When most people think about Capital Gains Tax (CGT) in Ireland, they focus on how much tax they’ll have to pay when they sell a property, investment, or business. But what many taxpayers overlook is that losses can be just as important as gains.

Under Irish tax law, Capital Gains Tax Loss Relief allows you to use capital losses to reduce or eliminate CGT on your profits. And with CGT charged at 33%, using your losses effectively can make a massive difference to your tax bill.

At Irish Tax Hub, we help individuals, landlords, investors, and business owners navigate the complexities of CGT. Whether you’re selling property, shares, or cryptocurrency, our goal is simple: make sure you don’t pay a cent more than you need to.

This comprehensive guide will explain everything you need to know about CGT Loss Relief in Ireland, including:

• What CGT Loss Relief is and why it matters
• Types of losses that qualify in Ireland
• Rules for offsetting and carrying forward losses
• Step-by-step: how to claim CGT Loss Relief from Revenue
• Worked examples showing the tax savings
• Special considerations (crypto, connected parties, non-residents)
• Common mistakes taxpayers make
• How Irish Tax Hub can help you maximise your reliefs

What is CGT Loss Relief in Ireland?

CGT Loss Relief allows you to offset capital losses against capital gains to reduce your tax bill.

• Capital Gain = when you sell an asset for more than you paid for it.
• Capital Loss = when you sell an asset for less than you paid for it.

In Ireland, losses on the disposal of chargeable assets can be deducted from gains on other chargeable assets. If your losses exceed your gains in a given tax year, the unused balance can be carried forward indefinitely.

💡 Key point: Losses can’t be set against income tax (like salary or rental income). They can only reduce CGT.

Use our CGT calculator to see if you made a capital loss or gain on the sale of an asset.

Why CGT Loss Relief Matters

The standard Irish CGT rate is 33%. Every €1,000 of loss can save you €330 in tax - either this year or in future years.

For investors, landlords, and business owners, crystallising losses at the right time can make a big difference. For example:

• Selling losing shares in the same year as selling a profitable property can reduce your overall CGT bill.
• Reporting losses now, even if you have no gains this year, locks in relief that can be used later.
• For crypto traders, logging losses correctly ensures they can offset against future bull-market gains.

What Assets Can Create a Capital Loss?

You can only claim CGT Loss Relief on chargeable assets. Common examples include:

• Shares and securities (including those traded on foreign exchanges)
• Investment property (second homes, rental properties, land, sites)
• Cryptocurrency (Bitcoin, Ethereum, etc.)
• Business assets (goodwill, machinery, etc.)

Assets that typically do not qualify:

• Personal-use items (cars, household goods, clothes)
• Assets gifted or sold at undervalue to connected parties (restrictions apply)
• Losses not properly recorded or evidenced

Rules for Offsetting Losses

Here’s how the rules work in Ireland:

1. Same Year First – Losses must first be offset against gains made in the same tax year.
2. Carry Forward Indefinitely – Unused losses can be carried forward until fully used.
3. No Carry Back – Losses cannot normally be used against gains from earlier years.
4. Must Be Reported – To carry forward a loss, you must report it to Revenue (even if you have no gains in that year).

Worked Examples

Example 1 – Offsetting in the Same Year

• Property gain: €120,000
• Share loss: €40,000
• Net taxable gain = €80,000
• CGT = €80,000 × 33% = €26,400 instead of €39,600
  👉 Tax saving: €13,200

Example 2 – Carry Forward

• 2023: You sold shares at a €25,000 loss. No gains that year.
• 2024: You sold land with a €100,000 gain.
• Carry forward the €25,000 loss.
• Net gain = €75,000
• CGT = €24,750 instead of €33,000
  👉 Tax saving: €8,250

Example 3 – Crystallising Crypto Losses

• You bought Bitcoin for €40,000, sold for €20,000.
• Loss = €20,000.
• Offset against gains from selling rental property.
  👉 Saves €6,600 in CGT.

Special Considerations

1. Crypto Assets

• Gains and losses on crypto disposals are taxable.
• Must be properly documented (exchange statements, transaction IDs).
• Losses from “lost wallets” or scams may not qualify.

2. Connected Parties

• Losses on sales to connected parties (e.g. spouse, child, company you control) are not allowable.

3. Non-Residents

• Non-residents only pay Irish CGT on Irish property and land.
• Losses are generally only available against Irish gains.

4. Timing

• CGT payments in Ireland are due twice a year:
• 15 December (for disposals Jan–Nov)
• 31 January (for disposals in December)
• Timing disposals strategically can help reduce or defer tax.

Common Mistakes People Make

At Irish Tax Hub, we regularly correct errors that cost taxpayers thousands:

• Not reporting losses to Revenue (and losing the ability to carry forward).
• Misunderstanding allowable assets (e.g. personal-use assets don’t qualify).
• Incorrect calculations (forgetting incidental costs like stamp duty and solicitor fees).
• Selling to relatives and assuming the loss qualifies (it doesn’t).

How to Claim CGT Loss Relief

1. Calculate your gain/loss on each disposal:
2. Sale price minus purchase price minus allowable costs.
3. Offset losses against gains in the same year.
4. Report unused losses on your CGT return so they can be carried forward.
5. File your CGT return by the deadline (Form CG1 or as part of your Form 11 if self-assessed).
6. Maintain documentation (contracts, broker statements, receipts).

👉 At Irish Tax Hub, we handle every step of this process for you, ensuring nothing is missed.

How Irish Tax Hub Can Help You

Navigating CGT Loss Relief may seem straightforward, but when combined with multiple disposals, foreign assets, and Revenue’s strict reporting rules, it becomes complex. That’s where we come in.

At Irish Tax Hub, we provide:

• ✅ Expert CGT calculations – ensuring all gains and losses are correct.
• ✅ Strategic tax planning – advising when to crystallise losses to maximise relief.
• ✅ Carry-forward tracking – so you don’t miss future opportunities.
• ✅ Professional Revenue filings – stress-free compliance.
• ✅ Ongoing support – handling Revenue queries after submission.

Our clients regularly save five-figure sums simply by using losses effectively.

FAQs on CGT Loss Relief

Q: Do I need to file a CGT return if I only made losses?
Yes. You must report the loss to Revenue in order to carry it forward.

Q: Can I offset losses against my PAYE income or rental income?
No. Losses can only be used against capital gains.

Q: How long can I carry forward a capital loss?
Indefinitely - until fully used.

Q: Can crypto losses be claimed?
Yes, if properly documented and the disposal is genuine.

Q: Can I transfer losses to my spouse?
No. Losses are personal and cannot be transferred, though spousal transfers of assets themselves can be tax-efficient.

Final Thoughts – Don’t Waste Your Capital Losses

CGT Loss Relief in Ireland is one of the most powerful and underused tax-saving tools. Whether you’re an investor, landlord, or business owner, failing to report and track your losses could mean handing thousands of euro unnecessarily to Revenue.

At Irish Tax Hub, our tax experts make sure you:

• Correctly calculate and report your losses
• Strategically offset gains for maximum savings
• Stay fully compliant with Revenue rules

👉 Sign up for out CGT review service today. Irish Tax Hub - the trusted experts in Irish tax reliefs, CGT, and compliance.