What the judge actually looks at

Alimony is calculated using a formula in some states and a judge's discretion in others. The judge or state guidelines will consider how much each spouse earned during the marriage, how long you were married, and whether one spouse gave up work or education to support the family. The goal is usually to let the lower-earning spouse maintain a standard of living close to what they had during the marriage, or to give them time to become self-supporting.

No two cases produce the same number because judges weigh these factors differently, and state law varies widely. A judge in one state might focus heavily on the length of the marriage while another state's guidelines emphasize current income. This is why two divorces that look similar on paper can result in very different alimony orders.

Key Takeaways

  • Most states use either a formula based on income and marriage length, or a judge's discretion, or both — check your state's law to know which applies to you.
  • The judge will look at both spouses' current income, earning capacity, age, health, and whether one spouse sacrificed career or education during the marriage.
  • Length of marriage matters: short marriages often result in lower or no alimony, while long marriages typically result in longer payment periods.
  • Alimony can be temporary (ending after a set time or when the receiving spouse remarries) or permanent, depending on the marriage length and state law.
  • The judge may order a vocational evaluation to estimate what the lower-earning spouse could earn if they returned to work or retrained.

Income and earning capacity: what counts

The judge starts with each spouse's gross income — wages, salary, bonuses, self-employment income, rental income, and investment returns. But income is not always straightforward. If one spouse owns a business, the judge may look at tax returns and business records to determine actual income, not just what is reported. If one spouse is unemployed or underemployed, the judge may calculate what they could earn based on their education, work history, and age.

Earning capacity is especially important when one spouse left the workforce. If you stopped working to raise children or support your spouse's career, the judge will consider what you could realistically earn if you returned to work now. This might be less than what you earned before, or it might be more if you have gained skills. The judge may order a vocational evaluation — an assessment by a career counselor or vocational informed — to estimate your earning potential.

Some income sources are excluded or treated differently. Child support, means-tested benefits, and Social Security may not count as income for alimony purposes, depending on your state. Bonus income or overtime that is irregular may be averaged over several years rather than counted at full value in a single year.

Marriage length and alimony duration

How long you were married often determines how long alimony lasts. Many states use a rule of thumb: alimony lasts for one-half to one-third the length of the marriage. A 10-year marriage might result in alimony for 5 years; a 20-year marriage might result in alimony for 10 to 15 years or longer.

Short marriages — often defined as fewer than 5 years — usually result in temporary alimony or none at all, unless one spouse has a serious disability or health issue. Long marriages — often 20 years or more — frequently result in permanent alimony, meaning it continues until the receiving spouse dies or remarries, or until a major change in circumstances occurs.

Some states distinguish between "rehabilitative" alimony (meant to help the receiving spouse retrain or return to work) and "durational" alimony (a set period of support). The length of the marriage helps the judge decide which type fits your situation.

Standard of living during the marriage

The judge will look at how you both lived during the marriage — what you spent on housing, transportation, education, travel, and other expenses. The goal of alimony is often to keep the lower-earning spouse's standard of living reasonably close to what it was during the marriage, though not always identical.

This is why the judge may ask for detailed financial records: tax returns, bank statements, credit card bills, and mortgage or rent payments. These show what the household actually spent, not what either spouse claims it was. If the marriage involved significant wealth — investment accounts, real estate, business interests — the judge will consider that too.

A spouse who lived a modest lifestyle during the marriage will receive lower alimony than a spouse who lived lavishly, even if both spouses earned the same income. The standard of living is specific to your marriage, not a general rule.

Age, health, and ability to work

The judge will consider each spouse's age and health. A 55-year-old with a chronic illness who has not worked in 20 years faces different prospects than a 35-year-old in good health who left the workforce for five years. Age affects earning potential, job prospects, and the likelihood of returning to work.

Health issues — whether physical or mental — can reduce earning capacity or make work impossible. The judge may order a medical evaluation if health is a major factor. Disability does not automatically mean permanent alimony, but it weighs heavily in the judge's decision.

Retirement age also matters. If the paying spouse is approaching retirement, the judge may limit alimony duration or amount, knowing that retirement income will be lower. Some states allow the paying spouse to request modification or termination of alimony when they reach a certain age or actually retire.

Sacrifices made during the marriage

If one spouse gave up education, career advancement, or work entirely to support the family or the other spouse's career, the judge will factor that in. This is common when one spouse stayed home to raise children or supported the other spouse through professional school.

The judge may look at what the lower-earning spouse's career might have been if they had not made these sacrifices. If you left law school to support your spouse's medical degree, or turned down job offers to move for your spouse's career, the judge will consider the cost of those decisions.

This factor often results in higher alimony or longer duration, especially in longer marriages. It recognizes that one spouse's sacrifice directly enabled the other spouse's higher earning power.

Temporary versus permanent alimony

Alimony can be ordered for a set period of time or indefinitely. Temporary alimony (also called durational or rehabilitative alimony) ends on a specific date, when the receiving spouse remarries, or when a major change in circumstances occurs — such as the receiving spouse becoming self-supporting or the paying spouse's serious illness or retirement.

Permanent alimony continues until one of those events happens: the receiving spouse's death, remarriage, or a substantial change in circumstances that the judge finds warrants modification. Permanent alimony does not mean forever in all cases — it means there is no automatic end date built into the order.

The judge's choice between temporary and permanent usually depends on marriage length, age of the receiving spouse, and whether the receiving spouse can realistically become self-supporting. A 60-year-old who was out of the workforce for 30 years is more likely to receive permanent alimony than a 40-year-old who was out for five years.

Frequently Asked Questions

Do I have to use the state formula, or can the judge decide differently?

Most states allow judges to deviate from the formula if they find it would be unjust or inappropriate in your case. You or your spouse can ask the judge to consider factors the formula does not capture — such as one spouse's sacrifice or a major health issue. The judge must explain in writing why they are departing from the formula, so the decision can be reviewed if either side appeals.

What if my spouse is hiding income or underreporting it?

You can request financial discovery — the legal process of demanding tax returns, bank statements, business records, and other documents. If your spouse owns a business, you may hire a forensic accountant to review the books. If the judge finds that your spouse is deliberately hiding income, the judge can impute (assign) income to them based on their earning capacity or past income, and may also order them to pay your attorney fees for the extra work.

Can alimony be modified if my circumstances change?

Yes, but only if there is a substantial change in circumstances — not minor fluctuations in income. A job loss, serious illness, retirement, or a significant raise may justify a request to modify alimony. The paying spouse must show the change was not voluntary (quitting a job to avoid alimony usually does not work). The receiving spouse can also request modification if they become unable to work or if the paying spouse's income increases significantly.

What if I was married for a very short time?

Short marriages often result in little or no alimony, especially if both spouses were employed or employable. The judge may order temporary alimony to help the lower-earning spouse transition, but permanent alimony is rare. If one spouse has a disability or serious health issue, or if there was a significant income gap, the judge may order some alimony even in a short marriage.

Does the judge consider who caused the divorce?

In most states, no — the judge focuses on need and ability to pay, not fault. A few states still consider fault (infidelity, abuse, abandonment) in alimony decisions, but this is becoming less common. Even in fault-based states, the judge's primary concern is the financial disparity between the spouses, not who was "wrong" in the marriage.