Bookkeeping & Advisory for Fairfax Small Businesses
Fairfax-based bookkeeping and advisory firm serving local small businesses. Monthly financials, payroll, tax preparation, and fractional CFO support.
Bookkeeping and Advisory Services in Fairfax
ATS Bookkeeping is based right here in Fairfax, with our office on Random Hills Road. We provide full-service bookkeeping, payroll, tax preparation, and advisory support for small and mid-sized businesses throughout the city. This is home for us, and we built the firm specifically to serve business owners in this area who need reliable financial operations without the cost of hiring a full-time accounting team.
Fairfax has a dense and diverse business community. Consultants, law firms, medical practices, property investors, contractors, and nonprofits all operate here. What most of them share is a need for accurate monthly financials, clean tax records, and someone who picks up the phone when questions come up. That is what we do.
Full-Service Bookkeeping
Full-Service Bookkeeping
Transaction categorization, bank and credit card reconciliation, and monthly financial statements. Your books are closed every month and your reports are ready when you need them, without you spending your evenings in QuickBooks.
Payroll
Payroll
We run payroll every pay period, handle federal and Virginia tax deposits, file quarterly reports, and issue W-2s at year end. Your team gets paid correctly and on time while you stop tracking deadlines.
Tax Preparation and Strategy
Tax Preparation and Strategy
Business and personal returns prepared by the same people who maintain your books. No handoff confusion, no scrambling for documents in February. We also offer proactive tax strategy to help reduce your liability throughout the year.
Fractional CFO
Fractional CFO
Cash flow forecasting, financial analysis, budgeting, and strategic guidance. The CFO-level thinking that growing Fairfax businesses need without the six-figure salary that comes with a full-time hire.
Fairfax Businesses We Work With
The business landscape in Fairfax reflects its proximity to Washington, DC. There is a strong concentration of professional services, government-adjacent operations, healthcare, and real estate investment. But there are also plenty of contractors, nonprofits, and service businesses that have nothing to do with the federal government. We serve all of them as part of our broader Northern Virginia small business bookkeeping services.
Most of our Fairfax clients fall in the range of $50K to a few million in annual revenue. They have outgrown the spreadsheet-and-shoebox approach but are not ready for a full accounting department. We fill that gap with consistent, process-driven work and the kind of personal attention that larger firms often cannot offer at this level.
Professional Services
Professional Services
Law firms, consultants, IT companies, and agencies are everywhere in Fairfax. We handle the bookkeeping and payroll that these firms need to track partner distributions, reconcile client billing, and keep overhead reporting clean for decision-making.
Real Estate Investors
Real Estate Investors
Northern Virginia real estate moves fast. Investors and landlords managing rental portfolios need property-level tracking, expense categorization by unit, and financials that are ready for lenders and tax preparers. We handle all of it.
Healthcare Practices
Healthcare Practices
Medical offices, dental practices, therapy providers, and specialty clinics throughout Fairfax. We manage the timing differences between providing services and collecting insurance reimbursements, along with the day-to-day bookkeeping and payroll that keep the practice running.
Contractors and Construction
Contractors and Construction
Residential and commercial work across Fairfax County. Job costing, progress billing, and financial records that support bonding applications, bank relationships, and accurate bidding on new projects.
Frequently Asked Questions
Are you based in Fairfax?
Yes. Our office is at 11350 Random Hills Road, Suite 800. Most of our work happens through secure remote workflows, but we are right here when you want to meet in person or drop off documents.
What does monthly bookkeeping cost?
Full-service bookkeeping starts at $300 per month based on transaction volume. We provide exact pricing after reviewing your business.
Do you handle taxes or just bookkeeping?
Both. We prepare business and personal tax returns and offer year-round tax strategy. Having the same team handle your books and your returns means everything stays consistent and nothing falls through the cracks between handoffs.
My books are months behind. Where do we start?
With catch-up work. We organize and reconcile everything that has fallen behind, then transition to monthly service once you are current. Most of our clients started exactly this way.
Do you work with businesses outside of Fairfax?
Yes. We serve businesses throughout Northern Virginia and the broader DMV area. Our remote workflows make distance a non-issue, though Fairfax is home base.
Northern Virginia's Bookkeeping & Advisory Firm
First Step:
Tell Us About Your Business
Every engagement starts with a conversation. Tell us what's going on with your books and we'll give you our honest assessment.
Nearby Areas
