Is there a minimum spend for Amazon PPC?

Amazon does not enforce a minimum daily spend for Sponsored Products campaigns. You can set a daily budget as low as £1. However, a budget that low will typically generate only one or two clicks per day at best, which is not enough data to make any meaningful optimisation decision. A practical minimum for generating useful data within a reasonable timeframe is a daily budget equivalent to five to ten clicks at the average CPC for your target keywords.

What percentage of revenue should I spend on Amazon PPC?

A common starting benchmark is 10 to 15% of your total product revenue on advertising (TACoS), though this varies by category competitiveness, product stage and margin. New product launches often run higher, 20 to 30% of revenue, because the goal is sales velocity rather than immediate profit. Mature products with strong organic ranking often run at 5 to 10% because the majority of sales are organic and advertising primarily supports and defends that visibility. Use your own margin and break-even ACoS as the primary guide rather than an industry percentage.

How do I know if I am spending too much on Amazon PPC?

You are spending too much on Amazon PPC if your ACoS consistently exceeds your break-even point without a deliberate launch strategy justifying the loss, or if your TACoS is rising over time without a corresponding improvement in organic ranking. The clearest signal is straightforward: if the margin generated by your total sales (organic plus paid) is less than your total advertising spend, you are subsidising your sales at a net loss. Review your search term report for non-converting spend, tighten targeting, and pause keywords that have exceeded their spend threshold without converting before considering a budget reduction.

Should I increase my PPC budget during peak seasons?

Yes, increasing budget during peak season makes sense if your campaigns are already running profitably at their current budget. Higher search volume during peak periods means more available auctions, and if your bids are competitive, your campaigns will simply exhaust their daily budget faster. Increasing budget temporarily allows you to maintain your share of the increased traffic. However, increased competition during peak periods also raises CPCs, so monitor ACoS closely: higher CPCs can push a previously profitable campaign above break-even if conversion rate does not improve proportionally.

How much should I spend on Amazon PPC?

There is no fixed rule for how much to spend on Amazon PPC. The right budget depends on your product's margin, the competitiveness of your keywords, and whether you are launching or scaling. Start with enough daily budget to collect meaningful data without overcommitting, then scale as your campaigns prove themselves. The goal of your initial budget is to collect enough click and conversion data to make informed optimisation decisions without risking more than you can afford while the campaign is unproven. A practical starting point: identify the average cost per click for your target keywords (Amazon shows suggested bid ranges in the campaign creation interface), multiply by ten, and use that as your daily budget. At ten clicks per day, you will have enough data within two weeks to see which keywords are converting and which are not. If your target keywords have an average CPC of £0.50, a starting daily budget of £5 gives you ten clicks per day. If your average CPC is £1.20, a starting budget of £12 per day achieves the same data collection rate. The budget scales with the CPC of your category, not with a fixed pound figure that applies universally. Increase your PPC budget only when your current campaigns are running profitably, meaning your ACoS is consistently below your break-even point across multiple weeks of data. If your campaigns are already profitable, increasing spend at the same efficiency level directly increases profitable sales volume. If your campaigns are not yet profitable, increasing budget amplifies the loss: you spend more to generate the same below-break-even return. When you do scale, increase daily budget in increments of 20 to 30% rather than doubling overnight. Large budget increases can destabilise a campaign's performance: Amazon's algorithm adjusts to your spend patterns and sudden changes can produce erratic delivery while the system relearns. Incremental increases give you clean before-and-after data and let you confirm that efficiency is maintained as spend grows. ACoS only measures the efficiency of your ad-attributed sales. It does not show how advertising spend relates to your total revenue including organic sales. Total Advertising Cost of Sales (TACoS) divides your total ad spend by your total revenue (organic plus paid) and gives a more complete picture of how much of your business's income is being used to fund advertising. For a mature product with strong organic ranking, TACoS will be significantly lower than ACoS because a large proportion of sales come organically. A 30% ACoS may correspond to a 10% TACoS on a product where 70% of sales are organic. As a long-term health metric, many sellers aim for a TACoS of 10 to 15% of total revenue as a sustainable advertising load, with higher rates during launch phases and lower rates once organic ranking is established. Do not increase your PPC budget if your current campaigns are running above break-even ACoS without a deliberate launch strategy justifying the loss. More spend at a loss-making ACoS produces more losses. Do not increase budget if you have not yet reviewed and optimised your search term report for non-converting queries: scaling an unoptimised campaign scales the wasted spend alongside the efficient spend. Do not increase budget if your listing is not yet converting the traffic it receives. If your conversion rate is significantly below the category average, additional spend sends more shoppers to a listing that is already failing to convince the ones it currently receives. Fix the listing first, confirm conversion rate improves, then scale the budget.

There is no fixed rule for Amazon PPC spend. Learn how to set your first budget, scale profitably and decide when to increase spend.