Guideline child support is a formula. The formula is not the fight. The fight is over the inputs: what each parent actually earns, and what percentage of time the child spends with each parent.
For W-2 parents, income is easy. But Los Angeles parentage cases routinely involve a parent who owns a business, works through an LLC or loan-out, earns irregular entertainment or gig income, or receives equity compensation. Self-reported income has a way of shrinking the month a support case is filed. This is where our practice is different: we approach a contested-income support case the way we approach a high-asset divorce — with targeted discovery, business records, and forensic accounting where the numbers justify it. Perks run through a company, deferred compensation, and depressed owner salaries are all reachable in the support analysis.
Two more points parents should know. Support in a parentage action can generally be ordered retroactive to the date the petition or initial pleading was filed, subject to statutory service limitations FC §4009: if the paying parent was not served within 90 days of filing and was not evading service, support generally cannot begin earlier than the date of service. Delay has a price — for both sides. And if the local child support agency is already involved, you can still have private counsel; the agency represents the state’s interest in support collection, not you, and it will not litigate your custody case at all.