Accounting software for Amazon sellers

Amazon money, accounted for

An Amazon deposit is not revenue. It is sales minus referral fees, FBA fees, storage, ads, refunds and tax, plus reimbursements, netted together over a settlement period. Booking the deposit as one income line makes the P&L look tidy and wrong, and it leaves your accountant reconstructing the detail at year-end.

SeroBooks for Amazon connects through Amazon’s Selling Partner API and posts each settlement to the general ledger with its components. Sales, each fee type, refunds and reimbursements land in their own accounts, and the net amount reconciles to the deposit in your bank, so the books match both Amazon and the bank statement.

• Settlements posted with their components
• Order-day invoicing for sales
• Fees itemized by type
• Returns and reimbursements tracked
• Storage and inbound shipment costs recorded

Marketplace-facilitator tax, separated

On many orders Amazon collects and remits sales tax as the marketplace facilitator, and on others the obligation is still yours. Mixing the two overstates revenue or the tax you owe. SeroBooks splits marketplace-facilitator tax from the tax you are responsible for, so your returns are based on the right numbers.

Canadian sellers get GST/HST, PST and QST handling for every province and a Sales Tax Centre for filing. US sellers get sales tax and economic nexus watched across 50 states, which matters once you sell through other channels too and Amazon is no longer collecting everything for you. Either way, the tax you file is based on what you actually collected and owe.

Ads and TACOS on the P&L

Advertising is often the biggest variable cost an Amazon seller controls, yet it frequently sits outside the books in a separate dashboard. SeroBooks pulls Amazon Ads spend for Sponsored Products, Sponsored Brands and Sponsored Display into the P&L, so profit after advertising is a ledger figure rather than a spreadsheet estimate.

TACOS, total advertising cost of sales, sits alongside it. Watching TACOS rather than only ACOS shows whether ads are building organic sales or simply buying them, and having it next to fees and cost of goods makes product-level decisions much clearer. That makes it easier to decide which listings deserve more ad budget and which should be paused.

Inventory, FBA and replenishment

SeroBooks tracks inventory as real inventory, with inbound shipments to FBA, storage costs and stock valuation in the same ledger as your sales. Landed cost spreads freight and duty from your manufacturer across units, so cost of goods sold reflects what each unit actually cost to land. Inventory on hand, in transit and at Amazon stays visible in one place.

Forecast and replenishment tools help you decide what to send in and when, using demand forecasting with two lead times for production and shipping. The goal is fewer stockouts that cost ranking and fewer overstock months paying long-term storage. Seasonal peaks like the holiday quarter can be planned months ahead with the same data you use to close the books.

One system instead of a stack

Many sellers stack a settlement connector, a profit dashboard and a separate planning tool on top of their accounting software. SeroBooks for Amazon is designed to replace that stack with one ledger, at $150 USD a month with a 14-day free trial. Sellers on other SeroBooks plans can add the Amazon module for $100 USD a month.

It covers Amazon.ca, Amazon.com and Amazon.com.mx, so it is for North American marketplaces only. When you hire, SeroPayroll runs Canadian payroll from $25 USD a month, and SeroBooks Pro covers payroll for both Canada and the US in the same ledger. Team members can be given roles that limit what they see, from inventory planners to outside bookkeepers.

• Amazon.ca, Amazon.com and Amazon.com.mx
• SeroBooks for Amazon: $150 USD a month
• Amazon module add-on: $100 USD a month on other plans
• North American marketplaces only