The Intent to File (VA Form 21-0966): Protecting Your Effective Date
What it is
An Intent to File is a short notice telling VA that you plan to file a claim. It is not a claim. It asks for no medical evidence, no diagnosis, no description of your condition — just your identity and the type of benefit you intend to claim.
What it buys you is time, and time is money here.
The effective date mechanic — why this matters more than it sounds
VA pays disability compensation retroactively back to your effective date. Without an Intent to File on record, your effective date is the day VA receives your completed claim. With one, your effective date becomes the day VA received your Intent to File — potentially up to a year earlier.
Put concretely: if you file an Intent to File in January and submit your finished claim in October, an approval pays you back to January, not October. Those nine months of back pay exist only because of a one-page form you filed before you had any evidence at all.
Skip it, and you've given up that money for no reason other than paperwork sequencing. There is no downside to filing one and no cost to filing one, which is why it should be the first thing you do the moment you're seriously considering a claim.
The one-year clock
Once VA receives your Intent to File, you have one year to submit your completed claim. File within that window and your effective date holds.
Miss it and the Intent to File expires. There's no penalty beyond losing the earlier effective date — you can simply file a new Intent to File and start a fresh year — but whatever back pay the original date would have covered is gone.
Once you do file your completed claim, the Intent to File becomes inactive. It has done its job.
How to submit one — four ways
Online (fastest, and partly automatic). Sign in to VA.gov with your verified account and either submit the Intent to File directly, or simply start and save VA Form 21-526EZ — saving a started disability compensation application automatically creates an Intent to File for you. If you take this route you don't need to file Form 21-0966 separately.
By phone. Call VA at 1-800-827-1000 (TTY: 711), Monday through Friday, 8:00 a.m. to 9:00 p.m. ET, and tell them you're filing an intent to file. Ask for a reference number and write it down.
By mail. Complete VA Form 21-0966 and mail it to the address printed on the form. Send it certified mail with return receipt — your effective date is the date VA receives it, not the date you mailed it, so you want documented proof of delivery. This is the single most common place people lose an effective date they thought they had.
In person. Submit it at a VA regional office, or have an accredited VSO or claims agent submit it with you.
Rules that trip people up
You can only hold one active Intent to File at a time for a given benefit type. Filing a second one while the first is still running doesn't stack or extend anything.
Different benefit types need their own Intent to File. Form 21-0966 covers disability compensation, pension, and Dependency and Indemnity Compensation (DIC) — but each establishes its own separate effective date. An Intent to File for compensation does not protect a pension claim, and vice versa.
The automatic online Intent to File has exceptions. Starting an application online does not create an automatic Intent to File for DIC applications, or for non-disability Supplemental Claims. For those, file the Intent to File deliberately rather than assuming the system did it for you.
It covers conditions you haven't thought of yet. An Intent to File isn't tied to a specific condition, so the effective date it protects applies to whatever conditions end up in the claim you eventually file. You don't need to know your full list of claimed conditions on day one — which is precisely why filing early costs you nothing.
Practical guidance
File it today, not when you're ready. The whole design of this form is to let you start the clock before you're prepared. Waiting until you have your evidence assembled defeats the purpose entirely.
Confirm it landed. Online, check that it appears in your VA.gov account. By phone, get the reference number. By mail, keep the return receipt. An Intent to File you can't prove is an Intent to File you may not have.
Calendar the deadline the day you file. One year, from the date VA received it — not from the date you mailed it. Set the reminder for ten months out so you have working room, not the day before.
Use the window. The point of the year isn't to procrastinate, it's to build a claim properly — get the relevant DBQ completed, gather treatment records, write a lay statement. You get the early effective date and the stronger claim. That's the entire trade this form exists to offer.
What's next
With your effective date locked in, move to the VA Form 21-526EZ explainer — that's the actual claim application, and the thing that has to land inside your one-year window.
Sources: VA — Your intent to file a VA claim; VA — Intent to file form for certain VA benefit claims (21-0966); VA — Submit an intent to file online