on the federal dime(если речь идёт о США, Канаде, России -- государствах с федеральным устройством: "junketing first-class all over the country on the federal dime" (The Economist)
ART Vancouver)
on one's own dime(I had to ship the headphones on my own dime ($50 dollars w/tracking number and insurance). • You think they covered the shipping? Nope. I had to do it on my own dime.ART Vancouver)