How should Shopify inventory be checked against QuickBooks and inventory software?
Pick a consistent cutoff date and pull reports from each system at the same point in time. If you pull Shopify at midnight Sunday but QuickBooks Monday afternoon, transactions will have moved in between and you’ll chase ghosts. Most ecommerce sellers reconcile at month-end using the last day’s closing numbers.
Compare three things in this order. First, unit counts by SKU. Shopify shows what’s available for sale on the storefront. Your inventory system (Cin7 Core, SOS Inventory, or whatever you use) shows what should physically be on hand. QuickBooks shows the accounting value behind those units. If unit counts don’t match between Shopify and your inventory system, the accounting reconciliation won’t work either.
Second, inventory value. Multiply unit counts by your cost per unit and compare to the inventory asset balance in QuickBooks. Small variances are normal due to rounding or in-transit goods. Large variances mean something didn’t post correctly, usually a sale where COGS didn’t record or a purchase that hit expenses instead of inventory.
Third, COGS for the period. Total cost of goods sold in your inventory system should match the COGS account in QuickBooks for the same date range. If you sold $40,000 in product cost through Shopify but QuickBooks shows $35,000 in COGS, $5,000 of inventory is still sitting on the balance sheet when it should have moved to the income statement.
Common causes of discrepancies include returns processed in Shopify but not pushed to the inventory system, manual adjustments made in one system without matching entries elsewhere, bundles or kits configured differently across platforms, and damaged or written-off stock that was removed from inventory but never expensed in QuickBooks. Each one needs to be tracked down and corrected at the source, not just plugged with a journal entry.
How you keep these systems aligned depends on volume. Lower-volume sellers can run month-end adjusting entries to bring QuickBooks in line with the inventory system. Higher-volume sellers usually need direct integrations so sales, COGS, and inventory movements flow automatically between platforms. Either approach works as long as someone is checking that the numbers actually agree. We support both for ecommerce businesses, whether that means monthly journal entries or configuring live syncs.
The reconciliation itself isn’t complicated, but it has to happen on a schedule. Inventory issues compound when ignored. A $2,000 variance in January becomes a $20,000 mess by December if no one investigates. Small business accounting, bookkeeping and tax services in Jacksonville, NC for ecommerce sellers should include this reconciliation as a standard part of monthly close, not something you find out is broken when you’re preparing the tax return.
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