If you had previous knowledge, you would know the answer to most of these. Have you taken lessons? If not, I HIGHLY suggest you call off horse ownership and take lessons for a few years. Coming from someone who bought a horse with little experience, the road is HARD. It's much easier and more enjoyable if you take lessons beforehand and get the knowledge you need. For the horse's sake, get lessons. ;)
What questions should I ask when buying a horse?
You should take a knowledgeable horse person with you. How old the horse is, their breed, personality, rider level, experience, etc. Have they had any past injuries, medical issues, etc.
How can I determine what my horse should eat?
It depends on the horse. If the horse is already getting feed, use the feed he's already eating.
What supplies do I need for my horse?
If he doesn't come with stuff, you'll need a halter, lead rope, bridle, saddle, saddle pad, grooming supplies, etc. And a HELMET. Depending on what your doing or his condition, you may need extra stuff.
What supplies do I need for my barn?
If he's in a stall: rake, shovel, wheelbarrow, bedding. Fencing tools. First-Aid Kit.
What should I know about horse ownership?
It is HARD. You'll spend lots of money and if you don't have previous experience, you'll be taking the long road. I hope you're getting lessons, it will help you a TON.
When should I schedule my horse's first farrier and vet visit? How often do the check ups need to be?
That all depends on the horse. You'll have to ask when his last farrier visit was and how often he's trimmed/shod. Some horses last 6-8 weeks, others may need looked at every 4 weeks. You should get a PPE before buying and then ask the owner when was the horse's last vet visit, when he'll need vaccines and wormed.
What types of vaccinations and dewormers should I use?
Depends on the season. Something to ask your vet.
I am on a fairly small budget, so any little money-saving tips would be great! And, if you have any other useful soon-to-be-horse owner tips, please share!
If you're on a small budget, horse ownership isn't right. :/ I pay $45 just to trim my horse's hooves, your area could be more expensive. It cost like $140 for vaccines + a coggins test on my horse, feed probably costs $10-$20 a bag (depending on the feed), if you buy hay that's probably $5 a bale. Tack could cost you well over $500 and you always need a backup fund in case your horse injures himself.