Free scam checker

Is this buyer a scam?

Selling on Craigslist, Facebook Marketplace or OfferUp and a buyer's message feels off? Paste it below. The checker looks for the patterns behind the common buyer scams: verification codes, overpayments, fake checks, shippers, gift cards and more.

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What this does

Known patterns, spelled out

Almost every buyer scam on the classifieds runs on the same dozen scripts. This page holds those scripts as a list of patterns and checks your message against them, on your own device. When something matches, it tells you which scam it is, how it ends if you play along, and what to do instead. Tolerant of typos and odd spacing, because scammers are too.

It never says a message is fine. Scammers change their words every week, so treat "no known patterns" as exactly that, and keep the checklist further down in mind for every sale.

The scams it checks for

Twelve buyer scams, how to spot each, and what to do

Is a buyer who asks me to read back a verification code a scam?

How to spot it: Right after "is this still available?" they say they need to make sure you are real, and a six-digit code shows up on your phone. Often it mentions Google Voice. They ask you to read it back or text it to them.

What to do: Never read a code to anyone. That code confirms your number to Google or another service, and once they have it they open a phone number in your name to scam other people with. Stop replying. Nothing about a real sale requires you to be verified.

A buyer offered more than my asking price. Is that a scam?

How to spot it: They will pay above the asking price, or a check arrives for more than agreed "by mistake", and they ask you to refund the difference, often to a mover or shipper.

What to do: Never refund an overpayment. The original payment is fake or will bounce days later, and the difference you sent came from your own money. Ask for the exact amount, and confirm it in your own bank app before anything moves.

The buyer says they already paid and sent a screenshot. Is that real?

How to spot it: "Payment has been made", a screenshot of a transfer, or an email that looks like it came from PayPal or Zelle. Often the money is "pending until you ship" or "released once you send a tracking number".

What to do: Only trust your own bank or payment app, opened by you, showing the money as available. Screenshots and emails are easy to fake. Never ship or hand over an item on the strength of a picture.

Is it a scam when a buyer insists on one payment app or "friends and family"?

How to spot it: They only use one app and refuse every other way, they ask you to send or accept the payment as "friends and family", or they send you a link to "receive" your money.

What to do: You choose how you get paid. "Friends and family" removes every protection, and a payment link from a stranger can be a phishing page for your bank login. Never click it. Open your app yourself and check the balance.

Is a cashier's check, certified check or money order from a buyer a scam?

How to spot it: The buyer wants to mail a cashier's check, certified check or money order, usually paired with a story about why they cannot come, and a mover who will collect the item once "the check clears".

What to do: Refuse checks and money orders from strangers. Counterfeits look real and your bank can show the money as available for days before it bounces. When it does, the bank takes the money back from you.

The buyer's shipper or mover will pick it up and I pay them. Scam?

How to spot it: A shipping agent, mover or courier will come for the item. The shipping fee is "included in the payment" and you are to pay the mover, or you will be reimbursed.

What to do: Never pay a third party for a buyer, and never forward part of a payment anywhere. The mover is the scammer and the payment you received is not real. A genuine buyer books and pays their own shipping.

The buyer is out of town, deployed or on an oil rig. Is that a red flag?

How to spot it: They cannot meet, call or see the item because they are deployed, offshore, traveling, buying it as a surprise for a relative, or hearing impaired. Payment therefore has to be remote.

What to do: Treat the story as the setup it is. On its own it proves nothing, but it almost always comes just before the fake check, the shipper or the overpayment. Sell to people who can meet you, or who pay through a channel where the money is confirmed before you hand anything over.

A buyer wants to pay full price without seeing the item. Is that a scam?

How to spot it: "I'll take it", "consider it sold", "no need to see it", full asking price, no questions and no haggling, from someone who has never asked a single thing about the item.

What to do: Slow down. Real buyers ask questions, want to look, and try to knock something off the price. Ask them to come and see it. If every reply steers back to paying remotely, walk away.

Is it a scam when a buyer asks for my bank details or email to send the money?

How to spot it: To "send the payment" they need your routing and account numbers, your bank login, your full name and address, your date of birth, or your PayPal email.

What to do: Nobody needs your bank login, your full account number or your ID to pay you. That information is what they are after. Share nothing beyond what your own payment app shows a payer.

Is a buyer offering to pay in gift cards or crypto a scam?

How to spot it: They want to pay with gift card codes, prepaid cards, Bitcoin, USDT or another coin, sometimes for a bit more than you asked.

What to do: Refuse. Gift card codes and crypto move instantly, cannot be reversed and cannot be traced to a person. Take cash in person, or a payment your own bank or app confirms.

The buyer says "need it today", "final offer", "my last message". Scam?

How to spot it: Deadlines and ultimatums: they need it today, this is their final offer, this is their last message, decide now or the deal is off.

What to do: Refuse to be rushed. Pressure exists so you skip the moment where you would have checked the money. Anyone who really wants the item can wait for the payment to be confirmed.

Is a buyer who wants to move to email or WhatsApp right away a scam?

How to spot it: Their first message hands you an email address or a WhatsApp number and asks you to continue there, often with "I don't check this app much".

What to do: Keep the conversation where the listing is until you meet. Off the platform there is no record, no report button and no block, and it lets one person run a script on hundreds of sellers from a throwaway address.

Every sale

How to get paid safely in a private sale

Six habits that close off every scam on this page. Still deciding how to take the money at all? See the safest way to get paid in a private sale, with cash, Zelle, Venmo, Cash App, PayPal and Nilfpay side by side.

  1. Meet in person, in a public place

    A busy store parking lot, a coffee shop, or the safe-exchange spot many police departments now offer. Daylight, and bring someone if you can.

  2. Take cash, or confirm the payment inside your own app

    Open your bank or payment app yourself and see the money as available. Not pending, not a screenshot, not an email, not the buyer's phone held up to your face.

  3. Never refund an overpayment

    Too much money is not a gift, it is the scam. Ask for the exact amount or cancel the sale.

  4. Never read a code to anyone

    No real buyer needs to "verify" you. A code texted to your phone is for you alone.

  5. Never pay a mover, shipper or anyone else on a buyer's behalf

    And never forward part of a payment anywhere. The buyer books and pays their own shipping.

  6. Keep the conversation where the listing is

    Until you have met and been paid. Email and WhatsApp offers on the first message are the opening line of most scripts.

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About Nilfpay

None of these scams can happen when you get paid through Nilfpay: the buyer pays by card, the money is confirmed before you hand anything over, and there is nothing for you to refund, forward or read back.

See how Nilfpay works

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