Personal, Affordable Payroll Services, Bookkeeping, and Tax Processing for Businesses all throughout Los Angeles County.

Why ATPP and Not DIY

We are full-time professionals in accounting, taxes and payroll and have more than 20 years of experience in those areas. Finance is our business, not yours. You are too busy to personally dedicate the time to learn the intricate details of tax reporting and financial management to maximize your cash position, nor can you afford to keep a full-time financial manager on staff. You can rely on ATPP as a dependable, trustworthy and accessible partner to handle your finances and give you peace of mind to run your company. ATPP does not impound payroll taxes.

Why ATPP and not anyone else

We have years of experience giving company owners more time to manage business, keep employees motivated, and increase profits. ATPP is a small business and we know what we need for our own success. That’s why we give you the time, attention, service, and schedules that you demand. We provide accurate information. We listen to you. We respond promptly. We give honest advice.

We begin each client relationship by learning about your company at your company. We review your record-keeping systems, your financial statements and tax filings, and your projections for the coming year. We ask the questions so we know the answers when you call us with your questions. We know efficiencies when we see them – and may even recommend changes on the spot to improve your profitability.

Our work is unmatched in the Los Angeles and Southern California area. As a local company based in Los Angeles, our experts are in your time zone, your county and possibly just minutes from your office or warehouse. This can be invaluable when deadlines loom or you want face-to-face discussions about important issues.

ATPP is distinguished among outsourced payroll and financial service providers.

  • Fast document pick-up and delivery. We handle paper as efficiently as we handle data – on your schedule or on a moment’s notice.
  • Convenient to meetings. We will come to your office or you may come to ours for unlimited, off-the-clock discussions so you can make decisions quickly.
  • One-stop service. We offer a total package so all your records are in one place and accessible by all your professionals service providers.
  • Individual attention. We truly care about your business and personal success. We strive for lasting relationships. We are well-connected in the local business and professional communities and can recommend trusted advisors from among a wealth of resources.

"ATPP Saved Us Money!"

“ATPP saved us money and beat the other guys with their personalized service for all our business management needs. We’ve tried the national services and ATPP beats them on every front. Thanks ATPP.”

Winstons Bar, Andrew Fiscella, Los Angeles, CA

"My questions & situations have been resolved to the fullest!"


“I have worked with different companies over the years, and my experience with ATPP has certainly been the best by far. Your employees have been a pleasure to work with; my questions or situations have always been resolved to the fullest. I feel confident when there are changes in federal, state, or local laws that affect payroll, taxes and bookkeeping; you are always on top of everything for my business.”

Yogurt Stop, Marta Knittel, West Hollywood

"ATPP stepped in & solved our issue once and for all!"

“Every payroll service we have tried is the same UNLESS there is a problem to deal with. We were having the same issue with multiple providers until ATPP stepped in and solved it once and for all. They actually have a live person to talk to each time you call and the payroll specialist knows my name. They are truly the best!”

California Dental Group, Anna Durand, Multiple CA Locations

"ATPP is our partner in payroll!"


“In a nutshell, ATPP is our partner in payroll. The staff is professional, courteous and friendly and always there for you no matter the question comes up. We have tried the online payroll providers and the big providers and no one beats ATPP in service.”

AVN Media Network, Erica Nasser, Chatsworth, CA

"I highly recommend to businesses looking to improve the bottom line!"


“We have been using ATPP for over 7 years. We have tried ADP, Paychex and on-line services—ATPP is far superior in service and cost. I highly recommend them to all business owners looking to improve the bottom line and get better service. They are the best! Thanks ATPP!”

Good Company, Jack Merrick, Los Angeles, CA

"ATPP made my job a lot easier!"


“Having ATPP has made my job a lot easier. Your staff has always been willing to go above and beyond to keep us satisfied. Your representatives are professional and friendly and know the payroll business inside and out.”

Bnos Devorah High School

"We turn to ATPP to make sure it’s done right for us & our clients!"


“As former IRS tax attorneys, we wouldn’t trust our own payroll to just anybody. We’ve seen firsthand what payroll issues cause for business owners and so we turn to ATPP to make sure it’s done right for us and our clients.”

Holtz, Slavett & Drabkin

"ATPP made payroll seamless & stress-free!"


“We started using ATPP in 2003. We immediately loved their customer service. I would never speak to a machine like a lot of other payroll companies, we always spoke to a representative. I’ve recommended them to other business owners that I know because they have made payroll for us seamless and stress-free.”

Beth Jacob Congregation