State tax returns refer to the official documentation required by state governments to report personal income and tax obligations. Synonyms for state tax returns vary depending on the location and context. Some common alternatives include state income tax filings, state tax forms, state tax reports, state tax declarations, and state tax receipts. Regardless of what they are called, state tax returns are an essential part of tax compliance and should be filed accurately and timely to avoid any potential penalties or fines. It is essential to understand the different terminologies used and the requirements of each state to ensure compliance and avoid any issues with the tax authorities.