Tested tool guide
Tested browser tools
Checked August 16, 2026
What Alimony / Spousal Support Calculator does and how it behaves
This tool takes each spouse's income, the length of the marriage, and a selected state, then returns a ballpark monthly or annual alimony figure alongside its after-tax effect on both parties. Most users are surprised to learn that no single national formula sets alimony: many states leave the amount to judicial discretion weighing statutory factors, so any number here is a planning estimate, not a prediction of what a judge will order. The tax section reflects that alimony has not been federally deductible to the payer or taxable to the recipient since agreements executed after December 31, 2018.