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How do I enter my cost of goods in Nova?

Open Costs & Taxes › COGS in the left menu. Enter a landed cost per unit for each SKU, excluding VAT if you reclaim it, and Nova applies it to every unit sold from the date you choose. The fastest way to fill it is to give your supplier file to your AI assistant: it fills the page, shows you the changes, and saves nothing until you confirm.

Checked against Nova's code on November 9, 2026

Filling COGS from a supplier file with Claude. Illustrative data.

Who can edit the COGS page?

Admins and Workspace owners. A Workspace member sees the page with a lock and an Ask to be Workspace owner button, which emails your Admins. Roles are explained in Roles and permissions.

What do I enter?

FieldWhat to put
Landed COGSWhat one unit costs you once it is ready to ship to Amazon
Manufacturing, Freight, DutiesOptional. The same cost in three lines, shown as three lines in the P&L
Valid fromThe day the cost starts. A later cost replaces it from its own date, and past days keep the old one
Input currencyThe currency you buy in. Nova converts it at the daily rate

Costs are entered per SKU. Your FBA and FBM listings of the same product are two SKUs, so each needs its own cost. When the table is grouped by ASIN, Nova rolls the SKU costs up.

Do I include VAT or GST?

Enter your COGS excluding VAT or GST when you reclaim the tax you pay your suppliers. Nova takes VAT out of your sales, so both sides then compare like with like. For costs where you cannot reclaim the tax, include it.

Do I have to fill every marketplace?

No. Each region has a primary marketplace, the one that sold most over the last 24 months, marked ★ PRIMARY at the top of the page. Its costs are mandatory. The other marketplaces show Use Europe COGS (or Canada, US) and reuse the primary's costs. Click Enter own COGS on a marketplace only when its costs differ.

Three ways to fill it

1. With your AI assistant. Click Copy the prompt in the banner at the top of the page, then drop your supplier file into Claude, ChatGPT or Gemini connected to Nova. The assistant matches your SKUs, shows what will change, and asks you to confirm before saving. See Connect Claude.

2. With a spreadsheet. Click Import / Export › Download COGS. The file holds what the table shows, with every cost period and FIFO batch. Edit it, then Import / Export › Upload COGS. Only the SKUs in your file change, and you review the changes before anything is saved.

3. Line by line. Click + Add COGS on a SKU's row.

Common mistakes

You seeWhyFix
Gross profit looks too highSome sold SKUs have no cost, so they count at 0Click Missing COGS above the table and fill the list
A SKU's cost disappeared after an uploadIts row was in your file with an empty cost cell, which removes the costFill the cell or delete the row before uploading
A marketplace still shows missing costsIt is set to Enter own COGS with nothing enteredSwitch it back to Use … COGS, or fill it
Older months show no costSome units were sold before your cost's Valid fromClick Missing history: it lists every SKU with sold units that carry no cost. Add a cost with an earlier date

Ask your AI

Which SKUs sold in the last 30 days have no cost of goods? Fill them from the file I'm attaching, show me the changes, and wait for my go.
  • Cost of goods (COGS)How Nova turns the unit costs you enter into COGS by date and marketplace, how regions share costs, FIFO batches, and what happens to a SKU with no cost.
  • How the P&L is builtThe lines of Nova's P&L from sales to net profit, what each one takes off, which day each amount lands on, and how costs are grouped.
  • VATHow Nova finds the VAT in each order, when it uses Amazon's own tax figure, how your VAT categories apply, and the order of rules it follows.

Something missing or unclear? Write to contact@novadata.io. New to Nova? Start a free trial.