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Multi-State Business Tax Compliance

Identify your state filing obligations and prepare the agreed business tax returns.

Online service across all 50 states

Multi-State Business Tax Compliance planning and financial review

What this service is

Once a business has employees, property, or significant sales in more than one state, it may owe income or franchise tax in each of those states, and each state uses its own rules to decide how much of your profit it can tax. We determine where you have filing obligations (nexus), calculate how income is apportioned among those states, register you in the right order, prepare the state returns every year, and evaluate pass-through entity tax elections that can reduce owners' federal tax.

Forms & documents involved

State corporate and partnership returnsApportionment schedulesComposite / nonresident withholding returnsPTET elections and returnsNYC UBT / business corporation taxVoluntary disclosure agreements

What we actually do

Run a nexus study

Map where you have employees, property, sales, and remote workers, and compare that activity with each state's filing thresholds.

One-time, then annually

Calculate apportionment

Apply each state's sales-factor or multi-factor formula to determine the share of income each state can tax.

Annually

Sequence registrations

Register in new states and, where past-due exposure exists, evaluate voluntary disclosure agreements to limit penalties.

As needed

Prepare state income and franchise returns

File corporate, partnership, composite, and nonresident withholding returns in every required state.

Annually

Evaluate PTET elections

Model whether electing a state pass-through entity tax reduces owners' combined federal and state tax.

Annually

Track local taxes

Cover city and local business taxes where they apply, such as the New York City UBT and general corporation tax.

Annually

Prices by scope

Compare the work included at each price. Your final scope and fee are confirmed in writing before work begins.

Explore the pricing tool
ScopeFee
Multi-State Nexus Study

Income tax nexus review across your current states of activity.

From $720
  1. Up to 5 statesIncome tax nexus review, one entity
    $720
  2. 6–15 statesIncludes apportionment review
    $1,280
  3. 16+ statesOr multiple entities and remote workforce
    From $2,180
State Registration (per state)

Plus state filing fees, billed at cost.

From $180 per state
  1. StandardOnline registration, one tax type
    $180 per state
  2. Multiple tax typesIncome, withholding and unemployment accounts
    $320 per state
Additional State Income Tax Return

Added to your base business return.

From $160 per state
  1. SimpleAllocation only, small share of income
    $160 per state
  2. ApportionedFull apportionment factors or composite return
    $290 per state
PTET Election & Filing

Evaluation and election filing where available.

From $320 per state
  1. One-owner entityElection, estimates and annual filing
    $320 per state
  2. Multi-ownerOwner opt-ins and credit allocation
    $560 per state
Voluntary Disclosure Coordination

For states where a filing gap already exists.

From $620 per state
  1. Up to 3 yearsExposure under $25K
    $620 per state
  2. 4+ yearsLarger exposure or multiple tax types
    $1,180 per state

What You Get

Nexus Study

A review of your revenue, employees, and physical presence against each state's specific income tax nexus rules.

Apportionment Analysis

Calculating how much of your income each state can tax under its specific apportionment formula (sales, payroll, and property factors).

State Registration Sequencing

Registering in newly identified states in the right order, including voluntary disclosure where it reduces exposure on prior years.

Multi-State Return Preparation

Ongoing preparation of state income tax returns once registration and apportionment are established.

Pass-Through Entity Tax (PTET) Elections

Evaluating and filing state pass-through entity tax elections where they provide a federal deduction workaround for owners.

  • Nexus determination summary by state
  • Apportionment calculation methodology and results
  • State registration and filing calendar
  • PTET election recommendation where applicable

When this service may fit

  • You have employees, contractors, or a physical presence in more than one state
  • Revenue in a state you don't operate from has grown meaningfully
  • You are not sure whether your current state filings reflect your actual footprint
  • A state has contacted you about an unfiled return or unregistered presence

Need help getting your books ready for tax season?

A return is only as good as the books behind it. Add bookkeeping and we prepare the return from reconciled numbers.

Multi-State Business Tax ComplianceThis service
From $720
Sales Tax Nexus & RegistrationWhere you owe sales tax and how to register.About this service
From $620
Business Tax & ComplianceFederal and state business returns prepared from your books.About this service
From $780
Payroll & HR CompliancePayroll, payroll tax filings and year-end W-2s and 1099s.About this service
From $120/month

How It Works

1

Footprint review: revenue, employees, and physical presence by state

Build a jurisdiction map using business locations, employees, inventory, services, and customer sales.

2

Nexus determination and apportionment modeling

Compare activities with applicable registration and filing requirements, distinguishing income, payroll, and sales tax issues.

3

Registration sequencing, prioritizing highest-exposure states first

Prepare the agreed filings and supporting allocation or apportionment schedules, coordinating unresolved historical exposure.

4

Ongoing multi-state filing execution

Create a jurisdiction calendar and review new hiring, locations, or channels before the filing map changes again.

Your Role

Provide sales by destination, employee work locations, registrations, and prior state filings. Tell us when operations expand or a remote employee moves.

Service Scope

Each tax type and state may require separate analysis. Historical exposure, voluntary disclosures, local taxes, and legal registration work are scoped explicitly.

Start Multi-State Business Tax Compliance online

Choose the closest scope and send your request online. We’ll confirm the final work and fee in writing before anything begins.

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Frequently Asked Questions

This covers income tax nexus, whether a state can tax your business's net income. Sales tax nexus is a separate analysis with its own thresholds; see our dedicated sales tax nexus page for that side.