When you fear that the other spouse is declaring only part of their resources during a divorce, the problem is not just figuring out whether unreported income or assets exist. You must also figure out what facts can be proven, what documents are already mandatory in the proceedings, and what investigations the court can order. A generic suspicion alone establishes neither the existence of spousal maintenance nor its amount.
I will explain how asset reconstruction relates to the maintenance claim, why bank statements and tax returns are important but do not exhaust the investigation, and what paths remain open if the filed information appears incomplete. We will also examine an essential distinction: the other ex-spouse's greater wealth matters, but it does not automatically turn the financial gap into a right to maintenance.
Spousal Maintenance Does Not Depend Solely on the Income Gap
Spousal maintenance requires a comprehensive assessment. Article 5 of Law no. 898 of 1970 considers the conditions of the ex-spouses, the reasons for the decision, the personal and financial contribution given to the family and the formation of assets, the incomes, and the duration of the marriage. Maintenance may be granted when the claimant lacks adequate means or cannot procure them for objective reasons. The current text of the provision can be consulted in the divorce law, Article 5.
Asset reconstruction therefore serves to make the comparison reliable. If employment income, a business activity, financial availability, or significant assets do not emerge from the initial presentation, the court risks comparing incomplete data. However, the assessment does not concern only what is owned by the ex-spouse ordered to pay: it is also necessary to reconstruct the resources, working capacity, and burdens of the person formulating or contesting the claim.
The marital standard of living is not an automatic calculation. The Court of Cassation links maintenance to an assistive function as well as a compensatory and equalization function: the contribution given to family life, any professional sacrifices, the duration of the relationship, and the concrete economic and financial conditions after the divorce become central. You can read this approach in the press release of the Court of Cassation on the Joint Civil Sessions judgment no. 18287 of 2018.
What Financial Documents Must Enter the Proceedings
Financial information must be provided from the outset. In proceedings involving claims for financial support, the introductory petition must be accompanied by tax returns for the last three years, documentation on real rights relating to real estate and registered movable property, corporate shares, and bank and financial statement extracts covering the last three years. The same documentary burden applies to the other party's response.
This obligation is relevant because it prevents reducing the discussion to solely the latest tax return. Three years of documentation make it possible to observe a sequence. Recurring deposits, financial availability that does not correspond to the indicated income, corporate shareholdings, asset disposals, or sudden changes in transactions may emerge. No single piece of data, however, necessarily proves concealment: it must be read together with its origin and the explanation offered by the interested party.
The legal source is Article 473-bis.12 of the Code of Civil Procedure, introduced by the family procedure reform. The requested banking documentation does not authorize invasive private initiatives. This means that, in the proceedings, the parties must present extracts of their own relationships and that the court has tools to complete a picture that remains deficient. The text of the article and related rules are available in Legislative Decree no. 149 of 2022.
When a Clue Can Justify a More Thorough Reconstruction
Undeclared income must be distinguished from a mere impression of affluence. The use of a car, a vacation, or a home can raise questions, but they do not prove on their own who bears the cost, whether the asset actually belongs to the interested person, or whether stable income exists. In proceedings, it matters to transform doubt into specific facts: a payment, a contract, a corporate office, ownership, a financial flow, or documentable discrepancy.
Consistency between income, assets, and expenses is often the decisive point. A modest tax return may be compatible with real financial hardship; however, it may prove unconvincing if it is accompanied by financial availability, business activities, or disbursements that have no verifiable explanation. Here too, the correct approach is not to presume "off-the-books" income, but to point out the inconsistency and ask that it be clarified with relevant documents or investigations.
Formal ownership does not always close the issue. An asset registered in the name of a third party may be extraneous to the ex-spouse's assets, but it may also make it necessary to understand who uses it, who finances it, and what actual economic relationship exists. However, family or personal proximity to the registrant is not enough. To attribute relevance to the asset, elements are needed that concretely link that availability to the party's financial condition.
Production Orders and Investigations: What Powers Does the Judge Have
The judge can fill in incomplete documents, but does not launch indiscriminate investigations. In financial support claims, the judge can order the integration of documentation, issue production orders and investigations into income, assets, and actual standard of living. This power may also concern third parties and, when necessary, can be exercised by utilizing the tax police. This is an express provision of Article 473-bis.2 of the Code of Civil Procedure.
The request must have a recognizable subject matter. It is not sufficient to ask to generically check every bank relationship, every acquaintance, or any activity of the other spouse. It is useful to explain which fact is controversial, which concrete element makes its ascertainment plausible, and why that document or investigation can affect the decision regarding maintenance. This precision also protects the adversarial process: the other party must be able to respond and offer an explanation.
Incompleteness can have procedural consequences. Article 473-bis.18 establishes that inaccurate or incomplete information or productions regarding one's financial conditions are evaluable by the judge for the purposes of evidence, expenses, and, in the cases provided for, aggravated liability. Furthermore, for the production order provided for by Article 210 of the Code of Civil Procedure, non-compliance without justified reason may entail a financial penalty and allow the judge to draw evidentiary arguments from the conduct held. This is not an automatic presumption of hidden income: omissive conduct enters into the assessment together with the other elements.
How the Choice Between Agreement, Litigation, and Revision Changes
An agreement is reliable only if it rests on shared and understandable data. If both ex-spouses know their respective availability and intend to define economic relations as well, an understanding can avoid broader judicial ascertainment. If, on the other hand, a relevant piece of data remains contested or is not documented, setting maintenance on an uncertain asset snapshot exposes the parties to subsequent conflicts and makes it harder to understand whether the agreement is balanced.
In litigation, the financial claim must be linked to decisive facts. It is not useful to accumulate documents without explaining what they demonstrate. A bank transaction can be income, a refund, a transfer between accounts, financing, or an exceptional expense. Real estate can produce rental income, remain unused, be encumbered by a mortgage, or be used by third parties. The economic meaning depends on its concrete function and available evidence.
Revision requires new facts, not merely new evidence of old facts. A change in income or assets after the decision may justify changing the allowance. Discovering an account or documents relating to resources that already existed does not, by itself, allow the final assessment to be reopened through an ordinary revision application. Subsequent changes must be distinguished from possible grounds for challenging the decision, which have their own requirements and time limits. This limit on reopening final decisions is discussed in the Court of Cassation review, Order no. 6639 of 2023.
Errors to Avoid in Asset Reconstruction
Do not confuse spousal maintenance with child support. The financial resources of parents may be relevant in both topics, but the purpose is different. Spousal maintenance concerns the relationship between ex-spouses and the prerequisites established by Article 5 of the divorce law; child support instead responds to their needs and the proportion between the parents' resources. The same evidence may be useful, but the legal conclusion is not identical.
Do not use information obtained in violation of privacy or law. The need to reconstruct resources does not allow autonomously accessing the other spouse's accounts, devices, correspondence, or archives. The correct path consists of making use of documents legitimately at one's disposal, alleging specific facts, and asking the judge for investigative tools proportionate to the dispute.
Preparing a few orderly pieces of data is more useful than a narrative reconstruction. For an initial comparison, previously issued orders, available tax returns, one's own bank statements, documents on real estate, companies, or financing, and elements showing a concrete discrepancy can be useful. If contested payments or assets exist, it is useful to indicate the date, the person involved, and the reason why that fact can affect actual resources.
Frequently Asked Questions
Can I request the other spouse's bank statements?
In proceedings, parties must attach bank statements for the last three years when there is a claim for financial support. If the documentation is missing or appears insufficient, the judge can order its integration and arrange other relevant investigative means. However, you cannot autonomously acquire the other spouse's confidential banking data without a legal title allowing it.
Is undeclared income enough to obtain spousal maintenance?
No, it is not enough on its own. Higher effective income can change the comparison between financial conditions, but maintenance also requires verifying the prerequisites of Article 5 of Law no. 898 of 1970: inadequate means or the impossibility of procuring them for objective reasons, in addition to criteria linked to the contribution given during the marriage.
Can the judge order investigations by the tax police?
Yes, but not automatically. Article 473-bis.2 of the Code of Civil Procedure allows investigations into income, assets, and actual standard of living, also towards third parties, with possible recourse to the tax police. The request must remain linked to facts relevant to the financial claim and cannot substitute an entirely generic suspicion.
If the other spouse omits documents, do they automatically lose the case?
The omission does not decide the dispute on its own. The judge evaluates inaccurate or incomplete information together with the rest of the evidence and may attribute relevance to procedural conduct. The potential consequence depends on what is missing, the justification offered, the other available data, and the impact of the omission on the calculation of financial conditions.
Can I ask to modify maintenance already established if new assets emerge?
Yes, if the assets represent a relevant subsequent change. An acquisition or increase in assets after the decision may justify revision when it changes the financial balance. Discovering assets today that already existed when the decision was made is not sufficient on its own: possible remedies against that decision must be considered separately from modification based on new facts.
Institutional References
The main sources are Law no. 898 of 1970, for the prerequisites of spousal maintenance, and Articles 473-bis.2, 473-bis.12, and 473-bis.18 of the Code of Civil Procedure, for economic documentation, investigative powers, and loyal cooperation. The reading of the rules must always be linked to provable facts in the individual proceeding. If you need to decide how to set up a claim, a defense, or a revision request, you can contact me.