I was going to say the same thing, twenty - £400 is far from nothing, an extra £400 per month would make a huge difference to me. I too regularly sell clothes and unwanted items on eBay - I've been a hoarder for years - but eBay are now making it clear that they want to draw a distinction between private sellers and traders. If your selling gets to a certain level they will notice - and if you are a 99p seller, you can only have 100 free listings per month now. If they think it's trading rather than private, then I am sure that the JSA will take the same view. If however your eBay account is in your OH's name (I think you said that) then how would be JSA know that it was you that is selling? In any case, I keep a spreadsheet of what I sell on eBay - final price, postage price, eBay fees, so I can see exactly what "profit" I am making - if I were in your position then I would do the same, so you can prove to JSA how much you are actually making in selling your stuff, if it ever comes down to it.