The first business task I perform each year is to copy my checklist from the previous year and make the necessary modifications. Here is my basic checklist for 2011. I also have all of these items set up with reminders in Outlook. Hopefully by having both the reminder and the checklist I won’t forget to do any of them.
| Begin Date | Due Date | Done | Tax Authority | Freq. | Action |
| 1/1/2011 | 1/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments for DEC Last Year | |
| 1/1/2011 | 1/31/2011 | Federal | Annual | Federal W2 to employee (me) | |
| 1/1/2011 | 1/15/2011 | Missouri | Quarterly | Individual Estimated Income Tax (MO1040-ES) | |
| 1/1/2011 | 1/15/2011 | Federal | Quarterly | Individual Estimated Q4 last year (1040-ES) | |
| 1/1/2011 | Lee’s Summit | Annual | Register Business Section 28-30 | ||
| 1/1/2011 | 1/31/2011 | Federal | Quarterly | Tax Report for Q4 last year (941) | |
| 1/1/2011 | 1/31/2011 | Missouri | Quarterly | Q4 Last Year WH Report (MO941) and payment (combined online) | |
| 1/1/2011 | 1/31/2011 | Missouri | Quarterly | File and Pay MO Unemployment ($0) Q4 last year | |
| 1/1/2011 | 1/31/2011 | Federal | Annual | FUTA “FORM” 940 for last year | |
| 2/1/2011 | 2/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 2/1/2011 | 2/28/2011 | Federal | Annual | W3 to SSA | |
| 2/1/2011 | 2/28/2011 | Missouri | Annual | MO-W3 | |
| 1/1/2011 | 3/1/2011 | Missouri | Annual | File Annual Report (online) | |
| 2/1/2011 | 3/15/2011 | Federal | Annual | Business Taxes Year last year (1120s). K-1 to me | |
| 1/1/2011 | 3/15/2011 | Missouri | Annual | MO1120s | |
| 3/1/2011 | 3/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 4/1/2011 | 4/15/2011 | Federal | Quarterly | Individual Estimated Q1 This year (1040-ES) | |
| 4/1/2011 | 4/15/2011 | Missouri | Quarterly | Individual Estimated Income Tax (MO1040-ES) | |
| 4/1/2011 | 4/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 1/1/2011 | 4/15/2011 | Federal | Annual | Individual 1040 | |
| 1/1/2011 | 4/15/2011 | Missouri | Annual | Missouri 1040 | |
| 1/1/2011 | 4/15/2011 | Kansas | Annual | Kansas 1040 | |
| 4/1/2011 | 4/30/2011 | Federal | Quarterly | Tax Report for Q1 (941) | |
| 4/1/2011 | 4/30/2011 | Federal | Annual | FUTA (940) – $56 | |
| 4/1/2011 | 4/?/2011 | Missouri | Quarterly | File and Pay MO Unemployment | |
| 4/1/2011 | 4/30/2011 | Missouri | Quarterly | Q1 WH Report (MO941) and payment (combined online) | |
| 5/1/2011 | 5/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 6/1/2011 | 6/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 6/1/2011 | 6/15/2011 | Missouri | Quarterly | Individual Estimated Income Tax (MO1040-ES) | |
| 6/1/2011 | 6/16/2011 | Federal | Quarterly | Individual Estimated Q2 (1040-ES) | |
| 7/1/2011 | 7/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 7/1/2011 | 7/31/2011 | Federal | Quarterly | Tax Report for Q2 (941) | |
| 7/1/2011 | 7/31/2011 | Missouri | Quarterly | Q2 WH Report (MO941) and payment (combined online) | |
| 7/1/2011 | 7/?/2011 | Missouri | Quarterly | File and Pay MO Unemployment | |
| 8/1/2011 | 8/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 9/1/2011 | 9/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 9/1/2011 | 9/15/2011 | Missouri | Quarterly | Individual Estimated Income Tax (MO1040-ES) | |
| 9/1/2011 | 9/15/2011 | Federal | Quarterly | Individual Estimated Q3 (1040-ES) | |
| 10/1/2011 | 10/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 10/1/2011 | 10/31/2011 | Federal | Quarterly | Tax Report for Q3 (941) | |
| 10/1/2011 | 10/31/2011 | Missouri | Quarterly | Q3 WH Report (MO941) and payment (combined online) | |
| 10/1/2011 | 10/?/2011 | Missouri | Quarterly | File and Pay MO Unemployment ($0) | |
| 11/1/2011 | 11/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 12/1/2011 | 12/15/2011 | Federal | Monthly | WH, MD, and SSN Tax payments | |
| 12/1/2011 | 1/15/2011 | All | Annually | Identify tax and reporting changes for next year. |