Divorce Toolkit›Alimony Estimator

💵 Alimony Estimator

Estimate a reasonable range for spousal support based on income differences, marriage length, and common court formulas. Every state is different — this gives you a realistic starting point.

💙 Alimony is highly fact-specific. Courts weigh many factors beyond income. Always consult a family law attorney.

Your Information

$
$

Estimated Monthly Alimony

Low Estimate
$1,042/mo
25% of gap
Most Likely
$1,375/mo
33% of gap
High Estimate
$1,667/mo
40% of gap
Monthly income gap: $4,167

Estimated Duration — 10-Year Marriage

Duration Range4 years – 8 years
Long-term durational alimony
General rule of thumb: Duration is often roughly half the length of the marriage, but courts in many states have broad discretion.

Sources: NCSL Alimony Laws by State, IRS Topic 452 (Alimony), IRS Filing Status Rules. Last updated March 2026.