Why statute of limitations results differ in Texas

6 min read

Published April 8, 2026 • Updated April 15, 2026 • By DocketMath Team

This article is for informational purposes only and does not constitute legal advice. Laws change frequently — verify all citations with current official sources.

The top 5 reasons results differ

If DocketMath’s statute-of-limitations calculator produces a date that doesn’t match another tool—or an older spreadsheet—Texas-specific differences usually come from assumptions about what you’re modeling, not from the “math” being wrong.

In Texas, the relevant framework for the default calculation is set out in Texas Code of Criminal Procedure, Chapter 12. In the jurisdiction data provided, DocketMath is using a general/default SOL period:

General SOL Period: 0.0833333333 years (≈ 1 month)
General Statute: Texas Code of Criminal Procedure, Chapter 12
Source: https://statutes.capitol.texas.gov/Docs/CR/htm/CR.12.htm

Important note (per the inputs you provided): No claim-type-specific sub-rule was found. That means this content should be read as a general/default SOL window, not a claim-type-specific override. If your scenario actually requires a specialized rule, you should expect mismatches with tools that apply more granular branching.

Here are the top 5 causes for inconsistent SOL outputs in Texas:

You entered the wrong “case type” context
- Even within Texas criminal procedure, the procedural context can change what date is treated as the relevant starting point (the “trigger”).
- If the other tool assumed a different posture, it may compute the clock from a different kind of milestone.
**Trigger date mismatch (event date vs. discovery vs. filing/charging)
- Most SOL calculators differ first at the “what starts the clock?” step.
- One system may anchor to the alleged event date, while another anchors to a different procedural date (like filing/charging), producing a predictable shift.
Rounding and units conversion
- Your default SOL period is 0.0833333333 years. Numerically, that’s designed to behave like about one month.
- Tools that convert “years → days” or “months → calendar days” using different rounding strategies can output different exact “last allowable day” dates even when the window is conceptually the same.
Calendar-day vs. month-equivalent / “anniversary” logic
- Some calculators effectively add a calendar-day count; others add a month-equivalent and then handle edge cases (like how to treat the 29th–31st).
- With a ~1-month window, these conventions can create an off-by-one (or more) difference depending on the start date.
**Wrong general/default assumption (special rule vs. default window)
- If your scenario truly involves a specialized rule, a default “Chapter 12 general” calculation won’t align with a tool that applies claim-type-specific logic.
- Per the jurisdiction note, the provided inputs don’t identify a claim-type-specific sub-rule—so if you’re seeing a meaningful mismatch, it may be because your scenario needs more specific handling than the default branch.

What the “default” is in this DocketMath setup

From the jurisdiction data:

General SOL Period: 0.0833333333 years
General Statute: Texas Code of Criminal Procedure, Chapter 12
Source: https://statutes.capitol.texas.gov/Docs/CR/htm/CR.12.htm

Practical takeaway: the default behaves like ~1 month, so conversion rules and trigger-date definitions are especially sensitive.

How to isolate the variable

Use this diagnostic sequence to pinpoint what differs between two outputs. Each step changes one variable at a time—so you can quickly identify whether the mismatch is coming from inputs or date math conventions.

Freeze the jurisdiction and tool settings so both runs use the same rule set.
Compare one input at a time (dates, rates, amounts) and re-run after each change.
Review the breakdown to see which segment or assumption drives the difference.

Step 1: Confirm the default time window being applied

In DocketMath, record:

The SOL period shown (should reflect 0.0833333333 years, i.e., ~1 month)
The statute basis shown (should reference Texas Code of Criminal Procedure, Chapter 12)

Then compare to the other tool:

Does it also describe the same general/default duration (about a month)?
If it shows a different duration, the mismatch likely starts here.

Step 2: Lock the trigger date definition

Create a checklist of the dates you entered (or that the other tool asked for):

If one tool uses “event date” while another uses “filing date,” the output date will shift even if the SOL period is identical.

Step 3: Check unit conversion behavior

Compare whether the other tool:

counts calendar days, or
uses month-equivalent logic (then converts to a calendar date)

Because 0.0833333333 years ≈ 1 month, different conversion/rounding methods can yield different exact calendar results.

Step 4: Look for end-of-month effects

If your trigger date is near a month boundary (for example, the 28th–31st), run a controlled test:

Change only the trigger-day by +1 (or -1)
Re-run the calculator

If the output date jumps in a non-linear way, the tool is likely using month-anniversary or end-of-month handling logic differently.

Step 5: Validate whether specialized branching exists

If the other tool displays a different rule than “Chapter 12 general/default,” it may be applying claim-type-specific branching that DocketMath isn’t activating with your current inputs.

Gentle reminder: SOL calculations are highly procedural-context-dependent. This guide helps you troubleshoot inputs and date math behavior; it is not legal advice.

Next steps

Re-run DocketMath’s statute-of-limitations tool twice with the same SOL period but different trigger-date definitions (e.g., event date vs. filing/charging date) and see which matches the other tool.
Verify the calculator’s displayed SOL period (it should reflect the default 0.0833333333 years / ~1 month).
If the differences are small (often a day or a few days), focus on:
- calendar vs. month-equivalent logic
- rounding
- end-of-month handling
Document your exact inputs:
- trigger date used
- SOL period shown
- what the output label means (e.g., “last allowable day”)

If you want the fastest fix path, start by changing only the trigger date and keeping the SOL period fixed at the default derived from Texas Code of Criminal Procedure, Chapter 12.