Welcome to Critical Calculations: Your Trusted Partner in Bookkeeping
Serving Tri-Cities TN/VA and Remotely
At Critical Calculations, we understand that every business has a unique story. Our mission is to help you write yours with confidence and clarity. Whether you’re a small startup or an established enterprise aiming for growth, maintaining robust financial health is crucial to achieving your goals. We’re passionate about assisting business owners like you in building and sustaining something remarkable.
Dozens of
Happy Clients
20+ Years of experience
Tired of Late Nights, Missed Numbers, and Constant Uncertainty?
Running a business is hard enough. When your books are disorganized or unclear, it’s even harder. You’re not just juggling customers and employees — you’re also worrying about:
Not knowing if you’re making or losing money
Dreading tax season (and potential penalties)
Wasting hours trying to “figure it out” yourself
Feeling embarrassed or overwhelmed by your financial mess
Struggling to get usable financial reports when you need them
This is where Critical Calculations steps in.
We’re not just here to input numbers — we’re here to take that weight off your shoulders and give you the tools to make confident, informed decisions.
Chaos. Confusion. Missed Deadlines.
What We Help You Eliminate
We help business owners stop:
Scrambling for receipts and bank statements at tax time
Second-guessing whether their books are accurate
Avoiding financial reports because they don’t make sense
Falling behind and playing catch-up each month
Financial Peace of Mind
What You Get Instead
With Critical Calculations, you can expect:
Clean, consistent books delivered on time each month
Easy-to-read reports that help you make real decisions
Ongoing support so you never feel alone or confused
Clear communication — we explain everything in plain English
Whether you’re just getting started or scaling quickly, we’ll make sure your finances grow with you.
"In the world of business, numbers are the storytellers, and bookkeepers are the authors."
Quote Source Unknown
Bookkeeping Packages Tailored to You
Our Most Popular Services
Your Trusted Bookkeeping Ally
Meet Lisa
Hi! I am Lisa Kodak. After years in corporate accounting and the legal field, Critical Calculations bookkeeping services was created. I’m passionate about working with other business owners and helping them really understand their finances, so they can make confident, informed decisions for their business. For me it is more than just balancing books; it’s about building relationships and being a trusted partner in your business’s success.
I believe in clear communication, personalized service and on-going support for every one of my clients. My goal is to make sure you feel supported every step of the way, giving you the freedom to focus on what you do best: growing your business.
From the moment you start working with Critical Calculations, you’ll notice that we take the time to understand your goals, challenges, and what truly drives success for your business.
Ready to Stop Guessing and Start Growing?
Let’s simplify your finances — together.
Whether you need cleanup, monthly bookkeeping, or hands-on support, I’m here to help.
Testimonials
What Our Clients Say
FAQ
Frequently Asked
Questions
We work with a wide variety of small businesses, including service providers, creatives, consultants, and trades-based businesses. Whether you’re just starting out or you’ve been operating for years, our services are customized to meet your needs.
No! While we proudly serve the Tri-Cities TN/VA area, many of our clients are located across the U.S. We use secure cloud-based tools to handle everything remotely — so you can work with us no matter where you are.
We primarily use QuickBooks Online and can help you get set up if you’re new to it. We also offer training so you or your team can feel confident using the software day-to-day.
Absolutely. One of our most popular services is book cleanup — perfect for businesses that have fallen behind or need to fix errors before moving forward. No judgment, just results.
Our pricing depends on your business size, transaction volume, and service needs. We offer flexible monthly packages as well as one-time cleanup projects. Contact us for a personalized quote.
Each package is tailored, but typically includes:
Monthly bank and credit card reconciliations
Categorization of income and expenses
Financial reporting
Ongoing support and communication
Higher-tier packages include A/R and A/P tracking, advisory support, and more.
Yes, we recommend that you retain a tax professional for preparing and filing your returns. However, we work closely with CPAs and tax preparers to ensure your books are clean, accurate, and ready at tax time — saving you time and money.
If managing your books is taking time away from growing your business — or if you’re unsure of your financial position — it’s time. We help turn uncertainty into confidence with accurate records and actionable insight.
Absolutely. We use encrypted, cloud-based systems to ensure your data is protected and backed up. Your privacy and security are our top priority
Simply contact us to schedule a free discovery call. We’ll talk through your current setup, your challenges, and how we can help — then provide a custom proposal based on your goals.