VA Effective Dates: The Single Most Expensive Thing Veterans Get Wrong
Your effective date determines when your compensation starts. Every month between when it SHOULD start and when it DOES start is money the VA keeps. One wrong effective date on a 70% rating costs $1,808/month. A two-year error costs $43,402. This guide covers how effective dates work and how to get the earliest possible date.
The General Rule
Under 38 C.F.R. 3.400, the effective date for an original claim for compensation is the date the VA receives the claim OR the date entitlement arose, whichever is LATER. For most veterans, this means the effective date is the date you filed your claim — not the date your condition started, not the date you left service, and not the date of your diagnosis.
38 C.F.R. 3.400 (General Effective Date Rules); 38 U.S.C. 5110The BDD Exception (Best Effective Date)
Benefits Delivery at Discharge (BDD) allows active duty service members to file a VA claim 180-90 days before separation. The effective date for a BDD claim is the day after discharge — the earliest possible effective date for any VA claim. If you are still on active duty and within 180 days of separation, BDD is the single most valuable thing you can do for your claim.
38 C.F.R. 3.400(b)(2); M21-1, Part III.iv.7.BWhy BDD Matters Financially
A veteran rated 80% who files through BDD gets an effective date the day after discharge. A veteran rated 80% who waits 6 months after discharge to file loses approximately $12,612.90 in retroactive pay (6 months at $2,102.15/month). A veteran who waits 2 years loses $50,451.60. BDD costs nothing and takes one appointment. There is no legitimate reason not to file BDD if you are eligible.
Increases: The Factually Ascertainable Rule
For claims for increase, the effective date is the date the VA receives the claim OR the date it is factually ascertainable that an increase in disability occurred, whichever is LATER — BUT with a critical exception: if the increase is factually ascertainable within ONE YEAR BEFORE the date of claim, the effective date can be the date of the increase, not the date of claim.
38 C.F.R. 3.400(o)(2); M21-1, Part III.iv.7.AExample: Your back condition worsened in January 2025 (documented by a private doctor visit). You filed for increase in June 2025. Under 3.400(o)(2), your effective date could be January 2025 — the date the increase was factually ascertainable — because it is within one year of your claim date. This gets you 5 extra months of retroactive pay at the increased rate.
Supplemental Claims: Intent to File
Filing an Intent to File (VA Form 21-0966) establishes a placeholder effective date for up to one year. This is critical when you need time to gather evidence. The Intent to File date becomes your effective date if you file the complete claim within 12 months. Every veteran should file an Intent to File immediately, even if they are not ready to submit the full claim.
38 C.F.R. 3.155 (Intent to File)Common Effective Date Errors
The most common VA effective date errors include: assigning the C&P exam date instead of the claim receipt date, failing to recognize an informal claim or Intent to File, ignoring factually ascertainable evidence within the one-year lookback period, and assigning the date of the rating decision instead of the date entitlement arose. If your effective date seems wrong, compare it against 38 C.F.R. 3.400 and the date your claim or Intent to File was received.