You reach checkout and discover two attractive promotions: free shipping or 20% off. If the retailer allows only one promotion, which should you choose?
The answer depends on the numbers.
Start With Simple Maths
Suppose your order costs $50 and delivery costs $8.
A 20% discount saves $10, reducing the merchandise price to $40. After adding $8 shipping, your total becomes $48.
Free shipping leaves the merchandise at $50 but removes the $8 shipping fee.
In this example, 20% off is the better option because it saves $10 instead of $8.
Small Orders Can Be Different
Imagine your products cost $25 and shipping is $7.
A 20% discount saves only $5. Free shipping saves $7.
Here, free delivery wins.
This illustrates why you should compare the actual monetary value rather than assuming that 20% off will always be better.
Find the Break-Even Point
You can make the comparison quickly.
If shipping costs $10, a 20% discount becomes equally valuable at a $50 order value because 20% of $50 is $10.
Below $50, free $10 shipping is worth more. Above $50, 20% off becomes more valuable, assuming the discount applies to the full order.
Check Shipping Promotions
Delivery charges can significantly change the value of an online deal, especially on smaller purchases. Before checking out, it can therefore be useful to investigate whether a shipping promotion is available through a resource such as FreeShipping codes.
Once you know the shipping cost, you can compare it directly with the value of any percentage discount.
Look for Maximum Discount Caps
A “20% off” promotion may have restrictions.
For example, the retailer might offer 20% off up to a maximum saving of $20. On a $200 purchase, you might initially expect to save $40, but the actual discount would be only $20.
Always check the promotion terms.
Check Product Exclusions
Some percentage promotions exclude particular brands, categories, sale merchandise, or newly released products.
Free shipping might apply to the entire basket even when the percentage discount does not.
Test the promotions at checkout whenever possible and compare the displayed totals.
Do Not Increase Your Basket Unnecessarily
Free shipping frequently requires a minimum purchase.
If your basket is $40 and free delivery begins at $75, buying an unnecessary $35 item to avoid an $8 delivery fee makes little sense.
Buy additional products only when they are genuinely needed.
Consider Returns
Delivery costs can also matter if you may need to return something.
Check whether the retailer provides free returns or deducts return shipping from your refund. This is particularly relevant for clothing and footwear where sizing can vary.
Focus on the Final Total
Consumers are naturally attracted to large percentage figures and the word “free.” Neither tells you which offer is actually better.
The easiest solution is to calculate the final payable amount under each promotion.
Final Thoughts
Free shipping can outperform 20% off on smaller purchases or when delivery is expensive. A 20% discount will often become more attractive as the order value increases.
There is no universal winner. Ignore the marketing language for a moment, calculate both options, and choose whichever leaves you paying the lowest final total.



