How should I record my COGS in my books?
Learn the best way to track COGS and inventory for your ecommerce business.
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All about Shopify COGS (and Amazon COGS as well)
Tracking cost of goods sold (COGS) and inventory is one of the most common pain points felt by many of you as DTC brand owners. Whether you are just selling on Shopify and/or Amazon or multichannel, configuring your COGS can be a major headache.
In order to help relieve some of this pain for you, with Finaloop, you can choose to maintain your COGS and inventory in the way that works best for you and your online business, and optimize your ecommerce inventory management, with better visibility and COGS tracking.
You have 2 options to record your COGS:
- Purchase-based COGS - Your COGS are based on your purchases of inventory-related items.
- Sales-based COGS - Your COGS are the actual cost of the products you sold, based on your input.
We'll make sure your COGS are properly synced to your financials based on your chosen method.
Let's quickly run through the pros and cons of each option so you can choose which makes more sense for you and your business.
Which method should I use to record my ecommerce COGS?
1. Purchase-based COGS
Under this method, each of your inventory purchases is categorized directly into the relevant account under cost of goods sold in your P&L (i.e., COGS, Packaging or supplies, or Shipping-in). With this method, you don't maintain an inventory balance on your balance sheet.
Typical user that uses purchase-based COGS: Smaller businesses that hold a low value of inventory each month relative to their sales and doesn't have the resources to properly track COGS on a consistent basis.
Pros
- Easier to manage - the only input we need from you each month is with respect to any uncategorized transactions as this can impact your COGS for the month. Everything else is done automatically by Finaloop.
- Real-time P&L - Your P&L is updated real-time since we're not waiting on input from you at month-end regarding your actual COGS.
Cons
- Less accurate - Without tracking your actual costs and inventory, you don't have an accurate view of your financial health. For example, if you purchase all of your inventory in one month, that month would appear to have been significantly less profitable than all other months.
- Less visibility into costs - If you don't understand how much your sales actually cost you and how much inventory you have left, you won't know when to reorder or how to better manage your costs.
2. Sales-based COGS
Under this method, we would provide you access to your inventory tracker tool. Each month, your inventory-related purchases are categorized to an inventory asset account on your balance sheet. Your monthly COGS are based on your inputs provided in the inventory tracker tool and are reflected in your P&L and balance sheet.
Using this method, your P&L would not include real-time COGS and would, thus, be inaccurate until you update the tool for each month.
Typical user that uses sales-based COGS: Larger companies with significant inventory balances at the end of the month or smaller companies that want better insight into their costs.
We generally recommend using the sales-based COGS if your unsold inventory balance at the end of each month is:
- Higher than 1% of your sales, OR
- Greater than $5,000.
Pros
- Better accuracy - COGS in your books each more are more accurate and reflect actual sales
- Better visibility into costs - You get a more insightful gross profit each month help you better manage costs and analyze the health of your business
Cons
- More complex - In order to input the correct numbers, you need to properly track COGS using an internal excel or an inventory management system.
- Delayed P&L results - Until you input your COGS each month, your P&L would be incomplete.
A quick note on cash and accrual inventory tracking for your taxes....
In most cases, if you earn income by selling inventory, COGS must be deducted based on sales-based COGS, i.e., accrual basis. With certain exceptions, this rule applies whether you file taxes on a cash basis or an accrual basis.
In other words, even if you file your tax return on a cash basis, your COGS deduction would generally be calculated based on the sales-based COGS, not purchase-based COGS.
In recent years, tax laws were changed to allow for exceptions for certain inventory-based businesses. One of these exceptions allows you to deduct COGS based on purchases (pure cash basis) if you meet certain conditions, including: (1) your average sales from the past three years are under a certain threshold, and (2) you don't actively record the value of your inventory (although inventory count is OK).
To prevent any issues in qualifying for this exception, please confirm with your CPA if an election was made to report inventory on a cash basis under Treas. Reg. §1.471-1(b). If yes, choose the purchase-based COGS to record COGS each month.
If no election was made, whether you file your taxes on a cash basis or an accrual basis, you can still choose to apply either of the methods in your books throughout the year. We will make sure to make any relevant adjustments at year-end to get your numbers tax-ready.
Excited to do your bookkeeping? Didn't think so.
That’s what we’re here for.
Accurate ecommerce books, done for you.
FAQs
When managing Cost of Goods Sold (COGS) for your Shopify or Amazon store, you have two options: purchase-based COGS and sales-based COGS. The purchase-based method records your inventory purchases directly into COGS without tracking the actual inventory levels. This method is easier to manage, but it may not provide accurate visibility into your business's true financial health (you will have big swings between different months. Think July vs November).
On the other hand, the sales-based method tracks inventory purchases and reflects actual sales, giving you a more accurate picture of your gross profit and business performance. Sales-based COGS is ideal for businesses with significant inventory or those seeking more precise financial insights.
If you're running a smaller Shopify or Amazon business with minimal inventory, purchase-based COGS may be the easiest way to manage your expenses, as it requires less tracking and offers real-time updates on your P&L. However, if your business is larger, or you want a deeper understanding of your costs, sales-based COGS is the better option. This method provides more accurate insights into your profits, helps with inventory management, and ensures a clearer view of your financial health. When businesses reach a certain maturity stage, this is definitely the way to go.
For tax purposes, most eCommerce businesses need to use sales-based COGS, regardless of whether you file taxes on a cash or accrual basis. This ensures that your COGS deduction aligns with the actual sales you’ve made. However, if you meet specific criteria, you can opt to use purchase-based COGS, but this is the exception, not the rule.


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