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How sales tax works in consumer pricing
Sales tax is a transaction-based consumption tax applied to taxable purchases at the point of sale. In most tax-exclusive pricing systems, the displayed shelf price does not include the tax. Instead, the tax is added at checkout based on the combined local rate composed of state, county, city, and special district percentages.
For consumers, this means the mentally visible price is not always the amount actually paid. For businesses, understanding sales tax is essential for pricing strategy, quote preparation, invoice generation, and compliance with remittance obligations. Sales tax also differs from income tax because it is collected on a transaction rather than on earnings.