I worked for Block here in Canada for 1 season. My mom worked there for 15 years. Most of the jobs (tax preparers) are seasonal, lasting from early Jan until April 30. They keep some of the managers on year-round as some offices prepare returns all year and they also need to prepare for the up-coming year, upgrade and test new compter programs, write/update course material, and just run the business in general.
The seasonal people come from a variety of backgrounds; a lot do seem to have accounting or office jobs as their main career. It’s not neccesary though - these are just the types of people who are usually interested in some seasonal paperworking jobs for a few months per year.
Also remember that accoutants and tax preparers ARE NOT the same thing. Good accountants know their tax rules, but it seems waaaaay too many mediocre accountants do not. Most of my mom’s personal tax clients have had their returns screwed up by their accountants and came to her to fix the problems. They almost always stay with her for their taxes too as she only charges about $10 per return. She is also NOT an accountant - taxes only!
Anyways, I have a background in biology, and did just fine as a tax preparer. You take a course for ~$100 starting in around September (2-3 sessions per week, about 2 hours per session) that lasts until mid-December. You learn all about the basic returns, and end up with a thin phone-book sized manual of all the rules to keep. You learn how to do the returns by hand (calculator & pencil), and towards the end on the computer software which does the math for you.
You take a test done by hand (no computers), and need 70-80% (I forget which) to pass. You are then free to leave like any other course now knowing how to do taxes, but they offer you an opportunity to work for them.
You then do a couple weeks of job training including more computer training and people skills. You tell them the hours you can work and where you live, and they will assign you a desk at one of their offices for those hours. Beginners usually start part-time, and always have a senior preparer watching over them. On about 16-20 hours per week I prepared about 70 returns for various clients over 4 months. Your work is sent through the checkers (experienced workers) to catch any mistakes you made, although there may still be the odd boo-boo now and then - I think I had 1 or 2 little things that a phone call to the client cleared up. It depends on the office and location you are in, but I did returns for drunken street people making $1,500 per year all the way to snaughty professional business types with well over $100,000 per year, ages 16 to 80’s.
You start by taking the basic course. If you want to take more advanced courses which cover US taxes, corporate, farm, final returns (death), and so on from Block you must work for them. These courses also come cheaper… under $40 IIRC. So in exchange for part-time to full-time season work, you can continue taking discounted courses every September… I think there are at least a dozen or more. Or you can teach a course rather than taking a new one, again, after working for them for several years.
I didn’t continue the job because it didn’t interest me (just a new thing to try), and I left after 2001. Some changes may have happened since then. Some people do make it a career, and the ambitiose ones either end up as office managers or higher, or go to work for CCRA (Revenue Canada… the government). Many preparers have personal clients on the side, but you have to watch out as there are some terms on the work contract restricting this. Hope that helps!