To do your taxes properly, you will need to have the proper tax forms handy. There are many different forms that taxpayers must fill out to report their income, profit or loss from a business and any investment income that they had throughout the year.Form 1040Form 1040 is where taxpayers report their regular income from the past year. On this form, taxpayers will also indicate any deductions, credits or rebates that they will be using to offset some of their taxable income. Common reductions to taxable income include the standard deduction and exemption, student loan interest and the mortgage interest deduction.Form 1099This form is given out to those who worked as an independent contractor over the past year. If you earn more than $600 from any one company, you are required to get this form. The entity that you worked for must also send a copy of this form to the IRS. A 1099 will indicate how much money you made as an independent contractor and will be used as the baseline for how much self-employment tax you owe among other taxes.Form 1120 And 1120sForm 1120 is a corporate form that must be filed with the government. If you are running a s-corporation, you must fill out form 1120s no later than March 15th. Shareholders will also have to fill out a K-1 form which indicates their profit from investing in a corporation. The government will also require corporations to file Form 940 and 941 on a quarterly basis.Figuring out which tax forms that you need to fill out can be a confusing process. However, these are the main forms that the typical taxpayer will need to file an accurate return this year. If you have any questions regarding your tax return, talk to the IRS or an enrolled agent as soon as possible for assistance.