Pretrial Confinement Credit: Allen, Mason, and Pierce Credit Explained
Key takeaways
- Allen credit is day-for-day credit for lawful pretrial confinement — including time in civilian jail for the offenses that became the court-martial. Sherman.
- Mason credit extends day-for-day credit to restriction so severe it is tantamount to confinement — the conditions, not the label, control.
- Article 13 and R.C.M. 305(k) add credit for illegal pretrial punishment and for violations of the confinement-review rules.
- Pierce credit repays prior Article 15 punishment for the same offense — day for day, dollar for dollar, stripe for stripe — but only for the same offense, and after Leese only against the matching sentence segment.
- Credits can be waived: in Haynes, counsel’s agreement that no additional credit was owed forfeited Pierce credit — silence and “no objection” are dangerous words at sentencing.
The credit map: every type at a glance
“Confinement credit” is not one doctrine but a family of them, each with its own source, trigger, and arithmetic. The defense job at sentencing is to identify every credit the record supports, prove it, and make sure it lands against the right number.
| Credit | Source | What earns it | Rate |
|---|---|---|---|
| Allen | United States v. Allen, 17 M.J. 126 (C.M.A. 1984) | Lawful pretrial confinement | Day for day |
| Mason | United States v. Mason, 19 M.J. 274 (C.M.A. 1985) | Restriction tantamount to confinement | Day for day |
| R.C.M. 305(k) | R.C.M. 305 | Violations of the pretrial-confinement review requirements | As the rule provides |
| Article 13 | Article 13, UCMJ | Illegal pretrial punishment or unduly harsh conditions | As the military judge determines |
| Pierce | United States v. Pierce, 27 M.J. 367 (C.M.A. 1989) | Prior Article 15 punishment for the same offense | Day for day, dollar for dollar, stripe for stripe |
| Board credit | United States v. Blocker, 30 M.J. 1152 (A.C.M.R. 1990) | Consequences of an administrative board arising from the same misconduct | As determined |
Allen credit: day-for-day for pretrial confinement
The baseline is United States v. Allen, 17 M.J. 126 (C.M.A. 1984): an accused who serves lawful pretrial confinement receives day-for-day credit against adjudged confinement. The credit is administrative — it does not depend on any government misconduct. Confinement is confinement wherever it happens: time spent in civilian custody for the offenses that form the basis of the later court-martial earns Allen credit too. United States v. Sherman, 56 M.J. 900 (A.F. Ct. Crim. App. 2002); United States v. West, 56 M.J. 626 (C.G. Ct. Crim. App. 2001).
The credit needs adjudged confinement to bite against: where no confinement is adjudged, nothing requires that lawful pretrial confinement be otherwise repaid. United States v. Smith, 56 M.J. 290 (C.A.A.F. 2002). That asymmetry is one more reason the defense sentencing case and the credit accounting have to be built together.
Mason credit: restriction tantamount to confinement
United States v. Mason, 19 M.J. 274 (C.M.A. 1985) extends Allen’s day-for-day rule to restriction that is tantamount to confinement — constructive confinement in everything but name. The question is not what the order was called but what it did: how tight the geographic limits were, sign-in requirements, escorts, and how far the conditions departed from ordinary duty. A service member “restricted” to quarters under close control may be earning credit every day, while a routine restriction to the installation earns none.
Because the label never controls, the defense should document restraint conditions contemporaneously — the same factual record that supports Mason credit also feeds the review machinery for pretrial confinement and, where the conditions shade into punishment, an Article 13 motion.
R.C.M. 305(k) credit: review violations
Pretrial confinement comes wrapped in procedural protections — prompt probable-cause review, the commander’s decision, and the neutral officer’s review among them. R.C.M. 305(k) supplies the remedy when the government fails to honor those requirements: additional sentence credit for the period of noncompliance. Unlike Allen credit, 305(k) credit is a sanction — it exists because the review rules were violated, and it stacks on top of the day-for-day credit the confinement itself already earned. The review timeline and its failure points are detailed in the 48-hour, 72-hour, and 7-day reviews of pretrial confinement.
Article 13 credit: illegal pretrial punishment
Article 13, UCMJ prohibits punishing an accused before trial and subjecting pretrial detainees to conditions more rigorous than necessary. Violations earn additional sentence credit in whatever amount the military judge finds appropriate — in United States v. Spaustat, 57 M.J. 256 (C.A.A.F. 2002), for example, ninety-two days of day-for-day Article 13 credit rode alongside 102 days of Allen credit. Not every hardship qualifies: solitary confinement, by itself, does not establish an intent to punish. United States v. Mosby, 56 M.J. 309 (C.A.A.F. 2002). The doctrine — what counts as punishment, the intent inquiry, and how to litigate the motion — has its own page: Article 13 illegal pretrial punishment and confinement credit.
Pierce credit: prior Article 15 for the same offense
A commander sometimes imposes Article 15 nonjudicial punishment for an offense — and the government later court-martials the accused for the same offense anyway. United States v. Pierce, 27 M.J. 367 (C.M.A. 1989) holds that the accused must then be credited with the punishment already served: day for day, dollar for dollar, stripe for stripe. Whether that double exposure is even a fight worth having is part of the larger choice mapped in Article 15 versus court-martial.
Two boundary rules confine the doctrine:
- Same offense means same offense. Pierce bars double punishment for the same offense — it does not bar separate punishments for separate offenses growing out of one transaction. CAAF denied credit where the NJP and the court-martial addressed “separate and distinct incidents” close in time involving the same victim:
“Neither the Constitution nor the UCMJ precludes a person from being convicted for multiples offenses growing out of the same transaction, so long as the offenses are not multiplicious . . . . Likewise, although Pierce precludes double punishment for the same offense, it does not preclude multiple punishments for multiple offenses growing out of the same transaction when the offenses are not multiplicious.”United States v. Bracey, 56 M.J. 387 (C.A.A.F. 2002)
- Segment matching. In July 2025, CAAF held in United States v. Leese (C.A.A.F. 2025) that Pierce credit applies only to the segmented sentence corresponding to the offense previously punished at NJP — not to the aggregate term of confinement. Under the post-reform segmented sentencing system, a credit tied to one specification cannot be spread across the whole sentence.
What this means if you served time or punishment before trial
No one audits your credits for you. The brig’s records establish Allen credit; your restriction orders and sign-in logs establish Mason credit; the confinement-review paperwork establishes 305(k) violations; your Article 15 file establishes Pierce credit. If those documents are not gathered, presented, and put on the record at sentencing, the credit can simply vanish — and as the waiver cases show, an unwary “no objection” can make the loss permanent. Make sure your defense team walks into sentencing with the full accounting in hand.
What the credit applies against: Rock and Spaustat
Winning credit is half the battle; the other half is where it lands. In United States v. Rock, 52 M.J. 154 (C.A.A.F. 1999), CAAF distinguished administrative credits — actual and constructive confinement credit, applied against the approved sentence — from judicial credit for pretrial punishment short of confinement, applied against the adjudged sentence. The distinction mattered enormously in plea-agreement cases, because credit against a long adjudged sentence can be meaningless once a shorter cap kicks in.
Spaustat ended the confusion with a bright-line rule for all cases tried after August 30, 2002:
“[I]n order to avoid further confusion and to ensure meaningful relief in all future cases after the date of this decision, this Court will require the convening authority to direct application of all confinement credits for violations of Article 13 or R.C.M. 305 and all Allen credit against the approved sentence, i.e., the lesser of the adjudged sentence or the sentence that may be approved under the pretrial agreement, as further reduced by any clemency granted by the convening authority, unless the pretrial agreement provides otherwise.”United States v. Spaustat, 57 M.J. 256 (C.A.A.F. 2002)
The rule protects the accused: Allen, Article 13, and R.C.M. 305 credits come off the lesser of the adjudged sentence or the plea-agreement cap, as further reduced by any clemency — unless the agreement itself provides otherwise, which is precisely the kind of term counsel must scrutinize before signing. Spaustat also confirmed a judge who corrects a credit miscalculation after announcing sentence has clarified, not unlawfully reconsidered, the sentence.
Waiver traps: Haynes and the cost of “no objection”
Credits can be bargained away or simply lost. In United States v. Haynes, 79 M.J. 17 (C.A.A.F. 2019), defense counsel affirmatively acknowledged that the accused was entitled to no additional confinement credit — and that agreement with the proposed credit total, “akin to a statement of ‘no objection,’” counted as an affirmative waiver of Pierce credit. The claim was gone, not merely forfeited for later review under Article 66.
Haynes is the cautionary tale for the whole doctrine. Credit questions surface at the least dramatic moment of trial — a colloquy about arithmetic after the evidence closes — and a single unconsidered sentence from counsel can extinguish months of earned credit. The defense answer is preparation: a written credit computation, served and argued, for every category the record supports.
Practitioner’s note
In every case with pretrial restraint or a prior Article 15, we build a credit ledger before trial: each period of confinement or restriction, its conditions, the review dates, the NJP punishment actually served — each line matched to its doctrine and its documents. We serve the computation on the government and put it on the record, because we have seen credits evaporate in exactly the ways the cases describe: restriction never analyzed under Mason, civilian jail days nobody claimed, an off-hand concession that no further credit was due. The ledger costs a few hours. The days it recovers belong to the client.
Frequently asked questions
Do I get credit for time served in pretrial confinement before my court-martial?
Yes. Under United States v. Allen, every day of lawful pretrial confinement earns day-for-day credit against adjudged confinement — including days spent in civilian custody for the offenses that became the court-martial. The credit applies against the approved sentence: the lesser of the adjudged sentence or your plea-agreement cap.
What is Mason credit?
Day-for-day sentence credit for restriction that is tantamount to confinement. Courts look past the label to the conditions — the tightness of the geographic limits, sign-in requirements, escorts, and how far the regime departed from normal duty. Quarters-tight restriction under close control can earn credit; ordinary restriction to the installation generally does not.
Can I get sentence credit for an Article 15 I already served?
If the court-martial punishes the same offense as the prior Article 15, yes — Pierce credit repays the earlier punishment day for day, dollar for dollar, and stripe for stripe. It does not apply to separate offenses from the same transaction, and under the 2025 Leese decision it applies only against the sentence segment for the matching offense.
Does confinement credit come off the sentence the judge announces or my plea deal cap?
Since United States v. Spaustat, the convening authority must apply all Allen, Article 13, and R.C.M. 305 confinement credits against the approved sentence — the lesser of the adjudged sentence or the sentence allowed under the plea agreement, as further reduced by clemency — unless the agreement provides otherwise. That keeps the relief meaningful in capped cases.
Can sentence credit be waived?
Yes, and carelessly. In United States v. Haynes, defense counsel's affirmative acknowledgment that no additional credit was owed waived the client's Pierce credit entirely — an agreement treated like a statement of no objection. Credits should be computed in writing before trial and asserted on the record, never left to an improvised colloquy.
Do I get credit for pretrial confinement if my sentence includes no confinement?
Generally no. The CAAF has held there is no requirement to credit lawful pretrial confinement when the court-martial adjudges no confinement — the day-for-day credit needs adjudged confinement to offset. Illegal-punishment credit is different, which is one reason conditions of restraint should always be litigated when they cross the line.
About the attorneys behind this guide
Michael Waddington, Civilian Military Defense Lawyer
Michael Waddington has spent more than 25 years recovering confinement credit for accused service members — from brig time and civilian jail days to restriction regimes that were confinement in all but name. As a former Army prosecutor and defense counsel he has stood on both sides of the credit colloquy, and in courts-martial worldwide he builds the written credit computations that keep Allen, Mason, Article 13, and Pierce credit from disappearing into an unguarded ‘no objection.’
Alexandra González-Waddington, Founding Partner
Alexandra González-Waddington, founding partner of Gonzalez & Waddington, has litigated pretrial restraint and its consequences for more than 20 years — documenting the conditions that turn restriction into constructive confinement and pressing illegal-punishment motions in cases from sexual assault to murder. She has also handled the administrative board proceedings whose consequences can generate credit of their own, and she legally reviewed this page against the current credit case law.
Talk to a civilian court-martial defense lawyer today
Gonzalez & Waddington defends Soldiers, Sailors, Airmen, Marines, Guardians, and Coast Guardsmen worldwide — in UCMJ investigations, courts-martial, Article 15/NJP actions, GOMOR rebuttals, administrative separation boards, and Boards of Inquiry. We defend the whole case: the investigation, the trial, the administrative fallout, and the long-term consequences to your rank, retirement, clearance, and discharge.
Sources for this guide include the Uniform Code of Military Justice, the Manual for Courts-Martial (2024 ed.), the Rules for Courts-Martial, the TJAGLCS Criminal Law Deskbook, and the cited decisions of the Court of Appeals for the Armed Forces and the service Courts of Criminal Appeals. It is attorney advertising and general legal information — not legal advice, and reading it does not create an attorney–client relationship. Every case turns on its own facts. Service procedures vary; Army references (AR 27-10) are noted where used.