Add up the retroactive pay VA owes you, month by month, at each year's real rates
Dependents are assumed constant across the whole back-pay period. If your family changed mid-claim (marriage, a child turning 18), split the estimate into two runs. Dependents add nothing at 10% or 20%.
| Rating | 2023 rates (from Dec 1, 2022) | 2024 rates (from Dec 1, 2023) | 2025 rates (from Dec 1, 2024) | 2026 rates (from Dec 1, 2025) |
|---|---|---|---|---|
| 10% | $165.92 | $171.23 | $175.51 | $180.42 |
| 20% | $327.99 | $338.49 | $346.95 | $356.66 |
| 30% | $508.05 | $524.31 | $537.42 | $552.47 |
| 40% | $731.86 | $755.28 | $774.16 | $795.84 |
| 50% | $1,041.82 | $1,075.16 | $1,102.04 | $1,132.90 |
| 60% | $1,319.65 | $1,361.88 | $1,395.93 | $1,435.02 |
| 70% | $1,663.06 | $1,716.28 | $1,759.19 | $1,808.45 |
| 80% | $1,933.15 | $1,995.01 | $2,044.89 | $2,102.15 |
| 90% | $2,172.39 | $2,241.91 | $2,297.96 | $2,362.30 |
| 100% | $3,621.95 | $3,737.85 | $3,831.30 | $3,938.58 |
Each column is the official VA table for that rate year (3.2%, 2.5%, and 2.8% COLAs along the way). A back-pay period spanning a December 1 switches tables mid-claim, which is exactly what the calculator above does.
| Rate year | Months | Monthly rate | Subtotal |
|---|---|---|---|
| 2024 (Mar–Nov 2024) | 9 | $1,716.28 | $15,446.52 |
| 2025 (Dec 2024–Nov 2025) | 12 | $1,759.19 | $21,110.28 |
| 2026 (Dec 2025–Aug 2026) | 9 | $1,808.45 | $16,276.05 |
| Total back pay | 30 | — | $52,832.85 |
Single veteran, original claim filed and effective March 2024, decision processed with the first correct payment in September 2026. With a spouse and one child the same dates pay $60,602.85.
| Situation | Effective date | Rule |
|---|---|---|
| Original claim, granted | Date VA received the claim | 38 U.S.C. § 5110(a)(2) |
| Intent to file filed first (Form 21-0966) | Up to 1 year before the claim itself | 38 U.S.C. § 5110(b)(2) |
| Claim for increase | Later of claim receipt or the date the condition met the higher criteria | 38 CFR 3.400(o)(2) |
| Reopened after denial, new evidence | Date of the earlier claim | 38 CFR 3.156(c) |
| Granted on appeal (Board or higher) | Generally the original claim date | 38 CFR 20.1104 / § 5110 |
The intent-to-file rule is the easiest money to leave on the table: filing the one-page form starts your clock up to a year early, before you've gathered any evidence.
When VA grants or increases a rating, it doesn't just start paying the new amount going forward. It owes you every month back to the effective date at the rate that should have applied, minus whatever it already paid you. That difference, stacked across years of COLA changes, is your back pay.
For each month m from the effective date through the month before VA starts paying correctly: monthly owed = pay(new rating, dependents, rate year of m) − pay(old rating, dependents, rate year of m). The rate year of a month flips each December 1, when the COLA-adjusted tables take effect. Back pay is simply the sum. On increase claims the old rating subtraction is what makes the result a difference, not a double payment.
Pull two dates off your rating decision: the effective date printed in the award section, and the month your deposits first reflected the new amount (usually the month after the decision processed). Set the new combined rating, and if VA had already been paying you at a lower rating during the wait, set that too — the calculator subtracts it, because that's what VA actually does. The breakdown shows each rate year, its months, its monthly rate, and its subtotal, so you can check the total against your own deposit.
A veteran files in March 2024, gets decided in late August 2026, and the first correct payment lands in September 2026 at a new 70% rating. Back pay runs March 2024 through August 2026: 30 months. Nine of them sit in the 2024 rate year at $1,716.28, twelve in the 2025 year at $1,759.19, and nine in the 2026 year at $1,808.45. The lump sum: 9 × $1,716.28 + 12 × $1,759.19 + 9 × $1,808.45 = $52,832.85, tax-free.
Same veteran had been paid at 30% for years, filed for an increase in March 2023, and was granted 50% effective that March. VA pays the difference for each month: $533.77/mo through November 2023, then $550.85, $564.62, and $580.43 as each December 1 COLA raised both tables. Over 42 months that's $23,413.44 — on top of the 30% payments he was already receiving the whole time.
Back pay is the sum, month by month, of the difference between what VA should have paid you and what it actually paid, from your effective date up to the month VA starts paying you correctly. Each month is valued at the rate table in effect during that month, so a long-running claim spans several COLA increases. A single veteran granted 70% effective March 2024 and first paid correctly in September 2026 is owed $52,832.85: nine months at the 2024 rate of $1,716.28, twelve at the 2025 rate of $1,759.19, and nine at the 2026 rate of $1,808.45.
The general rule is the date VA received your claim. An intent to file (VA Form 21-0966) holds your place for up to one year before the real claim arrives, so the effective date can predate the claim by as much as 12 months. There is no cap on the number of months a granted claim can pay retroactively; appeals that take years still pay back to the effective date.
Usually, yes. After VA processes the rating decision, the retroactive amount is deposited as a single payment, separate from and larger than your regular monthly deposit. On increase claims, the lump sum is the accumulated difference between the old and new rates, not the full new rate.
No. VA disability compensation, including retroactive payments, is tax-free at the federal level and in every state. You will not receive a 1099 for it, and a multi-year lump sum does not push you into a higher tax bracket because it is never taxed in the first place.
For an increase claim, the effective date is either the date VA received the increase request or the date your condition actually worsened to meet the higher rating criteria, whichever is later. That second prong is why exams matter: a compensation exam documenting severe symptoms a year before your claim can move the effective date earlier.
Both. Each back-paid month is valued at the rate that was in effect during that specific month. The VA rate tables change every December 1 with the COLA, so a claim pending across three Decembers pays three different monthly amounts. This calculator switches tables automatically at each December 1 boundary.
Estimate only. This calculator applies the published VA rate tables for rate years 2023–2026 (effective December 1, 2022 through November 30, 2026) and assumes your dependents and ratings stayed constant across the back-pay period. It isn't affiliated with or endorsed by the Department of Veterans Affairs, and your award letter — not this page — states the official effective date and amounts. Nothing here is legal advice; for a contested effective date, a VSO representative or accredited attorney is the right stop.