How to Calculate Military Retirement Pay for Divorce

To calculate military retirement pay for divorce, you freeze the service member’s pay grade and years of creditable service as of the divorce date, apply a coverture fraction for the months of marriage that overlapped military service, and then split that marital share against the member’s disposable retired pay. Cost-of-living adjustments between the divorce and retirement are added back on top. The formula is set by federal law, and the numbers only work if the court order uses the categories the Defense Finance and Accounting Service (DFAS) recognizes.¹

The Frozen Benefit Formula

For divorces finalized on or after December 23, 2016, where the member has not yet retired, federal law requires the divisible benefit to be calculated on the member’s pay grade and creditable years of service at the time of the divorce, not at retirement.² This is the Frozen Benefit Rule. Promotions and longevity raises the member earns after the divorce belong to the member alone.

The court then applies a coverture fraction: months of marriage that overlapped military service, divided by the member’s total months of creditable service at divorce.² That fraction identifies the marital share. The court decides how to divide that share between the parties. A 50/50 split is common but not required.

A Worked Example

Assume the member is an E-7 with 16 years of service at the divorce date, and 12 of those years overlapped with the marriage. The coverture fraction is 12/16, or 75%. A 50/50 division of that marital share gives the former spouse 37.5% of the frozen benefit. That percentage is then applied against disposable retired pay when the member actually retires, adjusted upward for COLAs.

What Counts as Disposable Retired Pay

The percentage does not apply to the member’s gross retirement check. It applies to “disposable retired pay,” which under 10 U.S.C. § 1408 is total monthly retired pay minus four specific deductions:³

Debts owed to the federal government, including overpayments and legally required recoupments.
Court-martial forfeitures, and amounts waived so the member can receive VA disability compensation or other federal benefits.
For members retired under disability provisions, the amount attributable to the disability rating at retirement.
Survivor Benefit Plan premiums, when the annuity is payable to a spouse or former spouse who is already receiving a portion of the retired pay.

Federal and state income tax withholdings are not deducted before the calculation. Congress removed tax withholdings from the statutory definition in 1990.³ The divisible base is therefore larger than the member’s take-home pay.

COLAs and How the Award Is Expressed

The frozen benefit is not permanently stuck at the dollar value as of the divorce date. The statute increases the frozen amount by cost-of-living adjustments that accumulate between the divorce and the member’s actual retirement, and by COLAs after retirement.³

How the court order expresses the award changes what the former spouse actually receives over time. A percentage of disposable retired pay automatically captures a proportionate share of those COLAs unless the order says otherwise.⁴ A fixed dollar amount stays flat and loses value against inflation unless the court later modifies it. For a former spouse, a percentage-based award is generally more favorable for that reason.

How VA Disability Waivers Shrink the Result

The single biggest variable that can reduce a former spouse’s share after the divorce is a VA disability waiver. When a retiree waives a portion of retired pay to receive tax-free VA disability compensation, the waived amount is no longer disposable retired pay and drops out of the divisible pot. VA disability benefits are the member’s separate property and cannot be divided.

A member can receive a disability rating after the divorce, waive retired pay, and reduce the former spouse’s monthly payment without any further court involvement. In Howell v. Howell (2017), the U.S. Supreme Court held that state courts cannot order a veteran to indemnify a former spouse dollar-for-dollar for a reduction caused by a post-divorce disability waiver, and that such orders are preempted by federal law regardless of whether they are labeled “reimbursement” or “indemnification.”⁵

Howell left one door open. Family courts can account for the possibility of a future disability waiver when initially dividing property, or they can adjust spousal support to compensate for the lost retirement income.⁵ Some state supreme courts have also enforced voluntary indemnification agreements the parties negotiated in a property settlement, reasoning that federal law limits what a court can impose but not what a veteran can promise by contract.

CRDP and CRSC

Two federal programs push disposable retired pay in opposite directions after retirement. Concurrent Retirement and Disability Pay (CRDP) lets qualifying retirees with a VA rating of 50% or higher receive both retired pay and disability compensation without a dollar-for-dollar offset. When a retiree receives CRDP, the VA waiver decreases and disposable retired pay increases, which increases the former spouse’s share.⁶

Combat-Related Special Compensation (CRSC) runs the other way. CRSC is a separate, non-taxable payment for combat-related disabilities and is not subject to division under the Uniformed Services Former Spouses’ Protection Act. A retiree eligible for both programs can elect CRSC at any time. If a retiree switches from CRDP to CRSC, the former spouse’s payments can decrease or stop because the amount classified as disposable retired pay can shrink significantly.⁶

Blended Retirement System Members Have Two Assets, Not One

Service members who entered the military on or after January 1, 2018, are enrolled in the Blended Retirement System (BRS). The BRS pension uses a 2.0% multiplier per year of service instead of the legacy High-3 system’s 2.5%, so the defined-benefit pension at 20 years is 40% of base pay rather than 50%.⁷ Using the wrong multiplier in a projection overstates the marital share.

The BRS offsets the smaller pension with automatic and matching Thrift Savings Plan (TSP) contributions. The government contributes 1% of basic pay automatically and matches up to an additional 4% of voluntary contributions, for a potential government contribution of 5%.⁷ Dividing only the pension in a BRS divorce leaves a real portion of the retirement benefit on the table.

The TSP requires its own court order, a Retirement Benefits Court Order (RBCO), separate from the order dividing the pension. The RBCO must name the “Thrift Savings Plan” specifically, identify which account (civilian or uniformed services) is being divided, express the award as a dollar amount or percentage, and include an entitlement date to value the account. The TSP rejects orders that use vague terms like “federal benefits” or “thrift savings account” instead of the exact plan name. The order can specify whether to include or exclude earnings and losses between the entitlement date and the transfer date, and whether to count outstanding loan balances against the account before the award is calculated.⁸

SBP Keeps the Calculation Alive After Death

Military retirement pay stops when the retiree dies. Any calculated share stops with it unless the court order awards Survivor Benefit Plan (SBP) coverage. The SBP annuity pays 55% of the elected base amount to the surviving beneficiary. The premium is 6.5% of the chosen base amount, deducted from the retiree’s gross pay before disposable retired pay is calculated.⁹ That premium reduces the divisible base, so SBP effectively costs the former spouse a portion of monthly income in exchange for lifetime security.

If the court awards SBP coverage but the member does not make the election, the former spouse has one year from the date of the court order to submit DD Form 2656-10 to DFAS requesting a “deemed election.”¹⁰ Missing the one-year deadline can permanently forfeit coverage.

The 10/10 Rule Is About Who Cuts the Check, Not the Calculation

DFAS will only send direct payments to a former spouse if the marriage lasted at least 10 years and at least 10 of those years overlapped with creditable military service. This is the 10/10 Rule, and it is widely misunderstood. It controls whether DFAS is the payer. It has nothing to do with whether the former spouse is entitled to a share of the pension. A court can award retirement pay to a former spouse after a five-year marriage; the calculation runs the same way. DFAS simply will not be the one writing the check, and the member has to pay directly.

Payment Caps on the Calculated Share

Federal law caps DFAS property-division payments at 50% of the member’s disposable retired pay. If the former spouse also collects court-ordered alimony or child support from the same retired pay, the combined cap rises to 65%.¹ A coverture-and-split calculation that produces a share above 50% will be paid by DFAS only up to the cap, with any excess left to be collected from the member directly.