
Money & Taxes
Biweekly vs. Semimonthly Child Support: Payment Math
Compare child support every two weeks with twice a month. See a $700 monthly example, rounding differences, extra paydays, and what your payroll order controls.
Author
The team that builds and verifies the SupportDecode calculators.
The SupportDecode editorial team researches, builds, and maintains the calculators and state pages on this site. Every legal figure we publish traces to an official source: a statute, a court rule, or a published guideline table, each with a checked date.
We are not lawyers, and nothing on this site is legal advice. What we do is careful reading and careful math. The formulas behind our calculators run through hundreds of test scenarios on every build, and the verification page shows exactly which scenarios match official calculators and which still await an official cross-check.
When we get something wrong, we fix it in the open. Material fixes get a dated entry in the update log, never a silent edit.

Money & Taxes
Compare child support every two weeks with twice a month. See a $700 monthly example, rounding differences, extra paydays, and what your payroll order controls.

Custody & Parenting Time
See a dated custody calendar before and after a three-night holiday exception. Check overnight totals, longer stays, the return to rotation, and export dates.

Custody & Parenting Time
Compare continuing a school-week routine with alternating summer weeks on the same dates. Count changed nights and plan the transition back without gaps.

Child Support
Maryland shared custody involves more than 92 overnights. See the expense test, the 92–109-night adjustment, and why equal time may still mean support.

Child Support
New Jersey 50/50 custody may use the shared-parenting worksheet when the overnight, housing, and primary-household tests are satisfied.

Custody & Parenting Time
A practical parenting plan checklist covering exchanges, holidays, expenses, tax questions and safety. Use it with your local court forms, not instead of them.
Your privacy choice
Calculator inputs and results stay on this device. Allowing analytics shares page views, approximate region, and device type with Google. Declining changes nothing.