Individual Tax Preparation for Multiple States

CPA for Multi-State Tax Returns

Moving to another state, working across state lines, owning property in another state, or receiving income from a multi-state business can turn one federal tax return into several state tax questions.

TaxReturn.cpa prepares individual tax returns involving multiple states. We look at where you lived, where income was earned or sourced, and what types of income you received to determine which state returns may be required.

Know your price, see current production availability, and decide whether to move forward without scheduling a sales call.

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Individual tax preparation starts at $650.

Why Multi-State Tax Returns Get Complicated

State income taxes do not operate under one nationwide set of residency and income-sourcing rules. The fact that income appears on your federal return does not, by itself, answer which state has the right to tax it.

A taxpayer may be a full-year resident of one state, a part-year resident of two states, or a resident of one state who also has income sourced to another state. Depending on the circumstances, more than one state income tax return may be required.

Multi-state issues can arise from wages, self-employment, rental property, pass-through businesses, stock compensation and other investments. You can see the broader individual tax situations we handle on our What We Prepare page.

Common Reasons You May Need More Than One State Tax Return

What Happens When You Move From One State to Another?

The year of a move is often the first time a taxpayer encounters a part-year resident return.

The basic question is not simply where you lived on December 31. We may need to determine when your residency changed and then identify income associated with the resident and nonresident portions of the year under the rules of the states involved.

For example, California generally taxes a part-year resident on worldwide income received while a California resident and California-source income received while a nonresident.

The exact rules vary by state, which is why the facts surrounding the move matter. Dates, employment, property, business activity and the source of particular income can all become relevant.

Remote Work Does Not Automatically Make State Taxes Simple

Remote work has made it increasingly common for an employee to live in one state while working for a company headquartered in another.

The employer's location alone does not always determine where your wages are taxable. Depending on the states involved, where you physically performed services and other state-specific sourcing rules may matter.

Travel can complicate the picture further. If you routinely worked in several states, your W-2 state reporting should be reviewed together with where you actually performed the work.

This is different from self-employment. If you operate your own business rather than working as an employee, see our CPA for Self-Employed and Schedule C Taxes page.

K-1 Income Can Create State Returns Where You Don't Live

You do not necessarily need to personally work or live in another state for a pass-through business to create a state tax issue there.

Partnerships and S corporations may conduct business in multiple states. Your K-1 package may include state-specific schedules showing income allocated or apportioned to those jurisdictions.

That information needs to be considered when determining whether nonresident returns are required and how the income is treated by your resident state.

If your return includes pass-through income, see our complete K-1 Tax Preparation guide.

Rental Property in Another State

Real estate is another common source of multi-state filing requirements.

If you live in one state but own rental property in another, the state where the property is located may tax income associated with that property. Your resident state may also include the income when calculating your resident return.

Multi-state rental returns may therefore require coordination between the resident and nonresident state returns rather than preparing each return independently.

For more information about individual returns involving rental property, visit our CPA for Rental Property Taxes page.

RSUs and Stock Compensation After Moving States

Employer stock compensation can create one of the more difficult multi-state situations.

An RSU or stock option may have been granted while you worked in one state, vest or become taxable after you moved, and then be sold while you live somewhere else. State sourcing rules can require looking at more than your residence on the date the shares vest or are sold.

California, for example, has specific sourcing guidance for equity compensation of nonresidents and people who change residency.

If your return includes restricted stock units or an employee stock purchase plan, see our CPA for RSU and ESPP Taxes page.

Will You Be Taxed Twice on the Same Income?

Seeing the same income appear on two state returns does not necessarily mean you will ultimately pay full income tax to both states on the same dollars.

Depending on the states and type of income involved, a resident state may provide a credit for qualifying income taxes paid to another state. Reciprocity agreements or other state-specific provisions may also affect the result.

These rules are not uniform. The returns need to be coordinated so that income, sourcing and any available credit are handled consistently.

What We Review for a Multi-State Tax Return

Depending on your situation, we may review:

• The states where you lived during the tax year
• Approximate dates of any permanent move
• W-2 state wages and state withholding
• Where employment services were physically performed
• Remote and hybrid work arrangements
• Schedule K-1 state schedules and supplemental statements
• Rental properties located outside your resident state
• Self-employment or business activity in other states
• RSUs, ESPPs and other employer stock compensation
• State estimated tax payments
• Prior-year state returns when relevant
• Potential credits for taxes paid to another state

Unusual residency disputes, international moves, or highly specialized state tax matters may require individual review before we determine whether the engagement fits the TaxReturn.cpa preparation process.

Moving Into or Out of California

California deserves particular attention because a move does not necessarily eliminate every California tax issue.

California generally taxes residents on worldwide income. A part-year resident is generally taxed on worldwide income received while a California resident and California-source income received while a nonresident.

After leaving California, certain income can still have a California source. Examples can include compensation for services physically performed in California, California rental income, income from a California business, and certain equity compensation connected with California services.

Boulanger CPA and Consulting PC maintains a California practice, and Marc Boulanger is a California-licensed CPA.

How Much Does a Multi-State Tax Return Cost?

Multi-state tax preparation varies significantly depending on the number of states and why those additional state returns are required.

A taxpayer who simply moved from one state to another during the year is different from someone with several K-1s, rental property, remote employment and stock compensation involving multiple jurisdictions.

Our individual tax preparation pricing is based on the overall complexity of the return. Individual tax preparation starts at $650, and the See Your Price questionnaire considers additional state returns before you decide whether to engage us.

Multi-State Does Not Have to Mean an Unpredictable Process

TaxReturn.cpa is designed so you can understand the cost and timing of your tax preparation before becoming a client.

Start by answering a few questions about your tax situation, including the states involved. You'll see your preparation price and current production availability online.

After engagement and payment, you'll choose an available production date and securely provide your tax documents.

When all required information is complete by your production date, we expect to complete your return by the end of the third week following that date, subject to significant unexpected issues.

Learn how TaxReturn.cpa works →

Frequently Asked Questions About Multi-State Tax Returns

Do I need two state tax returns if I moved during the year?

Often, but not always. A move between states can create part-year resident filing requirements in both states. The answer depends on the states involved, the timing of the move, your income and each state's filing rules.

Do I have to file in the state where my employer is located?

Not simply because your employer is located there. Where you actually performed services and the particular states' sourcing rules can affect the answer.

What if I worked remotely from another state?

Remote work can create additional state tax questions, particularly when you physically performed services in a state different from your normal residence or when the states involved apply special sourcing rules.

Can a K-1 require me to file in another state?

Yes. A partnership or S corporation may have business activity and state-source income in jurisdictions where you do not live. State K-1 schedules should be reviewed when determining your individual filing requirements.

Do I need another state return for an out-of-state rental property?

Potentially. Rental income is generally associated with the location of the real property, so an out-of-state rental can create a nonresident filing requirement.

Will I pay tax twice if two states report the same income?

Not necessarily. Depending on the states and income involved, credits for taxes paid to another state or other state-specific rules may reduce double taxation. The returns need to be prepared together to determine the appropriate treatment.

Can TaxReturn.cpa prepare California and another state?

Yes. TaxReturn.cpa prepares individual returns involving California and other states, subject to the complexity and circumstances of the return.

Have Income in More Than One State?

You don't have to determine which preparation level applies or figure out your multi-state filing requirements before contacting us.

Answer a few questions about your tax situation and we'll show you your preparation level and price before you decide whether to move forward.

Know your price. See current production availability. Know when your return is expected to be completed.

See Your Price

Reviewed by Marc Boulanger, CPA | Updated September 2026

Related: K-1 Tax Preparation  ·  RSU & ESPP Taxes  ·  Rental Property Taxes  ·  Self-Employed & Schedule C  ·  Pricing  ·  How It Works