Introduction

In modern litigation, especially in business disputes, construction cases, and financial matters, evidence is often overwhelming in volume. Thousands of pages of invoices, bank records, emails, or ledgers can make it impractical—if not impossible—for a judge or jury to meaningfully review the underlying documents.

Texas law provides a powerful but underutilized solution: summaries of voluminous records under Texas Rule of Evidence 1006. When used correctly, this rule allows a party to present complex data in a simplified format while still complying with evidentiary requirements.

This article breaks down how TRE 1006 works, when it applies, and how to use it strategically in Texas litigation.

The Rule: Texas Rule of Evidence 1006

Texas Rule of Evidence 1006 provides:

“The proponent may use a summary, chart, or calculation to prove the content of voluminous writings, recordings, or photographs that cannot be conveniently examined in court.”
— Tex. R. Evid. 1006

The rule further requires:

“The proponent must make the originals or duplicates available for examination or copying… at a reasonable time and place.”
— Tex. R. Evid. 1006

When TRE 1006 Applies

To properly invoke Rule 1006, you must satisfy several key elements:

1. The Underlying Materials Must Be Voluminous

The rule is not for convenience—it is for necessity.

• Hundreds or thousands of pages
• Extensive financial records
• Large datasets (e.g., construction draws, HOA records, billing histories)

If the documents can reasonably be reviewed in court, the rule likely does not apply.

2. The Underlying Evidence Must Be Admissible

This is where many practitioners slip.

A summary does not cure inadmissibility. The underlying records must independently satisfy evidentiary rules, such as:

• Business records exception (TRE 803(6))
• Proper authentication (TRE 901 or 902)

If the underlying documents are inadmissible, the summary is inadmissible.

3. The Opposing Party Must Have Access

You must provide access to the underlying documents:

• Before trial
• At a reasonable time and place
• In a usable format

Failure to do so can result in exclusion of the summary.

Strategic Advantages of Rule 1006

1. Simplifying Complex Financial Evidence

In cases involving:

• Breach of contract damages
• Construction disputes
• HOA accounting issues
• Fraud tracing

A well-prepared summary can frame the narrative for the court.

2. Jury Persuasion

Jurors do not want to sift through thousands of pages. A clear chart or summary:

• Increases comprehension
• Enhances credibility
• Anchors damages calculations

3. Trial Efficiency

Judges appreciate efficiency. A Rule 1006 summary:

• Reduces trial time
• Minimizes confusion
• Avoids unnecessary evidentiary disputes mid-trial

Common Pitfalls

❌ Attempting to Sneak in Argument

A summary must be neutral and accurate, not argumentative.

Bad:

• “Defendant’s fraudulent overcharges totaling $250,000”

Better:

• “Summary of invoices and payments from Jan 2022–Dec 2023”

❌ Failing to Lay Proper Predicate

You still need a foundation witness who can testify:

• How the summary was prepared
• That it accurately reflects the underlying records
• That the records were made available

❌ Not Producing the Underlying Documents

If opposing counsel cannot verify your summary, expect exclusion.

Practical Litigation Strategy

Step 1: Build Your Summary Early

Don’t wait until trial. Use summaries:

• During discovery
• In mediation
• In summary judgment briefing

Step 2: Tie to Business Records Affidavits

Pair your summary with:

• TRE 803(6) affidavits
• Rule 902(10) self-authentication

This eliminates the need for live custodians.

Step 3: Use in Summary Judgment

Rule 1006 summaries can support dispositive motions when:

• The underlying records are properly authenticated
• The summary is accurate and supported

Step 4: Preempt Objections

Anticipate:

• “Incomplete summary” objections
• “Misleading presentation” arguments

Neutral formatting and full disclosure of records go a long way.

Case Law Insight (General Principle)

Texas courts consistently hold that:

• Rule 1006 summaries are admissible only if the underlying data is admissible and available
• Summaries cannot be used to circumvent hearsay rules

This reinforces that Rule 1006 is a procedural tool—not a substantive shortcut.

When Not to Use Rule 1006

Avoid relying on summaries when:

• The dataset is small
• The documents themselves are persuasive (e.g., key emails)
• You risk appearing to obscure unfavorable details

Sometimes the raw evidence tells a better story.

Conclusion

Texas Rule of Evidence 1006 is one of the most powerful tools available for handling complex evidence—but it requires precision.

When used correctly, it allows you to:

• Distill overwhelming data into a compelling narrative
• Improve judicial efficiency
• Strengthen your case at both summary judgment and trial

When used incorrectly, it can result in exclusion of critical evidence.

As with many procedural tools in Texas litigation, the advantage goes to the lawyer who prepares early and executes cleanly.

At David C. Barsalou, Attorney at Law, PLLC, we help clients navigate business, family, tax, estate planning, and real estate matters ranging from document drafting to litigation with clarity and confidence. If you’d like guidance on your situation, schedule a consultation today. Call us at (713) 397-4678, email barsalou.law@gmail.com, or reach us through our Contact Page. We’re here to help you take the next step.