When looking to buy a home you'll have many budget considerations. Your first concern will be how much debt you have. Unless you are planning (and are capable) of buying your home outright, you will need to borrow money to finance your purchase. The most common source of a loan is a bank (though there are some loaning communities that may serve your purposes). Before looking into buying a home you'll want to try to reduce your debt below $1000 and build your credit score.
Once you have a good credit score, your next task will be to save money to put towards your house. While you will be using a loan to pay for the majority of your house you will want to pay for 10%-40% of it upfront. The bank you borrow from may ask for you to pay a certain percentage and that can be your benchmark. If they do not, you'll want to aim for 20%, though remember that the more you pay upfront, the less you have to pay back.
Your third budget consideration is your monthly payments. After you've looked into the loaning programs the banks are offering and have chosen one that suits you, you'll want to make sure that you will have a reliable income during the life of your loan. Loans can have a 15 year payback period or a 30 year payback period. Depending on your credit and your down payment, you will have to repay your loan in installments every month. If you default on your payments, the bank will be able to repossess your house, so you'll want to make sure that you have a steady source of income so that you can make your monthly payments.
Your next budget consideration is the upkeep of the house itself. You'll want to have your house tested to see how much work you will have to do on the house to make it a home. Besides for basic upkeep, you'll also want to decorate and customize your home. All of those home improvements will take money. While you can do them over time, you'll want to make sure that you have enough money to cover the first, basic renovations.
Your last budget consideration will be your agent. If you use a broker to help you find the house, you will have to pay the broker a certain percentage of the list price of your house. You don't have to use a broker, but it can be a big help if you are unfamiliar with the local housing market. A good agent will seek out properties that fit your specifications, they will show you the properties, and they will help negotiate the contract for you.
Buying a home is a big decisions, and it requires careful financial planning. It is also one of the most rewarding things a person can do. Every cent that you spend on your home goes into a property that you can enjoy for the course of your lifetime and that you can pass on to your family. So think carefully about buying your home and make an investment that you will be proud of.