How the casual filing frequency works

Updated 28 days ago

Some states assign your sales tax account a filing frequency called casual. Unlike monthly, quarterly, or annual schedules, a casual frequency does not create a recurring obligation. Understanding how it works helps you avoid two costly mistakes, missing a return for a period that had sales, and filing returns you never needed to file.

Quick Summary

Casual means the state has not assigned your account a fixed, recurring filing schedule
You only file a return for a period that actually had taxable activity in that state
Periods with no sales do not require a return and do not become delinquent
State portals still lay out casual accounts in monthly periods, so each month appears as its own filing row
Kintsugi maps casual accounts to a regular frequency in the platform, usually monthly, so every period with activity is picked up and filed on time

What a casual frequency means

Most sales tax accounts carry a fixed schedule. A monthly account owes a return every month, and a quarterly account owes one every quarter, even for periods with zero sales. A casual account works differently. The state expects a return only when there is something to report. If your business had no sales into the state during a period, no return is due for that period, and the account does not fall behind.

State representatives sometimes describe this as filing "when needed." West Virginia is one state that uses a casual frequency, and other states may apply similar treatment under different names.

Why the portal still shows monthly periods

A casual frequency can look confusing in a state portal. Even though there is no recurring obligation, the portal typically organizes the account into monthly periods, so you see a filing row for every month. Those rows are placeholders, not due returns. A row only becomes a real obligation if the month it covers had taxable activity.

This is why a casual account is sometimes mistaken for a monthly account, or why a business that files quarterly on a casual account may believe the state has them on a quarterly schedule when it does not.

How Kintsugi handles casual accounts

Kintsugi's platform tracks filings against a regular frequency, so casual accounts are mapped to a fixed schedule in the app. In most cases that schedule is monthly, because casual periods are laid out by month in the state portal. A monthly setup lines each platform period up one to one with the portal, so every month with activity gets picked up and filed in the correct period.

There is one important exception. If the state has directly instructed you to file on a specific schedule, for example because of a frequency change notice on file for your account, that instruction takes priority. Tell us what the state directed, and we will set your platform frequency to match.

	Regular frequency (monthly, quarterly, annual)	Casual frequency
Who assigns it	The state, based on your sales volume	The state, typically for low or irregular volume accounts
When a return is due	Every period, even with zero sales	Only for periods with taxable activity
Zero-sales periods	A zero-dollar return is usually required	No return is required, and the period does not go delinquent
How it appears in the portal	Periods match the assigned schedule	Usually laid out as monthly periods, each with its own filing row
How Kintsugi sets it up	Matches the assigned frequency	Mapped to a regular schedule, usually monthly, unless the state directs otherwise

What Kintsugi does automatically vs. what you do

Kintsugi handles:

Reviewing your state portal to confirm the frequency the state actually has on file
Setting your platform frequency so casual periods line up with the portal
Preparing and filing returns for every period with activity
Adjusting your platform frequency if the state changes or clarifies your schedule

You handle:

Forwarding any frequency change notices or letters you receive from the state
Letting us know if a state representative directs you to file on a specific schedule
Confirming details about your account history when we spot a mismatch, for example past periods filed on a different schedule than the portal shows

What this article does not cover

This article explains the casual filing frequency as a concept. It does not list which states use casual frequencies, cover the standard frequency types, or explain how to request a frequency change. For the full list of frequency types and how to request a change, see Understanding Your Filing Frequency. For how frequencies are assigned at registration, see US Sales Tax Registrations Explained.

This article is general information about how filing frequencies work, not tax advice for your specific situation.

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