Note: Collective supports two membership tiers with different federal tax filing requirements. This article covers information relevant to the LLCs without an S Corp election.
Why Tax Season Milestones Matter
Navigating tax season as a business owner can often feel like a marathon. Staying ahead of deadlines ensures your business remains in good standing with the IRS and helps you avoid unnecessary penalties. By understanding these key milestones, you can move through the year with confidence, knowing your filings are on track.
Individual Tax Return (Form 1040)
For single-member LLCs without an S Corp election, your business activity is reported at the individual level when you file your Individual Tax Return. As part of your individual return, there will be an additional form attached to your return that will include your business’ profit and loss statement.
Critical Due Dates
| Due Date | Milestone | Your Action Item |
| Mar 31, 2026 | Individual Tax Organizer | Submit your Individual Tax Organizer, all supporting documents, and answer any outstanding questions.
⚠️ Missed the deadline? Your filing will be automatically extended to Oct 15. Any taxes due must still be paid by Apr 15 to avoid penalties. |
| Apr 14, 2026 | Tax Return Final Review & Approval | Final date to approve your tax return draft. |
| Apr 15, 2026 | Filing & Payment Deadline | Pay any taxes due, if applicable. Our team will handle filing the return (once approved) for you. |
Extension Deadlines
- Apr 15, 2026: Deadline to pay any taxes due, regardless of extension.
- Sept 30, 2026: Last day to submit your completed individual organizer and documents.
Oct 15, 2026: The official individual extension filing deadline.
Disclaimer: This content is for informational purposes only and is not legal, financial, or tax advice. Deadlines listed reflect Collective's operational requirements to ensure timely delivery of services. Failure to meet these deadlines may result in delays to your tax filings and IRS penalties and interest, for which Collective is not responsible.