How a Pension’s Marital Share Is Calculated: The Coverture Fraction in Alaska

By the FigureMyTax Editorial Team · How we calculate

Alaska sets no formula, percentage or ceiling for dividing a pension. Retirement benefits acquired during the marriage are divided in a just manner on listed factors, and state plan orders must meet qualified domestic relations order requirements.

What does Alaska say about dividing a pension?

In a divorce judgment, or at any time after, the court may provide for the division between the parties of their property, including retirement benefits, whether joint or separate, acquired only during the marriage, in a just manner and without regard to which party is at fault (AS 25.24.160(a)(4)). The statute sets no formula and no percentage for a pension, and it has no ceiling on what the other spouse may receive.

Which factors guide the division?

The division must fairly allocate the economic effect of divorce based on nine factors: the length of the marriage and station in life; age and health; earning capacity, including education, training, work experience, absence from the job market and custodial responsibilities; the financial condition of the parties, including health insurance; conduct, including unreasonable depletion of marital assets; the desirability of awarding the family home to the parent with primary physical custody; each party’s circumstances and necessities; the time and manner of acquisition; and the income-producing capacity and value of the property at the time of division (25.24.160(a)(4)(A)-(I)).

Can the court reach retirement earned before the marriage?

Yes, in some cases. The court may invade the property, including retirement benefits, of either spouse acquired before the marriage when the balancing of the equities between the parties requires it (25.24.160(a)(4)). The Alaska pension division calculator therefore shows the part outside the marital fraction separately.

What is a coverture fraction?

It is a common way to find the marital part of a defined-benefit pension: months of service earned during the marriage divided by total months of service, applied to the benefit. Alaska does not require it; the statute asks for a just division on the factors. We use it for illustration only.

How does the calculation work in a worked example?

As an example, suppose a pension of $3,000 a month with 300 months of service, of which 180 months were during the marriage. The marital fraction is 60%, so the marital part is $1,800 a month. At a 50% share, the other spouse’s illustrative share is $900 a month and the plan holder keeps $2,100.

This is a labeled example, not a prediction; a court may pick a different share or method.

How is a pension actually paid to the other spouse?

For employer plans, through a domestic relations order that the plan accepts. A qualified domestic relations order creates or recognizes an alternate payee’s right to receive all or part of a participant’s benefits and must meet federal requirements (26 U.S.C. 414(p); 29 U.S.C. 1056(d)(3)). In Alaska, a judgment that distributes benefits to an alternate payee under the teachers’ retirement plan (AS 14.25), the judicial retirement chapter (AS 22.25), the Alaska National Guard and Naval Militia retirement system (AS 26.05.222 to 26.05.226) or AS 39.35 must meet the requirements of a qualified domestic relations order (25.24.160(b)). A proposed order with Social Security numbers must come with a redacted duplicate (Civil Rule 90.1(g)).

Can spouses choose community property in Alaska?

Alaska lets spouses opt in. If property is identified as community property under an agreement or trust under AS 34.77, the court distributes it as just and equitable after considering the nature and extent of the community and separate property, the length of the marriage and each spouse’s economic circumstances, unless the agreement provides otherwise (25.24.160(e)). See the Alaska property division calculator.

Frequently asked questions

Official sources

• AS 25.24.160: judgment, property and retirement benefits
• AS 25.24.200: dissolution, including retirement benefits
• Alaska Rules of Civil Procedure: Rule 90.1
• 10 U.S.C. 1408: military retired pay in divorce
• 26 U.S.C. 414(p): qualified domestic relations orders
• 29 U.S.C. 1056(d)(3): ERISA domestic relations orders

This is general information, not legal advice. It is based on the cited Alaska statutes, rules and court opinions, and every case turns on its own facts. Confirm how the law applies to your situation with a licensed Alaska attorney.