<prompt>  Human: Im an electrician, making 18.50hr paid weekly. With 40hours I make 600 dollars even. I currently claim zero on my w-4, can I add my son and maybe my wife to get more money weekly? We really need any extra income, and Im exploring my options Assistant: Yes, but if you claim too many you will end up owing extra when you file taxes. Try to run a calculator and get reasonably close so you arent loaning the government money but also dont have a large unexpected tax bill come April. Human: Is there any calculators you recommend for simulating w-4 changes? 