Statute of Limitations for Class D / 4th Degree Felony in Connecticut
6 min read
Published March 22, 2026 • By DocketMath Team
Overview
Run this scenario in DocketMath using the Statute Of Limitations calculator.
In Connecticut, the statute of limitations (“SOL”) sets a deadline for the State to file a criminal case after an alleged offense. For a Class D felony—often referred to in public-facing summaries as a “4th degree felony”—the default timeline is governed by Connecticut’s general criminal limitations statute for many felony prosecutions.
DocketMath’s statute-of-limitations calculator is designed to help you translate the statute’s time periods into a practical “earliest possible” and “latest reasonable filing” window based on key dates (for example, the alleged offense date and any tolling-related dates you may know). This blog page explains the default rule and the most common categories of deviations—without providing legal advice.
Note: The general/default SOL period described below applies when no claim-type-specific sub-rule is identified. If a specific tolling or extension provision applies, the effective deadline can move.
Limitation period
Default (general) SOL for the offense category
Connecticut’s general SOL for certain felony prosecutions is 3 years. The governing statute is Conn. Gen. Stat. § 52-577a.
This means that, under the general rule, prosecutions must generally be brought within 3 years of the relevant starting point the statute uses (most commonly, the date the offense was committed, though you should follow the statute’s own event-based trigger when using the calculator).
How DocketMath affects your results
When you use DocketMath’s statute-of-limitations tool at:
- /tools/statute-of-limitations
…you’ll typically provide dates that let the calculator compute the end of the limitations window. The practical impact is:
- If you enter an earlier offense date, the 3-year deadline is earlier.
- If you enter a later offense date, the 3-year deadline is later.
- If the tool includes fields for tolling or extensions (such as delays tied to proceedings or other statutory events), the computed deadline can extend beyond the plain 3-year window.
Example calculation (using the general 3-year rule)
Assume the alleged Class D felony occurred on January 10, 2021 and no tolling or exceptions apply. Under the general rule:
- Start: January 10, 2021
- End of general SOL window: January 10, 2024 (the calculator will compute using its date logic)
If the State files after that date, the filing would be outside the general limitations period—subject to any exceptions or tolling that might apply in the real case.
Checklist: what you may need to enter
To get a meaningful result from the calculator, gather the dates you have:
Key exceptions
No single “Class D / 4th degree” exception is assumed here because the general/default rule is the only SOL period found for this page. Still, Connecticut SOL calculations often turn on exceptions, tolling, or special triggers that can extend deadlines beyond the default period.
Because the exceptions depend on the factual and procedural context, treat them as categories to investigate, not as automatic add-ons.
Common categories that may change the deadline
When building a limitations analysis (or testing the outcome in DocketMath), these are the categories to look for:
Tolling tied to legal proceedings
Certain statutes pause or extend SOL time when defendants or proceedings trigger statutory suspension periods.Tolling tied to the defendant’s status or availability
Some provisions can suspend time during periods when the defendant is unavailable for prosecution under specific conditions.Special triggers based on discovery or concealment (where applicable)
Some criminal limitations frameworks incorporate discovery concepts for particular offenses or statutory schemes. If the offense is governed by a different SOL scheme than § 52-577a, the start date logic may differ.Legislative changes affecting timing
If the SOL statute was amended, the timing rules may change in ways that depend on how courts apply amendments to pending or future conduct. That kind of issue is fact- and timing-dependent.
Warning: Exceptions can be outcome-determinative. Even when the general SOL is “3 years,” the effective deadline might be longer due to tolling provisions—meaning you should not rely on the 3-year window alone if you suspect special procedural events.
Practical impact: how exceptions show up in the calculator workflow
When you use DocketMath, exceptions typically matter in one of two ways:
- You enter additional dates that the calculator uses to extend the deadline.
- You select an option (or the tool logic detects a tolling condition) that changes the end date.
If the calculator output looks “too far” from the offense date (or unexpectedly close), it may be because tolling inputs were missing or because you entered the wrong trigger date. Double-check the dates before drawing conclusions.
Statute citation
The general (default) SOL period discussed in this page is:
- Conn. Gen. Stat. § 52-577a (3-year general period)
Source: https://law.justia.com/codes/connecticut/title-52/chapter-926/section-52-577a/?utm_source=openai
The page is structured around the general/default rule because no claim-type-specific sub-rule was identified in the materials provided for this briefing. That means: unless a different statutory provision or tolling rule applies, the baseline computation is the 3-year period.
Use the calculator
To compute the likely end of the SOL window using DocketMath, go to:
- /tools/statute-of-limitations
Here’s how to think about your inputs and how the output can change:
Inputs to prioritize
- Offense date (or trigger date)
This anchors the 3-year window. Even a small change (days rather than years) can materially affect the result. - Filing date (if you have it)
The calculator can compare filing date versus the calculated SOL expiration date. - Tolling-related dates (if the calculator provides fields)
Adding these can extend the computed deadline.
Output you should expect
Most SOL calculators present results in a form similar to:
- Computed SOL expiration date (end of the limitations window)
- Timeliness comparison (whether the filing date is before or after the expiration date)
Quick comparison approach
If you’re testing timeliness:
- If filing date ≤ computed expiration date, the filing is generally within the limitations window under the modeled rule.
- If filing date > computed expiration date, the filing is generally outside the modeled rule—subject to any tolling/exception inputs you included.
Related reading
- Choosing the right statute of limitations tool for Vermont — Tool comparison
