Suing a Business Partner for Breach of Fiduciary Duty in Texas: Costs & Timeline

Current as of: September 18, 2026 Partnership & Shareholder Disputes Texas
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Suing a business partner in Texas for breach of fiduciary duty requires filing a civil lawsuit in a local District Court. The initial filing fee is typically $350, and you must prove they violated their duty of loyalty or care.

Entering into a business partnership is a major commitment built on trust. In Texas, the law strictly protects this trust through what is known as a fiduciary duty. When a co-owner acts selfishly, steals company funds, or makes reckless decisions, they are not just being a bad partner-they may be breaking the law. Under the Texas Business Organizations Code (TBOC), partners and corporate officers owe specific duties of loyalty and care to the business and to each other.

If you discover that your partner is jeopardizing your company in Dallas, Houston, or Austin, you have the right to hold them accountable. This guide explains the financial realities, the timeline, and the specific legal steps required to sue a co-owner for breach of fiduciary duty in Texas. If you need immediate intervention, you can browse our directory of experienced Texas business litigation lawyers.

Specific Breaches of Fiduciary Duty in Texas

Not every disagreement constitutes a breach of fiduciary duty. Under Tex. Bus. Orgs. Code § 152.204, the general duties a partner owes are the duty of loyalty and the duty of care. To win a lawsuit, you must prove that your partner's actions fell into one of several legally recognized categories of misconduct.

Commingling Funds

One of the most common breaches is commingling. This happens when a partner mixes personal money with business funds. For example, if your partner uses the company credit card to pay for personal vacations or transfers business revenue into their personal checking account, they are violating their duty of loyalty. In Texas, business funds must remain strictly separate from personal assets.

Self-Dealing

Self-dealing occurs when a partner makes a business decision that enriches themselves at the expense of the company. If a partner signs a vendor contract on behalf of your company with a supplier that they secretly own, they are self-dealing. Texas law requires full disclosure; a partner must inform the company of any conflict of interest before executing such transactions.

Usurpation of Corporate Opportunities

A partner cannot steal a lucrative deal for themselves if that deal belongs to the business. This is known as the usurpation of corporate opportunities. If your real estate partnership is looking to buy land in Austin, and your partner secretly buys the best parcel under a separate LLC they own, they have unlawfully usurped a company opportunity.

Gross Negligence

Under Tex. Bus. Orgs. Code § 152.206, a partner's duty of care is limited to acting without gross negligence, reckless conduct, intentional misconduct, or a knowing violation of law. Simple mistakes do not count. Gross negligence means an extreme degree of carelessness that poses a known, serious risk to the company's survival.

The Business Judgment Rule Defense in Texas Courts

If you sue your partner for a bad business decision, they will likely raise the Business Judgment Rule as a defense. Established firmly in Texas jurisprudence, such as in Sneed v. Webre, 465 S.W.3d 169 (TX Supreme Court 2015), this rule states that courts will not second-guess the honest, rational business decisions of corporate directors or partners, even if those decisions ultimately lose money.

To overcome this defense, you must prove that the partner's actions were not just poor business strategies, but were tainted by fraud, bad faith, or a severe conflict of interest. The Business Judgment Rule protects honest mistakes, but it does not protect theft or intentional sabotage.

How Much Does it Cost in Texas?

Business litigation is generally expensive and requires a significant investment of capital. Here is a breakdown of what you can expect to pay when suing a business partner in Texas.

  • Court Filing Fees: Filing an Original Petition in a Texas state court, such as the Harris County District Court, Houston or the Dallas County District Court, Dallas, requires a filing fee of approximately $350. All case details and party information are submitted directly through the statewide eFileTexas system without requiring a separate civil cover sheet.
  • Attorney Fees: Most business litigators in Texas charge an hourly rate ranging from $350 to $700 per hour. While some attorneys may take a strong case on a contingency fee (where they take a percentage of the recovery), this is rare in complex partnership disputes.
  • Forensic Accountants: Proving financial mismanagement often requires hiring an expert forensic accountant, which can cost $5,000 to $15,000 or more depending on the volume of records.
Expense TypeAverage Cost in Texas (USD)
Initial Court Filing Fee$350 - $400
Service of Process$75 - $125
Forensic Accounting Expert$5,000 - $20,000+
Mediation Fees (Half Day)$1,000 - $2,000 per party

How Long Does the Process Take?

In Texas, the statute of limitations for bringing a breach of fiduciary duty claim is generally four years from the date the breach occurred or was discovered, under Tex. Civ. Prac. & Rem. Code § 16.004(a)(5). Once a lawsuit is filed, business litigation typically takes 12 to 24 months to reach a jury trial. However, many of these cases are resolved through private mediation or settlement within 8 to 14 months, as the sheer cost of litigation often forces both sides to the negotiating table.

Frequently Asked Questions (FAQ)

What is a fiduciary duty in a Texas business?

A fiduciary duty is a legal obligation to act in the best interest of the business and the other partners, encompassing the duties of loyalty, care, and full disclosure.

Can I force my partner out of the business?

Depending on your partnership agreement and the severity of the breach, a Texas judge may order the expulsion of a partner or the dissolution of the company entirely.

Do I need to hire a forensic accountant?

If your claim involves commingling funds, embezzlement, or complex financial self-dealing, a forensic accountant is usually necessary to trace the money and prove your damages in court.

What damages can I recover?

You may be able to recover the money stolen from the company, lost profits, attorney fees, and in cases of severe malicious conduct, punitive damages.

Will the Business Judgment Rule protect my partner from everything?

No. The rule protects honest mistakes and poor business decisions, but it does not shield a partner from liability for fraud, theft, or intentional breaches of loyalty.


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