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VA Effective Date Calculator

Learn how the VA decides when your disability benefits start — and why that date controls back pay as much as your rating does.

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VA Effective Date Calculator

Estimate a likely effective date using common filing and entitlement patterns. Not a substitute for your decision letter.

Claim scenario

ITF submitted before the formal claim

ITF date (optional)

Claim received date

Date entitlement arose / increase ascertainable

Decision date (optional)

Estimated effective date

2024-06-01

Claim received: 2024-11-15.
Intent to file on 2024-06-01 appears within a typical 1-year follow-up window (167 days before the claim) — using ITF as the filing anchor.
Date entitlement arose (your input): 2023-01-01.
Educational estimate uses the later of entitlement-arose and filing anchor → 2024-06-01.

Effective dates are rule-specific. Continuous pursuit, liberalizing laws, and newly discovered service records can change the result.

This tool is an educational estimate only — your decision letter controls.

Estimate monthly pay once benefits start

Same shared formula used across the site — dependents, TDIU, and SMC.

Combined / schedular rating

Pay options (shared formula)

TDIU (pay at 100% rate; combined rating still displays)Spouse

Number of children (0–8)

Uses official child / spouse+child tables. School-age (18–23) add-ons are not modeled here — verify those on VA.gov.

Dependent parent (1 parent add-on; two-parent / parent+child combos may differ — verify on VA.gov)SMC-K add-on ($139.87)

SMC level (replaces base pay)

Results

Exact combined

70.0%

Rounds to

70%

Estimated monthly pay

$1,808.45

Pay rating used: 70%

Scenario estimate only — not a VA award. Pending claims: budget to a lower rating until your decision letter arrives.

Rates effective December 1, 2025 (2026 compensation year). Verify on VA.gov veteran compensation rates or SMC rates.

Pay breakdown

Schedular pay at 70% for selected dependents: $1808.45 (rates effective December 1, 2025).
Total estimated monthly pay: $1808.45.

Step-by-step math

Ratings sorted highest to lowest: 70%.
Step 1: Apply 70% to remaining 100.00% efficiency → adds 70.00 points. Combined so far: 70.00%. Remaining: 30.00%.
Exact combined 70.00% rounds to the nearest 10% → 70%.

“What if” simulator

Add a hypothetical new rating and see how combined % and pay change.

New rating to model

Current combined

70%

With new rating

79.0% → 80%

Current pay

$1,808.45

New pay / change

$2,102.15 (+$293.70)

Show simulated step-by-step math

Ratings sorted highest to lowest: 70%, 30%.
Step 1: Apply 70% to remaining 100.00% efficiency → adds 70.00 points. Combined so far: 70.00%. Remaining: 30.00%.
Step 2: Apply 30% to remaining 30.00% efficiency → adds 9.00 points. Combined so far: 79.00%. Remaining: 21.00%.
Exact combined 79.00% rounds to the nearest 10% → 80%.

Why VA effective dates matter

Your rating answers “how much,” but the effective date answers “starting when.” That second question often controls thousands of dollars in back pay. This calculator uses common patterns: a filing anchor (claim or timely intent to file) and the date entitlement arose, then estimates the later of those dates.

After you have a date estimate, run the back pay calculator with your rating from the combined rating tool or pay chart.

Limits of this model

Continuous pursuit, liberalizing laws, and newly discovered service records can change effective dates. Always compare with your decision letter and an accredited VSO. Not affiliated with the VA.

VA Effective Date Calculator