To give you accurate deadlines, it depends on which state or jurisdiction you’re in. Here’s how to determine when to mail your ballot for most places, plus quick tips to ensure it’s counted. Direct answer (quick rule of thumb)

• Check your local election office’s deadlines for mail-in or absentee ballots. Most places require either:
  • An application deadline: the deadline by which your request to receive a ballot by mail must be received.
  • A ballot-receipt deadline: the deadline by which the completed ballot must be received (some states require it by Election Day, others allow postmarks by Election Day with additional days for arrival).
• If you’re in the United States, common guidance is:
  • Apply for a mail ballot several days to a couple of weeks before Election Day to allow time for processing and mailing.
  • Return the ballot well before the deadline to avoid postal delays; many states advise returning by mail 7–14 days before Election Day, or using a drop box/ballot drop-off location when available.
• If you’re voting in another country, deadlines vary by jurisdiction; consult the official election authority for precise dates.

What to do next

• Tell me your state or country and, if possible, the election date. I’ll give you the exact application window and the ballot-receipt deadline, with steps to verify status and options for emergencies if you miss a deadline.