For anyone starting new on Amazon they might want to start with a small aws budget on a their free trial to learn amazon. Even if you are a small to large company you will want to have a budget for your cloud services.
Amazon provides an easy way to alert and to create a budget for your cloud.
Lets get started on how to create a budget

Step by Step – How to create a AWS Budget in Amazon Web Services

First login to amazon console and then click on my account and you will see My Billing Dashboard in the drop down like below.

My Billing Dashboard Menu

Once inside the page, on the left hand you will see the menu for the section, click on budget.
aws-my-billing-budget-menu

aws-my-billing-budget-menu

Then click on the Create a Budget blue button.
aws-budgets

create aws budgets

I will create a cost budget so I have selected the cost budget and clicked on Set your budget
aws-cost-budget

aws-cost-budget

Then I have to set a name for the budget below I have set it as aws testing budget, it is set up as monthly and recurring.
aws-set-your-budget

aws-set-your-budget

I have set it as a fixed budget with a 10 dollar limit.
aws-fixed-budget-amount

aws-fixed-budget-amount

Afterwards you can click on Configure Alerts to configure when to alert you when the budget is close to a certain percentage or amount
aws-config-budget-alerts

aws-config-budget-alerts

I have set up the alert to 10% of the amount which is just 1 dollar, so aws will notify me on the email provided below when I am at 1 dollar
aws-budget-alert

aws-budget-alert

It will then confirm your budget on a page and you can see the details in a table
aws-budget-table

aws-budget-table

Summary

I hope this helps you in setting up your budget in aws when you are trying out aws or when you want to set up a budget for your company.