Sec filing deadline calculator

SEC form

Choose the filing type you want to estimate.

Period end date

For 10-K, use the fiscal year-end date. For 10-Q, use the fiscal quarter-end date.

Filer status

Needed only for Form 10-K and Form 10-Q deadlines.

Optional manual settings

Add Form 12b-25 extension

Use only when a late filing notification is available and appropriate.

Manual adjustment days

Optional. Add or subtract days for a special situation. Example: enter 2 or -1.

Deadline result

Estimated filing due date

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Enter a date to calculate the deadline.

Calculation summary

SEC form —

Period end date —

Filer status —

Base deadline rule —

Base due date —

Extension added —

Manual adjustment —

Simple explanation

The calculator will show how the deadline is estimated after you enter a date.

Important note

This calculator is for general deadline estimation only. SEC deadlines can vary because of filing type, issuer status, specific rule text, EDGAR cut-off times, holidays, exchange requirements, transition rules, extensions, or special relief. Confirm the final deadline with current SEC rules or a qualified professional before filing.