A fixed-term tenancy locks you into a set end date, usually 6 or 12 months, and breaking it early can cost you your deposit plus the remaining rent. A periodic tenancy has no end date and either side can leave with notice. Both give you the same legal protections after 6 months. The real difference is what happens if your plans change.
The two types, side by side
| Fixed-term tenancy | Periodic tenancy | |
|---|---|---|
| Length | Set period stated in the lease (e.g. 12 months) | No end date, rolls on weekly or monthly |
| Usually in writing? | Yes, almost always | Can be verbal or written |
| Can you leave early? | Only with a break clause, mutual agreement, or landlord breach | Yes, any time, with correct notice |
| Cost of leaving without a valid reason | Lose your deposit and may owe rent for the rest of the term | None beyond your notice period |
| Can the landlord end it early? | No, unless you breach your obligations | Yes, in the first 6 months without giving a reason (with correct notice) |
| Security of tenure | Starts after 6 months, same as periodic | Starts after 6 months, same as fixed-term |
This table already tells you the honest answer: fixed-term and periodic tenancies converge on almost everything that matters long-term. Where they genuinely diverge is flexibility to exit, and that’s the choice you’re actually making. Citizens Information sets out the definitions of both tenancy types clearly, but doesn’t put a number on what leaving early actually costs you, which is the section below.
Why “which tenancy regime am I in” matters more than fixed vs periodic
Here’s what most guides on this topic miss, including a lot of older content still online: Irish law has changed the rules on how long a tenancy protects you from eviction three times since 2016, and which version applies to you depends entirely on your start date, not on whether your tenancy is fixed-term or periodic.
- Tenancy started 25 December 2016 to 10 June 2022: you’re in a Part 4 tenancy. Security of tenure runs in 6-year cycles, and at the end of a cycle your landlord can end the tenancy for any reason, provided they serve notice correctly.
- Tenancy started 11 June 2022 to 28 February 2026: you have a tenancy of unlimited duration. After 6 months, your landlord can only end it for specific reasons (arrears, sale, own use, refurbishment, change of use). It never reverts to a “no reason needed” cycle.
- Tenancy started on or after 1 March 2026: you’re under the newest system, a tenancy of minimum duration (TMD), introduced by the Residential Tenancies (Miscellaneous Provisions) Act 2026. Security of tenure runs in 6-year cycles again, but the grounds for ending it depend on whether your landlord is “larger” (a company, or anyone with 4 or more tenancies) or “smaller” (3 or fewer tenancies).
All three regimes are explained on Citizens Information’s tenants’ rights to stay page, but as three separate sections you have to piece together yourself. If you’re signing a new lease today, you’re in the TMD system. If you’ve been renting since before March 2026, check your actual start date before assuming which rules apply, because a lot of online advice still describes the old 4-year Part 4 rule, which stopped applying to new tenancies back in December 2016.
Common mistake: assuming “Part 4 tenancy” and “security of tenure” are one fixed rule. They’re not. The name, the cycle length, and the landlord’s exit grounds have all changed since 2016. What you signed and when you signed it decides which version you’re under.
The three things that actually decide fixed-term vs periodic
1. How much certainty do you need against a landlord ending things early?
A fixed-term lease is the stronger protection here. Your landlord cannot end it before the term is up unless you breach your obligations, such as falling into rent arrears. A periodic tenancy can be ended by your landlord at any point in the first 6 months, without giving a reason, as long as they give the correct notice.
2. How likely are you to need to leave early?
This is where fixed-term tenancies get expensive. If you sign a 12-month lease and need to move for a job, a family situation, or a relationship breakdown, you don’t just give notice, you’re still bound by the lease unless one of a short list of exceptions applies (see below).
3. Do you want the flexibility to move on short notice once you’ve settled in?
A periodic tenancy lets you leave whenever you want, provided you give the required notice period. No penalty, no explanation needed.
4. How much does the landlord’s flexibility matter to you as a tenant?
Counterintuitively, a fixed-term lease can protect you from being asked to leave in year one for something like the landlord “needing the property back”, since none of those grounds override the fixed term. A periodic tenancy in the first 6 months has fewer protections against a no-reason termination.
What breaking a fixed-term lease actually costs
This is the number Citizens Information doesn’t calculate for you. Say you sign a 12-month fixed-term lease at €1,800 a month and need to leave after 4 months, with no break clause and no landlord breach.
Under the rules, you can:
- Lose your deposit (commonly one month’s rent, so €1,800)
- Remain liable for rent on the remaining 8 months of the lease, even if the landlord has re-let the property to someone else, unless you agree an earlier exit with your landlord
That’s a potential exposure running into thousands of euro before the landlord even tries to mitigate by re-letting quickly. Citizens Information confirms both the deposit and continuing-rent liability rules for breaking a fixed term, but doesn’t run the maths, so a lot of tenants underestimate what “the penalties can be considerable” actually means until they’re facing the bill.
Compare that to a periodic tenancy after 8 months: you owe 35 days’ notice and nothing else. No deposit forfeiture just for leaving, no ongoing rent liability once your notice period ends (though normal deductions for damage still apply).
The exceptions that let you break a fixed term without the penalty
You can end a fixed-term tenancy early, without losing your deposit or owing remaining rent, if:
- Your lease has a break clause and you meet its conditions
- You and the landlord both agree to end it early
- The landlord has broken their obligations (for example, not maintaining the property) and hasn’t fixed the issue within a reasonable time, in which case you only need to give 28 days’ notice
- The landlord’s failure creates imminent danger to you or to the structure of the property, in which case you only need 7 days’ notice
- A private landlord has refused to allow assignment or subletting, which lets you end the tenancy under Section 186 of the Residential Tenancies Act 2004
Notice periods: what each side actually owes
If you’re on a periodic tenancy, or once your fixed term becomes a rolling tenancy after security of tenure kicks in, these are the notice periods that apply.
Notice you must give your landlord (tenant ending the tenancy):
| Length of tenancy | Notice required |
|---|---|
| Less than 6 months | 28 days |
| 6 months to 1 year | 35 days |
| 1 to 2 years | 42 days |
| 2 to 4 years | 56 days |
| 4 to 8 years | 84 days |
| 8 years or more | 112 days |
Notice your landlord must give you (landlord ending the tenancy):
| Length of tenancy | Notice required |
|---|---|
| Less than 6 months | 90 days |
| 6 months to 1 year | 152 days |
| 1 to 7 years | 180 days |
| 7 to 8 years | 196 days |
| More than 8 years | 224 days |
These landlord notice periods have applied since 6 July 2022 and are unchanged by the 2026 reforms, per Citizens Information’s page on landlords ending a tenancy. Notice how lopsided this is: your landlord owes you three to four times the notice you owe them once you’ve been there over a year. That asymmetry exists regardless of whether your tenancy started as fixed-term or periodic, because it kicks in once you have security of tenure.
Pro tip: if you’re on a fixed-term lease approaching its expiry and you want to stay, notify your landlord between one and three months before the term ends. You keep your right to security of tenure either way, but skipping this step can leave you liable to compensate the landlord for any loss caused by not telling them your plans.
What to do when it goes wrong
Your landlord tries to end a fixed-term tenancy early without a valid reason. They can’t, unless you’ve breached your obligations. Check the notice against the valid grounds list, and if it doesn’t fit, you can dispute the notice of termination with the RTB.
You’ve been served a notice of termination and think the notice period is wrong. Every notice of termination must state that you can refer a validity dispute to the RTB, generally within 90 days of getting it (28 days for arrears cases). Missing details, a wrong date, or a short notice period can all make a notice invalid, though the RTB can overlook minor, non-prejudicial errors under the “slip rule.”
You need to leave a fixed-term lease early and none of the exceptions apply. Talk to your landlord first. Landlords often prefer a negotiated early exit and a quick re-let over chasing rent from someone who’s already gone. Get anything agreed in writing.
Your landlord didn’t send a copy of the notice to the RTB. This makes the notice invalid outright. From 14 September 2026, landlords have 7 days from when you receive the notice to copy the RTB, a change from the same-day rule that applied before. If you’re served notice around that date, check which rule was in force when it was sent.
You can’t find anywhere else to live before your notice period ends. Contact Threshold or Focus Ireland. They can check whether your notice is valid and advise on next steps before you’re actually without a home.
Which one should you actually choose?
If you value certainty over flexibility, and you’re not likely to move within the term: take the fixed-term lease. It protects you from a no-reason termination in year one, which matters most if you’re new to an area and don’t want to be searching again in month four.
If your plans are genuinely uncertain, for work, visa status, or family reasons: a periodic tenancy, or a short fixed term with a break clause, protects you from the deposit-and-remaining-rent exposure above. Ask specifically for a break clause if the landlord only offers fixed terms.
If you’re a landlord’s chosen tenant and they only offer periodic: you’re not losing meaningful protection. Security of tenure and notice periods apply identically once you pass 6 months. The only real gap is the first 6 months, where a periodic tenancy is easier for a landlord to end without cause.
FAQ
Is it better to have a fixed-term or periodic tenancy in Ireland?
Neither is better in every case. A fixed-term tenancy protects you from a no-reason termination during the term, but breaking it early can cost your deposit plus remaining rent. A periodic tenancy lets you leave any time with notice, but gives your landlord the same freedom during the first 6 months.
Can a landlord end a fixed-term tenancy early in Ireland?
No, not without a valid reason such as you breaching your tenancy obligations. If your landlord tries to end a fixed-term lease early without cause, you can dispute the notice of termination with the RTB.
Does a periodic tenancy automatically renew?
Yes, in the sense that it has no end date to renew. It simply continues on a weekly or monthly cycle, matching however often rent is paid, until either side ends it with valid notice.
What happens if I break my fixed-term lease early in Ireland?
Unless a break clause, mutual agreement, or landlord breach applies, you can lose your deposit and remain liable for rent for the rest of the fixed term, even if the landlord finds a new tenant. Always check for an exception before assuming you’re stuck with the full bill.
Can I switch from a fixed-term tenancy to a periodic one?
Yes. Once your fixed term expires and neither side has ended the tenancy or signed a new fixed-term agreement, it typically continues as a periodic (rolling) tenancy, with the same security of tenure rights carried over.
Next steps
- Check your tenancy start date against the three regimes above so you know whether Part 4, unlimited duration, or TMD rules apply to you.
- Read your lease for a break clause before you sign, not after you need one.
- If you’re already signed up and want out early, check the exceptions list before assuming you’ll lose your deposit.
- If you haven’t started renting yet, our step-by-step guide to renting a house in Ireland covers what to check before you sign anything.
- Confirm your tenancy is actually registered using our guide on how to check if your tenancy is registered with the RTB.
Looking further ahead? If renting is a stepping stone, our guides on how much deposit you need to buy in Ireland and the mortgage approval process pick up where this one leaves off. And if you’re weighing up cheaper areas before you commit to a lease at all, see our guide to the cheapest counties to rent in Ireland. Setting up your finances alongside your tenancy? Our guide to opening a bank account in Ireland and comparison of the best banks in Ireland are worth reading together. If you’re renting while your immigration status settles, our guide to Stamp 4 in Ireland explains the next step once you’re established, and our explainer on how PAYE works is useful once you’re paying rent from an Irish payslip.
