E-commerce moves fast. Your books and your tax obligations need to keep up — and Hartmann & Associates has been helping Northern Nevada businesses stay ahead of both for nearly five decades.

Accounting for Online Sellers Who Can't Afford to Guess on Sales Tax

Multi-State Sales Tax Is the Risk Most Online Sellers Don't See Coming

You may owe sales tax in states you've never set foot in.

The moment your online store ships to customers in other states, you may have created a tax obligation there — even if your business is based entirely in Nevada. Economic nexus thresholds vary by state, they change, and the penalties for missing them are real. Most online sellers don't discover the problem until they're already behind.

 

We provide sales tax compliance services built specifically for businesses navigating multi-state exposure. We track where you sell, identify where you have nexus, and handle the filings so you're not left guessing. If you've been selling online for a while and have never had your sales tax position reviewed, that's exactly where we start.

One Clean Set of Books, No Matter How Many Channels You Sell On

Selling across multiple online channels means your revenue data is scattered — platform payouts, payment processor deposits, refunds, and fees all hitting your bank account in ways that are hard to reconcile without a structured system. When the books don't match the deposits, you can't trust your numbers, and you can't make confident decisions about your business.

 

Our bookkeeping workflows are built around QuickBooks and designed to bring order to that complexity. We reconcile your accounts, categorize your transactions accurately, and produce financial statements that reflect what's actually happening in your business — not just what hit your bank account last month. Whether you're running a single storefront or selling across several marketplaces, we build one clear picture of your finances.

 

Our bookkeeping services for online sellers include:

 

  • Monthly transaction categorization and reconciliation across all sales channels
  • Bank and card reconciliation to catch discrepancies before they become problems
  • Accounts payable and receivable management
  • QuickBooks setup, maintenance, and cleanup for businesses switching from spreadsheets or starting fresh
  • Financial statement preparation so you always know where you stand
  • Year-end services coordinated with your tax filings

Bookkeeping That Scales as Your Store Grows

Fast growth is a good problem to have — until your bookkeeping falls two months behind and you're making inventory and payroll decisions without reliable numbers. Online businesses can scale quickly, and the accounting infrastructure that worked at $200,000 in revenue often breaks down at $800,000.

 

We work with e-commerce businesses at every stage, from early-stage sellers getting their books organized for the first time to established online retailers managing significant transaction volume. Our team handles the ongoing bookkeeping work in-house — nothing is outsourced — so you get consistent, accurate records month after month without having to manage a revolving door of contractors. As your business grows, we can also support you through business consulting and advisory services, including fractional CFO support, to help you understand your margins, plan for taxes, and make smarter decisions with your numbers.

Frequently Asked Questions

  • Do I owe sales tax in states where I don't have a physical location?

    Possibly, yes. Most states have enacted economic nexus laws that require out-of-state sellers to collect and remit sales tax once they exceed a certain sales or transaction threshold in that state — typically $100,000 in sales or 200 transactions per year. If you're shipping orders to customers across the country, you may have obligations in multiple states. We can review your sales history and help you understand where you have exposure.

  • What bookkeeping software do you use for online business clients?

    We build our bookkeeping workflows around QuickBooks, which integrates well with most online selling platforms and payment processors. If you're currently using spreadsheets or a different system, we can handle the transition and get your records organized and current before we move into ongoing monthly bookkeeping.

  • How do you handle bookkeeping when my revenue comes from multiple sales channels?

    We consolidate and reconcile all of your sales activity — regardless of how many channels or payment processors are involved — into a single, accurate set of books. That means every deposit, fee, refund, and payout is accounted for and categorized correctly each month, so your financial statements reflect the full picture of your business.

  • Can you help me catch up if my books are behind?

    Yes. Bookkeeping cleanup is one of the services we offer specifically for businesses that have fallen behind or inherited disorganized records. We'll work through the backlog, reconcile your accounts, and get you to a clean current state before transitioning to ongoing monthly bookkeeping.

  • Do you work with e-commerce businesses outside of the Reno and Sparks area?

    We do. While our office is based in Sparks, NV, and we serve businesses throughout Northern Nevada — including Reno, Carson City, Fernley, and Fallon — our virtual bookkeeping services allow us to work with online sellers wherever they're located. E-commerce businesses are a natural fit for a fully remote engagement.

Ready for Bookkeeping That's Actually Helpful?