<prompt> Human: So I work hourly for a school district, which means I get paid for 180 days a year. I also coach football and this job pays in 2 lump sums, that are added onto my bi-weekly paycheck. This means that for the first half of my coaching check 1800 and the 2 week pay check 800 netted me less than 1600. Im single, no kids, rent a house. Ive heard of claiming 99 or something like that twice a year, heard some other rumors, trying to figure out if there is anything I can do. and btw, I dont get my tax return because I have defaulted on a student loan.  <response>: You can specify a dollar amount to be withheld instead of using the standard tables. Just estimate your tax liability, divide that number by the number of checks you receive in a year, and have that amount withheld from each check. Your payroll department wont be helpful, but there is nothing wrong with doing it this way. Just be firm with them and dont give in. Ive been doing this for years... 