
Accurate books, clean reporting, and expert support, built for growing businesses in Denver and across the U.S.
Serving solo founders through established companies running multi-state operations, from our Denver office to clients in all 50 states.
- In-house team
- Secure document upload
- Year-round support
- Cloud-based tools
- All 50 states
Why Businesses Outgrow Their Accounting Setup
Nobody owns the numbers
When accounting is split between an owner, an assistant, and a spreadsheet, no one is accountable for whether the ledger is right.
Reports arrive too late to use
Financial statements that show up months after the period closed describe history. They cannot inform a hiring, pricing, or financing decision.
Growth outpaces the setup
A chart of accounts built for a one-person shop breaks once there is payroll, multiple states, or more than one entity to keep separate.
What Our Accounting Services Include
Monthly bookkeeping
Bank and credit card reconciliations, categorization, and transaction coding handled every period.
Controller services
Month-end close, financial statements, and general ledger review with a second set of eyes on the numbers.
Payroll support
Payroll processing coordination and tax filing support so wages, withholdings, and filings stay aligned.
Financial reporting
Profit and loss, balance sheet, cash flow, and KPI dashboards prepared on a set reporting cadence.
Catch-up bookkeeping
Backlogged books brought current and prepared for tax filing, one period at a time.
QuickBooks setup
Software setup, chart of accounts, and automation configured around how your business actually operates.
Sales tax filing support
Filing support coordinated with your books so remittances match recorded taxable sales.
CFO-level advisory
Strategic review of margins, cash, and forecasting for owners who need more than a monthly close.
We will recommend only the level of support your business actually needs.
What's Included
Every engagement includes the fundamentals that keep your business running smoothly.
Accuracy & Compliance
Every transaction is properly categorized, reconciled, and documented, ready for taxes, audits, or investors.
Faster Month-End Close
Get your books closed within days, not weeks. Clean financials delivered on a predictable schedule.
Clear Financials for Decisions
Understand your cash position, margins, and trends so you can make confident business decisions.
Not Sure What Accounting Support You Need?
Every business is different. Let's talk through what you're dealing with and find the right level of support, no obligation.
Full-Service Accounting Support
From daily bookkeeping to strategic CFO-level guidance, we handle every aspect of your financial operations.
Bookkeeping & Monthly Accounting
Monthly Bookkeeping
Bank/CC reconciliations, categorization, and rules
Accounts Payable
Bill tracking, vendor management, payment scheduling
Accounts Receivable
Invoicing support, deposits matching, customer tracking
Expense Management
Receipt capture workflows, policy-based categorization
Chart of Accounts Optimization
Clean structure for reporting & taxes
Class/Location/Project Tracking
Multi-location or department reporting
Controller Services & Month-End Close
Month-End Close Process
Close checklist, accrual reviews, final reconciliations
Financial Statement Preparation
P&L, Balance Sheet, Cash Flow
General Ledger Review
Coding accuracy, anomaly checks
Accruals & Adjusting Entries
Prepaids, payroll accruals, depreciation support
Internal Controls & Documentation
Audit-ready processes, approval flows
Reporting & Business Insights
Monthly Reporting Package
Executive summary + key metrics
Budgeting & Forecasting
Monthly forecast updates, scenario planning
Cash Flow Planning
Runway tracking, timing of receivables/payables
KPI Dashboards
Margin, overhead, net income, trend reporting
Job Costing / Project Profitability
For contractors and service firms
Payroll & Compliance Support
Catch-Up, Clean-Up, & Rebuilds
Not sure what you need? We'll recommend the right level of support after a quick diagnostic review.
Who We Help
Industry-specific expertise means we understand your chart of accounts, your pain points, and your goals.
Your Accounting Team
Our team handles everything from daily bookkeeping to controller-level oversight. You'll always know who's managing your account, and they'll always know your business.



"We treat every client like they're our only client."
Meet Your TeamHow It Works
A simple, proven process to get your books in order and keep them that way.
Quick Intake + Connect Accounts
Share access to your accounting software and bank feeds securely. We review your current setup.
We Clean, Reconcile & Close Monthly
Our team handles categorization, reconciliations, and month-end close on a predictable schedule.
You Get Financials + Year-Round Support
Receive clean reports, actionable insights, and ongoing guidance from your dedicated team.
How Getting Started Works
- Step 1
Schedule a free consultation
Twenty minutes to walk through your entity structure, software, and where the current process breaks down.
- Step 2
Review your current records
We assess the existing ledger, chart of accounts, and reporting to see what is usable and what needs rebuilding.
- Step 3
Receive a tailored service plan
Scope, cadence, and fee confirmed in writing before work begins, including any cleanup required first.
- Step 4
Begin ongoing accounting support
Monthly close, financial statements, and a dedicated point of contact available between reporting periods.
No obligation, and no commitment until the scope and fee are confirmed.
Why Businesses Choose Centennial Accounting Group
One team, full stack
Bookkeeping, payroll coordination, sales tax, and tax filing sit under one roof, so the records never have to be handed off.
A dedicated point of contact
Every client works with someone who understands their industry, their challenges, and their goals.
Modern cloud tooling
QuickBooks Online, Xero, and Gusto keep records organized, accessible, and current regardless of where you are located.
Support at every stage
From solo founders to established companies running multi-state operations, the scope scales with the business.
What Accounting Clients Say
"Centennial Accounting Group is always very professional and very knowledgeable. I would highly recommend them if you are looking for any financial services."
Your account is managed by our in-house Denver team, with controller-level review on the month-end close and the same professionals available year round.
What You'll Need
Gather these items before onboarding for a smooth, fast setup.
- Access to accounting software (or we can set it up)
- Bank + credit card statements / access
- Payroll provider access (if applicable)
- Prior year financials / tax return (if available)
- List of revenue streams + key expense categories
- Merchant processor access (if applicable)
Ready to Get Your Books in Order?
Whether you're starting fresh or need to clean up months of records, we make the process smooth and stress-free.
Frequently Asked Questions
Get answers to common questions about our accounting services.
Get Accurate Books and Clear Financials, Starting This Month
Book your free consultation and let our team handle the numbers.