Yes — “eligible through June 26” usually means June 26 is included, so it remains eligible until the end of that day. The wording “through” is generally read as inclusive, and one source example uses “eligible Canadians’ bank accounts on Friday, June 26,” which treats June 26 as part of the active window.

Plain-English rule

  • “Through June 26” = up to and including June 26.
  • “Until June 26” can sometimes feel ambiguous, but in everyday use it often still includes that date.
  • If something says “through June 25,” then June 26 would not be included.

Example

If a registration is open through June 26 , you’d normally be able to submit on June 26 before the deadline closes that day.

Small caveat

Some organizations close deadlines at a specific time on June 26, like 11:59 p.m. or local office hours, so the exact cutoff can matter more than the date itself.