Amazon Accounting for Bookkeepers: What Makes It Different?

Taking on your first Amazon seller can feel deceptively simple at first. You open the books, look at the deposits hitting the bank account, and think, “Okay, this should be straightforward.” Then you start trying to tie everything out and suddenly realize… none of it matches.

Welcome to Amazon accounting.

Amazon accounting is one of those niches that looks simple from the outside but quickly becomes its own unique puzzle once you dig in. And honestly, that’s exactly why I enjoy it. Between settlement reports, fees, reserves, and inventory movement, there are a lot of moving pieces that don’t always behave the way you expect. But once you understand the flow, it starts to make sense.

Amazon deposits are not income

One of the biggest mistakes I see newer bookkeepers make is treating Amazon deposits like regular income.

You see money hit the bank account and assume that is the sales number. It’s not. Amazon deposits are net of everything:

• Fees
• Refunds
• Advertising costs
• Adjustments
• Reserve holds

What lands in the bank account is simply what Amazon decided to pay out after taking their portion and holding back anything else they need to.

This means your bank feed is not your source of truth, Amazon is. Once you understand that mindset shift, the reconciliation process becomes much easier.

Settlement reports are the key

Unlike Shopify or Stripe, Amazon groups activity into settlement periods, usually around every two weeks. Inside those reports are all the pieces of the puzzle:

• Gross sales
• Fees
• Refunds
• Shipping activity
• Reserve changes
• Adjustments

At first glance, settlement reports can feel overwhelming. There is a lot happening inside them. But the goal is not to recreate every individual transaction line by line inside QuickBooks Online.

The real goal is to:

• Capture total sales accurately
• Break out major expense categories
• Reconcile the net deposit and reserve movement

Once you create a repeatable process around those three things, Amazon accounting becomes significantly more manageable.

Fees matter more than clients realize

Amazon sellers can have incredible sales numbers and still struggle with profitability. Why? Fees.

Amazon charges for almost everything:

• Referral fees
• FBA fulfillment fees
• Storage fees
• Advertising costs

And many sellers do not fully understand how much these costs are impacting their margins until someone clearly breaks it out for them.

This is where bookkeepers and accountants become incredibly valuable. We are not just recording transactions, we are helping clients understand where their money is actually going.

Sometimes a seller thinks they have a revenue problem when they really have a fee or operational problem. Clear reporting can help uncover that quickly.

Inventory adds another layer

If your client uses Amazon FBA (Fulfilled by Amazon), inventory accounting becomes even more important.

Now you are dealing with:

• Inventory purchases
• Inventory transfers into Amazon warehouses
• Inventory sales
• Returns
• Timing differences between purchases, sales, and payouts

This is where many newer eCommerce bookkeepers start feeling overwhelmed, because inventory movement and cash movement rarely happen at the same time.

A client might purchase inventory this month, sell it next month, and not receive payment until weeks later. If you are only looking at cash activity, you are missing the bigger picture entirely.

Understanding even the basics of inventory accounting can make a huge difference when working with Amazon sellers. And yes, inventory can absolutely get messy, but once the workflow clicks, it becomes much easier to understand how the pieces fit together.

Common Amazon accounting mistakes

Amazon accounting definitely comes with a learning curve, and honestly, we have all made mistakes while learning it. Some of the most common ones I see include:

• Recording deposits directly as income
• Ignoring reserve balances
• Not reconciling settlement reports
• Overcomplicating entries inside QuickBooks

One of the best things you can do is keep the process clean and summarized. You do not need every single Amazon transaction individually recreated in your books to have accurate financials.

Why this niche is worth learning

The truth is, Amazon accounting is not broken, it’s just different.

Once you understand:

• How settlements work
• How fees flow through the system
• How inventory timing impacts financials

…it starts feeling much less intimidating.

And if you enjoy problem-solving, systems, and figuring out workflows, this niche can be incredibly rewarding. Every Amazon seller is a little different depending on:

• Their products
• Their fulfillment setup
• Their sales channels
• Their inventory complexity

That means every client becomes its own puzzle to solve.

If you are just getting started with Amazon accounting, give yourself some grace. Start simple, build repeatable systems, ask questions, and focus on understanding the flow of data before trying to perfect everything.

The more you work with Amazon sellers, the more it starts to click, and once it does, you can provide a tremendous amount of value to your clients.