There is another problem-- many of the poorest people do not file income tax returns and those who do pay first and get the credits later -- many can't do that.
Many poor people who file tax returns pay to have these done and as more credits replace money taken away in sales tax increases there are more things some people will miss on their taxes or just hand over to the good folks at H & R Block etc.
I read a couple more reports about these measures-- in fact the government knows that there will be pain-- they provide just enough relief in temporary measures-- one time payment-- to get us past the next election. Once those payments are done people will be worse off but they will be bought for longer than the average political memory so we assume that's ok.
If you think the governemnt truly believes that this will be neutral for low income earners ask yourself why the government is providing the one time tax grants to low income people? and what is the point of a one time payment for a permanent adjustment.
All this is entirely seperate from all the points I made about services being labour which I should not ahve to repeat except to say they remain valid and are not at all part of the discussion anywhere here.