To maintain a healthy credit score, it's important to keep your credit utilization rate at or below 30%

When you add an authorized user to your credit card account, information from the account — like the credit limit, payment history and card balance — can show up on that person's credit reports. That means their credit can improve as a result of being added to a credit account you keep in good standing.

If your sole proprietorship business has no profit or loss during the full year, it's not necessary to file a Schedule C (Form 1040), Profit or Loss from Business (Sole Proprietorship) for that year.

If your business is inactive, but you receive payments such as insurance that relate to the business, you must report those payments on a Schedule C.

Yes, if you meet the requirements, you may claim:

Generally, a child must live with you in the United States for more than half of the tax year to be a qualifying child. You may treat a child who was born alive or died in 2020 as having lived with you for more than half of 2020 if your main home was the child’s main home (or would have been) for more than half of the time he or she was alive in 2020.

The earned income credit requires that you provide a valid social security number (SSN) for your qualifying child. If you meet all of the other requirements to claim this credit, and your child was born and died in 2020 and didn't have an SSN, instead of an SSN, you may enter "DIED" on line 2 of Schedule EIC (Form 1040), Earned Income Credit and attach a copy of the child's birth certificate, death certificate, or a hospital medical record showing a live birth.

No, for purposes of calculating the earned income credit, child support isn't considered earned income.