WASHINGTON—The U.S. Internal Revenue Service has suspended information exchanges with Russia’s tax authorities in a bid to hamper Moscow’s ability to collect taxes and fund its war against Ukraine, the Treasury Department told Reuters on Tuesday.
Under a 30-year-old tax treaty, the IRS and Russia’s Federal Tax Service have shared information to aid domestic tax collections and enforcement of tax laws in both countries. The IRS can request information about U.S. taxpayers from Russian authorities and vice-versa.





