Zero Payroll Errors.
Zero Compliance Stress.
Every Pay Period.

No more panic on payday. No more penalty notices. Just reliable, accurate payroll.

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Loved by 300+ Firms Nationwide

Rachel Lund

Self Space

"System Six is essential to our success—trustworthy, responsive, and knowledgeable. I've referred many entrepreneurs to them."

Rich Kim

TEAH

"As a new business owner, I knew nothing about payroll, taxes, and B&O—it gave me tons of anxiety. My CPA recommended System Six as the best firm for my business. They've helped me end-to-end with finances and accounting, keeping me compliant and anxiety-free."

Mary Coday

Overlake Eye Care

"They provided invaluable leadership guidance during temporary layoffs and ramping back up. Having System Six is among the top three best decisions we've made for our practice."

Brad Borkhuis

Epitome

"I've worked with System Six for years—they're a Godsend! Extremely valuable, accurate, reliable, and always willing to go the extra mile. You won't regret it. The time and money saved paid for their services 10 times over!"

Trusted by founders, operators & CFOs from
firms between $1M–$50M+

SEE OUR CLIENTS

Success stories from businesses like yours

Discover how firms like yours reclaimed 15+ hours monthly from payroll admin, avoided five-figure penalties, and built the financial confidence that comes from knowing it's handled by experts.
View All Testimonials

WHAT WE DO

Smart Payroll. Real Humans.
Zero Payroll Errors.

From multi‑state compliance to on‑time deposits — our payroll team runs every
cycle flawlessly, so your team gets paid accurately, every single time.

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Bookkeeping Team

Automated Payroll
Processing

Run payroll without running around.

  • check icon Accurate calculations and direct deposits
  • check icon Benefits, bonuses, and withholdings handled
  • check icon Pay your team on time, every time
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Multi-State Compliance

Expand with confidence — we've got the rules covered.

  • check icon Payroll in all 50 states
  • check icon State-specific laws, filings, and insurance
  • check icon Unemployment & workers’ comp managed
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Bookkeeping Team
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Bookkeeping Team

Tax Filing & 1099s

Deadlines? Forms? Forget it — we’ve got it.

  • check icon Quarterly filings and year-end W-2s/1099s
  • check icon Local, state, and federal compliance
  • check icon Contractor classification and reporting
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15+
Years Of
Experience
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Industries We Serve

Trusted Across Multiple Industries:

  • check Consulting: Management, HR, Legal, Environmental
  • check Agencies: Marketing, Creative, Architecture, Engineering
  • check Tech: IT Services, Software Startups, Cybersecurity
  • check Search Funds & Investor Backed Companies
  • check Multi-Location Service Providers
  • check Nonprofits & Religious Organizations
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WHY FIRMS CHOOSE
SYSTEM SIX

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$100M+ Payroll processed Annually

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1,500+ Employees Across Our Client Base

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Zero Payroll Errors Reported in 3+Years

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          40+ U.S.-Based Experts with 10+ Years Average Experience          

Let’s make something great work together.

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HOW WE WORK

HOW PAYROLL WORKS
WITH US

Setup & Migration

(Week 1)

We take over your current
payroll system,
no disruption

First Payroll Run

(Week 2)

Your team gets
paid, taxes filed —
we handle everything

Set It & Forget It

(Week 3+)

We run payroll like
clockwork, so you can
focus on growth

Book a Free Consultation

FAQ

Do you manage contractors (1099s) or just W-2 employees? +
→ Both. We process W-2 payroll and track 1099 contractor payments year-round. At year-end, we handle all 1099-NEC filings (federal and state). We also advise on proper classification—misclassifying an employee as a contractor can cost $50K+ in penalties, so getting this right matters.
Will there be disruption during setup? +
→ Nope. We time the transition between pay periods so there's zero disruption. We take over all the backend work (tax filings, compliance, deposits), and your team continues getting paid on schedule via direct deposit. Most employees never even notice the switch.
Can you integrate with our time tracking system? +
→ Yes. We integrate with Harvest, Toggl, Clockify, TimeCamp, and most major time tracking platforms. Your team tracks hours in their usual system, and we import that data for payroll processing. No double-entry, no manual timesheets.
Can you handle payroll in multiple states? +
→ Absolutely. We process payroll across all 50 states. If you have remote employees or consultants working in different states, we handle all the state-specific compliance (unemployment insurance, state income tax withholding, workers' comp requirements, etc.). This is where most DIY payroll systems break down—we handle it seamlessly.
How do you handle bonuses, commissions, and variable pay? +
→ We handle all types of compensation: base salary, hourly wages, bonuses, commissions, profit-sharing, stipends, reimbursements—whatever your pay structure includes. For consulting firms with variable compensation models, this is critical. We ensure everything is taxed correctly and reported properly.
What if we have employees in states where we don't have an office? +
→ No problem. This triggers "nexus" (tax obligations) in those states, which we handle. We register you with each state's employment department, set up unemployment insurance accounts, and ensure you're compliant with local employment laws. Most businesses don't realize they need to do this—we make sure it's done right.
Do you handle benefits administration (health insurance, 401k)? +
→ We coordinate with your benefits providers. If you use Gusto for payroll + benefits, we manage that. If you have separate providers (like a 401k through Vanguard or health insurance through a broker), we ensure proper deductions are taken and remitted. We don't sell insurance or benefits, but we make sure your payroll reflects your benefit elections correctly.
Can you start mid-year or mid-quarter? +
→ Yes. We can take over anytime. We'll reconcile your year-to-date payroll data, ensure all taxes are current, and pick up seamlessly. If there are unfiled returns or outstanding tax liabilities from your previous provider, we'll help you get current first, then take over ongoing processing.

Stop Wrestling With Payroll.

Let’s make payday boring again —
in the best way.

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Get Your Numbers Working for You

Stop wrestling with books, taxes, or payroll. We’ll review your setup and show you how clean, consistent financials can unlock growth.

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Payroll

by | Nov 25, 2020

Help us Spread Cheer in 2020!

In lieu of a traditional holiday client gift this year, we decided to direct that money to a handful of non-profit organizations we’re honored to serve or support.

Please use this link to review a list of charities and then help by telling us where you think we should donate $100. THANK YOU for helping us spread a little cheer this year!

We are grateful to serve nearly 200 clients ranging from for-profits, non-profits, and faith-based organizations. It’s been one-heck of a year for each and every one of us, and we’re honored to give away some of what we’ve been blessed with this year.

 

Schools

The Children’s School Seattle

Tiny Trees

Little Hawks / Outdoor Discovery Center

Anti Human Trafficking

SAFE

Simple & Just

Rest

Rescue:Freedom

 

Faith Based Non-Profits

HRC

Made for PAX

Teleios

Churches

System Six will split the donation across each of the churches that we serve

Homelessness

Homeless Shelters in Every City Our Team Lives In