The “mailbox rule” for court papers gives the person served extra time because a mailed paper arrives days after the date of service. Every court system sets its own allowance. The three questions are always the same: how many days, which service methods qualify, and at what point in the computation the days are added.
The allowance by court
| Court | Other methods | Electronic service | |
|---|---|---|---|
| Federal (FRCP 6(d)) | 3 days | 3 days for leaving with the clerk or other consented means | None since |
| California (Code Civ. Proc. § 1013) | 5 days in California; 10 outside California in the U.S.; 12 to the address confidentiality program; 20 outside the U.S. — calendar days | 2 court days for fax or overnight delivery | 2 court days through ; none from (AB 540) |
| Texas (TRCP 21a(c)) | 3 days | None — not fax, email, commercial delivery or hand delivery | None |
| New York (CPLR 2103(b)(2), (b)(6)) | 5 days if mailed within New York; 6 days if mailed from elsewhere in the United States | 1 business day for overnight delivery | None |
| Florida (Fla. R. Gen. Prac. & Jud. Admin. 2.514(b)) | 5 days, only when service is made solely by mail | — | None |
Each row is handled by our calculators, including the Florida and New York rules: Florida adds its five days after the period expires, and New York adds its days to the period before the weekend rule applies.
- Mon, Nov 2Mailed from abroadService complete on mailing
- Wed, Dec 2Day 30Base period
- +20 daysMail outside the U.S.CCP § 1013(a)
- Tue, Dec 22Response due
Where the extra days go
The same number of days can produce different dates depending on where they are added.
Federal: after the period, then roll again. Rule 6(d) adds the three days “after the period would otherwise expire under Rule 6(a).” Compute the period, move it off a weekend or holiday, then add three days and check again.
Date of service: · 14 days · Mail
- Count 14 calendar days after (that day is not counted): .
- Mail adds time. Count 3 calendar days after (that day is not counted): .
Deadline:
California: added to the period, one roll at the end. Section 1013 extends the period itself; the combined period ends, and if that day is not a court day the deadline moves once. For notice periods counted back from a hearing, the extra days are counted backward from the base date instead (Code Civ. Proc. § 12c(b)).
Date of service: · 30 days · Mail, to or from outside the United States
- Count 30 calendar days after (that day is not counted): .
- Mail, to or from outside the United States adds time. Count 20 calendar days after (that day is not counted): .
Deadline:
Texas: added to the prescribed period. Rule 21a(c) adds three days to the period, and those three days are counted as calendar days even inside a short period that otherwise skips weekends.
Date of service: · 30 days · Mail
- Count 30 calendar days after (that day is not counted): .
- Mail adds time. Count 3 calendar days after (that day is not counted): .
- is not a court day (Saturday), so the deadline moves forward to , passing (Sunday).
Deadline:
The clock starts when the paper is mailed, not received
The extra days exist because service by mail is complete before the paper arrives. In federal court, service by mail “is complete upon mailing” (FRCP 5(b)(2)(C)). In California, service by mail “is complete at the time of the deposit” in the mail (Code Civ. Proc. § 1013(a)). In Texas, service by mail or commercial delivery is complete upon deposit of the paper, postpaid and properly addressed (Tex. R. Civ. P. 21a(b)(1)). So the date to enter in a calculator is the mailing date shown on the proof or certificate of service — not the postmark you noticed or the day the envelope reached you. The added days are the rule’s estimate of transit time; they apply even if the paper arrived the next day, and they do not grow if it arrived late.
Electronic service no longer buys time
Federal courts removed the three days for electronic service on . Texas adds no days for service through its electronic filing manager, by email or by fax (Rule 21a(c) covers mail only). California’s two court days for electronic service end for service on or after , when AB 540 takes effect. If you are counting from an e-served paper in any of these courts, assume no extension unless the governing rule plainly provides one.
Exceptions that catch people
- Periods that do not run from service. The extensions apply only to periods triggered by service of a paper. A federal notice of appeal runs from entry of judgment, so nothing is added however the judgment reached you (FRAP 4(a)(1)).
- The federal answer. A summons and complaint are served under Rule 4, not Rule 5, so Rule 6(d) never extends the 21-day answer period.
- California exclusions. Section 1013 does not extend the time for a notice of intention to move for a new trial, a notice of intention to vacate under § 663a, or a notice of appeal; and § 1005(b) motions use their own add-ons, with fax and overnight adding calendar days rather than court days.
- Statutes with their own count. Some deadlines set by statute are not extended by the general mail rule at all. Read the statute that creates the period.
Using the calculators
Choose the method of service in any calculator and it applies that court’s allowance in the correct place, then shows the added days as a separate step in the result. Start with the deadline calculator, or go straight to the federal, California or Texas pages.
Questions about mail-service days
How many days does mail service add in federal court?
Three days, added after the period would otherwise expire under Rule 6(a), when the paper was served by mail, by leaving it with the clerk, or by other means the party consented to in writing. Electronic service has added nothing since (Fed. R. Civ. P. 6(d)).
Does the 3-day mail rule apply to a summons and complaint?
No. Rule 6(d) extends periods that run from service of a paper under Rule 5; a summons and complaint are served under Rule 4, so the 21-day answer period is never extended for mail. Georgia’s § 9-11-6(e) says the same in words, excluding service of process.
How many days does California add for service by mail?
Five calendar days when the paper is mailed to an address in California, 10 to an address elsewhere in the United States, 12 to the address confidentiality program and 20 to an address outside the United States. The days are added to the period, and a last day on a non-court day moves once at the end (Code Civ. Proc. § 1013(a)).
Does e-mail or electronic service add days to a response deadline?
Federal courts: no, since 2016. Texas: no. New York: no for NYSCEF. California: two court days through and none from under AB 540. Georgia is the exception that still adds three days for statutory e-mail service under § 9-11-6(e).
When is service by mail complete?
On the day of mailing, not the day of receipt: Fed. R. Civ. P. 5(b)(2)(C), Cal. Code Civ. Proc. § 1013(a) and Tex. R. Civ. P. 21a(b)(1) all say service is complete on deposit in the mail. The extra days exist because the paper arrives later than that.