It depends on which states. Typically, income is taxed in the resident state. Based on the state rules where the fishing vessel leaves port, there could be an additional filing requirement there and tax due. The resident state typically would give the taxpayer a credit for any tax already paid to another state.
By carefully replying to the questions in TurboTax, the state details will be accurately captured.
For state information:
How do I file a part-year state return?
How do I file a nonresident state return?
For contact information for states that have income tax: How do I contact my state Department of Revenue? Go to each state's department of revenue and get the individual income tax instructions for each state to determine if there is a filing requirement.
For federal information:
How do I report income from self-employment?
IRS Tax Topic 416 Farming and Fishing Income
IRS 2019 Publication 225 Farmer's Tax Guide
@nbattey42
