What must be in an Irish tenancy agreement in 2026

A landlord in Drumcondra signed a 12 month lease with a new tenant on 3 March 2026, took one month’s deposit, and filed the paperwork away. The lease was fine. It was the three documents he did not produce that cost him, because the rent he set became unenforceable the moment he failed to send a Notice of Rent Setting to the RTB.

That notice has been compulsory since 1 March 2026, and it is the single most missed document in Irish letting right now. It is not a form buried in the small print of an agreement. It is a separate notice, it has to reach the tenant and the RTB, and if the RTB copy never goes, the rent setting is invalid no matter how carefully the lease was written.

This guide sets out what actually has to be in an Irish tenancy agreement in 2026, the 4 documents a compliant new letting now needs, the mistakes that turn a valid agreement into an unenforceable one, and the fastest way to produce the whole set correctly.

Header photo: Dublin Georgian terraces by Leandro Neumann Ciuffo, CC BY 2.0, via Wikimedia Commons.

What changed on 1 March 2026

1 March 2026 is the most significant date in Irish residential letting since 2004. Three things changed at once, and an agreement drafted before that date is now wrong on all three.

Rent control went national. Rent Pressure Zones no longer describe the map, because every private tenancy in the State is now covered. Rent can rise once every 12 months by 2% or by inflation measured on the Consumer Price Index, whichever is lower. The exception is apartments where construction commenced after 10 June 2025, which follow inflation with no 2% ceiling. Our rent increase calculator works the figure out against the live CPI series.

Landlord size started to matter. A small landlord is a person, not a company, with 3 or fewer tenancies. A large landlord is a company, or anyone with 4 or more. For tenancies created from 1 March 2026, a large landlord can only ever end a tenancy on 2 grounds: the tenant breached their obligations, or the property no longer suits the tenant’s needs. Sale, family occupation, refurbishment and change of use are simply not available. A small landlord keeps those grounds, but only at defined points in the cycle.

Security of tenure was rebuilt. A small landlord’s tenancy now runs in rolling 6 year Tenancies of Minimum Duration. A large landlord’s tenancy becomes a tenancy of unlimited duration after 6 months. This is set out in more detail in our guide to Ireland’s 2026 rental rules and in Part 4 tenancies explained. The effect on landlords has been sharp: RTB data shows a record 7,062 Notices of Termination in Q1 2026, which we break down in what actually goes wrong for Irish landlords.

What must be in an Irish tenancy agreement

There is no single statutory list of clauses, which is exactly why so many agreements are defective. What the law does is impose obligations under sections 12 and 16 of the Residential Tenancies Act 2004 and leave you to write an agreement that does not contradict them.

In practice, a private residential tenancy agreement that will survive an RTB dispute records all of the following.

• The parties. Every landlord and every tenant by full legal name, plus an address for service of notices. If an agent acts for you, the agent is named and the landlord is still named.
• The dwelling. The full address, and what is included, such as parking, a garden, or a storage space.
• Start date and type of term. Fixed term or periodic, and the start date, because every notice period and the 6 month security of tenure point is measured from it.
• The rent. The amount, the frequency, the due date, and the method of payment.
• The deposit. The amount and the conditions for its return.
• Who pays what. Electricity, gas, heating, broadband, waste, management company charges and the television licence.
• The section 12 landlord obligations and the section 16 tenant obligations, reproduced rather than summarised.
• How notices are served, and the address or email each party accepts them at.
• Any additional terms, such as pets, smoking, subletting or a break clause, none of which may cut across the Act.
• Signatures and dates from every landlord and every tenant.

No solicitor, witness or stamp is required for the agreement to bind. What a solicitor adds is judgement on anything unusual, such as a licence rather than a tenancy, a room in your own home, or a mixed commercial element.

The 4 documents a compliant letting needs

This is where the market is furthest behind. Most landlords still think of the lease as the deliverable. Since 1 March 2026 the lease is one of 4 documents, and the other 3 carry the deadlines that actually generate sanctions.

1. The tenancy agreement. The contract itself, following the RTB template for private residential tenancies created on or after 1 March 2026.

2. The Notice of Rent Setting. Compulsory at the start of every new tenancy. It states the rent, how you arrived at it, and either the calculation behind a capped figure or 3 comparable dwellings drawn from the RTB Rent Register. It must go to the tenant and be uploaded to the RTB. If the RTB copy is not sent, the notice is invalid.

3. The inventory and condition report. Not compulsory, and the single best protection you have against a deposit dispute. The RTB recommends photographing the property before the tenancy begins and having both parties sign a list of contents and existing damage. Without it, an adjudicator has your word against theirs.

4. A dated compliance checklist. Registration within 30 days, the rent setting notice, minimum standards under the Housing (Standards for Rented Houses) Regulations 2019, the BER certificate, fire safety equipment, a rent book or statement, landlord insurance, and the date your first rent review becomes lawful. See our RTB registration guide for the registration half of that list.

Rent setting, the part most landlords get wrong

The question is not what you would like to charge. It is which of 2 routes you are on, and that is decided by how the previous tenancy ended.

Route 1, the capped route. If the last tenancy ended on a no-fault ground, such as a sale or your own family moving in, you cannot reset to market rent. The increase is capped at 2% or inflation, whichever is lower. You attach a printout of the RTB Rent Calculator and confirm against the RTB Rent Register that the figure is not above market rent.

Route 2, market rent. If the last tenancy ended because the tenant left by choice, breached their obligations, or the property no longer suited their needs, you may set market rent. You must give the tenant a statement that the rent is not above market rent, evidenced by 3 similar properties from the RTB Rent Register.

Getting this backwards is expensive and common. A landlord who ends a tenancy to sell, then does not sell, then relets at market rent has set an unlawful rent and served an invalid notice. If you are reviewing rent on an existing tenancy rather than setting it on a new one, the rules and the notice differ again: see the RTB rent review notice checker and our post on the 2% cap in practice.

6 mistakes that make an agreement unenforceable

1. Skipping the RTB copy of the rent setting notice. Serving the tenant only is the most common failure of 2026. The notice is invalid without the RTB copy.
2. Treating a fixed term as an end date. A 12 month term does not end the tenancy. Part 4 rights run alongside it, so after 6 months of continuous occupation without a valid notice of termination the tenant has security of tenure regardless of what the lease says.
3. Taking more than one month’s deposit. The cap is one month’s rent, and no more than one month’s rent in advance. Weekly and fortnightly rents have to be converted to the monthly equivalent before you check.
4. Serving a notice of termination without copying the RTB the same day. The notice is invalid. Periods run from 90 days under 6 months, to 152, 180, 196 and 224 days as the tenancy lengthens. See notice of termination periods.
5. Using a template that predates 1 March 2026. It will offer termination grounds a large landlord no longer has, and it will contain no rent setting notice at all.
6. Missing the 30 day registration deadline. An unregistered landlord cannot serve a valid notice of termination for rent arrears, and the RTB can impose sanctions of up to EUR 15,000 for improper conduct plus up to EUR 15,000 in investigation costs.

What a written agreement can never do

An agreement is a contract, and a contract cannot contract out of statute. Any clause that varies or restricts the section 12 landlord obligations or the section 16 tenant obligations is not binding, however clearly it is drafted and whoever signed it.

That means a clause saying the tenant waives Part 4 rights does nothing. Nor does a clause allowing entry without notice, a clause making the deposit non-refundable, a clause requiring the tenant to pay for repairs that are the landlord’s responsibility, or a clause permitting a rent increase more often than once every 12 months.

The risk is not that the clause is struck out in isolation. It is that an adjudicator reading an agreement stuffed with unenforceable terms treats the whole document, and the landlord behind it, with less confidence.

How to produce the full set in about 10 minutes

We built the Irish tenancy agreement generator because the RTB publishes its template as a flat PDF you print and fill in by hand, and it does not produce the Notice of Rent Setting at all. The generator asks 15 plain questions and produces all 4 documents as finished PDFs.

It does the statutory work rather than leaving it to you. It pulls the Consumer Price Index straight from the CSO, calculates the maximum lawful rent for your route and refuses a rent above it. It caps the deposit at one month. It prints only the termination grounds actually available to a landlord of your size. It dates the compliance checklist to your tenancy, so the registration deadline and the first lawful rent review date are real dates rather than general advice.

It is free, there is no account, and nothing is transmitted. Every document is built inside your browser, so the names, addresses and IBAN you enter never reach us. It is a demonstration of our document automation, not legal advice, and you should have anything unusual reviewed by a solicitor.

How Rentalize handles this at scale

One tenancy is a form. Forty tenancies is a compliance calendar, and that is a different problem. Every letting carries a registration deadline, a rent setting notice, a first lawful review date, a BER, fire safety checks and a deposit you have to be able to account for years later.

Rentalize Core holds those obligations against each tenancy and raises them before they fall due, generating the notices from the tenancy data you already hold rather than from a blank template. Rentalize Pay collects rent by direct debit and reconciles it, which is what makes an arrears case provable when it reaches the RTB. Letting agents managing portfolios for multiple owners will want letting agent software with client money handling built in.

If you would like to see how the compliance calendar works across a real portfolio, you can compare plans or book a 20 minute walkthrough.

Frequently asked questions

What must be included in a tenancy agreement in Ireland?

The names of every landlord and tenant, the address of the dwelling, the start date, whether the term is fixed or periodic, the rent and how it is paid, the deposit, who pays which utilities and charges, the section 12 and section 16 obligations, how notices are served, any additional terms, and signatures from everyone. Since 1 March 2026 the agreement must also be accompanied by a separate Notice of Rent Setting served on the tenant and the RTB.

Is a tenancy agreement legally binding without a solicitor in Ireland?

Yes. An agreement signed by every landlord and every tenant is a binding contract, and no solicitor, witness or stamp is needed. A written agreement cannot reduce the rights the Residential Tenancies Act 2004 gives a tenant, so any clause that varies the statutory obligations is not binding however it is worded.

Do I have to register a tenancy agreement with the RTB?

You register the tenancy, not the agreement, and it must be done within 30 days of the start date. Registration is separate from the agreement and from the Notice of Rent Setting, which is a third obligation. An unregistered landlord cannot serve a valid notice of termination for rent arrears, and the RTB can impose sanctions of up to EUR 15,000 for improper conduct.

How much rent can I charge on a new tenancy in 2026?

It depends on how the previous tenancy ended. If the tenant left by choice, breached their obligations, or the property no longer suited them, you may set market rent evidenced by 3 comparable dwellings from the RTB Rent Register. If it ended on a no-fault ground such as a sale, the increase is capped at 2% or inflation, whichever is lower.

Does a fixed term tenancy end when the term expires?

No. Part 4 rights run alongside a fixed term, so after 6 months of continuous occupation without a valid notice of termination the tenant has security of tenure. For a small landlord that means a rolling 6 year Tenancy of Minimum Duration, and for a large landlord a tenancy of unlimited duration. Nothing in the agreement can switch this off.

What is the maximum deposit a landlord can ask for in Ireland?

One month’s rent, and no more than one month’s rent in advance. If the rent is expressed weekly or fortnightly it has to be converted to the monthly equivalent before the cap is applied.