New sellers almost always underprice, usually out of fear that a higher number will scare buyers away. In practice, underpricing is far more dangerous to a small store than pricing a little high, because it quietly erases margin you'll never get back once a listing has sales history at that price.

Start with your actual base cost — not just the product cost the platform shows you, but that number plus shipping (if you're absorbing any of it), plus the platform's transaction fee, plus payment processing (typically around 3%), plus, if you're on Etsy, the listing fee amortized across expected sales. It's easy to look only at "base product cost: $12" and forget the other 15-20% that quietly disappears before it hits your account.

From there, work out your target margin — not as an afterthought, but as a real number you decide on up front. A common range for small POD sellers is 35-50% margin after all fees, though this varies a lot by niche; premium or highly differentiated designs can support more, generic designs in a crowded category often can't.

Here's a rough worked example: base cost $12, shipping absorbed at $4, Etsy transaction and payment fees around 9% of your sale price, and a target 40% margin. If you price at $28, subtract $16 in cost, subtract roughly $2.50 in fees, and you're left with around $9.50 profit — about 34% margin, a bit below target, which tells you $28 might need to move closer to $30-32 to actually hit 40%.

The part people miss: competitor pricing is a data point, not a rule. If everyone in your niche prices at $22 and your true cost structure needs $28 to hit a sustainable margin, that's useful information about whether that specific niche or product type is viable for you at all — not a signal to underprice yourself into an unsustainable business just to match the crowd.

Last thing worth building in from day one: a small pricing cushion for print quality issues, occasional refunds, or a customer needing a reprint. If your margin is razor-thin, a single reprint on a low-margin order can wipe out the profit from several other sales — pricing with a little room absorbs that instead of turning every hiccup into a loss.