Sell Your Used Midi Dress — 0% Fees

A used midi dress typically sells for £12 to £50, and on WishThrift it costs you nothing to list — no fee, no commission, so you keep the whole amount you agree. Midi dresses are returned more than almost any garment because the length is wrong, so measure shoulder to hem and put that number where buyers cannot miss it.

The short version

Typical range: £12 – £50 — see the full midi dress value guide
What decides your price: condition, and how well you evidence it in photographs
Cost to sell here: nothing, at any price
Category: Clothing

Before you photograph it

Ten minutes here is worth more than anything else you will do. Buyers are deciding between your listing and someone else’s, and preparation is what visibly separates the two.

Measure the full length from the shoulder seam to the hem, plus bust, waist and hip laid flat.
Check the zip runs cleanly and look for underarm staining, which is the most common reason a dress is unsellable.
Read the composition and care label, and note whether it is lined.

The photographs that sell a midi dress

Four photographs do almost all the work. Shoot in daylight, near a window, with the item against something plain — and do not use the flash, which flattens texture and hides exactly what buyers are trying to see.

The dress on a hanger, full length, front
Flat with a tape showing the shoulder-to-hem length
The fabric close up, showing texture and pattern accurately
The zip, the lining, and any stain, snag or pull

Photograph the flaws too. It feels counterproductive, but a listing that shows the worst of an item gets fewer questions, fewer withdrawn offers and fewer arguments at handover. Buyers who can see the damage stop imagining something worse.

Writing the title and description

Style, fabric and size: “Floral Midi Wrap Dress, Size 12, Lined”. Length is what the word midi promises, so give the actual centimetres in the description — on different heights a midi becomes a maxi or a midi becomes a knee-length, and that is what drives returns.

Then state these in the description, because a buyer who has to ask is a buyer who might not bother:

Shoulder-to-hem length in centimetres
Bust, waist and hip measured flat
Whether it is lined, and the fabric composition
Zip or button fastening, and whether it has pockets

What buyers will actually ask

You will receive the same three messages about a midi dress. Answering them in the listing itself removes the back-and-forth, and answering them well when they do arrive is what turns an enquiry into a sale.

“How long is it exactly?”

Measure from the shoulder seam to the hem and give centimetres. Say the height you are if you have worn it — buyers find that genuinely useful.

“Is it lined?”

Check and say. An unlined dress in a thin fabric is a different product and buyers who have been caught before always ask.

“Are there any marks under the arms?”

Inspect carefully in daylight. Underarm staining is the single most common hidden flaw in used dresses and the one buyers most resent discovering.

Pricing it so it actually sells

Start from the honest condition grade rather than the price you hope for. WishThrift listings use five grades — New with Tags, Like New, Good, Fair and For Parts — and what each grade means is worth reading before you choose, because grading up is the most expensive mistake sellers make. It does not raise the price; it produces a buyer who arrives expecting something else.

The midi dress value guide prices all five grades for this item. Pick your grade, take the figure, and if you sit between two grades price toward the lower one. Items priced honestly sell faster than items priced hopefully, and on a free platform there is no fee eating the difference anyway.

What you keep, compared

On a £31 sale — roughly the middle of the range for a midi dress — here is what the commission-charging platforms would take, and what you would keep on each:

Where you sell it	Fee	You keep
WishThrift	£0	£31
Poshmark	−£6	£25
eBay	−£4	£27
Mercari	−£3	£28
Etsy	−£2	£29

Seller-side rates verified 26 Jul 2026 — Poshmark: 20% commission on sales of $15 and above; eBay: 13.6% final value fee, plus a per-order fee; Mercari: flat 10% selling fee; Etsy: 6.5% transaction fee, plus a listing fee and payment processing. Percentages are applied to the sterling figure above; the fixed per-order and processing charges those platforms add are quoted in their own currency and are not included here, so the real deductions are slightly larger. Full breakdown: marketplace selling fees compared.

Timing and getting it to the buyer

Strongest from March to August, with a second lift before the party season. Off-season listings sell noticeably slower.

Light and cheap to post. Fold with tissue in the creases if the fabric is prone to wrinkling and say you have done so.

WishThrift does not process payments or arrange delivery — you and the buyer agree both directly — so confirm payment has cleared before the item leaves your hands, and keep the conversation on the site so there is a record of what was agreed.

Ready to list it? It takes about two minutes, costs nothing, and there is no commission when it sells — create a free account or see how selling works.

Frequently asked questions

What is a used midi dress worth?

Typically £12 to £50, with designer and occasion pieces above that. See the midi dress value guide for the condition breakdown.

Which measurements matter most for a dress?

Shoulder-to-hem length first, then bust and waist laid flat. Length is what makes or breaks a midi, and it is the measurement most sellers leave out.

Should I model the dress in photos?

It genuinely helps buyers judge the fit and drape, and stating your own height makes the photograph far more useful. A clear flat-lay plus measurements works well too if you would rather not appear.