Free educational tool · 2026 rates
VA back pay calculator
Compare two disability ratings using VA’s rates effective December 1, 2025. This is a rough planning estimate, not an entitlement decision or payment promise.
Monthly difference
$675.55
Illustrative total
$8,106.60
Rate comparison
$1,132.90 → $1,808.45
Uses one current 2026 monthly rate for every selected month. It does not calculate historical COLA changes or establish an effective date.
Before you rely on the number
Is your effective date wrong?
Back pay depends on the effective date more than anything else. A date that is a year or two too late can cost thousands of dollars. Common effective-date errors to check:
- VA used the date of a later claim instead of an earlier claim or intent to file that it never decided
- The claim was filed within a year of separation, but VA didn't use the day after discharge
- You appealed on time, but VA treated the later filing as a new claim and reset the date
- Records showed the condition worsened before the claim date, and VA didn't consider up to one year earlier for an increase (38 CFR 3.400(o)(2))
- Service records VA received later existed all along, which can support the original claim date (38 CFR 3.156(c))
An error in a final decision can sometimes be corrected later as clear and unmistakable error (38 CFR 3.105(a)), but that standard is demanding. Checking within the one-year review window is much easier.
2026 monthly rates
Effective December 1, 2025. Dependent amounts apply at 30% and above.
| Rating | Veteran alone | With spouse | Spouse and one child |
|---|---|---|---|
| 10% | $180.42 | $180.42 | $180.42 |
| 20% | $356.66 | $356.66 | $356.66 |
| 30% | $552.47 | $617.47 | $666.47 |
| 40% | $795.84 | $882.84 | $947.84 |
| 50% | $1,132.90 | $1,241.90 | $1,322.90 |
| 60% | $1,435.02 | $1,566.02 | $1,663.02 |
| 70% | $1,808.45 | $1,961.45 | $2,074.45 |
| 80% | $2,102.15 | $2,277.15 | $2,406.15 |
| 90% | $2,362.30 | $2,559.30 | $2,704.30 |
| 100% | $3,938.58 | $4,158.17 | $4,318.99 |
How VA back pay works
How does VA calculate back pay?
VA pays from the effective date of the award. Payment starts on the first day of the month after the effective date (38 CFR 3.31). Back pay is the monthly rate for each month from then until VA starts paying the new amount, using the rate in effect for each period, minus anything already paid for the same months.
What decides the effective date?
Usually the later of the date VA received the claim or the date the condition arose (38 CFR 3.400). An intent to file can lock in an earlier claim date if the full claim follows within one year (38 CFR 3.155). A claim filed within one year after leaving service can reach back to the day after separation.
Does appealing keep my original effective date?
It can. If you file a Higher-Level Review, Supplemental Claim, or Board appeal within one year of each decision and keep the issue moving, VA can keep the date of the original claim (38 CFR 3.2500(h)). Missing a deadline usually moves the date forward to the new filing.
Why might my real back pay differ from this estimate?
Rates change each December with cost-of-living adjustments, ratings can be staged over time, dependents change the rate at 30% and above, and offsets such as military retired pay or severance can reduce what VA pays.
A worked example
Say VA grants a 30% rating with an effective date of March 15, 2025. Payment starts the first day of the next month, April 1, 2025 (38 CFR 3.31). Back pay then covers each month from April 2025 until VA starts paying the new amount, at the rate in effect for each month: the rate set December 1, 2024 through November 2025, and the 2026 rate from December 1, 2025. If VA was already paying a lower rating for those months, only the difference is owed.
Move the effective date back a year and the back pay grows by about a year of payments. That is why the date on the award is worth checking line by line.
Educational estimate only, not legal advice. ClaimScope is independent of VA and does not guarantee a rating, effective date, award, or payment amount. Rates checked October 12, 2026.