1. From within your TaxAct® return (Online or Desktop) click on the Federal tab. On smaller devices, click in the upper left-hand corner, then select Federal.
2. Click Itemized or Standard Deductions to expand the category, then click Other expenses related to taxable income - Subject to 2% of AGI limit
3. Click Continue one time
4. Enter the amount in the description box titled Depreciation on home computers used for investments

On the other hand, you can create a "dummy" Schedule C in the TaxAct program to calculate the depreciation amount, then delete that Schedule C. (You will need to be using the TaxAct Premium edition in order to create a Schedule C)

1. Click on the Federal tab. On smaller devices, click the menu icon in the upper left-hand corner, then select Federal.
2. Click Business Income to expand the category and then click Business income or loss from a sole proprietorship
3. Click Add to create a new Schedule C (if you have not yet upgraded to TaxAct Premium edition, you will be prompted to do so now)
4. Click Continue or No until you reach the screen Business Income - Depreciation, then click Yes
5. The program will proceed with the interview questions for you to enter or review the appropriate information
6. The screen titled Depreciation - Summary will show you the amount of depreciation to enter in the navigation steps above
7. To delete the Schedule C:
   1. Click on the Federal tab
   2. Click Business Income to expand the category and then click Business income or loss from a sole proprietorship
   3. Check the box to the right of the "dummy" Schedule C previously entered, then click Delete