Best Payroll Services near Smithtown, NY
3 of these companies are based in Smithtown; the others serve Smithtown from towns including Hauppauge (3 mi), Central Islip (6 mi) and Port Jefferson Station (10 mi).
5 open weekends · all 15 rated 4.5+
Data verified October 21, 2026
Edwin Casanova, CPA
Raisman CPA
William Carpenter CPA
Baron Payroll
Kassman Accounting
The 15 companies listed for Smithtown, NY run payroll, filings and timekeeping for employers. Service and software details are taken from each provider's own website; ratings and quotes come from public reviews.

Area overview: Smithtown, NY
The 15 companies on this page are rated from 4.7 to 5.0 across 1,497 reviews; 6 have 50 or more reviews. The topics that come up most in reviews of the companies on this page are "knowledge", "communication" and "efficient". 5 are open on Saturdays and 1 on Sundays. The services the companies on this page list most often on their websites are tax services (8), business services (5), payroll services (4), bookkeeping (3) and business valuations (3). 1 has a BBB rating of A or A+. 12 have ten or more years of experience, the longest 59 years. 5 offer payment plans; 3 offer a free initial consultation and 1 lists coupons or special offers. We have a website on file for all 15 of the companies on this page; all 15 publish a contact page; 13 list a public email and 4 take bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book a consultation.
Why are payroll companies outside Smithtown on this page?
An office in Smithtown is held by 3 of the 15 companies. The rest come from other towns within 15 mi. Payroll is run remotely, so the filing jurisdictions a provider covers matter far more than the address. Distances are straight-line.