OPINION OF THE COURT
Louis P. Ureinoli was convicted of murder, conspiracy to commit murder, and attempted murder by a New Jersey jury in 1996. The District Court on its own motion dismissed his subsequent habeas petition because it contained claims that had not been properly exhausted in state court. Although Ureinoli returned to state court to exhaust those claims, by the time *271 he filed a second habeas petition in federal court, the one-year statute of limitations for such petitions had lapsed. The District Court accordingly dismissed the petition as untimely, refusing to equitably toll the limitations period.
Although the District Court’s initial dismissal of Urcinoli’s petition was not improper under prevailing law, we conclude that the one-year statute of limitations should have been equitably tolled to allow him to bring those claims in his second petition. Therefore, we will vacate the District Court’s dismissal and remand for further proceedings. 1
I.
A detailed timeline of Urcinoli’s journey through state and federal court will illuminate the basis for our decision. Urcinoli was convicted of murder, conspiracy to commit murder, and attempted murder in New Jersey state court on December 13, 1996. He was sentenced to a term of life imprisonment plus twenty years. The Appellate Division of the New Jersey Superi- or Court affirmed the conviction and sentence and the New Jersey Supreme Court denied certification. Thereafter, Urcinoli pursued a pro se motion for post-conviction relief in the New Jersey courts, a process that ended with the affirmance of Urcino-li’s conviction and sentence on May 22, 2002. On August 5, 2002, Urcinoli filed a pro se habeas petition under 28 U.S.C. § 2254 in the U.S. District Court for the District of New Jersey, raising eight alleged constitutional violations.
Although neither Urcinoli nor the state respondents had raised the issue of exhaustion, the District Court independently decided the issue without notice or a hearing. The Court determined that Urcinoli had not exhausted five of his eight claims by properly presenting them to the New Jersеy courts as federal constitutional claims and thus had an invalid “mixed” petition. 2 Finding that Urcinoli could still utilize New Jersey’s post-conviction relief process to exhaust those claims, the District Court dismissed the petition without prejudice on October 31, 2003. By that time, fourteen months after Urcinoli had filed his § 2254 petition, the one-year limitations period for filing a subsequent petition under the Antiterrorism and Effective Death Penalty Act (“AEDPA”) had passed.
In its opinion, the District Court noted:
Those prisoners who misunderstand this [total exhaustion] requiremеnt and submit mixed petitions nevertheless are en *272 titled to resubmit a petition with only-exhausted claims or to exhaust the remainder of their claims.... However, a prisoner who resubmits the petition after deleting the unexhausted claims will generally be barred from later submitting the deleted claims in a second or successive petition after they have been exhausted.
(App. 69 n. 7 (internal quotation marks and citations omitted).) The Court did not offer Urcinoli the option of deleting the unexhausted сlaims from his petition and proceeding on the ones that had been exhausted before it decided to dismiss. Ur-cinoli did not attempt to refile his petition with only the three exhausted claims, nor did he ask the District Court to reconsider its decision.
On December 13, 2003, six weeks after the District Court dismissed his petition, Urcinoli filed a second motion for post-conviction relief in state court. He received a final denial of that motion from the New Jersey Supreme Court on September 12, 2005. Apрroximately two weeks later, on September 29, 2005, Urei-noli filed a second pro se § 2254 petition, containing the eight grounds from the original petition.
On August 3, 2006, the District Court dismissed this second petition as untimely under 28 U.S.C. § 2244(d)(1), which provides for a one-year time limit on AEDPA petitions. The court held that the limitations period commenced on May 22, 2002, when the New Jersey Supreme Court declined to review Urcinoli’s post-conviction appeal. Because AEDPA does not provide for tolling of the limitations period while a § 2254 petition is pending in federal court, as Urcinoli’s was for more than fourteen months, the one-year limitations period expired on May 22, 2003. See
Duncan v. Walker,
II.
The District Court had jurisdiction pursuant to 28 U.S.C. § 2254. We have jurisdiction under 28 U.S.C. §§ 1291, 2253. Wе granted a certificate of appealability on the issue of whether Urcinoli was entitled to equitable tolling in light of the
sua sponte
dismissal of his petition after AED-PA’s time limitation had run, rendering any subsequent petition time-barred. We exercise plenary review over the Distinct Court’s refusal to equitably toll the one-year statute of limitations.
See Merritt v. Blaine,
III.
AEDPA’s limitations period is subject to equitable tolling principles.
Miller v. N.J. State Dep’t of Corrections,
A.
We conclude that Urcinoli was prevented from pursuing his habeas claims, in an “extraordinary way,” when the District Court, relying upon
Rose v. Lundy,
dismissed his timely, fully exhausted claims in a way that ensured they would never be reviewed by a federal court. Although the District Court noted in a footnote that Urcinoli could resubmit those claims after deleting the unexhausted claims from his petition, that formal acknowledgment was of little help to Urcinoli. Even if he had chosen to forgo exhaustion of all of his claims and had immediately resubmitted a petition with only the three- exhausted claims, that second petition would have been untimely because the one-year limitations period had already expired.
5
Cf. Tillema v. Long,
The District Court acted properly when it dismissed Urcinoli’s petition as a mixed
*274
petition under
Rose v. Lundy,
Deletion of unexhausted claims is an important procedurаl choice for habeas petitioners to have available. Because of AEDPA’s short limitations period, the alternative of exhausting any unexhausted claims is often an illusory one, since it is not uncommon for a district court to dismiss a mixed petition after the one-year limitations period has passed and no time remains to return to state court. The Supreme Court recognized and ameliorated that problem in 2005, adding a third alternative to the Rose procedure by рroviding that in certain circumstances a district court may “stay the [mixed] petition and hold it in abeyance while the petitioner returns to state court to exhaust his previously unexhausted claims.”
Rhines v. Weber,
Unlike the usual petitioner, Urcinoli therefore had none of the three options for going forward with a mixed petition. First, he could not refile his petition with the unexhausted claims deleted, because the District Court’s dismissal after the end of AEDPA’s limitations period meant that any refiling would be time-barred. Second, his attempt to achieve total exhaustion was futile from the start, since a subsequent petition filed after a trip through the New Jersey courts would be even more untimely. Finally, the “stay- and-abeyance” procedure had not yet been established when Urcinoli’s first petition was dismissed in 2003.
The latter two procedures are by no means guaranteed to a habeas petitioner: AEDPA’s one-year window places a practical limit on how many times a petitioner can travel back and forth between state and federal court, while only certain habe-as petitioners are eligible for stay-and abeyance. 8 Id. However, as the Supreme Court recognized in Rose and affirmed in Rhines, the deletion route remains as a backstop alternative for those petitioners *275 caught between the total exhaustion rule and AEDPA’s statute of limitations:
[I]f a petitioner presents a district court with a mixed petition and the court determines that stay and abeyance is inappropriate, the court should allow the petitioner to delete the unexhausted claims and to proceed with the exhausted claims if dismissal of the entire petition would unreasonably impair the petitioner’s right to obtain federal relief.
Rhines,
Equitable tolling is an appropriate remedy in this case to ensure Urcinoli has the opportunity to have the court evaluate the claims originally presented.
Cf. Jefferson v. Budge,
We emphasize that the District Court did not err legally in dismissing Urcinoli’s petition without giving him notice and the opportunity to respond to the exhaustion argument on the merits, delete the exhausted claims, or seek a stay of the petition. Although we have held that a district court may not
sua sponte
dismiss a habeas petition for lack of timeliness withоut affording the petitioner “notice and an opportunity to respond,” that decision came after the District Court’s 2003 dismissal of Urcinoli’s petition.
See United States v. Bendolph,
Nonetheless, a court’s action, even if legitimate when taken, may constitute an extraordinary circumstance warranting equitable tolling if it later operates to prevent a plaintiff from pursuing his rights. For example, in
Taylor v. Horn,
we approved the equitable tolling of AEDPA’s limitations period based on an incorrect prediction by a district court rather than any legal error.
Equitable tolling is similarly necessary here to allow Urcinoli to pursue his claims. The District Court’s sua sponte dismissal under Rose was аn extraordinary circumstance that left Urcinoli without a viable channel for having any of his claims addressed on the merits. Rose was meant only to prevent review of unexhausted ha-beas claims, not to bar viable, exhausted claims from federal court review.
Contrary to the State’s assertions,
Pliler v. Ford,
In
Pliler,
the Supreme Court disavowed any reading of
Rose
that would impose a requirement for district courts to аffirmatively offer petitioners the choice of deleting unexhausted claims from mixed petitions or returning with those claims to state court.
Id.
at 233,
We are further convinced that
Pliler
is inapplicable here in light of its discussion of
Castro v. United States,
In our view, the Court’s dismissal of Urcinoli’s petition without notice deprived Urcinoli of his rights in an extraordinary way. Although that dismissal was not incorrect under contemporaneous precedent, in applying equitable tolling doctrine we do not focus solely on legal error. We rest our holding on the fact that the district court’s sua sponte dismissal, a circumstance outside of Urcinoli’s control and independent of any blameworthy behavior on his part, rendered him unable to pursue his only viable course of action. In such a situation, the equities favor relief to allow Urcinoli access to federal review of his claims.
B.
In addition to showing that he was prevented from pursuing his rights in some extraordinary way, Urcinoli must prove he exercised reasоnable diligence in attempting to exercise those rights.
Merritt v. Blaine,
It is true that Urcinoli’s conduct was imperfect in one respect: he did not fully exhaust all of his claims before bringing them to federal court in his first § 2254 petition. However, that lapse does not indicate a lack of diligence on Urcinoli’s part, but rathеr a lack of legal knowledge as to his obligation to exhaust. Therefore, the initial failure to exhaust does not affect
*278
Urcinoli’s eligibility for equitable tolling.
Cf Taylor v. Horn,
IV.
This result does not expand equitable tolling beyond its scope as a remedy invoked only “sparingly,”
Irwin v. Department of Veterans Affairs,
V.
For the foregoing reasons, we will reverse the District Court’s dismissal of the second § 2254 petition and remand for the court to consider the exhausted claims Ur-cinoli presented in his petition. In light of our decision to remand, we need not reach the State’s argument that Urcinoli’s claims are still unexhausted.
Notes
. We pause to express our appreciation to pro bono counsel, Mr. David Fine of Kirkpatrick & Lockhart Preston Gates Ellis, for representing Louis Urcinoli in this appeal. Our outcome is due, in no small measure, to Mr. Fine’s commitment of time and effort and his professionalism on behalf of his client.
. The grounds for habeas relief were as follows:
(1) a violation of the Fourteenth Amendment based on the denial of his motion for a judgment of acquittal absent evidence sufficient to allow a reasonable jury to convict;
(2) a warrantless search of his apartment violating the Fourth Amendment;
(3) admission of irrelevant evidence at trial in violation of the Fourteеnth Amendment; (4) a failure to sever the charges against him at trial in violation of the Fourteenth Amendment;
(5) admission of expert DNA testimony in violation of the Fourteenth Amendment;
(6) incomplete jury instructions in violation of the Due Process Clause of the Fourteenth Amendment;
(7) ineffective assistance of trial counsel based on a failure to request certain jury instructions and other errors; and
(8) ineffective assistance of trial counsel for failure to properly cross-examine sevеral witnesses.
The District Court found that Urcinoli had not exhausted the first, third, fourth, fifth, and sixth of these claims in state court.
. As previously noted, the one-year limitations period had already lapsed even before the District Court dismissed Urcinoli's first habe-as petition.
.Blurring the first and second categories, we have also held that one eligible "extraordinary" circumstance might be "where a court has misled a party regarding the steps that the party needs to take to preserve a claim.”
Brinson v. Vaughn,
. Furthermore, as a pro se petitioner, Urcinoli may well have been confused about the proper course of action in light of the District Court's decision. Although the Court mentioned the choices of deletion versus exhaustion, it warned only that deletion would require Urcinoli to give up on his unexhausted claims without mentioning that the ticking clock of AEDPA could render exhaustion of those claims in state court impossible.
. In this respect, Urcinoli's case is unlike that of the petitioner in
Jones v. Morton,
. We created our own version of the stay-and-abeyance procedure before the Supreme Court's decision in
Rhines,
but that decision also post-dated the District Court’s October 31, 2003 dismissal.
See Crews
v.
Horn,
. Specifically, the Court held that a district court should allow а petitioner to stay only if he can demonstrate good cause for the failure to first exhaust his claims in state court, the unexhausted claims are not plainly meritless, and the petitioner has not engaged in “abusive litigation tactics or intentional delay.”
Rhines,
.
Pliler
does not address whether a district court has some obligation to expressly offer petitioners both options — deletion or exhaustion — even if it makes no recommendation as to which course to take. We suggested that such a duty might exist in
Brinson,
stating that where a petitioner presented at least one meritorious, exhausted claim in a mixed petition, “the District Court, at a minimum, should have given [him] the option of going forward with” that claim.
