eBay encourage/force you to lose money on postage

eBay's postage calculator is a very useful tool for sellers but does not allow you to add any surcharge to cover handling or the fee that PayPal (an eBay company) will take out of the postage amount if a buyer chooses PayPal.

Not only that but eBay enforce sometimes unreasonable postage and handling charge limits on certain categories, for example a single book has a postage and handling charge limit less than the cost of postage to many areas of Australia. On top of tht they take their fee when payment is by PayPal so your loss is increased.

So you may need to up your item price to cover the money lost on postage charges, but of course then eBay take a larger commission from the sale.