Bookkeeping for e-Commerce

Bookkeeping That Keeps Up
With Your Online Business

Sales Channel and Platform Reconciliation

We reconcile your sales across Amazon, Shopify, Etsy, and other platforms to your bank account -- so every dollar of revenue is captured and every fee is recorded.

Inventory and Cost of Goods

We track your cost of goods sold accurately so you always know your true margins -- not just your revenue.

Tax-Ready Books, No Surprises

We keep your books organized and up to date all year so tax season does not catch you scrambling for receipts and records.

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100+

Successful transactions completed

20+

Years of experience

$5 - 50m

Average size of transaction

$20-200m

Average market cap of clients across tech, manufacturing & services

Bookkeeping for e-Commerce Businesses and Online Sellers

What makes us different?

Running an e-commerce business means dealing with sales from multiple platforms, platform fees that come out before you even see the money, inventory that needs to be tracked accurately, and sales tax obligations across multiple states. Most general bookkeepers are not set up to handle all of this correctly — and when it goes wrong, you end up with inaccurate profit numbers, a tax nightmare, or both.

Corviniti provides bookkeeping services specifically designed for e-commerce businesses. We reconcile your sales channels to your bank account, record platform fees and fulfillment costs correctly, track cost of goods sold, and keep your books accurate so you always know what your business is actually earning.

We work with online sellers of all sizes — from solo sellers just getting organized to growing e-commerce brands with multiple sales channels and significant inventory. We make the bookkeeping straightforward so you can focus on growing your business.

We help with:
  • Sales Platform Reconciliation: Reconcile gross sales, returns, refunds, and platform fees from Amazon, Shopify, Etsy, and other channels to your bank account each month.
  • Platform Fee Recording: Record marketplace fees, payment processing fees, and fulfillment costs correctly so your profit numbers reflect actual margins.
  • Cost of Goods Sold Tracking: Track the cost of goods sold for each product or product category so you know your true gross margin.
  • Inventory Accounting: Maintain inventory records and account for purchases, sales, and adjustments accurately.
  • Sales Tax Tracking: Track sales tax collected by state to support your sales tax filing obligations.
  • Monthly Financial Statements: Deliver a clear monthly income statement that shows revenue, cost of goods, platform fees, and net profit.
  • Advertising Cost Tracking: Record advertising spend by platform so you can see the true cost of customer acquisition.
  • Tax Preparation Support: Keep records organized and ready for your accountant at tax time — including 1099-K reconciliation.

Our Bookkeeping Services

Monthly Bookkeeping

Keep your e-commerce books organized every month — reconciling sales channels, recording fees, tracking inventory costs, and delivering a clear picture of what your business actually earned.

  • Sales Channel Reconciliation: Reconcile sales from each platform to your bank account, capturing gross sales, fees, and net deposits correctly.
  • COGS Recording: Record the cost of goods sold for each period so your profit numbers reflect your actual margins.
  • Monthly Income Statement: Deliver a clear monthly income statement showing revenue, costs, and net profit.
  • Bank Reconciliation: Reconcile your bank account each month so your records match what is actually in your account.

Cleanup and Catch-Up

Get caught up if your books have fallen behind — organizing past sales, reconciling channels, and getting everything in order before moving forward.

  • Sales History Cleanup: Organize past sales from each platform and make sure revenue is recorded correctly.
  • Fee Reconciliation Catch-Up: Reconcile prior-period platform fees to ensure your historical profit numbers are accurate.
  • Bank Reconciliation Catch-Up: Reconcile bank accounts for prior months to make sure nothing has been missed.
  • 1099-K Organization: Organize 1099-K records from each platform to support tax filing.

Financial Planning & Analysis

Use your financial records to understand your margins by channel and product, and make smarter decisions about where to grow.

  • Channel Profitability Analysis: Compare net margins across sales channels, after fees, to see where you are actually making money.
  • Product Margin Analysis: Understand which products have the best margins and which are barely profitable after COGS and fees.
  • Cash Flow Planning: Plan for inventory purchases and seasonal cash needs based on your historical sales and profit patterns.

Contact us to find out more about pricing for your e-commerce business.

Why Choose Us?

Professional bookkeeping,
simple process

Corviniti handles the bookkeeping for your e-commerce business so you can focus on growing your store — not chasing down receipts and reconciling platform statements. We keep it organized, accurate, and tax-ready.

We work with online sellers at every stage of growth

Whether you are a solo seller just getting your books organized or a growing brand with multiple sales channels, Corviniti provides the bookkeeping support that e-commerce businesses need.

Contact Us To
Learn More

Tell us about your e-commerce business and what platforms you sell on. We will respond within 24 hours.

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Frequently Asked Questions

We pull the sales reports and settlement statements from each platform and reconcile them to your bank deposits. This means recording gross sales, returns and refunds, platform fees, and net payout separately — so your books show what you actually earned, not just what hit your bank account. Most e-commerce bookkeepers skip this step, which means their clients have inaccurate revenue and expense figures.

We track inventory purchases and record cost of goods sold each period based on your inventory records. The method we use — FIFO, weighted average, or specific identification — depends on your business and what makes the most sense for your products. Accurate inventory accounting is the foundation of accurate profit reporting for any product-based business.

Sales tax for e-commerce businesses has gotten more complex since the Supreme Court’s 2018 Wayfair decision, which allows states to require out-of-state sellers to collect and remit sales tax if they exceed certain economic thresholds. We track sales tax collected by state to support your compliance obligations, but we do not provide sales tax filing services — you will want to work with a sales tax specialist or use a service like TaxJar or Avalara for the filings themselves.

A 1099-K is a form that payment processors and marketplaces — Amazon, Shopify, PayPal, Stripe, and others — send to both you and the IRS reporting the gross sales processed through their platform. The gross number on the 1099-K includes fees, refunds, and other deductions, so it does not match your net revenue. We reconcile the 1099-K to your actual net revenue so your tax return reflects what you actually earned, not the inflated gross figure.

Yes. We reconcile each sales channel separately — Amazon, Shopify, Etsy, eBay, or any other platform you sell on — and combine them into a consolidated monthly view of your total business performance. We track fees and costs by channel so you can see which platforms are most profitable.

Yes. We regularly work with foreign private issuers and companies with cross-border structures, including IFRS reporting, US GAAP reconciliations, and multi-entity consolidations for companies with domestic and international subsidiaries.

In most cases, we can begin within a few days of finalizing our agreement. Our onboarding process is straightforward and does not create unnecessary delays before the actual work starts.