Payroll looks like a solved problem until a business starts growing. A ten-person company in Atlanta can run payroll through an app and rarely think about it. At thirty employees, with a few people working remotely in other states, a benefits plan and a mix of hourly and salaried staff, the same setup starts producing notices, amended filings and uncomfortable questions about who is exempt from overtime. At fifty, federal rules that did not apply before suddenly do.
This guide is for Atlanta employers in that growth stage. It covers the payroll tax obligations that carry personal risk, the headcount thresholds that change what the law requires, and how to decide between running payroll and HR in-house, through a service or through a PEO.
Payroll is a tax function, not a clerical one
When a business withholds income tax and the employee share of Social Security and Medicare tax from paychecks, it is holding that money in trust for the government. The obligations that follow are strict:
- Deposits on a schedule. Federal employment taxes must be deposited on a monthly or semiweekly schedule determined by the size of past liabilities, with next-day deposits required when liabilities reach a high threshold.
- Quarterly and annual returns. Form 941 each quarter, Form 940 for federal unemployment tax each year, and Georgia withholding and unemployment insurance reports on their own schedules.
- Year-end forms. Forms W-2 to employees and the Social Security Administration, and Forms 1099-NEC to contractors, generally by January 31, or the next business day when that date falls on a weekend.
The risk is personal. If withheld taxes are not paid over, the IRS can assess the trust fund recovery penalty against any responsible person who willfully failed to pay them, which can include owners, officers and employees with authority over which bills get paid. The corporate or LLC structure does not protect against it. That alone is a reason to know, every quarter, that deposits and filings reconcile to the payroll registers.
The headcount thresholds that change your obligations
Many federal employment laws apply only once a business reaches a certain size. The ones that most often catch growing companies:
- 15 employees. Title VII of the Civil Rights Act and the Americans with Disabilities Act generally apply to employers with 15 or more employees in each working day of 20 or more calendar weeks in the current or preceding year.
- 20 employees. The Age Discrimination in Employment Act and federal COBRA continuation coverage generally apply.
- 50 employees. The Family and Medical Leave Act generally covers employers with 50 or more employees, although each employee must also meet service, hours and location tests to be eligible. A business that averaged at least 50 full-time employees, including full-time equivalents, in the prior calendar year is generally an applicable large employer under the Affordable Care Act.
Georgia adds its own requirements. For example, private employers with more than ten employees must use E-Verify and provide an affidavit when obtaining or renewing a local business license or occupation tax certificate. Each threshold has its own counting rules, so the question is not just how many people are on payroll today, but how the law measures them.
Remote and multistate employees
An Atlanta company with an employee who moves to Charlotte or Nashville has not just changed a mailing address. Wages are generally subject to income tax withholding in the state where the work is performed, and unemployment insurance is generally reported to a single state based on where the employee’s services are localized. Reciprocity agreements and other state rules can change the withholding result. That usually means registering with the new state’s revenue and labor agencies before the next payroll.
A few states tax nonresidents who work remotely for employers based there, and some local jurisdictions impose their own wage taxes. An employee in another state can also create income tax or franchise tax nexus for the business itself. Our multistate tax team reviews both sides when a company’s workforce spreads out.
Overtime, exempt status and new W-2 reporting
Classifying a salaried employee as exempt from overtime requires more than a salary. Under the Fair Labor Standards Act, the employee generally must be paid on a salary basis at or above the federal minimum salary level and perform duties that meet an executive, administrative, professional or other exemption test. Job titles do not decide it. Office managers, inside sales staff and junior analysts are among the roles most often misclassified, and back overtime claims can reach several years.
Overtime also has a new reporting dimension. The 2025 federal tax law created an individual deduction of up to $12,500, or $25,000 on a joint return, for qualified overtime compensation, meaning the FLSA-required premium above the regular rate, for tax years 2025 through 2028. Employers must report qualified overtime separately, and 2026 Forms W-2 use box 12 with code TT. Payroll systems need to capture the overtime premium correctly, and that setup should be confirmed well before year-end W-2s are produced.
Benefits compliance
Benefits add filings that are easy to overlook:
- ACA reporting. Applicable large employers must offer affordable, minimum value coverage to full-time employees or risk employer shared responsibility payments, and they file annual information returns reporting the coverage offered.
- Cafeteria plans. Pre-tax premium deductions require a written Section 125 plan document.
- Health reimbursement arrangements. QSEHRAs and ICHRAs can be useful for smaller employers, with their own notice and reporting requirements. See our post on HRAs and the PCORI fee.
- Retirement plans. 401(k) plans require employee deferrals to be deposited as soon as they can reasonably be separated from company funds, annual nondiscrimination testing unless a safe harbor design is used and, for most plans, an annual Form 5500 filing.
In-house, payroll service or PEO?
There is no single right model, but the tradeoffs are consistent:
- In-house payroll software gives control and costs the least, but places the whole compliance burden on someone inside the company.
- A payroll service with CPA oversight handles processing, deposits and filings, while someone who understands the tax consequences reviews the results and handles the exceptions.
- A professional employer organization becomes a co-employer and often runs payroll under its own tax accounts and often offering access to larger-group benefits. It can simplify a lot, and it can also make leaving harder, since switching providers mid-year affects tax wage bases and benefits.
If you are considering a move, our guide on how to change payroll providers covers the timing issues.
What an HR and payroll health check covers
- Reconciliation of payroll registers to Forms 941, 940 and state filings.
- Exempt and non-exempt classifications against current job duties.
- Contractor relationships that look like employment.
- State registrations for every location where employees work.
- Form I-9 completion and retention.
- Benefit plan documents, ACA status and required notices.
- Employee handbook policies against current federal and Georgia requirements.
Our HR health check is built around that list.
Payroll and HR services from our Atlanta office
Manay CPA’s Atlanta office provides payroll, payroll tax filing and monthly HR services for employers across the metro area, with the same team able to review the accounting and tax side. Learn more about our talent solutions. We have served businesses from Georgia since 2001 and run payroll for employers with staff in multiple states.
Frequently asked questions
What is an applicable large employer under the ACA?
Generally, an employer that had an average of at least 50 full-time employees, including full-time equivalent employees, during the prior calendar year. Applicable large employers are subject to the employer shared responsibility provisions and annual ACA information reporting.
Can a business owner be personally liable for unpaid payroll taxes?
Yes. The IRS can assess the trust fund recovery penalty against responsible persons who willfully fail to collect or pay over withheld income and employment taxes. An LLC or corporation does not shield those individuals from the penalty.
Do I need to register in another state for one remote employee?
Usually yes. Wages are generally subject to withholding where the work is performed, so an employee working from another state typically requires withholding and unemployment insurance registration in that state.
What is the difference between a PEO and a payroll service?
A payroll service processes payroll and files taxes under your company’s own accounts. A PEO becomes a co-employer and often reports wages under its own tax accounts, often bundling benefits and HR support. The PEO model can simplify administration but changes how you exit the arrangement.
Talk to us
If your company has outgrown the payroll setup it started with, we can review where the gaps are and recommend a structure that fits. Book a consultation with our Atlanta team.
