How this hub works
Each calculator above covers every state and the District of Columbia, independently, with its own cited statute and worked examples. Where a state sets a fixed rule — a guideline formula, a statutory cap, a residency period — we show it with the exact code section. Where the law only lists factors and leaves the number to the judge, we say so instead of inventing one. See our methodology for how every figure is verified.
What's in this cluster
A divorce or separation raises a handful of related money and timing questions, usually in a particular order. This cluster is built around those questions rather than as one generic "divorce calculator":
- Child Support — what your state's guideline says is owed, and how income and parenting time change it.
- Alimony / Spousal Support — the formulas, caps and duration limits that some states write into law, and the factors that decide the rest.
- Property Division — whether your state follows community property or equitable distribution, and what that means for the split.
- Child Support Modification — whether a change in income or circumstances meets your state's threshold for revisiting an order.
- Child Support Arrears & Interest — what is owed on missed payments, and whether your state charges interest.
- Child Support End Date — when the obligation ends under your state's age and school rules.
- Parenting Time & Custody — a custody schedule turned into overnights and percentages, compared with your state's thresholds.
- Divorce Timeline — the earliest legal date given your state's residency and waiting-period rules.
- Retirement & Pension Division — the marital share of a pension or retirement account.
Every calculator links back to this hub and to its closest sibling calculators, so an answer on one question leads naturally to the next question it usually raises.
Why state matters more than most people expect
Family law is set state by state, and the differences are large. For child support, the National Conference of State Legislatures reports that states use one of three guideline models: income shares in 41 states, a percentage of the paying parent's income in six, and the Melson formula in three, with the District of Columbia using a hybrid. Every guideline must also meet a federal floor (45 CFR 302.56).
Alimony shows the same split. Some states write a formula or a duration limit into law, such as Illinois (750 ILCS 5/504) and Texas (Tex. Fam. Code 8.055), while others leave it to the judge. Property is divided under community property rules in only nine states, according to the IRS (Publication 555), and even the first step of a divorce differs: Florida requires six months of residence before filing (Fla. Stat. 61.021) while Nevada requires six weeks (NRS 125.020). A single national calculator averages all of that away, so this hub builds one calculator per question, with a dedicated page for every state.