The best payroll software for a small business depends on its specific needs and requirements. However, there are a few top options that consistently rank highly in terms of features, user-friendliness, affordability, and customer reviews. Here are three popular payroll software solutions for small businesses:

1. Gusto: Gusto is a widely recommended payroll software for small businesses due to its easy-to-use interface and comprehensive features. It offers automated payroll processing, tax calculations, and filings, direct deposit, and employee self-service. Gusto also handles benefits administration, time tracking, and integrates with other accounting and HR systems. It provides a user-friendly experience with an intuitive interface, making it suitable for small business owners who may not have a strong background in payroll management. Additionally, Gusto offers excellent customer support and has received positive reviews from users. (Reference: https://gusto.com/)

2. QuickBooks Payroll: QuickBooks Payroll is another popular choice for small businesses, particularly those already using QuickBooks for accounting purposes. It seamlessly integrates with QuickBooks accounting software, making it convenient for businesses to manage their finances and payroll in one place. QuickBooks Payroll offers features such as automated payroll processing, tax calculations, and filings, direct deposit, and employee self-service. It also provides additional functionalities like time tracking and benefits administration. QuickBooks Payroll is known for its user-friendly interface, extensive support resources, and a large user community. (Reference: https://quickbooks.intuit.com/payroll/)

3. ADP: ADP is a renowned payroll software provider that caters to businesses of all sizes, including small businesses. ADP offers a range of payroll solutions, including ADP Run, which is specifically designed for small businesses. ADP Run provides features like automated payroll processing, tax calculations, and filings, direct deposit, and employee self-service. It also includes additional functionalities such as benefits administration, time and attendance tracking, and HR management tools. ADP is known for its scalability, robust security measures, and excellent customer support. However, it is worth noting that ADP may be more suitable for businesses with more complex payroll needs or larger employee bases. (Reference: https://www.adp.com/)

When selecting the best payroll software for a small business, it is important to consider factors such as the size of the business, specific payroll requirements, budget, integration capabilities, and customer support. It is recommended to try out free trials or demos of different software options to determine which one best fits the business's needs. Additionally, reading customer reviews and seeking recommendations from other small business owners can provide valuable insights.