I read this story back in early/mid 80ies latest. It was most probably not a new story, nor necessary any kind of bestseller, since it was back in the USSR and we didn't have access to most foreign books -- just whatever anyone happened to get across the iron curtain or from restricted section of some central library of the area.
The story is very short, maybe some 3-4 pages. It was set in (near?) future, where a (99% that it was American) man is in his house, starting his day(?) and the house computer (disembodied voice, as far as I remember, but perhaps there was an actual computer to sit at also or perhaps even a robot, but unlikely), reminds him it is time to do his taxes.
So he sets about it, sort of half distractedly. The computer calls him different areas of spending (do not remember which ones, but things like "education", "welfare", "healthcare") and he tells the computer how much money to allocate to each.
I think, at some point one area of spending ("military" or "defense") gets him reminiscing on his son who was killed in a recent war(?) or maybe he is himself a war veteran(?), and when the computer asks him where to allocate the rest of his taxes, he tells it to spend it on "peace".
The computer tries to create a new government spending area/target, and asks him about details -- what peace, where, the man gets emotional and shouts to the computer something like "Peace! Peace on all Earth! Forever!".
The final paragraph then is something like "this was a wish of many more Americans as well. In 2 years(?) their wish came true".
I am not certain on any of particular details, hence the question marks. This is the general impression/memories I have left from reading this story >30 years ago.
I am fairly certain it was a part of an anthology of reasonably hard SciFi stories, but I don't remember the name of the author of this story, nor any other stories in it. Definitely a paperback.
It might have been one of the rare American or English published books allowed in country, but more likely it would have been a Soviet selection and publication of American scifi stories -- with stories selected and published without knowledge of (or payment to) authors, according to how much they aligned with the Soviet ideology.
The book might have been in English or Russian, but the stories were "Western" (ie. American and possibly English).
If it is the anthology I am kinda thinking it might be, it was a comparatively thick white book, ~A5 size (6x8") with some colourful circular drawing on it, which included a launching rocket(?) and title including something like "Selected stories by American & English(?) writers".
Even if it was a Soviet publication, it 99% used a story printed elsewhere earlier, so hopefully it would be possible to recognise the story even if the particular anthology is unknown.