Accurate payroll, on-time filings, and full compliance support, so you can pay your team with confidence.
Small business payroll and accountant payroll support serving Denver, Aurora, Centennial, Lakewood, Colorado Springs, and all 50 states.
- In-house support
- Tax-compliant payroll
- Secure onboarding
- Year-round guidance
- Multi-state coverage
Where Payroll Goes Wrong for Small Businesses
Filing deadlines do not wait
Payroll tax deposits and quarterly returns run on their own calendar. A missed date creates penalties and interest that no later payment removes.
Worker classification is easy to get wrong
Treating a worker as a contractor when the relationship looks like employment creates back-tax exposure that surfaces years later.
Multiple states multiply the rules
Each state has its own withholding registration, unemployment insurance account, and filing cadence for remote employees.
What Our Payroll Services Include
Payroll processing support
Pay runs coordinated on your schedule, with wages, withholdings, and direct deposit reviewed before each cycle.
Payroll tax filing
Federal, state, and local payroll tax deposits and returns prepared and filed on the required schedule.
W-2 and 1099 preparation
Year-end forms prepared, reconciled to the payroll records, and distributed to employees and contractors.
Payroll system setup
Payroll software configured for your pay periods, departments, and benefit deductions, including migration from an existing provider.
Multi-state payroll compliance
State withholding and unemployment registrations handled where your employees actually work.
Contractor compliance support
Contractor onboarding documentation and reporting kept in order so classification is defensible.
Free consultation to review your current payroll setup and filings.
Why Payroll Compliance Matters
Payroll isn't just about cutting checks, it's about staying compliant, protecting your business, and keeping accurate records.
Payroll errors trigger penalties quickly
Late deposits, incorrect withholdings, or missed filings can result in IRS penalties that add up fast.
Proper withholding protects owners
Getting payroll taxes wrong can create personal liability for business owners, even in an LLC or corporation.
Clean payroll integrates with your books
Accurate payroll journals flow into bookkeeping and tax prep, making year-end easier and more accurate.
The right setup saves time
A properly configured payroll system runs smoothly every pay period with minimal intervention.
Payroll Giving You Headaches?
You shouldn't have to worry about missed filings or compliance issues. We make payroll simple, so you can focus on your team.
Payroll Services
Complete payroll support from setup to year-end, processing, compliance, and integration with your books.
Payroll Processing & Support
- Employee Payroll Processing Support
Accurate processing for every pay period
- Pay Schedule Setup
Weekly, biweekly, semi-monthly, or monthly options
- Direct Deposit Coordination
Set up and manage direct deposit for employees
- PTO and Deduction Tracking Support
Track time off, benefits, and deductions
- Multi-Location or Department Payroll Tracking
Segment payroll by location, department, or project
Payroll Tax Filings & Compliance
- Federal Payroll Tax Filing Support
Forms 941 (quarterly) and 940 (annual) filings
- State Withholding and Unemployment Setup
State tax registrations and filings
- Local Payroll Tax Compliance
City and county taxes where applicable
- New Employer Registration Guidance
Federal and state employer accounts
- On-Time Deposit Scheduling Support
Avoid penalties with timely tax deposits
Year-End & Worker Reporting
- W-2 Preparation & Filing Coordination
Annual employee wage statements
- W-3 Summary Filing
Transmittal of wage and tax statements to SSA
- 1099 Contractor Reporting Support
1099-NEC forms for independent contractors
- Worker Classification Guidance
Employee vs. contractor determination support
Payroll Setup & System Integration
- Payroll System Setup
QuickBooks Payroll, Gusto, ADP, Paychex, and more
- Payroll Provider Transition Support
Smooth migration from your current provider
- Accounting Integration
Sync payroll journals to your books correctly
- Fringe Benefits and Retirement Payroll Handling
401(k), health insurance, and benefits deductions
Business Owner & S-Corp Payroll Strategy
- Owner Payroll Setup for S-Corporations
Required salary for S-Corp shareholders
- Reasonable Compensation Planning Support
IRS-compliant salary determination
- Tax-Smart Payroll Scheduling for Owners
Optimize timing of owner wages and distributions
Ongoing Support & Cleanup
- Payroll Notices Resolution Assistance
Help responding to IRS or state notices
- Cleanup of Payroll Mispostings or Errors
Correct historical payroll issues
- Coordination With Bookkeeping and Tax Prep Teams
Seamless integration across services
We don't just run payroll, we help it's compliant, properly recorded, and integrated with your financials.
Who We Help
From first employee to multi-state payroll, we help you stay compliant.
Contractors & Trades
Certified payroll, job costing, multi-state crews
Restaurants & Hospitality
Tip reporting, varying schedules, seasonal staff
Professional Services Firms
Salaried employees, bonuses, partner distributions
Medical Practices
Benefits coordination, multiple locations
Startups and Growing Teams
First-employee setup, equity considerations
Multi-State Employers
State registrations, remote employee compliance
Your Payroll Support Team
Our payroll specialists handle the details, filings, compliance, year-end forms, so you never have to worry about penalties or missed deadlines.
"We treat every client like they're our only client."
Meet Your Payroll TeamHow Payroll Works With Us
A clear process from setup to year-end, with support at every step.
Payroll Setup + Employer Registrations
We configure your payroll system, register with federal and state agencies, and set up employee records.
Run Payroll + Tax Filing Support
Process payroll each period with accurate withholdings, deposits, and quarterly tax filings.
Year-End Forms + Ongoing Compliance
W-2s, 1099s, and annual filings, plus ongoing support for notices, audits, or changes.
Most businesses can be onboarded within 1 week depending on payroll provider access.
How Payroll Onboarding Works
- Step 1
Schedule a free consultation
Walk through your headcount, pay schedule, states, and current payroll provider in about 20 minutes.
- Step 2
Review your current payroll records
We check filings, registrations, and classifications to find any gaps before they turn into notices.
- Step 3
Receive a tailored payroll plan
Scope, pay-run calendar, and fee confirmed in writing, including any cleanup of prior periods.
- Step 4
Begin ongoing payroll support
Pay runs, deposits, and filings handled each period, with year-end forms prepared on schedule.
Most transitions are timed to a quarter boundary to keep filings clean.
Why Businesses Choose Us for Payroll
Payroll tied to your books
Payroll entries flow into the same ledger our accounting team maintains, so wages and liabilities always reconcile.
Deadline ownership
Deposits and quarterly returns are tracked by our team rather than left on your calendar.
Multi-state experience
Registrations and filings handled across state lines for remote and distributed teams.
A person to call
Payroll questions go to a specialist who knows your account, not a general support queue.
What Payroll Clients Say
"I've been working with Centennial Accounting Group for over 8 years. This firm has always taken care of me. They have great prices, I trust them and I have recommended them to all my friends and family. Thank you!"
Payroll is handled in house by our Denver team and reconciled against the same ledger our accounting and tax professionals work from.
What You'll Need to Get Started
Gather these items for your payroll consultation. Don't have everything? We'll help you figure it out.
- Legal business name + EIN
- State(s) where employees work
- Payroll history (if switching providers)
- Employee details (pay rate, start date, withholding forms)
- Benefits or deductions information (if applicable)
- Access to bookkeeping/accounting software
We'll send a secure checklist and intake form after your initial consultation.
Payroll FAQs
Common questions about payroll services, tax filings, and compliance.
Payroll for Denver and the Colorado Front Range
Full-service payroll for Denver-area employers, including Colorado withholding, unemployment insurance, FAMLI, and Denver Occupational Privilege Tax. Direct deposit, tax filings, and year-end W-2s all handled locally.
Local response: Colorado + Denver-specific payroll tax filings included.
Denver Metro Cities Served
Front Range Cities Served
- Colorado Springs
- Fort Collins
- Boulder
- Longmont
- Loveland
- Greeley
- Castle Rock
- Parker
Headquartered at 3773 Cherry Creek N Dr, West Tower Suite 630, Denver, CO 80209 · Serving the entire Denver metro, Colorado Front Range, and all 50 states remotely.
Payroll Doesn't Have to Be Stressful
Let our team handle payroll compliance so you can focus on running your business.
Important disclosure about government services
Centennial Accounting Group is a private accounting firm, not a government agency, and is not affiliated with or endorsed by the IRS, the Colorado Department of Revenue, or the Colorado Department of Labor and Employment. Employer registrations and payroll tax accounts can be set up directly with those agencies at no charge. Our fees cover our professional payroll processing and compliance services only.