📚 Buying & Selling Second-Hand: The Complete Guide

Everything you need to find real bargains on the second-hand market — whether you are buying for yourself or building a business around it. Includes dedicated chapters on shipping & customs and on art & antiques.

Contents

📚 All guides & articles

In-depth, original guides to buying and selling second-hand smartly — by category and by skill.

😱
How to Avoid Scams When Buying Second-Hand
Spot fake sellers and risky payments before you lose money.
🎯
How to Spot Underpriced Listings and Real Bargains
Find underpriced listings the rest of the market missed.
📦
Shipping Second-Hand Items Internationally
Customs, VAT and real landed costs across borders.
📱
Buying Used Electronics Safely
Phones, laptops and tablets: what to test before you pay.
🛋
Buying Second-Hand Furniture
Judge quality, spot good brands and avoid costly mistakes.
👗
Thrifting Vintage & Designer Fashion
Find real designer pieces and date true vintage.
🚗
Buying a Used Car From a Private Seller
The full inspection and paperwork checklist.
Buying Pre-Owned Watches
Avoid fakes and franken-watches; check what matters.
📷
Buying Vintage Film Cameras
What to check on old cameras and lenses before paying.
🎮
Collecting Retro Games & Consoles
Spot reproductions, judge condition and value boxed sets.
💰
Sell Your Stuff Faster and for More
Photos, titles, timing and pricing that actually convert.
🤝
Pricing & Negotiation
Set the right price and negotiate without losing the deal.
🔍
How to Inspect a Used Item
A universal pre-purchase checklist for any second-hand buy.
🎨
Buying Art & Antiques Second-Hand
Spot real value, read marks and avoid expensive fakes.
Why Buy Second-Hand?
The money, quality and sustainability case for used.
🌐
Best Second-Hand Sites Worldwide
The top marketplaces for used goods, by country and category.
🇩🇪
Buying Second-Hand in Germany
Kleinanzeigen, Vinted and the best German marketplaces.
🇬🇧
Buying Second-Hand in the UK
Gumtree, eBay, Vinted and the best UK marketplaces.
🇺🇸
Buying Second-Hand in the USA
Craigslist, Facebook, OfferUp, eBay and more.
👚
Vinted vs Depop vs eBay
Which marketplace is best for buying and selling?
📱
Is a Used iPhone Worth It?
When buying a used iPhone saves money — and when it doesn't.
🚗
How to Check a Used Car's History
VIN checks, finance, mileage and write-offs before you buy.
🛍
Best Things to Buy Second-Hand
Where used wins big — and what to always buy new.
📱
Facebook Marketplace Safety Guide
Buy and sell on Facebook Marketplace without getting scammed.
💰
Flipping Second-Hand for Profit
Turn cheap finds into income — a beginner's flipping guide.
🔄
Refurbished vs Used: Which to Buy?
The real difference, warranties, and when refurbished wins.
💻
Buying a Used Laptop
What to check on a second-hand laptop before you pay.
🇫🇷
Buying Second-Hand in France
Leboncoin, Vinted and the best French marketplaces.
🇦🇺
Buying Second-Hand in Australia
Gumtree, Facebook, eBay and the best Aussie sites.
🇨🇦
Buying Second-Hand in Canada
Kijiji, Facebook, eBay and where Canadians buy used.
👚
How to Sell on Vinted
List, price and ship to sell your clothes fast on Vinted.
📦
How to Sell on eBay
A beginner's guide to listing and selling on eBay.
🚲
Buying a Used Bike
How to check a second-hand bike and avoid stolen ones.
🔒
Is Vinted Safe? Avoiding Scams
How Vinted protection works and the scams to watch for.
👜
Buying Authentic Used Designer Bags
How to spot fakes and buy pre-owned luxury safely.

🤖 The AI assistant — your personal buying helper

The AI assistant (the 🤖 bubble in the lower-right corner) is a dedicated tool, separate from the search box. It understands natural language, analyses listings, and can act on external platforms for you.

How to start: Click the purple 🤖 bubble in the lower-right of the home page — or open the AI page. Type what you are looking for, add your name, email and phone, and go.

What the assistant can do

💬

Understands full sentences

Write naturally: "Volvo V70 under 10,000 EUR" or "find the cheapest BMW 850 in Europe and contact the sellers". No special commands needed.

🔍

Searches globally — 70+ sites

Searches Tradera, eBay, Blocket, Gumtree, Finn, DBA, OLX, Marktplaats, Kleinanzeigen and the platforms in the country lists — all at once.

📋

Analyses listing details

Opens each listing and checks fraud signals, condition, price history, how long it has been live, and the seller's trustworthiness.

😱

Scam scanning

The AI actively looks for red flags — too-good prices, vague photos, unusual payment methods — and flags risky listings.

🏷

Places bids for you

Connected your Tradera or eBay account? The AI can open the platform and place a bid directly — you always approve first.

💌

Sends contact messages

The AI drafts a personal message to the seller with your contact details — by email, SMS or the platform's own messaging.

Step by step

  1. You describe what you want: e.g. "Volvo V70 under 10,000 EUR" + your name, email, phone.
  2. The AI searches globally: Tradera, eBay, Blocket, Gumtree and 70+ platforms are scanned at once.
  3. Detail analysis: the AI opens each listing — reviewing photos, text, price and fraud signals.
  4. Ranks candidates: the best matches are shown with an AI score and a short analysis.
  5. You decide: approve, edit or reject each message before it is sent.
  6. The AI acts (if an account is linked): opens e.g. Tradera and places a bid or sends a contact message.
  7. The seller replies: the answer lands in your email — you take it from there.
Link your accounts: open Connections and link Tradera, eBay and Blocket. Without a link the AI can still search and draft emails — but cannot act directly on the platforms.

Ready to let the AI search for you?

Type what you are looking for — the assistant handles the rest

🤖 Open the AI assistant → 🔗 Link my accounts

🎯 How to find a real bargain

The best bargains are not found by accident — they are found by people who know where and when to look.

Timing — when do the right items appear?

📅

Mondays & Tuesdays

Most new listings go up Mon–Tue. Sellers who cleared out over the weekend post on Monday morning — be quick.

🏠

Estate & house moves

Search for "estate", "moving", "clearing out". Strong motivation to sell — real bargains hide among the cheaply listed items.

🎄

January & post-holiday

People declutter after New Year and the summer. Electronics deals in January, furniture in late summer.

Be patient — wait

Set a saved search. Prices often drop after 1–2 weeks. Listings with no interest are prime price-drop candidates.

Search strategy

Misspelling search: try "vintge", "antiqe", "samsng" — typos have almost zero competition on a given platform.
  1. Broad first: start general ("armchair") — then filter down
  2. Related terms: "chair" + "armchair" + "easy chair" — same thing, different prices
  3. No price set: listings without a price often have untouched keywords — message an offer directly
  4. Older listings: sort by oldest — the seller has failed to sell and is motivated
  5. Read the context: phrases like "inherited" and "clearing out" are strong signals

Negotiate well

🤝

Never ask "what's your lowest?"

Open with a concrete offer instead: "20 EUR, I can collect today". It sets an anchor and shows you mean business.

📷

Point out flaws politely

"There's a scratch on the back — could we do 35?" A specific defect + a specific price = strong leverage.

🚗

Offer convenience

"I'll collect tomorrow with cash" is often worth more to the seller than another 5 EUR.

📖 Read the full guide: How to spot underpriced listings and real bargains →

😱 Avoiding scams

Most second-hand fraud follows the same handful of patterns. Learn them and you avoid almost all of it.

💰

The price is too good

A near-new iPhone or designer item far below market is the classic bait. If it looks too good, it almost always is.

📷

Vague or stolen photos

One blurry image, or a photo that reverse-image-searches to another listing, is a red flag. Ask for an extra photo with today's date written on paper.

📫

"Pay first, I'll ship"

Be wary of advance payment to a stranger, especially via gift cards, crypto or money transfer. Prefer escrow, cash on collection, or buyer-protected checkout.

Pressure & off-platform

"Several buyers waiting", "let's move to WhatsApp", "click this payment link" — urgency and moving off the platform are manipulation tactics.

📍

Meet safely

For local deals, meet in a public, busy place in daylight; bring someone; inspect before paying. Police stations in many countries offer safe-exchange zones.

📝

Keep a paper trail

Keep the listing, messages and receipt. It protects you with the platform and your card issuer if something goes wrong.

Tip: our AI assistant scans each listing for these exact red flags and warns you before you commit — but your own judgement is always the final filter.

📖 Read the full guide: How to avoid scams when buying second-hand →

💼 Buying & selling as a business

A systematic approach turns occasional finds into a steady side income — or more.

The arbitrage model: buy low, sell on the right platform

The core idea: the price gap between platforms is your value. Local classifieds → eBay (global collectors). For niche items, a 3–10x price difference is not unusual.
CategoryBuy cheap onSell high onTypical margin
🎮 Retro gamingFlea markets, local classifiedseBay, Tradera200–600%
👟 Vintage designer clothingCharity shops, estatesVinted, Depop150–400%
📷 Film camerasLocal classifieds, flea marketseBay, Facebook200–500%
🎨 Art (unknown artist)Flea markets, eBayArtprice, Barnebys, Catawiki100–2000%
🔨 Vintage toolsEstates, FacebookeBay100–300%
📺 Vintage hi-fiEstate clearanceseBay, hi-fi forums100–250%
🛋 Design furnitureLocal classifieds, Tradera1stDibs, Selency150–500%
  1. Specialise: pick 1–2 categories and build real knowledge. Breadth = mistakes. Depth = profit.
  2. Check sold prices: Barnebys realised prices, eBay "Sold items" — never guess.
  3. Photograph well: natural light, neutral background. A good photo can double the final price.
  4. Disclose defects openly: it builds trust, reduces returns and earns better reviews.
  5. Mind the tax rules: casual private sales are often tax-free up to a limit; systematic trading counts as a business. Check your country's rules.

See what items actually sell for right now

Our price guide shows median prices per platform from collected data

📊 Open the price guide → 🔍 Search now

📦 Shipping & customs across borders

Buying from another country can unlock big savings — but shipping and import charges decide whether a deal is really a deal. Always work out the landed cost (item + shipping + VAT/duty) before you buy.

What affects the final cost

Weight & size

Couriers bill the greater of actual and volumetric weight. A light but bulky item can cost far more to ship than you expect.

🏪

VAT / GST on import

Most countries charge import VAT/GST on goods from abroad (the EU has charged it from the first euro since 2021). Budget for it.

💵

Customs duty & de-minimis

Duty usually applies above a threshold (e.g. EUR 150 into the EU, USD 800 into the US). Below it, many shipments are duty-free.

📦

Handling fees

Carriers often add a customs-clearance/handling fee on top of the tax itself. Factor it in for low-value parcels.

Estimate shipping + customs before you buy

Our calculator gives carrier quotes plus an import VAT/duty estimate and the total landed cost — for Europe and many non-EU countries.

📦 Open the shipping & customs calculator → 📊 Compare prices by country

📖 Read the full guide: Shipping second-hand items internationally →

📦 Category guides — what to look for

📱

Electronics & tech

  • An iPhone 2–3 generations old = best price/performance
  • Vintage hi-fi (Sansui, Marantz, NAD) — in high demand
  • Film cameras: Canon AE-1, Pentax K1000
  • Check IMEI, boot test and battery % before buying
👕

Clothing & fashion

  • Vintage Levi's 501 (pre-2000) = high value
  • Military jackets, workwear — trending globally
  • Check the label: "Made in USA / W. Germany"
  • Vinted often has the lowest seller fees
🛋

Furniture & design

  • Learn Stressless, Arne Jacobsen, Bruno Mathsson
  • Check markings underneath/behind — original = premium
  • Sofa sets are hard to resell — push the price down
  • Vintage 70s/80s IKEA: a niche market
🚗

Vehicles & parts

  • Classic-car parts: search the exact model number
  • Convertibles are cheap in late winter
  • Verify the registration/VIN before paying
  • OLX, Marktplaats, Gumtree, Bytbil cover most markets
📚

Books & media

  • First editions in good condition = collector value
  • Vinyl: check the grading (VG+, NM) and pressing
  • Sell via Discogs / used-book marketplaces
🎮

Gaming & hobby

  • Complete-in-box = 3–5x the price of a loose game
  • Complete SNES / Sega Mega Drive = top value
  • LEGO — check against Bricklink.com

🎨 Art & antiques — the in-depth guide

Art and antiques are one of the best-hidden opportunities on the second-hand market — but they reward knowledge.

What is worth looking for?

🖼

Signed oil paintings

Search the artist's name on Artprice.com and Barnebys realised prices. Check the back for an exhibition label.

🥤

Silver — hallmarks decide everything

Hallmarks (maker's mark, purity, date letter) authenticate silver. Genuine marks = measurable value in both melt and collector terms.

🍾

Porcelain & ceramics

Rörstrand, Gustavsberg, Arabia — check the mark on the base. Signed pieces (Stig Lindberg, Lisa Larson) are worth a lot.

Watches

Vintage Omega, Rolex, IWC = rising value. Verify the serial number. An original bracelet multiplies the price.

📄

Prints & graphics

Signed, numbered prints (e.g. "14/50") = limited-edition value. Check the artist's history on Barnebys / auction archives.

🪑

Furniture — period & style

Learn the hallmarks of each era. Original surfaces and fittings multiply the value.

Identify and authenticate

  1. Photograph the marks: silver, porcelain and furniture marks carry the identity. A macro photo settles originality.
  2. Google Lens: point your camera at the item — it surfaces similar sold objects instantly.
  3. Artprice.com: the world's leading database of sold art prices — free for simple lookups.
  4. Barnebys realised prices: a top source for what auction lots actually sold for.
  5. Expert valuation: major auction houses offer a free preliminary in-house assessment.
  6. Provenance: a receipt, exhibition catalogue or old photo of the item can double its value.
The golden rule: never buy expensive art/antiques without checking sold prices — not asking prices. The hammer price (excluding commission) is the real market price.

🏛 Auction houses — your marketplace for art & antiques

These auction houses are searchable straight from our search box via the "Art & Antiques" preset.

Barnebys

Aggregator

Aggregates lots from 100+ auction houses, with a history of realised prices — the industry's best price source. Covers everything from small lots to seven-figure objects.

🔍 Search Barnebys →

Bukowskis

Premium

A leading Nordic auction house for fine art, design, jewellery and antiques since 1870. Free in-house consignment valuation.

🔍 Search Bukowskis →

Catawiki

Europe

Large pan-European curated auction platform for art, collectibles, design and antiques. Every lot is checked by an in-house expert.

🔍 Search Catawiki →

Lauritz

Scandinavian

A large Scandinavian auction house — antiques, design, jewellery, porcelain. Online auctions; high volume means bargains hide among thousands of lots.

🔍 Search Lauritz →

eBay — collectors

Global

The world's largest marketplace for collectors. The "Sold items" filter reveals actual market prices. Niche collectors often pay 5–10x the local price.

🔍 Search globally →

📊 What sells for what?

Benchmarks from auction data (approx. EUR) — prices vary widely with condition, signature and provenance.

ItemTypical rangeSource
🥤 Silver bowl, 18th–20th c., 200–400g€80 – €400Barnebys, Bukowskis
🍾 Lisa Larson figurine (Gustavsberg)€30 – €250Tradera, Barnebys
🖼 Oil, known Nordic artist (signed)€500 – €10,000+Bukowskis, auction houses
🖼 Oil, unknown artist, canvas/panel€20 – €150Tradera, Lauritz
⌛ Omega Seamaster vintage (60s–80s)€300 – €1,800Barnebys, Chrono24
📷 Canon AE-1 Program w/ 50mm€80 – €250eBay, MPB
🪑 Arne Jacobsen "Series 7" original€200 – €800Barnebys, 1stDibs
🍶 Orrefors/Kosta engraved glass (signed)€30 – €300Tradera, Barnebys

Check live price data from our database

Median prices per platform, price trends and live listings — updated continuously

📈 Open the live price guide → 🔍 Search art & antiques
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