That's right. Before you come to buy a toy make sure you set aside 5% for sales tax.
Your toy isn't going to be 3.99 because of tax, tax is put on goods like your toy and goes to the government funds. The government use this money do pay for fereral expenses, such as military, healthcare, education, and much more.
Tax helps the government afford to build highways, collages, and much more. These help us get around and learn. Without tax government wouldn't have revenue for these things. with a budget you can spend the right amount of money, you just need to save room for tax.
A national budget gets its revenue from taxes, a personal budget has income through what you earn from a job. Personal budgets need to stay under or balanced, if you spend more than you have your budget is in deficit. A national budget expenses support the comman good, but a personal budgets expenses effect the ones making it.