What grinds my gears: You're finally gonna get your first good paycheck in quite some time...and at the same time...the f*****g bill for the car tax is sent, 375$ gone immediately. GRRRRRR it's way too high IMO 
Same thing happens to me all the time here but it's the city tax.
As soon as I start to get a bit ahead with my savings the friggin' city tax shows up and wipes it out.
And then usually at the same time the people from NHK (the national TV station) show up asking me for money when I don't even freakin' watch NHK
and I also pay for cable TV which
includes NHK and they wonder why I tell them to get lost.
Seeing as I get my NHK channel through my cable package it would be simpler to just block it when I don't pay the door-to-door beggers but it's the law here that everyone must have access to NHK because it's supposed to be indestructible in the event of a major catastrophe. Of course the real reason is that if it were an option to not pay then 50% of people would just do without it and the government would lose money. So why not just tack it on to another tax then instead of sending poor slobs door-to-door to mostly hostile receptions from the people they disturb. They even show up sometimes at like 7-8PM when people are eating dinner/relaxing after work. Because if these people didn't have this stupid job the unrealistically low unemployment rate would go up. The Japanese government hires ridiculous numbers of people for jobs that could be handled by a fraction these days just to keep unemployment down and this is paid for out of, guess what, our freakin' taxes!
In Australia I went to get my driver's licence renewed. It took 15 minutes from in the door until finished, including the eye-test and photograph. There were only like 7-8 staff in the whole office. Everything is handled by computer so you don't even need to fill out a form on paper. A greeter meets you at the door with a tablet where they input your needs and give you your number. There were about 6 numbers ahead of mine so I figured like a 30 minute to an hour wait but the numbers ticked down like one per minute and then I was called to the desk where all my data was already on the worker's screen.
Same experience at another government office but it was only 10 minutes there start to finish.
In Japan there are like 20-30 people working in any government office branch. You have to fill out the same bloody form every time you go in, then line up to hand in the form, then get your number and then wait for usually 1-2 hours until called while they go over the same information on the form that should already be in their system. No face-to-face worker has a computer at their station. They are still working directly off the paper forms you hand in and any other info on you they physically get from their massive banks of filing cabinets. You can always see staff in the back constantly filing and retrieving papers. Then there is a row of people on computers entering the data anyway. Then you are told to wait for like 6 weeks until your request is processed, after which time you must physically go back in to the office, get another number, and wait yet again until finally the whole thing is done.
Another amazing thing about this process is that I'm sure I fill in certain sections on the form differently every time I do them because the field description is so vague like "Length Of Stay". To this day I have no idea if that means the total time I have been in Japan, the time since I last filled out the form, or how much time I have wasted in their offices. This and many other sections like "Gross Worth Of Company" etc. I just fill in with random numbers and have never been asked about which shows they don't even look at and/or don't even care about these sections. Are they just in there so that the form fills an A4 size paper?!
Of course the only place where this isn't true and your business is handled quickly, painlessly, and digitally is, guess where? Yup: The friggin' tax office when you come in to pay. Funny isn't it that when it's them getting money from me everything moves along smoothly!
Now that I'm starting to sound like this guy:
I'll just finish with:
BLAH!