QuickBooks x Polar: add your accounting to Polar over MCP.
Your costs live in QuickBooks; your revenue and marketing live in Polar. Connect QuickBooks over MCP and Polar reads its API to add your expenses, COGS and fees straight into your semantic layer, so contribution margin and net profit are calculated on real cost, blended with everything else Polar already governs.
/ ⏎ The costs Shopify never saw, added to your margin.
Add QuickBooks costs to Polar over MCP.
A Polar account with your stack
A Polar account with Shopify and your sources connected. QuickBooks costs blend onto the revenue Polar already governs.
Connect your data →A QuickBooks account
A QuickBooks Online account with the expense, COGS and fee data you want reflected in your P&L.
Open QuickBooks →The QuickBooks MCP
The MCP connection is how Polar reaches QuickBooks' API and writes the accounting data into your semantic layer.
Connect QuickBooks over MCP ~5 min
Map the cost data ~2 min
map COGS and fees from QuickBooks
See true profit the payoff
Make net profit real, not an estimate.
Connect QuickBooks over MCP and let Polar add your expenses, COGS and fees to the P&L, blended with the revenue it already governs.
Costs in over MCP. Real profit out.
QuickBooks
Polar
The P&L with the costs actually in it.
Added over MCP
No pipelineThe MCP takes the QuickBooks API and writes your expenses, COGS and fees straight into Polar's semantic layer, no ETL project to build.
Blended everywhere
GovernedOnce in, the accounting data behaves like any other Polar source, so margin and net profit are right across every dashboard, report and AI answer.
More Polar + QuickBooks use cases
True net profit
Revenue from Polar, costs from QuickBooks, net profit on real numbers.
See the use case › Use case 02Real COGS in margin
Product cost from accounting so profit is calculated on true cost.
See the use case › Use case 03Operating expenses in the P&L
Overhead, apps and fees that never hit Shopify, reflected in net profit.
See the use case › Use case 04Fully-loaded contribution margin
Margin after COGS, shipping, fees and ad spend.
See the use case › Use case 05Read both over MCP
Profit math across Polar revenue and QuickBooks costs, no pipeline.
See the use case ›