Massachusetts has a flat tax rate of 5%. An additional 4% tax is levied on income over $1 million, making the highest tax rate in the state 9%.

As income tax filing season officially starts on Monday, a limited number of taxpayers in 12 states will soon be eligible to join an IRS pilot program that will allow them to calculate and submit ...

Massachusetts tax filers have an estimated $26.5 million in unclaimed refunds from the 2021 tax year, according to the Internal Revenue Service. But the deadline to claim it is April 15. Here’s how ...