Automatic Data Processing, Inc.

ADP's core payroll engine. It calculates and delivers each worker's paycheque, files and remits the associated payroll taxes with tax authorities, and administers health insurance and retirement benefits on the employer's behalf. Because payroll touches every worker's pay and every regulatory filing at once, employers rarely switch providers once set up, giving ADP a steady base of recurring per-employee fees.ADP的核心薪资引擎。它为每位员工计算并发放薪资，向税务机关申报并缴纳相关的工资税，并代表雇主管理医疗保险和退休福利。由于薪资业务同时涉及每位员工的薪酬发放和每一项监管申报，雇主一旦完成设置后很少更换服务商，这为ADP带来了稳定的按员工计费的经常性收入基础。

• Payroll and tax filing薪资发放和报税 — Calculates each paycheque, pays the worker, and files and remits the payroll taxes to the government.计算每张工资单，发放工资，并向政府申报和缴纳工资税。
• Benefits and retirement福利和退休金 — Administers health insurance and retirement plans for the employer.为雇主管理医疗保险和退休金计划。
• Delivery by size按规模提供服务 — RUN for small firms (900,000+ businesses), Workforce Now for mid-size, and Lyric HCM for large enterprises.面向小型企业的 RUN（900,000+家企业）、面向中型企业的 Workforce Now，以及面向大型企业的 Lyric HCM。

ADP acts as a co-employer for small and mid-sized businesses, taking on their payroll, benefits administration, and compliance duties so those firms can offer big-company-style health and retirement benefits without building an internal HR department. Most of the money flowing through this segment is passed straight through to fund employee benefits and payroll taxes, so its real profit contribution to ADP is smaller than the revenue figure suggests.ADP在这项业务中充当中小企业的共同雇主，承担这些企业的薪资发放、福利管理和合规事务，使企业无需自建人力资源部门即可为员工提供大公司级别的医疗和退休福利。该板块中大部分资金是直接转付用于支付员工福利和工资税，因此其对ADP的实际利润贡献小于收入数字所显示的规模。