Because net income and gross income are correlated, one way to increase your net income is to increase your gross income. You might do this by finding a new, higher-paying job or by starting a side hustle. The other option to raise your net income would be to lower the amount of taxes and deductions that are taken out each pay period. This could involve, say, increasing your tax allowances to lower the amount that is withheld for taxes or decreasing your other deductions, such as how much you contribute to retirement savings.