INSTRUCTIONS: ARIZONA CORPORATION ESTIMATED TAX PAYMENT BOOKLET (Form 120ES) Arizona business entities required to file state forms 99-T, 120, 120A and 120S are required to make estimated tax payments. This article discusses booklet 120ES, which contains forms 120ES and 120W, which are used for this purpose. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 1: The first page of this booklet is a cover sheet, while the second page is a blank. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 2: The top half of the third page contains form 120ES, which is used to make a corporation estimated tax payment. The bottom half of the third page consists of the beginning of general instructions for filing this form. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 3: The fourth page concludes the general instructions for completing and filing form 120ES. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 4: The fifth and six pages contain another copy of form 120ES and general instructions for completing it. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 5: The seventh page contains the first page of form 120W, which is used to compute the estimated tax owed. Lines 1 through 4 concern computation of the liability owed on a quarterly basis. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 6: Part I concerns computation of estimated tax owed using the annualized income installment method. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 7: Part II concerns computation of estimated tax owed using the adjusted seasonal installment method. This continues onto the eighth page. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 8: Part II concludes on the eight page. At the bottom of this page, Part III, concerning computation of required installments, begins. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 9: Instructions for completing form 120W begin on the ninth page, which contains both general instructions and specific instructions for lines 1 through 2c. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 10: Pages 10 through 12 contain specific instructions for completing the remainder of form 120W. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 11: Pages 13 through 15 contain an additional copy of form 120W. Arizona Corporation Estimated Tax Payment Booklet 120ES Step 12: Pages 15 through 18 contain two additional copies of form 120ES and instructions for completing it.