Introduction

Hiring in the United States means navigating a patchwork of federal law layered under 50 different state regimes. California, in particular, is known for some of the most employee-protective labor law in the country — from meal and rest break rules to strict wage-and-hour enforcement. This guide walks you through what an employer needs to know before hiring in the U.S., with a dedicated deep dive into California, so you can build a compliant, competitive offer from day one.

1. Country & State Snapshot

2. Employment Relationship & Termination

2.1 At-Will Employment

California is an at-will employment state: either party may end the employment relationship at any time, for any reason, or no reason at all — provided the termination is not discriminatory and does not breach an existing employment contract.

2.2 Notice Period & Severance

There is no federal or California state law requiring a notice period or severance pay upon termination. Any such entitlement must come from a company policy, offer letter, or employment contract.

2.3 Mass Layoffs

Mass redundancies are the exception to the light-touch rule above. They trigger obligations under the federal WARN Act and the California WARN Act (Cal/WARN), which generally require advance written notice to affected employees before a qualifying plant closing or mass layoff.

2.4 Final Pay

All outstanding wages owed to a terminated employee must be paid immediately upon termination under Section 201 of the California Labor Code — this is one of the most strictly enforced rules in the state, so build it into your offboarding checklist.

2.5 Probation Period

There is no statutory probation period under federal or California law; employers are free to define their own introductory period by policy.

3. Payroll & Compensation

3.1 Payday Rules

Under Section 204 of the California Labor Code, wages must be paid at least twice per calendar month, on designated regular paydays:

Exempt executive, administrative, and professional employees under the federal Fair Labor Standards Act may instead be paid monthly, on or before the 26th day of the month.

3.2 Minimum Wage

Effective January 1, 2025, California's minimum wage is USD 16.50 per hour. Many cities and counties set higher local minimums, so always check the specific work location. There is no tip credit in California — tipped employees must receive the full minimum wage before tips.

3.3 Bonuses

Neither federal nor California law mandates a 13th-month payment or any other statutory bonus.

4. Working Hours, Breaks & Overtime

4.1 Standard Hours

Standard working hours are capped at 8 hours per day and 40 hours per week (Section 510, California Labor Code). Employers and employees may jointly adopt an alternative workweek schedule of up to 10 hours per day within a 40-hour week without triggering daily overtime, subject to specific adoption procedures.

4.2 Overtime Pay

There is no statutory cap on the amount of overtime an employee may work.

4.3 Rest Days

Employees are entitled to one rest day in every workweek (Sections 551–552, California Labor Code).

4.4 Meal & Rest Breaks

On-duty meal periods are permitted only when the nature of the work prevents the employee from being relieved of all duties, and only with a written agreement — in that case, the meal period counts as paid working time.

4.5 Lactation Accommodation

Employers must provide reasonable break time and a private space (not a bathroom) for nursing employees to express milk for up to one year after the child's birth, under both federal law and Sections 1030–1034 of the California Labor Code. The break time itself does not need to be paid, and a very limited undue-hardship exception exists for employers with fewer than 50 employees.

5. Leave Entitlements

5.1 Public Holidays

Employers are not legally required to give paid or unpaid time off for holidays; employees who work a holiday are simply paid at their normal rate. In practice, most California employers observe the 11 state-recognized public holidays.

5.2 Annual Leave

There is no statutory right to paid annual/vacation leave. If an employer chooses to offer paid vacation, California treats accrued vacation as earned wages that must be paid out on separation.

5.3 Sick Leave

Under Section 246 of the California Labor Code, eligible employees earn at least 40 hours (5 days) of paid sick leave per year — whichever is more generous under the applicable accrual method. Eligibility requires 30 days of employment within a 12-month period and completion of a 90-day employment period before use.

Sick leave can be used for the employee's own illness or preventive care, or to care for a family member. Many California cities and counties layer on their own, more generous paid sick and safe leave ordinances — always check local rules.

5.4 Pregnancy, Parental & Family Leave

CFRA and FMLA eligibility both require 12 months of employment and at least 1,250 hours worked in the prior 12 months. Employees on PDL or CFRA leave may qualify for partial wage replacement through California's State Disability Insurance (SDI) or Paid Family Leave (PFL) programs, both administered by the Employment Development Department (EDD).

5.5 Other Statutory Leave

6. Personal Income Tax

Employees in California pay both federal income tax and California state income tax — there are no local income taxes anywhere in the state.

6.1 Federal Income Tax — Single Filers (2025)

6.2 California State Income Tax — Single Filers (2025)

Rates for married-filing-jointly and head-of-household statuses use different bracket thresholds at both the federal and state level — see your payroll provider or tax advisor for the applicable schedule.

7. Statutory Social Contributions

7.1 Employer Contributions

7.2 Employee Contributions

NOTE Additional Medicare Tax thresholds: USD 250,000 (married filing jointly), USD 125,000 (married filing separately), USD 200,000 (all others). 

8. Employer Compliance Checklist

• Confirm the correct payroll cycle (semi-monthly minimum) and payday windows for the pay period worked.
• Set pay at or above USD 16.50/hour, checking for higher city/county minimums at the work location.
• Build in meal and rest breaks based on shift length, and track them accurately — this is one of California's most litigated wage-and-hour areas.
• Track daily and weekly overtime separately; California's daily overtime trigger (8 hrs/day) is stricter than the federal standard (40 hrs/week).
• Register for CA UI, ETT, and SDI, and set up FUTA/FICA withholding at the federal level.
• Offer CalSavers or confirm your existing qualifying retirement plan covers the workforce.
• Track leave eligibility thresholds carefully — many entitlements only kick in at 5, 15, 25, or 50 employees.
• Pay all final wages immediately upon termination to avoid waiting-time penalties.
• Monitor city and county ordinances for sick leave, minimum wage, and scheduling rules that exceed state law.

Why Partner with Slasify

HR should be simple, not stressful. Slasify helps global companies hire, pay, and manage teams in the U.S. and around the world — handling payroll, tax withholding, statutory contributions, and compliance so you don't have to track every state and local rule yourself. Whether you're hiring your first employee in California or scaling a distributed U.S. team, we blend smart technology with real human support to keep you compliant and your people cared for.