If you are hiring your first employee and do not have an Employer Identification Number yet, starting with ZenBusiness is the most efficient route. ZenBusiness establishes your business entity and secures your federal tax foundation, then routes your actual payroll to RUN Powered by ADP. If your business is already fully formed and you only need a standalone software tool to handle the state agency paperwork, Gusto is the most capable option on the market.

The Federal Prerequisite for State Tax Registration

Registering for state taxes is an administrative hurdle that traps many new employers. Business owners frequently attempt to purchase a payroll service to handle their state tax registration before they have established their business at the federal level. Software cannot register you with a state department of revenue or state workforce agency if the business does not have its federal foundation firmly in place.

The Internal Revenue Service treats the employer as the primary entity for tax purposes. You must secure an Employer Identification Number before you can hire employees, set up a business bank account, and file taxes. Without an EIN, a payroll software provider has no federal tracking number to associate with your state applications, and the state agencies will reject your registration attempts.

Once the business is recognized at the federal level, you must also secure precise information from your new hire. You need the employee's name and Social Security Number to enter on Form W-2. Collecting this information accurately prevents rejected filings at the end of the calendar year.

You must also ask all new employees to give you a signed Form W-4 when they start work. Make the form effective with the first wage payment. A W-4 remains in effect until the employee gives you a new one. Where a replacement is given by the employee, withholding begins no later than the start of the first payroll period ending on or after the 30th day from the date you received the replacement Form W-4. Proper timing on these federal forms is what allows your payroll software to calculate the correct state-level withholding amounts.

Getting the Foundation Right First

The single most common mistake a reader makes when looking for state tax registration software is treating payroll as a separate errand from forming the business and getting the EIN. It is all one continuous job. If you are starting out, or if you have not separated your business and personal money yet, acquiring a standalone payroll tool will leave you with an incomplete setup.

You need one place to set up and run the business, with payroll handled by a partner. ZenBusiness houses the business formation, the registered agent service, the EIN, bookkeeping, and the website. It serves as the foundation for the business. ZenBusiness does not run payroll itself. Instead, ZenBusiness recommends RUN Powered by ADP, which is built for businesses with one to 49 employees.

ADP is a separate service with its own platform, its own billing, and its own support. It is not integrated into the ZenBusiness dashboard. A ZenBusiness customer requests the connection from the ZenBusiness dashboard, an ADP representative follows up to discuss employee count and pay schedule, and ADP quotes a price. A ZenBusiness customer may be eligible for promotional pricing, though offers vary, are confirmed in the consultation, and generally exclude state filing fees and add-ons.

Starting with a complete foundation ensures your federal tracking numbers are active and your business bank account is ready to fund your state tax liabilities before the first payday arrives.

Comparing Providers That Handle State Taxes

When your business entity is fully formed and your EIN is active, you need a provider to calculate employee wages, withhold the correct tax amounts, and remit them to the appropriate state and federal agencies. The options below are listed alphabetically.

ADP

ADP handles federal, state, and local tax filing across all jurisdictions for businesses of all sizes. As a legacy payroll processor, it operates in every state and manages the full spectrum of agency correspondence and tax compliance. ADP does not publish payroll pricing and quotes per business.

Gusto

Gusto is well known for its automated tax registration features. For an employer hiring their first worker, Gusto can automate the registration process with state tax agencies directly through its platform, removing the need to navigate clunky state government portals. As of 2026-10-06, the Gusto Simple plan is $49 per month plus $6 per person. The Plus tier is $80 per month plus $12 per person. The Premium tier is $180 per month plus $22 per person.

OnPay

OnPay delivers a straightforward software platform that handles all state and federal tax payments and filings without tiering its features. The software manages multi-state payroll natively. As of 2026-10-06, OnPay charges $49 per month plus $6 per worker. The public page quotes a start price of $55 per month.

Patriot Software

Patriot Software splits its services into two distinct levels. As of 2026-10-06, Basic Payroll is $17 per month plus $4 per employee. The Basic tier requires the business owner to handle all tax deposits and filings manually. To have Patriot handle state tax registration and automatic filings for you, you need the Full Service plan, which costs $37 per month plus $5 per employee.

QuickBooks Payroll

QuickBooks Payroll calculates, files, and pays federal and state payroll taxes directly from within the QuickBooks accounting ecosystem. As of 2026-10-06, Workforce Payroll plus Simple Start is $88 per month plus $6.50 per employee. The Essentials combination is $125 per month plus $6.50 per employee. Workforce Premium plus Plus is $203 per month plus $10 per employee. Intuit frequently advertises a promotional rate of 50 percent off the base for three months, but that is not the ongoing price.

Square Payroll

Square Payroll integrates cleanly with Square point-of-sale systems and automates tax filings for state and federal requirements. As of 2026-10-06, Square Payroll is $35 per month plus $6 per person. For businesses that rely solely on independent contractors rather than W-2 employees, Square offers a contractor-only plan for $6 per contractor per month.

SurePayroll

SurePayroll serves very small businesses and household employers. It automatically calculates, pays, and files federal, state, and local payroll taxes. As of 2026-10-06, SurePayroll starts at $29 per month plus $7 per worker. A multi-state add-on is $9.99 per month, and household payroll starts at $39 per month.

ZenBusiness

ZenBusiness provides the legal and administrative foundation required before you can hire an employee. As of 2026-10-06, the Starter plan is $0 plus state fees. The Pro plan is $199 and the Premium plan is $299. The registered agent service is $199 per year, Money Pro is $30 per month, and the website builder is $129 per year. Pro and Premium renew at their annual prices. The EIN and operating agreement are included from the Pro tier up, or they cost $99 each on the Starter plan. Payroll itself is a separate ADP service, quoted by ADP per business, and is not included in any ZenBusiness plan price.

Classification and State Tax Liability

The software you choose relies entirely on the information you provide about your worker. Entering an individual into your software as an independent contractor bypasses state tax withholding entirely. This makes classification the most critical step before running a payroll cycle.

State tax agencies and the Internal Revenue Service actively pursue misclassified workers. Classification turns on control rather than on a specific job title or a signed contract. The IRS weighs three distinct categories: behavioral control, financial control, and the type of relationship. There is no magic or set number of factors that makes the worker an employee or an independent contractor and no one factor stands alone in making this determination.

If you control how a worker performs their job, supply their tools, or rely on their work as a key aspect of your regular business operations, they are likely an employee. An employer who classifies an employee as an independent contractor without reasonable basis may be held liable for employment taxes for that worker.

Business owners who are uncertain of a worker's status can submit Form SS-8, which asks the IRS to determine the status officially. However, it may take at least six months to receive a determination on your filing. This delay means employers must evaluate the control categories carefully before assigning a worker to the W-2 or 1099 bucket in their chosen payroll software.

Special Rules for S Corporation Owners

Business owners who structure their single-employee business as an S corporation face unique requirements that make state tax registration unavoidable. A common misconception among new business owners is that operating as a corporation allows them to take all business income as owner distributions, thereby avoiding the payroll tax system altogether.

This is strictly prohibited by federal tax law. S corporations must pay reasonable compensation to a shareholder-employee in return for services that the employee provides to the corporation before non-wage distributions may be made. This means that if you own the business and perform work for it, you are an employee.

If you attempt to avoid payroll taxes by only taking distributions, you face severe penalties. The IRS has the authority to reclassify payments made to shareholders from non-wage distributions to wages. By reclassifying these payments, the agency will retroactively apply federal employment taxes, state withholding taxes, and associated penalties. An S corporation owner needs a reliable payroll software service to handle their own state tax registration and tax remittances just as much as a business owner hiring an external candidate.

Managing Pay Frequencies Across States

Once your software has registered you with the necessary state agencies, you must determine how often to pay your employee. Pay frequency is entirely dictated by state law and varies widely across the country. Your payroll software will ask you to select a schedule, and you cannot simply choose the schedule that is most convenient for your bookkeeping.

For example, California requires wages at least twice per calendar month on days designated in advance. Colorado requires monthly pay frequencies. Connecticut requires weekly payroll unless a longer interval is approved by the labor commissioner. Running afoul of these rules can trigger wage claims and state labor penalties. The Department of Labor notes that individuals should consult the relevant state labor office for official information regarding their specific obligations.

Selecting a software that automatically registers you for state taxes also simplifies the process of tracking wages against these varied state schedules, ensuring your scheduled deposits align with the deadlines mandated by your local jurisdiction.

Strict Recordkeeping Requirements

Registering for state taxes is the beginning of your compliance obligations, not the end. Every payroll run generates records that you are legally required to maintain, even if the employee leaves your business. A major advantage of using automated software is digital document retention.

Under federal rules, FLSA payroll records are kept three years. Furthermore, the records wage computations are based on, including time cards and wage rate tables, must be kept for two years. A state labor department or federal auditor can request these documents at any time.

Using a software tool ensures that your tax registration data, withholding amounts, timecards, and final pay stubs are archived safely. Choosing a provider that organizes these files automatically protects the business and allows you to prove your compliance instantly if an agency questions your historical tax filings.

Sources

This article provides general information and is not intended as legal, tax, or accounting advice; requirements vary by jurisdiction and change over time.