Current source-reviewed calendar pages. Each page lists jurisdiction, cycle, verification date, and official source links.
Federal taxes
2026 Federal Tax Deadline Calendar
Key dates for most calendar-year individual federal tax filers and 2026 estimated tax payments.
Federal holidays
2026 Federal Holidays Calendar
OPM-source-reviewed federal holiday dates with USPS and Federal Reserve service notes.
Student aid
FAFSA Deadline Calendar For 2025-26 And 2026-27
Federal Student Aid source-reviewed federal FAFSA dates and school/state deadline boundaries.
Calendar hub
Use calendars for dates, then guides for context
The calendar hub collects the site’s source-reviewed date pages. It is useful when you need to scan several dates in one place, but a calendar row is not the same thing as a complete answer. For deadline-sensitive actions, open the related guide and review the official source box before relying on a date.
Calendar pages are intentionally separated by source family. Federal tax dates come from IRS sources, federal holiday dates come from OPM and service-specific sources, and FAFSA dates come from Federal Student Aid sources. Mixing those calendars into one undifferentiated list would make it harder to see which agency controls which date.
Current calendar pages
2026 Federal Tax Deadline Calendar
IRS-reviewed filing, extension, and estimated tax dates for the 2025 return and 2026 estimated tax cycle.
2026 Federal Holidays Calendar
OPM, USPS, and Federal Reserve holiday schedule context for federal offices, postal-service planning, and banking-calendar boundaries.
FAFSA Deadline Calendar For 2025-26 And 2026-27
Federal Student Aid deadline and award-year dates with school and state deadline cautions.
Calendar boundary
These calendars explain public source dates. They do not replace tax instructions, financial-aid office notices, state agency pages, school calendars, bank notices, USPS service alerts, or agency-specific operating announcements.
Verification workflow
Use a calendar as the first pass, not the final authority
The calendar hub is designed for scanning. It helps readers find the right tax, holiday, or student aid calendar without opening every guide. That quick scan is useful, but public deadlines can depend on the source family, jurisdiction, year, award cycle, observation rule, or local office. For any real action, the safer workflow is to open the calendar page, then follow the linked guide and official source.
This separation also protects the reader from assuming that all public dates work the same way. IRS dates are about federal tax administration. Federal Student Aid dates are about FAFSA receipt and school or state deadline layers. OPM dates describe federal employee holidays, while USPS and Federal Reserve pages answer different service and banking-calendar questions.
What to do before relying on a calendar date
- Match the year or cycle. A FAFSA award year, tax year, and calendar year can point to different time frames.
- Open the source box. The source box explains where the date came from and when it was last checked.
- Check local layers. Schools, states, branches, post offices, and agency locations can have separate notices.
- Avoid using a hub as advice. The calendar helps organize official-source links; it does not decide eligibility, payments, service availability, or legal deadlines.
Final check
When to leave the hub and open a detailed page
Open the detailed page whenever a date affects a filing, payment, aid application, appointment, mailing plan, travel plan, or branch visit. The hub is intentionally broad, so it cannot show every exception, local notice, award-year rule, or service boundary. The detailed page gives the better context and links the official source path.
For repeat visits, treat this hub as a table of contents. Start here to find the right calendar, then use the linked page to confirm the last verified date and any limits on what the source can answer.