As Publishers Clearing House gears up for its next million-dollar drawing in late May, scammers are dialing up efforts to trick people into believing they’ve won big.

Don’t fall for this scam, says the Better Business Bureau of the Pacific Southwest, and Central and Inland California.

Publishers Clearing House, best known for its sweepstakes and surprise jackpot visits, has become the No. 1 most impersonated organization by scammers, according to reports submitted to BBB Scam Tracker.

These fraudsters convince victims they’ve won the grand prize — but before claiming it, they’re told to pay upfront “fees and taxes.” The result? Thousands of dollars lost, and no prize in sight.

“You don’t need to pay to enter or win the Publishers Clearing House sweepstakes. That’s a huge red flag,” says Joe Ducey, BBB spokesperson. “Publishers Clearing House never calls winners in advance. They show up in person — that’s part of the fun and surprise.”

Don’t Become a Victim

BBB reports show 90% of these scams happen over the phone, with seniors being the most frequent targets. However, everyone should remain cautious. BBB offers these tips:

— Don’t answer calls from unknown numbers. Instead, save important contacts in your phone and let unknown calls go to voicemail. Scammers rarely leave messages.

— Never send money or share personal information in exchange for a prize.

— Report scam attempts to BBB Scam Tracker to help warn others.

— Stay informed. Stay safe. And remember — if you didn’t enter, you didn’t win.

Watch: Don’t Fall for This Scam