| ACH | Automated Clearing House |
| ADA | Americans with Disabilities Act |
| AEIC | Advanced Earned Income Credit |
| COBRA | Consolidated Omnibus Budget Reconciliation Act |
| DBA | Doing Business As |
| DOL | Department of Labor |
| DOR | Department of Revenue |
| EE | Employee |
| EEOC | Equal Employment Opportunity Commission |
| EFT | Electronic Funds Transfer |
| EFTPS | Electronic Federal Tax Payment System |
| EIC | Earned Income Credit |
| EIN | Employer Identification Number |
| ER | Employer |
| ERISA | Employee Retirement Income Security Act |
| FICA | Federal Insurance Contributions Act |
| FIT | Federal Income Tax |
| FLSA | Fair Labor Standards Act |
| FMLA | Family & Medical Leave Act |
| FTP | File Transfer Protocol |
| FUTA | Federal Unemployment Tax Act |
| ICESA | Interstate Conference of Employment Security Agencies |
| IRS | Internal Revenue Service |
| MAGI | Modified Adjusted Gross Income |
| MMREF | Magnetic Media Reporting & Electronic Filing |
| MSA | Medical Savings Account |
| NACHA | National Automated Clearing House Association |
| NAICS | North American Industrial Code System |
| OASDI | Old Age Survivors, Disability Insurance |
| OFI | Originating Financial Institution |
| OSHA | Occupational Safety and Health Administration |
| PIN | Personal Identification Number |
| POA | Power of Attorney |
| POP | Premium Only Plan |
| PTO | Paid Time Off |
| QTD | Quarter-to-Date |
| SIC | Standard Industrial Code |
| SIT | State Income Tax |
| SS | Social Security |
| SSA | Social Security Administration |
| SSN | Social Security Number |
| SUI | State Unemployment Insurance |
| SUTA | State Unemployment Tax Act |
| TEFRA | Tax Equity Fiscal Responsibility Act |
| TFB | Taxable Fringe Benefit |
| TIN | Taxpayer Identification Number |
| VPD | Variable Pay by Department |
| YTD | Year-to-Date |
| 3PSP | Third Party Sick Pay |