Preparation of taxes for clients that reside, earn, and conduct business in several different states may prove to be difficult. Every state has its own criteria when it comes to the issue of residency, income sourcing, deduction, credit, apportionment, and other things. Preparing such a return manually for a tax professional could lead to higher preparation times as well as chances of error. Intuit ProSeries has an elaborate workflow in place to prepare federal and state returns, including multi-state individual and business returns.
In this blog, we will explain ProSeries for multi-state filings to understand how tax professionals can set up a return for their clients, enter information for their states, allocate their income, prepare several state returns, run diagnostics, and file the return. We shall also highlight key workflow tips and some of the challenges in preparing multi-state returns.
Understanding Multi-State Tax Returns and ProSeries
The process of preparing multi-state returns involves more than just preparing several state returns alongside a federal one. It is necessary to establish the filing requirements for the client, as well as how income and other taxable items are taxed in each relevant jurisdiction.
Why Multi-State Tax Returns Are More Complex
A taxpayer may reside in one state but work in another, move from one state to another in the course of the year, derive income from real estate in another state, or conduct business in several states. Different state returns may arise due to different circumstances.
In individual tax return preparation, it may be necessary for the preparer to differentiate between taxpayers who are full-year residents, part-year residents, and nonresidents. In business returns, there may be more allocation and apportionment issues involved. Hence, it is important that the client’s facts be examined.
How ProSeries Supports Multi-State Preparation
ProSeries contains features that will assist the preparer in generating state returns and inputting state-specific information from the federal return. The guidance of Intuit currently indicates that the preparer should first complete the federal return and input any state information, allocations, and then generate the nonresident, part-year, and resident state returns.
The software will help avoid duplicating data entry, but it cannot replace the requirement of reviewing the work by a professional. Since the states do not all calculate taxable income in the same way, manual input may be required.
Choosing Between ProSeries Basic and Professional
The right ProSeries product to use depends on the nature of the returns that a company processes. ProSeries Basic is mainly used for individual Form 1040 returns, and there is a small selection of states available depending on the chosen plan. However, other states may be added to the program based on per return charges.
ProSeries Professional is tailored towards companies that require more return capacity and business returns. There are unlimited state returns available for the Professional series according to Intuit; however, pricing varies with each package.
Setting Up ProSeries for Multi-State Filings
An organized set-up process can simplify multi-state compliance. Tax preparers need to first gather the taxpayer’s federal data and then determine which states and resident statuses the taxpayer has before doing the individual state returns.
Complete the Federal Return First
In the case of multi-state returns, Intuit advises the user to complete the federal return before tackling the state returns. In this case, the user enters the appropriate income, credits, deductions, and abbreviations of state names, as appropriate.
Federal Information Worksheet includes sections on part-year and nonresident state information filing. The preparer may enter information about residency and utilize the appropriate allocation worksheets to determine the amount allocable to nonresident states.
Add the Appropriate State Returns
With the preparation of the federal information completed, the respective state returns can now be entered. The state return in ProSeries Professional can be accessed from the state controls, while in ProSeries Basic, the respective state can be selected using the State tab. According to Intuit, it is important to note that the State Information Worksheet is state-specific, hence a need for checking out the respective sections for each particular return.
In the case of a non-resident return, the respective state and residency status can be entered in the Federal Information Worksheet before preparing the state return. In turn, part-year resident returns and full-year resident returns can be prepared as required by the situation.
Allocate Income and Other Items Correctly
Allocation of Income is one of the most significant considerations while preparing multi-state returns. The taxpayer’s income might have to be allocated across various states on account of various sourcing considerations, residency, work done, business activities, or otherwise.
While ProSeries offers nonresident allocation worksheets, Intuit emphasizes that filling out such worksheets does not automatically fulfill all the requirements of each state. There could still be other entries needed in the state return.
Managing, Reviewing, and Filing Multi-State Returns
After entering all the federal and state data, tax preparers should do a review of the entire return, since automatically transferred information may not be enough. The review should involve any state-specific computations, allocations, diagnostics, and other filing requirements.
Handle Multi-State Business Returns Carefully
Extra consideration must be given to the business returns because the allocation and apportionment laws in each state vary. According to Intuit, manual entries are needed in multi-state business returns since each state can compute things differently and ProSeries will not automatically recognize where the income of the business comes from.
Dependent on the business and the states involved, it is required for the preparer to look into their sales, payroll, property, or other data that is used for the computation of the apportionment or allocation in the state.
Use Diagnostics and Perform a Final Review
ProSeries offers diagnostics and reviews that may help detect any possible problems before the filing of a return. This may prove helpful in detecting incomplete information, inconsistencies, and some state-specific problems.
It should be noted, however, that a successful diagnostic test through the use of software does not guarantee the correctness of the filed return. Tax preparers should still make sure that all residency, income source, state modifications, credits, deductions, apportionment, and other client-specific information are correct.
Complete E-Filing After Reviewing Each Return
Once the federal and state returns are prepared and approved, returns that are qualified may be electronically filed through ProSeries. E-filing eligibility and requirements may differ depending on the state, return type, and ProSeries product being used.
In the case that a state return is rejected, the preparer must go over the rejection reason and fix any errors before re-filing as needed. It will save time if you are organized and know what each state requires.
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Multi-State Workflow |
Key Action |
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Federal preparation |
Complete the federal return accurately |
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Residency review |
Identify resident, part-year, and nonresident states |
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State setup |
Add the applicable state returns |
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Income allocation |
Assign income and other items according to applicable rules |
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Business apportionment |
Review state-specific allocation requirements |
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Diagnostics |
Check for software-identified issues |
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Final review |
Compare entries with supporting documentation |
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E-filing |
Submit eligible federal and state returns |
Multi-state tax preparation can be carried out with the use of ProSeries and offer tax preparers an organized approach to handling the federal and state returns in one preparation process. The tool will automatically transfer all necessary federal data, create state worksheets, and eliminate the need for repeating the same processes in most cases.
Nevertheless, tax preparation across states involves professional evaluation. It is important to determine residency, sources of income, adjustments of the state, apportionment of business, and filing requirements depending on the client’s specifics. It is crucial to have an organized process that will include both ProSeries’ capabilities and professional evaluation.
The Fino Partners provides outsourced accounting services and tax support to help firms manage complex financial and tax-preparation workflows. Contact The Fino Partners to explore how professional support can help your firm improve multi-state tax preparation and financial processes in 2026.
