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Iowa LLC · Step 6 of 8 · Verified June 2026

Iowa LLC Biennial Report — Step 6 of 8

Iowa's compliance filing is genuinely unusual: it's only ever due in odd-numbered years, on a fixed calendar window — not tied to your LLC's anniversary date at all.

Ahmad Adil Written & verified by Ahmad Adil, LLC School·Updated June 2026
Quick Answer

Every Iowa LLC files a Biennial Report only during odd-numbered years, between January 1 and April 1 — a fixed calendar window that has nothing to do with your LLC's formation anniversary. It costs $30 filed online, or $45 by mail. If your LLC formed in an even year, you'll have zero compliance filings due until the following odd year.

Step 6 — Fast Facts
Frequency
Odd years only
Fee (online)
$30
Fee (mail)
$45
Filing window
Jan 1 – Apr 1
Tied to anniversary?
No
Even-year LLCs
Nothing due that year
Next step
Step 7 →

What Iowa's Biennial Report Involves

Iowa's compliance filing is structured differently from almost every other state — it's tied to the calendar, not your LLC's birthday:

  • Fee: $30 online, $45 by mail — one of the lower compliance filing costs in the country.
  • Only due in odd-numbered years — 2025, 2027, 2029, and so on. There's no filing requirement at all in even years, regardless of when your LLC formed.
  • Fixed filing window: January 1 – April 1 — every LLC in Iowa files during the same window, unlike most states' anniversary-month systems.
  • Filed with: the Iowa Secretary of State through Fast Track Filing, or by mail.
  • Reminders sent to your registered agent — keeping your agent information current is your best safeguard against missing this every-other-year window.

Odd-Year Report Deadline Calculator

Enter your LLC's formation date to see your first Biennial Report window:

Odd-Year Report Deadline Calculator
Fixed Jan 1–Apr 1 window, odd years only
Your Formation Year
—
First Filing Window
—
January 1 – April 1 of your first odd-numbered year
After that, this report repeats every 2 years, always in an odd-numbered year, Jan 1–Apr 1.
Iowa LLC owner filing the Biennial Report online through Fast Track Filing

How to File

  • File online through Fast Track Filing for instant processing and the cheapest rate, $30.
  • Review your information — confirm your LLC's name, registered agent, and mailing address are still accurate.
  • Or file by mail for $45, if you'd rather not use the online portal.
  • File any time within the Jan 1–Apr 1 window — no advantage to filing on January 1 over March 31, as long as it's submitted before the deadline.
  • Missing the window risks dissolution — unfiled LLCs can eventually be administratively dissolved by the Secretary of State.

The calendar-fixed window is the detail that trips people upMost states use an anniversary-month system, so people naturally assume Iowa works the same way. It doesn't — every LLC in the state, regardless of formation date, files during the exact same Jan 1–Apr 1 window in odd years only. Mark this window on your calendar every other year rather than tracking your formation date.

Ahmad Adil's Take: Iowa's fixed calendar window is genuinely one of the simplest reporting systems we've reviewed once you understand it — everyone files during the same three-month stretch every other year, so there's no anniversary math to track. The tradeoff is that if you form your LLC late in an odd year, you might feel like you barely missed the window and now have to wait almost two full years for the next one. That's normal; just budget for it.
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Frequently Asked Questions

Iowa Biennial Report — FAQ

How often is Iowa's Biennial Report due?
Only during odd-numbered years, filed between January 1 and April 1. There's no filing requirement at all in even years.
How much does Iowa's Biennial Report cost?
$30 if filed online, or $45 by mail.
Is Iowa's Biennial Report due on my LLC's anniversary date?
No — unlike most states, Iowa's report is due during a fixed calendar window (January 1 to April 1 of odd-numbered years), regardless of when your LLC was formed.
What happens if I miss the Biennial Report deadline in Iowa?
Your LLC's report becomes past due after April 1, which puts your LLC at risk of losing good standing and eventual administrative dissolution if left unresolved.
Can I file Iowa's Biennial Report online?
Yes — through Fast Track Filing, the fastest and cheapest way to file, or by mail.
Does my LLC owe anything if it formed in an even year?
No compliance filing is due until the next odd-numbered year. An LLC formed in an even year has no Biennial Report obligation until then.
Does Iowa send reminders before the report is due?
Reminders are typically sent to your registered agent's address ahead of the filing window, which is why keeping that information current matters.
Ahmad Adil, founder of LLC School
About the Author
Ahmad Adil

Ahmad Adil is the founder and CEO of LLC School. The guidance here — the $30/$45 fee structure, the odd-year-only filing cycle, and the fixed Jan 1–Apr 1 window — reflects current Iowa Secretary of State guidance. This is educational information, not legal advice.

About Ahmad Adil → Iowa LLC Overview →
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