Discover how psychological pricing boosts your sales. Pricing strategies, charm pricing, anchoring: optimise your e-commerce pricing effectively.
You’ve surely noticed it while shopping or scrolling through an e-commerce site: that famous price ending in 99 cents. €9.99 instead of €10. €19.90 rather than €20. Behind this small detail lies a well-honed science: psychological pricing. This simple decimal point can boost your conversions by 20 to 30%.
In this article, we break down together the mechanisms of pricing, those pricing strategies that play with our brain to push us towards a purchase.
Why our brain prefers €9.99 to €10
The human brain is lazy. It looks for shortcuts to process information quickly. Faced with a price, it doesn’t read all the digits the same way; it stops at the first one.
In practical terms, when you see €9.99, your brain first reads “9” and unconsciously categorises the product in the “9 euros” bracket. Even if rationally you know the difference with €10 is ridiculous, the impression of paying “less than €10” stays anchored. This phenomenon of cognitive anchoring directly influences your perception of value.
Neuroscience studies conducted by MIT have shown that this price-setting technique activates the brain’s reward zones. In other words, paying €9.99 provides a micro-satisfaction: that of having got a “good deal”.
Which strategy for your sector?
The main principles of psychological pricing
E-commerce pricing isn’t just about the cents. Several psychological mechanisms come into play to influence the purchase decision. Let’s decode the main ones.
Charm pricing: the star of the 9
“Charm pricing” refers to that famous 0.99 technique. It rests on the idea that our brain unconsciously rounds down. The result: €9.99 seems significantly cheaper than €10, even though the real gap is one cent.
Several large retailers and online retail brands have run A/B tests on their sites: a product sold at €19.99 generates on average 24% more sales than the same product at €20.
Price anchoring: creating a point of comparison
Anchoring is the art of setting a high first price to make the next one more attractive. You’ve already seen those “Original price: €299 / Sale price: €199” offers? Your brain automatically uses the first figure as a reference. Even if the product was never worth €299, you get the impression of striking a great deal.
This pricing strategy works particularly well in competitive environments. By creating a contrast, you influence the perception of value without touching your real margin.
Prestige pricing: when expensive reassures
Conversely, some sectors play the round, high price card: luxury, high-end tech, strategic consulting. Here, a price of €5,000 inspires more confidence than a price of €4,999. Why? Because the brain associates the round figure with quality, exclusivity, premium.
In this case, the pricing strategy aims to create distance from the mass market and to position the product as an investment.
How to apply psychological pricing in your business
Here’s how to intelligently integrate psychological pricing into your pricing strategy.
Adapt pricing to your positioning
First rule: there’s no universal pricing. A B2C e-commerce business selling everyday products won’t use the same codes as a B2B consulting agency.
For a mainstream e-commerce site, favour charm pricing (€9.99, €49.90). For a premium or B2B service, opt for round prices that inspire confidence (€500, €2,000). Pricing optimisation comes from a fine understanding of your target and their expectations.
Test, measure, adjust
What works for your competitor won’t necessarily work for you. The key: test continuously. Launch A/B tests on your product pages. Compare €19.99 vs €20, €99 vs €100. Analyse the conversion rate, the average basket, the abandonment rate.
You can also explore specialised dynamic pricing solutions that automatically adjust your rates based on demand, competition and user behaviour. The Harvard Business Review actually details the best practices in dynamic pricing to optimise your margins without sacrificing volume.
How your brain perceives price
Playing on visual presentation
Psychological pricing isn’t limited to the figure. The way you display the price matters just as much. A few proven tips:
- Reduce the font size of the cents to accentuate the “less than €10” effect
- Remove the € symbol when possible (studies show that a price without a currency seems cheaper)
- Use warm colours (red, orange) for struck-through prices and cool colours (green, blue) for final prices
- Position your offers from left to right in ascending price order: the brain naturally reads in this direction and better perceives the move up in range
These micro-optimisations seem anecdotal, but cumulatively they can inflate your conversion rate by several points.
FAQ: everything you need to know about psychological pricing
Does psychological pricing really work in B2B?
Yes, but differently. In B2B, purchase decisions are more rational and often involve several stakeholders. Charm pricing (€9.99) has less impact. On the other hand, price anchoring and tiered pricing strategy (Starter / Pro / Enterprise) remain very effective at guiding the prospect towards the intermediate offer.
Should you always end your prices in 99 cents?
No. It all depends on your positioning. For a loss-leader product or a flash sale, the 0.99 boosts conversions. For a premium product or a high-end service, a round price (€100, €500) inspires more confidence and reinforces the perception of quality. Vary according to your objectives.
How do I test the impact of pricing on my sales?
Launch A/B tests on your most visited product pages. Create two versions: one with a price in 0.99, the other with a round price. Measure the conversion rate, the average basket and the number of transactions over 2 to 4 weeks. Tools like Google Optimize or Shopify (if you’re on that platform) make it easy to do.
Is psychological pricing legal in France?
Yes, as long as you comply with the legislation on price display and you don’t practise abnormally low prices (selling at a loss is prohibited except in special cases). Psychological pricing techniques fall under marketing, not illegal manipulation. Stay transparent about your promotions and respect the rules of the DGCCRF.
What’s the best price to maximise my margins?
There’s no single answer. The “best” price depends on your cost price, your positioning, your target and your strategy (volume vs margin). Test several scenarios, analyse your data and adjust continuously. Pricing optimisation is an iterative process, not a magic formula.
In summary
Psychological pricing is much more than a marketer’s trick. It’s a discipline in its own right that combines neuroscience, data and commercial strategy. Whether you sell socks at €9.99 or consulting services at €5,000, your price-setting directly influences the perception of value and the move to purchase.
Remember this: good pricing fools no one, it facilitates the decision. It reduces cognitive friction, clarifies the value proposition and guides the customer towards the offer best suited to their needs.
So, ready to review your pricing structure? At Donutz Digital, we support directors and CMOs in optimising their digital growth levers. From SEO to pricing strategy, we turn your data into actionable decisions. Shall we talk it over a coffee (or a donut)?





