If your ex-partner stops paying their share of the rent, the end of the relationship does not automatically protect you or the contract. The most urgent question is often simple: do you also have to cover their share to avoid problems with the landlord? And if you pay everything, can you later ask for a refund of what you advanced?
The answer depends first of all on the contract. I want to help you distinguish the relationship with the landlord from the one between you and your ex-partner. These are two connected levels, but they do not coincide: the first serves to protect your stay in the home and avoid default; the second concerns the actual distribution of the cost and the possible reimbursement of what you paid beyond your share.
The contract decides who must pay the rent to the landlord
Being joint tenants does not automatically limit liability to half the rent. Article 1294 of the Italian Civil Code presumes joint and several liability among co-debtors unless the law or contract provides otherwise. A clause may confirm that rule or regulate the obligation differently. Where liability is joint and several, the landlord can demand the whole rent from either tenant; the internal allocation of the expense remains a separate matter.
Solidarity operates in the external relationship with the landlord: whoever receives the payment does not have to resolve the separation of the couple or establish who continued to live in the property. The Court of Cassation has reiterated that when the contract provides for the joint and several obligation of the two tenants, the withdrawal of one does not free the other from the obligation to pay the entire rent; the fact that the property is only partially occupied does not change this effect. Court of Cassation review on ordinance no. 21051 of 2024.
Personal separation alone does not modify the lease
Moving out of the house does not equal exiting the contract. The ex-partner who hands the keys over to you, changes residence or stops using the apartment may have made a personal commitment towards you, but remains a tenant until the rental relationship changes according to the rules provided. An agreement between the two of you is not binding on the landlord by itself.
A withdrawal must be distinguished from an agreed amendment to the lease. For residential leases, article 3(6) of Law no. 431 of 1998 permits a tenant to withdraw for serious reasons by giving the landlord six months’ notice, even without a specific contractual clause. The lease may provide more favourable terms. The end of a relationship does not automatically constitute a serious reason: the actual circumstances must be assessed. A valid withdrawal does not require the landlord’s acceptance; assignment or substitution of a tenant follows different rules.
Default and eviction: why timely payment can protect both
Non-payment does not only become a problem for the ex-partner who stopped paying their share. If the rent owed to the landlord remains unpaid, the default concerns the contract as a whole and can jeopardize the availability of the home. For residential leases, Article 5 of Law no. 392 of 1978 considers unpaid rent after twenty days from the due date to be grounds for termination, and for accessory charges, unpaid amounts exceeding two months of rent. Article 5 of Law no. 392 of 1978.
Paying the entire amount can therefore be a protective choice, not the final acceptance of the other's debt. If the contract is still effective and you want to stay in the property, covering the missing part prevents an internal dispute from turning into a breach towards the landlord. However, keep proof of payment, clearly indicate the month paid and do not confuse the payment of the rent with a waiver of reimbursement.
In residential leases, the law contemplates the possibility of remedying default in judicial proceedings, but it is not prudent to consider it an ordinary debt management plan. The payment must include the amounts owed in the proceeding, including those accrued in the meantime and liquidated expenses; in the presence of proven difficulties, the judge may grant a deadline within the limits provided by law. Constitutional Court Judgment no. 79 of 2020 on Article 55 of Law no. 392 of 1978.
Two different ways to get out of the joint rent problem
You can keep the contract or modify it, but the two choices produce different consequences. If you wish to stay in the apartment and can afford the rent, the priority is to avoid arrears towards the landlord. In parallel, you can ask your ex-partner to contribute according to the agreements reached and, if necessary, demand the return of the advanced sums.
Modifying the contract, on the other hand, requires the involvement of the landlord. It can consist of continuation with a single tenant, replacement with a new person approved by the landlord, or consensual closure of the relationship. A communication sent by the ex-partner to you is not enough: the landlord must accept the new arrangement and the document must clarify as of when obligations, signatures and responsibilities for rent, expenses and damages change.
A frequent mistake is to suspend or reduce payment while waiting for the landlord to take action against the other co-signatory. If solidarity exists, this choice can aggravate the position of the person who stayed. The most straightforward alternative is to separate the issues: first the rental relationship is preserved, then the economic rebalancing between the ex-partners is addressed.
If you pay more than your share, you can ask for reimbursement
Integral payment does not cancel the share that belonged to the ex-partner. In internal relations between joint and several debtors, whoever has paid more than due can exercise the right of recourse provided by Article 1299 of the Civil Code: in practical terms, they can ask the other for the part that was supposed to remain their responsibility. Article 1298 presumes equal shares unless an agreement or a different fact emerges.
Half is therefore a starting point, not an inevitable formula. If you had agreed in writing on a different distribution, if one of the two had undertaken to bear a larger share, or if documented payments show a different agreement, the request can change. The content of the agreement matters, not just the end of cohabitation.
To make the reimbursement claim concrete, you mainly need the lease agreement, proof of the rent and charges actually paid, communications with the landlord and any messages or agreements that explain how you had decided to split the expense. The Court of Cassation has clarified that the right of recourse arises with the payment of the entire debt and follows the ordinary ten-year prescription period, which runs from the payment itself. Principle of the Court of Cassation on recourse between joint and several debtors.
The security deposit is not the last month of rent
The security deposit serves as a guarantee, and does not automatically replace current rent payments. For leases governed by Law no. 392 of 1978, the deposit cannot exceed three months' rent and produces legal interest to be paid to the tenant at the end of each year. Article 11 of Law no. 392 of 1978.
For this reason, it is not safe to decide on your own not to pay the last months' rent because the landlord already holds the deposit. As long as the contract is ongoing, the rent remains due at the established deadlines. Using the deposit to offset a debt requires a clear agreement or a definition of the relationship upon delivery of the property.
The return of the deposit and the division between ex-partners are distinct issues. The landlord must be able to verify any unpaid amounts or damages attributable to the rental relationship; between you, instead, it must be established who materially paid the sum and how the balance must be divided. The deposit receipt and the handover report help prevent a single person from being left without protection on both fronts.
Which choice immediately protects the person staying in the property
The first check concerns the current risk of default. Compare the rent, requested charges and due dates with the payments already made. If a part is missing and you intend to keep the home, prevent the conflict with the ex-partner from producing unpaid amounts towards the landlord. A traceable bank transfer with a precise payment reference makes what you paid and for which month clearer.
Immediately after, it is useful to put in writing a request addressed to the ex-partner: indicate the advanced sums, the criterion by which you consider their share due, and the invitation to pay. If you want to permanently close the situation, the document to define is not just an agreement between you: it must also address the contract with the landlord, the date of takeover or termination, and the management of the deposit. If the debt is contested or a notice to quit has already arrived, you can contact me.
Frequently asked questions
Do I have to pay all the rent if my ex-partner does not pay their share?
It may be necessary to avoid arrears if the tenants are jointly and severally liable. The law presumes this liability unless otherwise provided, and the lease may expressly confirm it. The landlord can then ask you for the whole rent. Payment does not prevent you from seeking reimbursement from your ex-partner for the share that remained their responsibility internally.
If the ex-partner has left the apartment, are they free from the contract?
No, not automatically. Leaving, changing residence or handing keys to an ex-partner is insufficient. There must be a valid statutory or contractual withdrawal, with the required communication and notice to the landlord, or an agreement regulating departure. In residential leases, withdrawal for serious reasons requires neither a specific clause nor the landlord’s acceptance.
Can the landlord use the security deposit instead of the last month's rent?
Only if a clear agreement exists. The security deposit is a guarantee and does not automatically replace the months to be paid during the lease. Unilaterally stopping rent payments because the deposit exists can create default. It is preferable to explicitly define with the landlord how to handle the deposit, rents and handover.
Can I ask my ex-partner for half of what I paid?
As a rule yes, if you paid beyond your share. Between joint and several debtors, shares are presumed equal, barring proof of a different agreement or circumstances justifying a different distribution. Contract, bank transfers, receipts and communications between you are useful to prove both the advance and the division criterion.
Does the grace period always prevent eviction for non-payment?
No: it is a possibility regulated by law for residential leases. The remedy requires full payment of the amounts owed in the proceeding, including accrued items and liquidated expenses. The judge can grant a deadline only under the conditions provided. Therefore, it does not replace timely management of unpaid rents.