Navigating State and Local Taxes (SALT) for Multi-Location Businesses

WHAT DOES SALT MEAN FOR A BUSINESS?

SALT stands for state and local taxes.

Depending on the business and its locations, these taxes can include:

• State income or franchise taxes
• Local income taxes
• Sales and use taxes
• Real property taxes
• Business personal property taxes
• Employer-related state taxes
• Local business taxes
• Certain excise taxes

The specific taxes that apply depend on where the business operates and what it does.

For example, a company with offices in several states may have different income tax filing requirements in each state. A retailer may also have sales tax obligations based on where it sells taxable products.

That makes multi location business tax planning more complicated than simply filing one federal tax return.

WHY MULTI-LOCATION BUSINESSES FACE MORE TAX COMPLEXITY

A business can have tax responsibilities in a jurisdiction even when it does not operate a traditional storefront there.

The relevant connection can depend on factors such as:

• Employees
• Offices
• Inventory
• Property
• Sales
• Contractors
• Business activities
• State-specific nexus rules

The concept of nexus is particularly important.

Nexus generally refers to a sufficient connection between a business and a taxing jurisdiction that can create tax or registration obligations.

The exact rules differ by state and tax type.

This means a business should not assume that having one headquarters automatically determines where all of its state tax obligations exist.

UNDERSTANDING STATE TAX NEXUS

Nexus is one of the first issues a growing multi-location business should review.

A company may establish nexus through physical activities such as maintaining an office, employing workers, or holding inventory in a state.

Economic activity can also matter for certain taxes.

For example, remote sales can create sales tax obligations under state economic nexus rules even when the seller does not have a traditional physical location in the state.

The rules are different for different taxes, so a business should avoid using one nexus test for every tax obligation.

A company may have a sales tax obligation in a state without having the same type of income tax filing requirement, or vice versa.

STATE INCOME TAX AND MULTI-STATE OPERATIONS

When a business operates in multiple states, determining how much income belongs to each state can become a significant issue.

States generally have their own rules for determining taxable income and how multi-state business income is apportioned or allocated.

Depending on the business and jurisdiction, calculations can involve factors such as:

• Sales
• Payroll
• Property
• Receipts
• Business activity within the state

The exact formula varies.

This is why a business expanding into a new state should review the state's rules before assuming that its federal taxable income can simply be copied onto another state's return.

SALES TAX IS A SEPARATE ISSUE

State and local sales taxes create another layer of compliance.

A business may need to determine:

• Whether it has sales tax nexus
• Whether its products or services are taxable
• Which jurisdiction's tax rules apply
• Whether registration is required
• How much tax should be collected
• When returns must be filed
• How collected tax must be remitted

Sales tax is particularly important for businesses that sell through websites, marketplaces, or multiple physical locations.

The business should also distinguish between tax it collects from customers and revenue belonging to the business.

Sales tax collected from customers generally is not treated as the business's own gross income for federal income tax purposes when the business is required to collect and remit it. The IRS specifically cautions businesses not to include sales taxes imposed on buyers that the business must collect and pay over to a state or local government in gross receipts or sales.

LOCAL TAXES CAN BE EASY TO OVERLOOK

Businesses often focus on state-level taxes and forget that counties, cities, and other local jurisdictions can impose their own taxes and fees.

Depending on the location, a business may encounter:

• Local business taxes
• Local sales taxes
• Property taxes
• Business license taxes
• Local payroll-related requirements
• Personal property taxes

A business with several locations should maintain a location-by-location compliance record.

For example, an office in one city may have requirements that do not apply to an office in another city within the same state.

PROPERTY TAXES FOR BUSINESS LOCATIONS

Businesses that own property may also have state and local property tax responsibilities.

Property taxes can apply to real estate and, depending on the jurisdiction, certain business personal property.

For federal purposes, the IRS generally allows businesses to deduct certain state and local taxes that are directly attributable to the business. Business real estate taxes and qualifying personal property taxes can be among those deductible expenses.

However, state and local treatment can differ from federal treatment.

Businesses should therefore keep property tax records separate by location and understand which entity owns the property.

WHAT DOES THE SALT DEDUCTION MEAN?

The term "SALT deduction" is often used in discussions about the federal individual tax deduction for certain state and local taxes.

This is different from the general question of whether a business can deduct state and local taxes as business expenses.

For individuals who itemize deductions, the federal SALT deduction includes certain state and local income taxes, general sales taxes, real property taxes, and personal property taxes.

For 2026, the overall individual SALT deduction limit is generally $40,400, or $20,200 for married taxpayers filing separately, subject to an income-based limitation that can reduce the deduction. The limit can change under future tax law.

This is important for business owners because the federal treatment can depend on how the business is structured.

A sole proprietor, partnership, S corporation shareholder, and C corporation can have different tax consequences.

Therefore, business owners should not assume that the individual SALT limit applies directly to every state or local tax paid by the business.

BUSINESS TAXES AND PERSONAL SALT ARE NOT THE SAME THING

This distinction is particularly important for pass-through businesses.

A business may pay certain taxes directly at the entity level, while other state and local taxes may be imposed on the individual owner.

For example, the IRS explains that certain taxes directly attributable to a business can be deductible as business expenses, while personal state and local income taxes may be subject to the individual SALT deduction rules.

The correct treatment depends on the type of tax, who is legally responsible for the tax, how the business is structured, and the applicable federal and state rules.

PASS-THROUGH ENTITY TAXES NEED ATTENTION

Some states have enacted entity-level tax regimes for partnerships and S corporations.

These regimes can affect how state taxes are calculated and how owners receive corresponding state tax benefits.

The federal treatment of these arrangements can also involve specific rules and guidance.

The IRS has recognized that state and local taxes imposed at the entity level can have different federal consequences from taxes paid directly by individual owners.

Because pass-through entity tax rules vary by state, a business operating across several states should review each state's treatment rather than applying one general assumption.

COMMON SALT MISTAKES FOR MULTI-LOCATION BUSINESSES

1. Assuming One State's Rules Apply Everywhere

Each state can have its own tax laws, definitions, filing requirements, and thresholds.

Expanding into a new state should trigger a tax review rather than simply adding the location to an existing return.

2. Failing to Monitor Nexus

A business may develop a new tax obligation as its activities change.

Hiring employees, opening an office, adding inventory, or increasing sales can affect the company's tax position.

3. Treating Sales Tax as Revenue

Sales tax collected from customers may be a liability that must be remitted rather than income belonging to the business.

Keeping sales tax accounts separate can make reconciliation easier.

4. Overlooking Local Requirements

A company may register with a state but still have additional local requirements.

Businesses should review city and county obligations for each location.

5. Using Inconsistent Location Data

If the accounting system, payroll system, sales platform, and tax returns contain different location information, tax calculations can become difficult to verify.

Businesses should establish consistent location tracking.

6. Waiting Until Tax Filing Season

Multi-state tax compliance should not be treated as an annual exercise.

Nexus, registration, payroll, sales tax, and estimated tax obligations can arise throughout the year.

A PRACTICAL SALT COMPLIANCE FRAMEWORK

A growing business can make multi-state compliance more manageable by creating a tax profile for every location.

For each state or local jurisdiction, track:

Physical Presence

Record offices, stores, warehouses, employees, and property.

Sales Activity

Track revenue by customer location and applicable sales tax jurisdiction.

Payroll

Identify where employees perform services and which state payroll requirements apply.

Property

Track real estate and business personal property by location.

Tax Registrations

Maintain a list of state and local registrations.

Filing Deadlines

Record income tax, sales tax, payroll tax, and local filing deadlines.

Tax Payments

Reconcile estimated payments and actual liabilities.

Tax Notices

Keep state and local tax correspondence organized by jurisdiction.

This creates a centralized compliance record that can be updated as the company expands.

HOW ACCOUNTING SYSTEMS CAN HELP

Good accounting data can make multi-location tax compliance much easier.

Businesses should consider organizing financial information by:

• State
• City
• Business location
• Legal entity
• Revenue source
• Tax type

For example, a company with three offices can configure its accounting and payroll processes so that expenses and employee activity are associated with the appropriate location.

Sales systems can also help identify where transactions occur and whether sales tax has been collected.

The goal is to create financial records that support tax reporting rather than trying to reconstruct everything at the end of the year.

WHAT SHOULD A BUSINESS DO BEFORE OPENING A NEW LOCATION?

Tax planning should begin before expansion.

Before opening a new office, store, warehouse, or other location, review:

• State income tax requirements
• Sales tax requirements
• Payroll registration
• Local business licenses
• Property tax requirements
• Business personal property rules
• Nexus considerations
• Estimated tax payments
• Entity registration
• Local filing deadlines

This review can identify requirements before the new location begins operating.

It can also help the business budget for additional compliance costs.

WHEN PROFESSIONAL SALT SUPPORT CAN HELP

Multi-state tax compliance becomes more complex as a business grows.

Professional assistance can be useful when a company:

• Operates in multiple states
• Has employees in several states
• Opens new locations
• Sells products nationwide
• Uses multiple legal entities
• Owns property in different jurisdictions
• Receives state or local tax notices
• Is unsure where it has nexus
• Is evaluating a new state for expansion
• Needs help reconciling state tax payments

A tax professional can help organize the company's state and local obligations and identify areas that need additional review.

FINAL THOUGHTS

Managing state and local tax compliance is an important part of operating a multi-location business.

The challenge is that there is no single SALT rule that answers every question.

State income taxes, sales taxes, payroll taxes, property taxes, and local business taxes can each have different requirements.

The federal SALT tax deduction is also a separate issue from the broader question of whether a business has state or local tax obligations. For 2026, the federal individual SALT deduction limit is generally $40,400, subject to the applicable income limitation, while certain taxes directly attributable to a business may receive different federal treatment.

For businesses operating across multiple locations, the most useful approach is to maintain accurate records by jurisdiction, monitor nexus, keep registrations current, and review tax obligations before expanding into new markets.

If your business operates in multiple states or is planning to open a new location, schedule a tax consultation with CBA Financials to review your state and local tax compliance needs and build a more organized approach to multi-location tax management.