| ACRS | | Accelerated Cost Recovery System |
| AGI | | Adjusted Gross Income |
| ATF | | Bureau of Alcohol, Tobacco, and Firearms |
| EFTPS | | Electronic Federal Tax Payment System |
| EIN | | Employer Identification Number |
| EITC | | Earned Income Tax Credit |
| FICA | | Federal Insurance Contributions Act |
| FTD | | Federal Tax Deposit |
| FUTA | | Federal Unemployment Tax Act |
| IRA | | Individual Retirement Account/Arrangement |
| IRC | | Internal Revenue Code |
| ITIN | | Individual Taxpayer Identification Number |
| MACRS | | Modified Accelerated Cost Recovery System |
| NOL | | Net Operating Loss |
| SBA | | Small Business Association |
| SE Tax | | Self Employment Tax |
| SEP | | Simplified Employee Pension |
| SIMPLE | | Savings Incentive Match Plan for Employees |
| SSA | | Social Security Administration |
| SSN | | Social Security Number |
