If Income exceed expenses- does it contribute to having net income over a time period?

Yes, if income exceeds expenses over a period of time, it will contribute to having net income. Net income is calculated by subtracting expenses from income, so if income is consistently higher than expenses, it will result in a positive net income. This can be beneficial for individuals or businesses as it indicates that they are generating more revenue than they are spending, leading to potential growth and financial stability.