Accurate and Reliable Bookkeeping Services

Helping business owners free up more time, improve their financial literacy, and create more cash flow in their business

Partnering with You to Simplify and Strengthen Your Finances

Kathy Nellessen Owner Nellessen Bookkeeping

At Nellessen Bookkeeping, my mission is to help small to medium-sized business owners simplify their finances with reliable, personalized bookkeeping services.

I am Kathy Nellessen, a certified QuickBooks ProAdvisor with over 15 years of experience and dedicated to helping entrepreneurs stay organized, maintain compliance, and gain confidence in their financial decisions.

I am passionate about making bookkeeping stress-free by offering tailored solutions - from monthly bookkeeping and financial reporting to catch-up and clean-up projects.

My goal is to give you peace of mind so you can focus on growing your business, knowing your books are accurate and up to date.

What Can I Do For Your Business?

Managing your business's finances can be overwhelming - especially when you're busy trying to grow. Whether your books are behind, messy or you're just tired of spending hours reconciling accounts, I'm here to help.

At Nellessen Bookkeeping, I provide accurate, reliable bookkeeping services that take the financial stress off your shoulders. I specialize in helping small to medium-sized business owners like you, get organized, stay compliant, and gain real clarity on where your business stands.

Here is how I can support your business:

Clean-Up & Catch-Up Bookkeeping: I'll bring your books up to date, correct past errors, and set you up for success.

Monthly Bookkeeping & Reconciliations: Consistent, accurate records that give you confidence and peace of mind.

Financial Reporting & Business Insights: No confusing spreadsheets Just clear, actionable insights to help you make informed decisions.

QuickBooks Support & Training: I ensure your system is working for you, not against you.

You don't need to manage your business finances alone. With personalized support and a stress-free process, I help you stay organized so you can focus on what you do best -

Running Your Business

Schedule Your Free Consultation

Services Offered

Build your Package to

Only What Your Business Needs

Monthly Bookeeping

Consistent and accurate monthly bookkeeping to keep your financial records organized, up-to-date, and tax-ready. Ideal for small business owners who want reliable ongoing support

Accounts Receivable & Payable w/ Receipt Management

Complete oversight of outgoing and incoming payment, plus organized receipt tracking - helping you stay on top of cash flow and financial records

Financial Reporting

Clear and easy to understand financial reports that provide you with valuable insights into your business's performance, helping you make informed decisions