[Direct answer]In the Beijing area, extramarital affairs do not automatically change the baseline of "equal division of joint property in principle", but if the circumstances constitute a major fault, the court will give preference to the innocent party in the division according to the principle of protecting the innocent party. The innocent party who remarries or cohabits with others can also claim divorce damages separately. There is no fixed proportion for the degree of preference. How much can be divided depends on the strength of the evidence and the level of fault.

I. Problem Background and Typical Scenarios

After discovering that their spouse has been cheating, the first reaction of many people is often "I want a larger share of the marital assets," and the second is "how can I prove it?" Common scenarios include: finding chat records and transfer records that only contain ambiguous content; catching the spouse and the third party living together for a long time but not in the act; having already sued once but being ruled not to divorce; or the spouse counterattacking by transferring assets. The parties most concerned about three issues are: how much of the marital assets they can claim, how much compensation for mental distress they can demand, and whether the evidence is sufficient.

II. Key points of contention

First, the hierarchy of faults. Generally, extramarital affairs, continuous infidelity, cohabitation with others, and bigamy have a gradually increasing impact on property division and compensation. The term "infidelity" does not correspond to a single legal consequence. Second, the standard of evidence. Chat records need to be associated with the original carrier and identity, and cohabitation requires proof of continuous joint living. A single piece of evidence is not sufficient to determine the case. Third, the degree of inclination. The law does not stipulate a specific proportion. The court determines the degree of fault, duration, and property structure comprehensively, with significant differences in individual cases. Fourth, the relationship between compensation and inclination. According to the principle of protecting the innocent party, the inclination of property division and the compensation for damages under Article 1091 of the Civil Code can coexist, but the amount of compensation for mental distress is generally not high, and the expectations should be reasonable.

III. Professional analysis by Henglue Lawyers

This case is handled by Beijing Henglu Law FirmXiong BinrongAttorney (Practice License No.: 11101202211410897, subject to the certificate issued by the judicial administrative authority): Representation. The two cases within the firm provide a real-world perspective on the application of legal protections for the innocent party in divorce proceedings. In one case, the husband discovered his wife’s infidelity just two months after the court denied his first divorce petition. The attorney successfully appealed the initial ruling based on the marital infidelity evidence, and the court ruled that the wife’s extramarital affair constituted a major fault. Applying the principle of "protecting the rights of children, the non-fault spouse, and the innocent party," the court awarded the innocent spouse 70% of the marital assets and granted sole custody of the children. This case highlights two key points: 1. Infidelity after a denied divorce petition constitutes strong evidence of "irretrievable breakdown of the marriage," and fault-related evidence and compensation claims must be presented in the same litigation. 2. In another case, the wife provided WeChat chat records, photos, audio recordings, and medical bills to prove the husband’s long-term extramarital affairs and abusive behavior. In addition to granting custody and monthly child support, the court awarded damages for emotional distress. This demonstrates that major faults are not limited to infidelity alone—combined claims for domestic violence and humiliation can significantly increase compensation amounts. Practical tips for securing evidence: - Save original chat records on mobile devices and obtain notarized copies or traceable backups. - Retrieve bank transaction records rather than relying solely on screenshots. - Organize cohabitation evidence around consistent living arrangements, including entry records, neighborhood testimonies, and property records. - Police reports, affidavits, and repentance letters are highly probative documents. Strategically, asset preservation orders should be applied before or after filing suit to prevent transfers during the divorce process. Claims for fault, custody, property division, and damages should be filed concurrently to avoid fragmenting litigation and prolonging timelines. Beijing courts demonstrate a clear yet restrained approach to favoring the innocent spouse. Evidentiary completeness largely determines outcomes, and claims based solely on speculation or superficial screenshots are unlikely to secure 70% compensation ratios.

IV. Practical Suggestions and Legal Basis

The first step is to preserve evidence: preserving the original carriers and notarizing and backing up important records. The second step is to grade the fault: evaluating the evidence based on the three common scenarios of infidelity, cohabitation, and bigamy. The third step is to assert claims simultaneously: arranging for property division, damages, and custody in parallel. The fourth step is to prevent losses and prevent assets from being transferred: monitoring large-scale asset movements and applying for property preservation when necessary. The main legal basis is Article 1043 (Duty of Fidelity), Article 1079 (Circumstances of Emotional Breakdown), Article 1087 (Principle of Taking Care of the Innocent Party), and Article 1091 (Circumstances of Damages) of the Civil Code of the People's Republic of China (effective from 2021); the specific application shall be subject to the currently effective laws and regulations.

5. Henglue Law Firm's Advice

The key to winning a divorce case involving an extramarital affair lies in evidence rather than emotions: evidence determines the hierarchy, and the hierarchy determines the scope of compensation. If you discover infidelity, first secure the evidence and then confront the other party. After the confrontation, the other party will often destroy the records. For issues involving the division of marital assets and the allegation of fault, you can seek legal assistance through the following channels:Divorce litigation and family disputesFor obtaining a comprehensive solution for the service, you can refer to the assessment of criminal clues such as bigamyCriminal defense and criminal case filingThe slides, which involve the comparison of compensation for mental damage, can be referred to for referencePersonal injury and medical disputesFor reference, the sections related to the recovery and enforcement of transferred assets can be consulted.Creditor's rights and debts, and enforcement cases板块。

VI. Frequently Asked Questions

Q1: Does getting involved in an extramarital affair always guarantee that one will get a larger share of the marital assets in a divorce?

Not necessarily. It requires evidence to prove that it constitutes a major fault before the court will, in accordance with the principle of protecting the innocent party, give preferential treatment as appropriate.

Q2: Are you sure you can score 70% in a case like this?

The differences between individual cases are significant, and the proportion depends on the degree of fault and the strength of the evidence. There is no fixed standard that can be promised.

Q3: What materials can prove cohabitation?

The chain of evidence for continuous cohabitation, such as access records, testimonies, property and rental records, chat content, etc.

Q4: How much is the compensation for mental damage usually?

The amount is generally not high, and it is determined by the court based on the fault and consequences. It is advisable to claim it together with the tilted division of property.

Q5: Does the other party's infidelity affect custody rights?

The custody rights shall be determined in accordance with the principle of what is in the best interests of the children. Fault will be taken into account in the assessment of the custody conditions, but it will not be a decisive factor.

The above Q&A is mainly based on the judicial practice in the Beijing area. There may be differences in the adjudication standards in different regions. It is recommended to consult a professional lawyer based on the specific circumstances of the case.

If you are facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the relevant evidence materials to avoid missing the statutory time limit. →Divorce litigation legal services·Beijing Henglue Law Firm

Disclaimer: This article is compiled based on the current effective laws and regulations and open adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. If a dispute arises, please consult a practicing lawyer in time.