Which tax return forms are mentioned in reference to statements attached for various income types?

The answer indicates that the forms 1040EZ, 1040A, 1040NR, and 1040PR are relevant when discussing statements attached for various income types. Each of these forms caters to different taxpayer situations, including specific income types and circumstances.

The 1040 series forms are the standard forms used by individuals to file their annual income tax returns in the United States. The 1040EZ is designed for simple tax situations with fewer deductions, while the 1040A allows for somewhat more complexity, including certain credits and income types. The 1040 is the more comprehensive form that accommodates various sources of income, as well as a wider range of tax deductions and credits.

Form 1040NR is used for non-resident aliens who have U.S. income, which is crucial for those in specific employment or business scenarios in the U.S. The inclusion of 1040PR pertains to residents of Puerto Rico, allowing them to file tax returns that account for their specific tax situation and applicable income types.

These forms collectively highlight the importance of attaching the correct statements to report various income sources accurately. Each form's design considers different income reporting requirements and who needs to report them, aligning the type of income with the