The Washington Joint Filing Agreement (JFK) is a legal document that allows married couples in Washington state to file their state taxes jointly instead of separately. This agreement is designed to simplify the tax filing process for couples who wish to combine their incomes, deductions, and credits for tax purposes. By filing jointly, couples may be eligible for tax benefits and deductions that would not be available if they were to file separately. The Washington Joint Filing Agreement is an essential requirement for couples who want to take advantage of joint filing in Washington state. It must be completed and signed by both spouses, acknowledging their consent to file jointly and declaring that all information provided is accurate and true to the best of their knowledge. The agreement encompasses various aspects, including providing personal information such as names, Social Security numbers, and contact details for both spouses. Additionally, it typically asks for income details from both spouses, including wages, self-employment income, interest, dividends, and other sources of income. The Washington Joint Filing Agreement recognizes the responsibility shared by both spouses for the accuracy and completeness of the tax return. It ensures that both individuals understand their joint liability for any taxes owed or penalties assessed by the state taxing authorities. Although there is typically only one standard Washington Joint Filing Agreement, it may be adapted by the Washington Department of Revenue (FOR) to meet changing tax regulations or requirements. It is crucial for couples to obtain the latest version of the agreement from the FOR's official website or local tax office to ensure compliance with current tax laws. In summary, the Washington Joint Filing Agreement is a legal document that enables married couples in Washington state to file their taxes jointly. It streamlines the tax filing process, potentially resulting in tax benefits and deductions for the couple. It is essential for couples to carefully complete and sign the agreement, understanding their joint tax liability and the accuracy of the information provided.