What this ACOS & TACoS Simulator does
Calculate advertising cost of sales, total ACOS, and break-even ROAS thresholds. The tool is part of FBA Master's free Amazon seller resource collection, covering amazon ppc advertising and campaign analysis. It is intended to help you organize the inputs and understand the result before taking action in Seller Central, with a supplier, or in your business records.
Related search topics include acos & tacos simulator, acos & tacos simulator online, free acos & tacos simulator, Amazon seller acos & tacos simulator. Choose the inputs that match your own marketplace and business situation rather than relying on default examples.
How to use the ACOS & TACoS Simulator
- Enter your monthly PPC ad spend, ad revenue, and total overall store revenue.
- Input your pre-advertising product profit margin.
- Check the live gauge: if ACOS < Margin, your advertising is directly profitable. TACOS under 10% indicates healthy organic flywheel.
Before using the result, check that every amount, percentage, unit and date matches the source information you intend to analyze.
Inputs used by this tool
The calculator displays the following fields. Your exact inputs depend on the selected tool and its available options.
- Monthly PPC Ad Spend ($)
- Ad-Attributed Sales ($)
- Total Store Revenue ($)
- Product Margin Before Ads (%)
- Average Conversion Rate (CVR) (%)
Calculation method and formula
The tool's registered calculation explanation is:
ACOS (%) = (Ad Spend / Ad Sales) * 100. TACOS (%) = (Ad Spend / Total Store Revenue) * 100. Break-Even ROAS = 1 / Net Margin. Max CPC = Target ACOS * Conversion Rate * Selling Price.
The result depends on the values you enter and the assumptions built into the tool. Where marketplace fees, carrier prices or tax rules apply, confirm the latest official figures before relying on the estimate.
Practical tips before you use the result
- Use current figures from your Seller Central reports, supplier quotation, invoice or other primary records.
- Keep the units consistent. Do not mix inches with centimetres, kilograms with pounds, or one currency with another.
- Test more than one realistic scenario when comparing prices, costs or campaign settings.
- Save or record the result you need before closing or refreshing the page.
- Keep your target TACOS below 12% to 15% for mature listings to ensure PPC promotes organic rank without eroding overall catalog profits.
- If ACOS exceeds your pre-ad margin (32%), your ad campaigns are operating at a direct per-unit loss and require negative keyword pruning.
Use recent campaign data for the inputs. Advertising performance changes by marketplace, product, keyword and date, so compare the estimate with your live campaign reports.
Worked example: ACOS & TACoS Simulator
Sample inputs:
- Monthly PPC Ad Spend ($): $2800.00
- Ad-Attributed Sales ($): $9500.00
- Total Store Revenue ($): $28000.00
- Product Margin Before Ads (%): 32%
- Average Conversion Rate (CVR) (%): 12.5%
Calculation:
- ACOS = (Ad Spend ÷ Ad Sales) × 100 = ($2,800 ÷ $9,500) × 100 = 29.5%
- ROAS = Ad Sales ÷ Ad Spend = $9,500 ÷ $2,800 = 3.39x
- TACOS = (Ad Spend ÷ Total Store Revenue) × 100 = ($2,800 ÷ $28,000) × 100 = 10.0%
- Post-Ad Net Margin = Baseline Pre-Ad Margin (32.0%) - TACOS (10.0%) = 22.0%
Result: ACOS: 29.5%, ROAS: 3.39x, TACOS: 10.0%, Post-Ad Margin: 22.0%
The campaign generates a 3.39x ROAS with advertising spend capped at 10.0% of overall catalog turnover, preserving a strong 22.0% post-ad bottom-line margin.
Tool disclaimer
This ACOS & TACoS Simulator is provided for educational and planning purposes. Results depend on the information you enter and the assumptions shown by the tool. Amazon fees, marketplace rules, tax rates, shipping charges and regulatory requirements change. Verify current figures with Amazon Seller Central, the relevant tax authority, carrier or qualified professional before making financial, tax, legal or compliance decisions. FBA Master does not guarantee accuracy for every business situation or any commercial outcome.
Frequently asked questions
What is the difference between ACOS and TACOS?
ACOS only measures ad spend against ad-generated sales. TACOS measures ad spend against total sales (organic + ad), showing your true store health.
What is a good TACOS benchmark for Amazon sellers?
Established brands aim for a TACOS between 6% and 12%. During product launch, TACOS up to 20%-30% is acceptable to rank.
How do I calculate Break-Even ACOS?
Your Break-Even ACOS is exactly equal to your pre-ad profit margin percentage. If your margin is 30%, any ACOS below 30% is net profitable.
Does the ACOS & TACoS Simulator send my entries to a server?
The calculator logic runs in your browser using the values you enter. Do not enter confidential information into a shared or public device, and save any results you need before closing or refreshing the page.
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