. A letter that states the diagnosis and the dietary requirement is sufficient. The letter is retained by you indefinitely - it does not expire and does not need to be renewed annually. You produce it if Revenue requests it during a compliance review.
If you have not previously obtained a formal GP letter confirming your coeliac diagnosis, contact your GP surgery and ask for a letter for tax purposes confirming your coeliac disease diagnosis and the requirement for a gluten-free diet. Most GPs will provide this without difficulty, often at no charge or for a small administrative fee. If your diagnosis was made by a gastroenterologist or specialist rather than by your GP, the specialist's confirmation letter is equally acceptable.
Which gluten-free products qualify
The qualifying purchases are specialist gluten-free substitute products - the gluten-free versions of foods that would otherwise contain gluten. These include:
Naturally gluten-free whole foods - fresh meat, fish, vegetables, fruit, dairy, rice, and eggs - are not specialist gluten-free purchases. These are foods the general population eats. The qualifying relief targets the additional cost of the specialist substitutes, not the entire cost of feeding a coeliac household.
- Gluten-free bread, rolls, and wraps - the most significant regular purchase for most coeliac patients, as specialist GF bread costs three to five times more than standard bread.
- Gluten-free pasta and noodles.
- Gluten-free cereals, porridge, and muesli.
- Gluten-free flour, bread mixes, and baking ingredients.
- Gluten-free crackers, biscuits, and oatcakes.
- Gluten-free sauces, soups, and condiments where specifically labelled as gluten-free to address cross-contamination risk.
Calculating the annual qualifying amount
The most reliable approach to calculating the qualifying annual amount is to maintain a running total of specifically gluten-free product purchases throughout the year. Many coeliac patients shop at the same supermarkets weekly with a largely consistent basket of GF products. At year-end, total the GF-specific purchases from your receipts or loyalty card data and enter this as the qualifying amount.
Where receipts are incomplete, a reasonable estimate supported by whatever receipts you do have is better than not claiming at all. Revenue expects a good-faith estimate of qualifying purchases supported by available evidence. A typical adult coeliac who shops regularly for specialist GF products may spend €150 - €250 per month on qualifying items, representing an annual qualifying amount of €1,800 - €3,000 and a 20% refund of €360 - €600 per year.
Claiming for children with coeliac disease
Where a child has been diagnosed with coeliac disease, the parent or guardian who purchases the qualifying gluten-free products can claim those costs in their own health expenses return. The GP or paediatrician's letter confirming the child's coeliac diagnosis serves as the supporting documentation. The claim is entered in the parent's your Revenue record, combined with any other qualifying health expenses for the relevant year.
Check Your Claim
MyTaxRebate can review your position and guide the next step.
Tax Scenarios
Adult coeliac backdating four years of gluten-free food costs
A person diagnosed with coeliac disease in 2020 (GP letter held) has been purchasing specialist gluten-free bread, pasta, cereals, and flour for several years. They estimate the additional cost of these substitute products at approximately €155 per month compared to standard equivalents - around €1,860 per year. They request year-end purchase summaries from their supermarket loyalty scheme and specialist health food store. Using these summaries, they submit backdated claims for 2022, 2023, 2024, and 2025. At 20% per year on €1,860: €372 per year, €1,488 total refunded across the four-year claim.
Child with coeliac disease: parent claiming on their behalf
A child was diagnosed with coeliac disease at age five following a positive tissue transglutaminase antibody test and GP referral. The parent holds the diagnosis letter. Each month the parent spends approximately €130 on qualifying gluten-free substitute foods for the child: specialist bread, lunchbox items, pasta, and baking flour. Annual qualifying cost: €1,560. As the person who purchased and paid for the products, the parent claims the relief in their own health expense return. At 20%: €312 refunded per year. Over four backdated years: €1,248 total. The GP diagnosis letter covers all years without needing renewal.
Newly diagnosed in 2023 - organising records and backdating
A person received their coeliac diagnosis via biopsy in March 2023 and started purchasing gluten-free foods from that point. They kept till receipts for 2023 and 2024 but have no records for the first quarter of 2023. They contact their regular health food store, which provides a purchase history export for their loyalty account covering March to December 2023. Total qualifying costs: €1,020 in 2023 (9 months) and €1,680 in 2024. At 20%: €204 + €336 = €540 refunded across the two years. The GP letter from the diagnosis year covers both claim years and all future years.
Common Mistakes To Avoid
- ✗Claiming all food shopping receipts rather than only the specifically labelled gluten-free items - only products sold and marketed as specialist gluten-free substitutes qualify. General food shopping mixed into the claim will not be accepted if Revenue queries the submission.
- ✗Not obtaining a GP confirmation letter before claiming - the letter confirming coeliac diagnosis must be in place before the claim is submitted and retained for six years. Without it, Revenue can disallow the entire food expense claim.
- ✗Claiming fresh foods that are naturally gluten-free - fresh meat, fish, vegetables, and dairy are excluded from this relief because they are naturally gluten-free whole foods available to everyone, not specialist dietary substitutes required by the medical condition.
- ✗Not keeping itemised supermarket receipts or asking for year-end statements - the qualifying items must be identifiable on receipts. Many supermarkets and health food stores can provide annual purchase summaries showing all gluten-free product purchases.
- ✗Not claiming for a diagnosed family member whose gluten-free food costs you paid - if you purchase and pay for a coeliac family member's qualifying food products, you can include those costs in your own health expenses claim.
When This 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.
- ➤ ➤ MyTaxRebate reviews your coeliac diagnosis documentation and qualifying gluten-free purchase records, then submits the full backdated claim across all available years - at no upfront cost.
Check Your Claim
MyTaxRebate can review your position and guide the next step.
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 under s.469 TCA 1997. A GP or specialist confirmation letter confirming the coeliac diagnosis must be retained, together with itemised supermarket or health store receipts showing the specifically labelled gluten-free products purchased.
What documentation is required?
A letter from your GP or gastroenterologist confirming the coeliac diagnosis, and itemised supermarket or health food store receipts identifying the gluten-free products purchased. Many pharmacies and supermarkets can issue annual purchase summaries on request, which are acceptable as supporting documentation. Both the letter and receipts must be retained for six years.
Do I submit the doctor's letter with my claim?
No. For a year-end "review the tax position position position" claim, the GP letter and receipts are retained by you and are not uploaded or submitted to Revenue. They must be produced only if Revenue raises a compliance query. For a Real-Time Credit in-year claim, Revenue may request that the letter be uploaded to the Receipts Tracker - check Revenue's current guidance for in-year submission requirements.
What gluten-free foods qualify?
Specifically labelled gluten-free bread, pasta, cereals, crackers, biscuits, and flour qualify. These must be sold and marketed as gluten-free specialist products - the gluten-free label must be explicit on the packaging. Naturally gluten-free whole foods such as fresh meat, vegetables, and dairy do not qualify, as they are not specialist dietary substitutes required by the coeliac condition.
Can I claim for several years of gluten-free food costs?
Yes. Backdate up to four years. In 2025, you can claim for qualifying gluten-free food costs from 2022, 2023, 2024, and 2025. Request annual purchase statements from your supermarket or health food store for prior years if you did not keep itemised receipts. A single GP confirmation letter from the original diagnosis covers all prior years' claims.
Can a family member with coeliac disease qualify?
Yes. If you paid for a diagnosed family member's gluten-free food costs - such as a coeliac spouse or child - include those costs in your own health expenses claim under s.469 TCA 1997. Retain their GP confirmation letter separately alongside your own, together with the itemised receipts showing the qualifying products purchased for them.
