All three Massachusetts governor candidates are not releasing their tax returns. 

The Boston Globe reports Governor Maura Healey and Republican challengers Mike Minogue and Brian Shortsleeve declined requests for five years of returns. 

While state law does not require candidates to release the documents, this comes after all three have promised transparency in their campaign. 

The tax returns can provide insight into the money they have available to shape their ability to get their message out to voters.