Resale & secondhand

Selling secondhand: the buyer-trust checklist

Nick Bailey· Founder, JustTaggitLast updated 22 June 20263 min read
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Most secondhand transactions in the UK come down to a simple question the buyer is asking themselves: can I trust this person and this item? Everything you do before and during the sale is an answer to that question. Here's the checklist that experienced sellers use.

Before you list

Gather the documentation

Item typeDocuments to find
Smartphone / tabletOriginal receipt, IMEI number, charger and original accessories, original box if available
Laptop / computerOriginal receipt, power adapter and accessories, original box if available
White goodsManual, purchase receipt, any service records or repair receipts
BoilerAll Gas Safe annual service certificates, installation details
BikeFrame serial number, purchase receipt, any service records
Any high-value itemPurchase receipt, any warranty documents

Prepare the item

  • Electronics: charge to 100%; perform a factory reset and confirm all accounts are removed (see how to verify a phone isn't stolen for the full account-removal process).
  • Appliances: run a cleaning cycle or wipe down the exterior; empty and clean the interior.
  • Garden equipment or tools: clean and test that everything starts and runs correctly.

Run an IMEI check (phones only)

Run a Checkmend IMEI check on your own device before listing. A clean certificate to show buyers removes the most common objection and signals that you're a serious seller.

Writing the listing

Be specific about condition. Phrases like "good condition" or "barely used" mean nothing to a buyer. "Small scuff on the bottom right corner of the screen, not visible in normal use" is specific, honest, and credible.

State everything that's included. If the original charger is missing, say so. If there's no original box, say so. Buyers are more put off by discovering omissions after expressing interest than by knowing about them upfront.

Include the serial number or IMEI. This confirms you're the owner (you can check it) and helps buyers who want to run their own verification.

Photographs: good natural light, multiple angles, the serial number label, and any marks or damage you've disclosed. Don't photograph in a dark room with flash — it looks like you're hiding something.

During the viewing

What to demonstrate

ItemWhat to show
PhonePower on, fully functional. Show no Activation Lock. Show IMEI matches.
LaptopBoot to desktop; test keyboard, trackpad, all ports, screen (no dead pixels).
Washing machineRun a short cycle if accessible.
BoilerShow it fires up; show the service certificates.
BikeLet them ride it. Show the frame serial number.

What to say

Answer these questions before the buyer asks them:

  • "Here's the IMEI check — it came back clean."
  • "Here's the receipt from [retailer] showing I bought it in [month/year]."
  • "All accounts are removed — you can see the setup screen when I reset it."
  • "Here are the service records going back to [year]."

Each of these reduces friction and moves the sale forward.

Payment and paperwork

For local in-person sales:

  • Bank transfer (Faster Payments) is clean and instant. Confirm you've received it before handing over the item.
  • Cash is fine for smaller amounts — check notes are genuine.
  • Avoid PayPal Friends and Family (no buyer protection, but also less chargeback risk for sellers).
  • Keep a simple written record: date, item, agreed price, buyer's name and contact. A screenshot of the conversation where you agreed the price works.

After the sale

Once the sale is complete, remove the item from any find-my-device services (if you've forgotten to already) and remove it from your home inventory records. If you're using JustTaggit, delete the item from that appliance's record so there's no confusion about ownership.

For the seller's view on how documentation builds value over time, see how to get more money when you sell your gadgets and appliances.


Build the record now. The buyer-trust checklist writes itself. Tag your first item free →

Frequently asked questions

Should I sell locally or ship?

For appliances and large items, local collection only. For electronics, either works — shipping widens the buyer pool but adds complexity (packaging, disputes over condition). For items over £200, local cash or bank transfer is worth the smaller audience.

How should I describe condition honestly?

Be specific rather than vague. 'Minor scratch on rear, not visible in use' is more credible than 'good condition'. Buyers expect wear — what they're worried about is hidden damage or missing information. Honesty about minor flaws builds more trust than overselling.

What's the safest way to receive payment?

Bank transfer (Faster Payments) for in-person sales — cash is fine but riskier for large amounts. For posted items, PayPal Goods and Services provides buyer protection (and therefore seller accountability). Avoid cryptocurrency, gift cards, and 'overpayment' scenarios — these are common fraud patterns.

What if something goes wrong after the sale?

Private sales in the UK are 'buyer beware' — you're not legally required to accept returns on private sales unless you described something inaccurately (which is misrepresentation). Be honest in your listing, demonstrate the item's condition, and keep a record of the transaction.

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