Payroll Setup Checklist for New Employers

Payroll Setup Checklist for New Employers: How to Start Payroll Correctly in 2025

Who this is for

Service-based business owners doing $500K–$5M in annual revenue who want payroll done right — on time, compliant, and aligned with tax strategy.

Why payroll mistakes happen (and how to avoid them)

Many first-time business owners think payroll is simply “writing a check,” but compliance steps are intricate:

• Not understanding tax withholdings for Social Security, Medicare (FICA), and federal/state income tax.
• Missing quarterly IRS filings (Form 941), annual requirements (W-2s), or deposit deadlines, inviting audits and penalties.
• Relying on manual spreadsheets rather than compliant payroll solutions, which opens the door to errors and missed payments.

With a clear payroll setup checklist, you can avoid all these mistakes and get payroll running smoothly from day one.

What Is Required to Set Up Payroll for a New Business?

Payroll starts long before the first paycheck. The IRS requires that every business paying employees have an Employer Identification Number (EIN). This is like a Social Security number for your business. Without it, you cannot legally process payroll, file taxes, or issue W-2s.

Beyond the EIN, most states require employers to register for state withholding accounts and unemployment insurance accounts. These accounts ensure your business can properly withhold state taxes from employees’ paychecks and pay into unemployment insurance funds.

Why this is important: If you skip this step, you may end up paying employees under the table, which can lead to fines, audits, and distrust from your staff.

Quick Example: A bakery owner hired two part-time workers and started paying them cash because she hadn’t registered for her state employer accounts. When tax season rolled around, she had no records of taxes withheld. The IRS flagged her, and she owed thousands in penalties.

How to do it right:

• Apply for your EIN on the IRS website (it’s free).

• Visit your state’s Department of Revenue and Department of Labor websites to register.

• Keep copies of all confirmations—your payroll software or accountant will need these.

By doing this first, you’re building a strong payroll foundation before your team ever clocks in.

Classify Workers Correctly

Correctly classifying workers as W-2 employees or 1099 contractors is a critical legal and financial step for any employer, especially small businesses. Misclassification can lead to substantial IRS penalties, back taxes, and legal liabilities.

How to Classify Workers

The classification hinges primarily on the degree of control and independence in the work relationship. Three main IRS criteria guide this decision:

• Behavioral Control: If the employer directs how, when, and where work is performed—using employer-provided tools and procedures—the worker is typically a W-2 employee. Employees receive training, follow the employer’s schedule, and must comply with detailed instructions.
• Financial Control: W-2 employees have their business expenses controlled and reimbursed by the company. In contrast, 1099 contractors use their own equipment, set their prices, invoice for services, and have the opportunity to realize a profit or incur a loss. They also pay their own self-employment taxes.
• Type of Relationship: Agreements, benefits, and permanency matter. W-2 employees have written contracts or implied ongoing relationships and may receive benefits (health insurance, paid time off). 1099 contractors are usually engaged for specific projects without expectation of continued work and do not receive employee benefits.

Examples

• W-2 Employee: A full-time administrative assistant who works at the company office, uses company-provided tools, follows a regular schedule, and receives employee benefits.
• 1099 Contractor: A web designer hired to complete a website project, who sets their own hours, uses their own software, works off-site, and invoices for completed milestones.

Federal and State Tests

While the IRS oversees federal guidance, state agencies and the Department of Labor apply their own tests (such as the “Economic Reality Test”) to ensure workers are not improperly excluded from wage, overtime, or unemployment protections. These tests look at economic dependence, whether the work is integral to the business, and the degree of control exercised.

Risks of Misclassification

Misclassifying a W-2 employee as a 1099 contractor can trigger IRS audits, back payroll tax demands, penalties, and potential lawsuits or wage claims. It’s safer to err on the side of employee status and consult with legal or payroll professionals when in doubt—official IRS determinations can be requested via Form SS-8.

Choose the Right Payroll System 

One of the biggest mistakes new employers make is thinking Excel is a payroll system. It’s not. Payroll is more than numbers—it’s calculations, taxes, compliance, and reports. Relying on a spreadsheet can quickly lead to errors, and when it comes to payroll, errors are expensive.

Where many go wrong: They try to DIY payroll to “save money.” In reality, they end up spending more in penalties, wasted time, and unhappy employees.

Better approach: Choose a payroll system or service that fits your business size.

• Payroll software (like Gusto, ADP, or QuickBooks Payroll): Great for small to mid-size businesses. These automate calculations, track deductions, and even file payroll taxes for you.

• Outsourced payroll services or CPAs: Best if you want a hands-off approach. You provide the hours, they handle the rest.  This is also the best option if you know you need to discuss tax planning and how to implement tax strategies.  Payroll can be a big part of saving money.  And this is exactly how we help small business owners, just like you.  Let’s talk about it 

Example: A new landscaping company used Excel to track hours and “calculated” payroll manually. The owner forgot to withhold Medicare and Social Security taxes. Six months later, he owed back taxes and penalties. When he switched to payroll software, those mistakes disappeared, and he had more time to grow his business.

Key Tip: Don’t pick a system based on cost alone—look for features like automatic filings, employee self-service portals, and deadline reminders.

Learn Withholding and Reporting Basics

This is the heart of payroll. When you pay employees, you aren’t just handing out wages—you’re also the middleman between your employees and the government.

What this means: You must withhold:

• Federal income tax (based on employee W-4 forms)

• Social Security and Medicare (FICA taxes)

• State and local taxes (if applicable)

You must also match certain contributions as the employer—like Social Security and Medicare.

Where people go wrong: Many first-time employers don’t realize they must send these withheld taxes to the IRS and state agencies on a strict schedule. They assume the money can “wait” in their account until year-end. Wrong! Late deposits lead to immediate penalties.

How to avoid this mistake:

• Set up automatic tax deposits through your payroll software.
• File quarterly Form 941 (Employer’s Quarterly Federal Tax Return).
• Provide each employee with a W-2 at year-end.

Light at the end of the tunnel: Once you understand how withholdings work, payroll stops being mysterious. You’ll know exactly how much to pull, when to send it, and how to report it.

Stay on Top of Deadlines

Payroll is a rhythm. Employees expect paychecks on time, and the government expects tax deposits and filings on time. Missing a deadline creates a ripple effect.

Why this matters:

• Late paychecks = unhappy employees and potential wage disputes.

• Late tax deposits = IRS penalties and interest.

• Late W-2s = angry employees during tax season.

Your solution: Create a payroll calendar. It should include:

• Pay dates (weekly, bi-weekly, or monthly)

• Federal tax deposit due dates (semi-weekly or monthly)

• Quarterly filing dates for Form 941

• Year-end W-2 deadlines (Jan 31 each year)

Pro Tip: Most payroll systems will generate this calendar for you and send reminders. Print it, post it, and review it regularly.

Example: A retail shop owner used sticky notes on his office wall to track deadlines. It worked until he got busy during the holiday season and missed his tax deposit. A $500 penalty arrived in the mail. After switching to a payroll service, reminders kept him on track.

Review and Adjust as You Grow

Your payroll in year one may be simple: a few employees, basic hours, and little else. But as your business grows, so will payroll complexity.

Why this is important: Payroll isn’t “set it and forget it.” Adding benefits, tracking paid time off, or setting up retirement deductions means your payroll system must adapt.

What to do:

• Review your payroll system every 6–12 months.

• Check compliance changes (minimum wage increases, tax law updates).

• Ask your employees what would make payroll easier for them (direct deposit, online pay stubs, benefits tracking).

Light at the end of the tunnel: When you build a flexible payroll foundation, you won’t just survive your first year—you’ll thrive as your company grows.

Your first year as an employer sets the tone for everything that follows. With the right payroll setup checklist, you’ll avoid rookie mistakes, keep your employees happy, and stay in good standing with tax agencies. Payroll doesn’t have to be stressful. With a little planning, the right tools, and an understanding of withholdings and deadlines, payroll can run smoothly in the background while you focus on growing your dream business.

Remember: Payroll isn’t just about paying employees—it’s about building trust, compliance, and confidence in your role as a business owner.

 

Ready to take payroll off your plate?

Aligned helps new employers set up payroll the right way—accurate withholdings, on-time filings, and stress-free compliance. Schedule a consultation today to make sure your first year runs smoothly