How to File a VA Disability Claim Explained

A claim needs three things: a current diagnosed condition, an in-service event or exposure, and a medical link between them. That link — the nexus — is what most denials turn on.

The mechanism most people do not use is Intent to File. Submitting one locks in your effective date and gives you up to one year to complete the claim. Because the effective date decides how far back your payments run, filing an Intent to File on day one and taking months to assemble evidence can be worth thousands.

Two things make a claim materially easier:

  • Presumptive conditions. If your condition is presumptive for where and when you served, you do not have to prove the nexus at all. Check the PACT Act lists before assuming you need a nexus letter.
  • Filing before you separate. Benefits Delivery at Discharge lets you file 180 to 90 days out and have a decision near your discharge date.

Expect a Compensation and Pension (C&P) examination. Attending it matters — a missed exam usually means a decision on the evidence available, which is rarely in your favor.

Who is eligible?

Veterans and serving members with a condition caused or aggravated by service, and a discharge that is not dishonorable.

The condition can have appeared before, during or after service. A pre-existing condition that service made worse is claimable for the worsening.

There is no deadline to file. But the effective date generally follows your filing date, so waiting costs back pay rather than entitlement.

Evidence that helps: service treatment records, current medical records, a nexus letter from a treating clinician where the link is not presumptive, and buddy statements where records are thin — which is common for events that were never formally reported.

How do I apply?

  • File an Intent to File on day one: It protects your effective date and gives you a year to complete the claim. This is the cheapest thing you can do.
  • Check the presumptive lists before writing a nexus: If your condition is presumptive for your service, you do not need to prove the link.
  • File before you separate if you can: BDD, at 180 to 90 days out, gets you a decision near your discharge date.
  • Attend the C&P exam: A missed exam means a decision on what the VA already has.
  • Use buddy statements where records are thin: Unreported events are common, and a corroborating statement carries real weight.
  • Never pay a share of back pay to file an initial claim: Accredited VSOs do this free, and they are usually better at it.

Common questions

Is there a deadline to file a VA disability claim?

No. But your effective date generally follows your filing date, so waiting costs back pay rather than entitlement.

What is an Intent to File?

A filing that locks in your effective date and gives you up to a year to complete the claim — so you can gather evidence without losing back pay.

What is a nexus?

The medical link between your service and your current condition. It is what most claims turn on, and presumptive conditions remove the need to prove it.

Do you have to attend the C&P exam?

Effectively yes. Missing it usually means a decision on the evidence already held, which rarely helps you.

Should you pay someone to file a claim?

No. Accredited VSOs help free of charge, and you should never pay a percentage of back pay for an initial claim.

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