How to Do Payroll for a Small Business (Beginner’s Guide)
Register with the relevant tax authority as an employer, collect the required tax forms from each employee, choose a pay schedule, calculate gross pay minus tax withholdings and other deductions, and file payroll tax reports on schedule. Most small businesses use payroll software (built into or integrated with their accounting platform) to automate the calculations and filings rather than doing them by hand.
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Hiring your first employee turns you from a self-employed individual into an employer with real tax withholding and reporting obligations. It looks intimidating from the outside, but the process breaks down into a handful of repeatable steps.
Step 1: Register as an Employer
In the US, this means obtaining an Employer Identification Number (EIN) from the IRS if you don’t already have one, plus registering with your state’s labor and tax agencies. In the UK, you’ll register as an employer with HMRC and set up PAYE (Pay As You Earn). Requirements vary by country and even by state/province, so confirm the exact steps for your location before hiring.
Step 2: Collect the Required Tax Forms
| Country | Key Employee Form |
|---|---|
| USA | Form W-4 (tax withholding) and Form I-9 (employment eligibility) |
| UK | Starter checklist (or P45 from a previous employer) |
Step 3: Choose a Pay Schedule
Weekly, biweekly, semi-monthly, and monthly are all common, with the right choice depending on your industry norms, cash flow, and (in some US states) specific legal minimum-frequency requirements. Whatever you choose, consistency matters — employees plan their own finances around a predictable schedule.
Step 4: Calculate Gross Pay, Withholdings, and Net Pay
Each pay run involves calculating gross pay, subtracting required tax withholdings (income tax, Social Security/National Insurance, and any other mandated deductions), and arriving at net pay — the amount actually deposited to the employee. This is the step where payroll software earns its cost: doing these calculations by hand, correctly, for every employee, every pay period, is both time-consuming and easy to get wrong.
QuickBooks Payroll
Automates gross-to-net calculations, tax withholding, and filing directly alongside your existing QuickBooks books.
Step 5: File and Remit Payroll Taxes on Schedule
Withheld taxes need to be remitted to the relevant tax authority on a set schedule (often more frequent than your actual pay runs), along with periodic payroll tax filings. Missing these deadlines typically triggers penalties, so this is one of the areas where automated payroll software’s built-in filing reminders (or full-service filing) genuinely reduces real risk, not just admin time.
Employees vs Contractors — Get This Right First
Before running payroll at all, confirm the worker actually qualifies as an employee rather than an independent contractor — misclassification carries real tax and legal risk. See our guide on freelance vs self-employed vs sole trader status for the freelancer side of this distinction, and keep your business’s own finances cleanly separated (see how to separate business and personal finances) before adding payroll complexity on top.
Frequently Asked Questions
Do I need payroll software for just one or two employees?
It’s technically possible to run payroll manually for a very small team, but the risk of miscalculating withholdings or missing a filing deadline generally makes payroll software worthwhile even at one employee — the cost is usually modest relative to the risk it removes.
What’s the difference between gross pay and net pay?
Gross pay is the full amount earned before any deductions; net pay is what actually lands in the employee’s account after tax withholdings and any other deductions (like retirement contributions) are subtracted.
How often do I need to file payroll taxes?
This varies significantly by country, state/province, and the size of your payroll — filing frequency can range from monthly to quarterly to annually for different requirements. Confirm the exact schedule with your tax authority or payroll provider.
Final Thoughts
Payroll looks complex mainly because of the compliance stakes, not the actual math — registering correctly, collecting the right forms, and using software to handle calculations and filings turns it into a routine, repeatable process rather than a source of ongoing anxiety.
Set Up Payroll with QuickBooks
Automated calculations, tax withholding, and filing — right alongside your books.
Disclaimer: This article is for informational purposes only and does not constitute legal, tax, or accounting advice. Payroll requirements vary significantly by country, state/province, and industry — consult a qualified accountant or payroll professional for guidance specific to your situation. Affiliate links are present in this article.