To accurately determine the correct amount of Massachusetts withholding, employers will rely on Massachusetts Form M-4. The IRS views any bonus you receive as wages.This means that almost all bonuses are taxed. Find out how to calculate your Massachusetts gross, adjusted gross, and taxable income. See what's included and excluded. Learn how to fill out a Financial Statement Form, which you need for many types of cases in Massachusetts Probate and Family Court. FUTA payments are due quarterly, but you just have to fill out Form 940 once a year. When recording the straight time hourly rate, any cash paid in lieu of fringe benefits may be shown separately from the basic rate. But if your information is the same on both your M-4 and W-4, you don't have to fill out the former. Profit-sharing and stock bonus plan, or IRA payments.