Follow the steps to complete the CA Form 3803 online.

1. Click ‘Get Form’ button to obtain the CA Form 3803 and open it for online editing.
2. In the first section, enter the name(s) as shown on your tax return along with your Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN). For the child's information, enter their name (first, initial, and last) and their SSN or ITIN.
3. If you have more than one CA Form 3803 attached, check the box indicating this. This box can be found near the top of the form.
4. Proceed to Part I—Child’s interest and dividend income. Start with line 1a, entering your child’s taxable interest income. For line 1b, enter any tax-exempt interest income, making sure not to include this on line 1a.
5. For line 2, provide the total of your child’s ordinary dividends. If none, enter -0-. If dividends are received as a nominee, follow the specific instructions provided.
6. Continue with line 3, where you should enter any capital gain distributions received by the child. If any were received as a nominee, refer to the instructions.
7. For line 4, add the amounts from line 1a, line 2, and line 3. Take note that if the total is $2,600 or less, you will skip lines 5 and 6 and proceed directly to line 7.
8. Line 5 has a base amount of $2,600, which you should enter as requested. After that, in line 6, subtract line 5 from line 4.
9. In Part II, starting with line 7, enter the amount not taxed, which is $1,300. For line 8, subtract line 7 from line 4; if this results in zero or less, enter -0-.
10. For line 9, determine if the amount on line 8 is less than $1,300. If it is, you will enter $13.00; if not, multiply line 8 by 1% (0.01) and enter that result.
11. Finally, review your entries for accuracy. Once complete, you can save your changes, download the form, print it, or share it as needed.

Ensure you complete your paperwork effectively by filing the CA Form 3803 online today.