Amazon Ads integration with TACOS on the P&L
SeroBooks pulls Sponsored Products, Sponsored Brands and Sponsored Display spend into the ledger so you can see true profit after advertising.
Amazon Ads, handled by Sero
All three ad types
Sponsored Products, Sponsored Brands and Sponsored Display.
TACOS on the P&L
Total advertising cost of sales shown alongside revenue, not in a separate tool.
Spend in the right period
Ad costs recorded against the period they relate to, so monthly margins hold up.
Next to settlements
Ads sit beside fees, refunds and reimbursements from the Amazon integration.
Part of SeroBooks for Amazon
Included with SeroBooks for Amazon at $150/mo.
Ask Maya
Maya can answer questions about sales and spend from your own data.
One company, one login, three products that share their numbers
SeroBooks
The books, the store, the bank. One ledger.
Accounting that runs the whole business — invoicing, inventory, banking, sales tax, payroll and year-end for Canada and the United States.
SeroPOS
The point of sale built for the rush.
Point of sale for restaurants and retail — tables, kitchen tickets, inventory, loyalty and online ordering on iPad, Android, Windows and Mac.
SeroPayroll
Payroll for every province. Right to the cent.
Canadian payroll for all 13 provinces and territories — CPP, EI, QPP, vacation, stat holidays, remittances, T4s and ROEs.
Why ad spend belongs in the ledger
For many Amazon sellers, advertising is the largest cost after the product itself and Amazon’s fees. When ad spend lives only in the advertising console, the P&L overstates profit and you can’t see which months actually made money. Decisions about pricing, reorders and new products then rest on a margin figure that’s quietly wrong.
SeroBooks brings Amazon Ads spend into the general ledger. Sponsored Products, Sponsored Brands and Sponsored Display costs are recorded as advertising expenses in the accounts you choose, so the income statement shows profit after advertising. Your accountant sees the same figure you do, and year-end doesn’t involve reconstructing ad costs from console downloads.
TACOS, where you can act on it
TACOS, total advertising cost of sales, compares ad spend with all revenue, not just ad-attributed revenue. It tells you whether advertising is building the business or just buying sales that would otherwise cost nothing. A falling TACOS usually means organic sales are growing. SeroBooks shows TACOS on the P&L, so it sits beside gross margin and fees.
Because sales come from the same Amazon integration, the numerator and denominator agree. There’s no mismatch between a dashboard’s revenue figure and the one in your books, and no argument about which number is right. When you change campaign budgets, the effect on profit shows up in the same report your accountant uses for the month.
- Ad spend by type
- TACOS next to revenue and margin
- Profit after fees, refunds and ads
How it fits with the rest of SeroBooks for Amazon
Amazon Ads is one piece of SeroBooks for Amazon, alongside settlement posting, itemised fees, marketplace-facilitator tax, returns and reimbursements, inbound shipments, storage, and forecasting and replenishment. Together they give you a P&L that reflects every major cost of selling on Amazon, rather than one built only from deposits. Every figure traces back to an Amazon report you can check.
That means one system for the questions sellers ask most: what did we make, where did the money go, and what should we reorder. Maya, the AI employee in SeroBooks, can answer those questions from your own data in seconds. She drafts purchase orders and promotions but never acts without approval, and every action is audited.
Getting started
Connect Amazon Ads from SeroBooks after connecting your Seller Central account. Choose the expense accounts for advertising once, and SeroBooks posts spend from then on. If you track each ad type separately, map them to separate accounts so the P&L shows Sponsored Products, Brands and Display on their own lines.
SeroBooks for Amazon is $150/mo or $1,500/yr in USD and covers Amazon.ca, Amazon.com and Amazon.com.mx. Sellers on another SeroBooks plan can add the Amazon module for $100/mo. Try it free for 14 days, which gives you time to compare a month of ad-adjusted profit with what your current tools tell you.
Frequently asked questions
Which Amazon ad types does SeroBooks track?
SeroBooks brings in Sponsored Products, Sponsored Brands and Sponsored Display spend. Each is recorded as an advertising expense in the ledger, in accounts you choose, so your P&L reflects profit after advertising rather than before it, and you can see which ad type is costing the most.
What is TACOS?
TACOS stands for total advertising cost of sales. It’s ad spend divided by total revenue, not just ad-attributed revenue. A falling TACOS usually means organic sales are growing relative to paid ones. SeroBooks shows it on the P&L next to revenue, fees and margin, using the same sales figures as your books.
Is the Amazon Ads integration extra?
Amazon Ads is part of SeroBooks for Amazon, which costs $150 a month or $1,500 a year in USD and includes core accounting. Sellers already on another SeroBooks plan can add the Amazon module for $100 a month. There’s a 14-day free trial on every plan.
Do I need the Amazon seller integration too?
Yes. Amazon Ads works alongside the Amazon SP-API integration, which supplies settlements, fees and sales. Together they let SeroBooks show revenue, fees, refunds, reimbursements and ad spend in one P&L, which is what makes TACOS and profit after advertising accurate rather than estimated.
Can SeroBooks change my ad campaigns?
No. SeroBooks reads advertising spend for accounting and reporting. It doesn’t manage bids, budgets or campaigns. You continue to run campaigns in Amazon’s advertising console or whichever tool you use, and SeroBooks shows the financial result of those decisions in your books.