Annual Benefits and Tax Deadline Calendar for Diaspora Households
Month-by-month calendar of Medicare enrollment windows, employer open enrollment, tax deadlines, and SSA notices so bilingual families miss fewer government clocks.
Key takeaways
- Medicare and employer enrollment windows are narrow and repeat yearly.
- Tax season starts in January, not April.
- SSA COLA notices arrive in fall; siblings should share them.
- Put deadlines in a shared calendar with named owners.
Your family runs on three calendars: U.S. payroll, parent Medicare mail, and tax season dread. They do not sync. You find the Part D compare window the week after it closes because nobody put it on the same fridge chart as W-2 season.
A single planning calendar will not fix bureaucracy. It will stop half the surprises that become your fault at dinner.
Federal benefits and tax anchors (typical year)
Verify annually. State taxes and employer plans may differ.
| Window | Typical timing | Who owns it |
|---|---|---|
| Employer open enrollment | Nov – Jan (many employers) | You + HR |
| Medicare Initial Enrollment | 7 months around 65th birthday | Parent + sibling |
| Medicare Annual Election Period | Oct 15 – Dec 7 | Parent + sibling |
| Federal tax filing | Apr 15 (or extension) | You / CPA |
| SSA COLA notice | October announcement | Sibling on parent budget |
Source: Medicare.gov enrollment periods; IRS filing calendar; SSA COLA announcements
Estimated tax payment quarters (self-employed)
Applies when you owe estimated taxes. W-2-only households often skip this block.
| Quarter | Typical due date | Note |
|---|---|---|
| Q1 | April 15 | Pairs with annual return deadline |
| Q2 | June 15 | Mid-year check on side income |
| Q3 | September 15 | Before holiday spending spikes |
| Q4 | January 15 (next year) | Plan before year-end |
Source: IRS: Estimated taxes
How to use this calendar
Copy rows into Google Calendar, iCal, or a paper chart on the fridge. Assign one sibling owner per stream: Medicare parent, employer benefits (you), tax folder, SSA mail.
Confirm dates each October on official sites. Congress and employers occasionally shift windows.
January through March
January: W-2s and 1099s begin arriving. Open the tax folder from Tax Paperwork Basics for Diaspora Households.
January 1 – March 31: Medicare Advantage Open Enrollment Period for people already in Advantage who want to switch plans.
April 15 area: Individual federal tax filing deadline (or extension request). Estimated tax Q1 payment for self-employed households.
Any month: Special enrollment periods after job loss or move may open marketplace coverage for parents under 65.
April through June
April – June: Estimated tax payments Q2 (if applicable).
Spring: Review parent medication lists before summer travel. Update the document folder.
Mid-year: Check 401(k) deferral rate after bonus season. Use When Your Income Jumps: Revisit Family Support and Savings.
July through September
July – September: Estimated tax Q3 (if applicable).
Three months before 65: Mark Medicare Initial Enrollment Period on the calendar if a parent turns 65 this year.
Quarterly sibling check-in: Use Quarterly Sibling Check-In for Family Money to align support and admin roles.
October through December
October: Social Security announces COLA adjustments for the following year. Share the notice with siblings who help with parent budgets.
October 15 – December 7: Medicare Annual Election Period for Part D and Advantage changes.
November – January (typical): Employer open enrollment for your own benefits. Missing it often locks coverage until next year.
December: Last chance for many tax moves (charitable gifts, FSA use-it-or-lose-it rules vary by employer).
Remittance and family-support dates that are not on IRS forms
Festival seasons, lease renewals abroad, and school fee deadlines are family calendars, not government ones. They still collide with open enrollment.
Average holiday remittance spikes into monthly budget lines.
Use the Family Support Budget Calculator when October enrollment choices compete with December wires.
Twenty-minute annual setup (do this in October)
1. Export official deadlines from Medicare.gov and your employer HR page. 2. Add SSA and tax dates from the table below. 3. Assign sibling owners. 4. Store in the shared parent folder. 5. Set one recurring quarterly review.
Done beats perfect. Perfect is why the Part D window closed last year.
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Sources & further reading
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