We’re seeing a big wave of reports about phone scams claiming you owe back taxes. But it’s not the IRS calling, it’s a scammer using a company name like “Tax Resolution Oversight Department.” If someone calls you out of the blue offering to help you fix a tax issue, hang up. Here’s how to spot the scam. It starts with an unexpected call from the “Tax Mediation and Resolution Agency,” or another official-sounding (but fake) government agency. They...