When does section 2255’s finality-based one-year limitation begin?

Section 2255(f)(1) uses the date the federal judgment of conviction becomes final. Clay holds that, after an appellate affirmance with no certiorari petition, finality occurs when the available certiorari time expires. Compare all four accrual limbs. State-petition tolling under section 2244(d)(2) must not be imported automatically.

Responsible actor. A federal prisoner moving to vacate, set aside or correct a sentence in the sentencing court.

Identify the federal judgment being challenged and whether direct appeal occurred.

For appellate affirmance without certiorari, apply Clay’s certiorari-expiry rule rather than the mandate date.

For a different review history, establish its actual available review periods before selecting a finality date.

Compare limbs (2), (3) and (4). Do not transfer section 2244(d)(2)’s state-review exclusion to section 2255.

This source guide requires the latest qualifying accrual date, complete review history, claim-specific facts and every supported tolling interval. It supplies no automatic date or paid calculation. A single date cannot establish the limitation period for this procedure.

1. Establish the relevant judgment, asserted claim and governing state-custody or federal-sentence procedure.
2. Compare every applicable statutory accrual limb using the actual review and discovery record.
3. Identify any circuit-supported equitable relief without importing state-petition statutory tolling.
4. Apply the appropriate time-computation and filing rules only after those legal facts are established.

After establishing the governing accrual event, exclude that event day and examine the corresponding anniversary under the applicable federal time-computation rules. A one-year period must not be replaced mechanically with 365 days across a leap year. This guide does not resolve a February 29 anniversary or supply a running-day ledger. The latest qualifying statutory accrual date and every legally supported excluded interval must be established before arithmetic can represent a filing endpoint. Any equitable tolling or innocence argument requires authority applicable to the actual section 2255 claim and circuit. This guide neither grants relief nor transplants a state-prisoner gateway.

Rule 6(a) supplies ordinary weekend, legal-holiday and qualifying clerk-inaccessibility rules where applicable through Habeas Rule 12. Identify the filing district, actual holidays and access facts. A hypothetical Saturday anniversary does not establish the next open filing day in an actual case. A closed-day adjustment cannot itself establish accrual, statutory tolling or equitable relief.

This source guide requires the latest qualifying accrual date, complete review history, claim-specific facts and every supported tolling interval. It supplies no automatic date or paid calculation. A single date cannot establish the limitation period for this procedure.

Assume October 6, 2026 is already established as this claim’s latest qualifying accrual date, with no applicable excluded interval. A corresponding-anniversary illustration reaches October 6, 2027. This arithmetic does not determine whether the assumed legal trigger is correct. October 6, 2027 is an explanatory nominal anniversary only. The guide supplies no automatic filing endpoint.

Assume October 3, 2025 is the established latest accrual date and no excluded interval applies. The corresponding anniversary is Saturday, October 3, 2026. A weekend-only illustration reaches Monday, October 5. Actual district holidays, clerk access and filing facts remain separate checks. Do not publish an automatic Monday filing date without establishing the applicable calendar and all other facts.

Assume an appellate mandate issues September 1, 2026, while the legally available certiorari period expires October 6, 2026. In Clay’s appellate-affirmance setting without certiorari, finality uses the established certiorari expiry. It does not use the earlier mandate. October 6 is the candidate finality event in this hypothetical. Other accrual limbs still require comparison.

Assume a federal prisoner litigates a state predicate conviction for thirty days after the federal judgment becomes final. Section 2255 contains no state-review tolling provision equivalent to section 2244(d)(2). A qualified later fact under Johnson or other supported relief needs a separate inquiry. Do not add thirty days simply because state litigation was pending.

Mandate is not Clay’s trigger

Clay rejects the mandate date where the prisoner’s time to seek certiorari after appellate affirmance has not expired.

Alternative triggers remain available if qualified

Section 2255(f) selects the latest applicable date, including governmental impediment, qualifying new right and diligent factual discovery.

Different tolling statute

Section 2255(f) contains no counterpart to section 2244(d)(2)’s exclusion of qualifying state collateral-review time. Any asserted relief needs its own governing authority.

Innocence authority must match this procedure

McQuiggin directly concerns the state-prisoner limitation. Do not treat it as an automatic Supreme Court holding that excuses every section 2255 claim or sentence challenge.

• This source guide requires the latest qualifying accrual date, complete review history, claim-specific facts and every supported tolling interval. It supplies no automatic date or paid calculation. A single date cannot establish the limitation period for this procedure.
• Section 2255 challenges a federal sentence in the sentencing court. It differs from the state-prisoner petition governed by section 2244(d), despite similar one-year wording.

• Keep the operative judgment, appellate decisions and applicable review-period evidence.
• Document every asserted claim’s statutory accrual basis and supporting diligence record.
• Preserve the circuit authority and actual facts for any asserted equitable relief.
• Check the filing district’s rules, holidays, clerk access and inmate-mail evidence.
• Review second-or-successive restrictions separately from limitation arithmetic.
• The federal prisoner files a section 2255 motion with the sentencing court clerk. Rule 3 requires docketing in the criminal case and clerk delivery or service to the United States attorney. For an inmate filing, establish timely internal-mail deposit and use of an available legal-mail system. Preserve the declaration or notarized evidence stating deposit and prepaid first-class postage. Drafting, mailing through an unproved route or requesting extra time does not itself establish a timely motion.