Sales tax,sorted.
Export your Mercari sales CSV, upload it to Taxero, and get instant nexus tracking across all 50 states, with automated filing in our 19 supported states.
Connect Mercari Sales →The Mercari seller's tax reality
Marketplace facilitator status means less to file — but nexus tracking still matters.
Gross Sale Price vs. Net Seller Proceeds
Mercari charges a 10% selling fee. "Net Seller Proceeds" is the amount after fees. Taxero uses "Gross Sale Price" — the full sale amount before fees — which is what matters for sales tax and nexus threshold calculations.
Mercari is a marketplace facilitator
Mercari collects and remits sales tax to states on your behalf. You don't owe the tax directly — but your gross sales still count toward economic nexus thresholds in states where you have buyers.
What Taxero does with your data
We read every sale, aggregate by the "Shipped to State" column, and track your approach to nexus thresholds. If you sell on multiple platforms, we combine all sources for a complete picture.
Key column mapping
How to export from Mercari
Seven steps. Desktop browser required — report downloads directly as a CSV.
Go to mercari.com
Open mercari.com in a desktop browser and sign in to your seller account.
Open your profile menu
Click your profile icon in the top-right corner.
Go to Seller Dashboard
Select "Seller Dashboard" from the dropdown menu.
Click Sales Report
Click "Sales Report" in the Seller Dashboard.
Set your date range
Set your start and end dates (full calendar year recommended for annual filing).
Generate and download
Click "Generate Report", then "Download CSV" when it's ready. The file will be named Custom-sales-report-[start-date]-[end-date].csv.
Upload to Taxero
Upload the downloaded CSV to Taxero. We handle the rest automatically.
💡 File naming tip: The downloaded file will be named Custom-sales-report-[start-date]-[end-date].csv. Upload it to Taxero exactly as-is — no renaming needed.
What Taxero does with your CSV
Four automated steps from upload to compliance.
Parse
We read every row and column from your Mercari export.
Normalize
State codes standardized, gross amounts extracted, duplicates removed.
Nexus check
Sales aggregated by shipped-to state and mapped against each threshold.
File
Returns prepared and filed in our 19 supported states where you have a nexus obligation.
Columns we parse from your Mercari export
Your Mercari sales tax, handled.
Upload your first CSV and get instant nexus tracking. Free to start.
Start Free Today →