Shopping Cost Calculator
Calculate your total shopping basket cost across multiple items with local sales tax, shipping fees, and coupon deductions.
Shopping Cart Items
Total Shopping Cost Formula
Total Shopping Cost = (Items Subtotal - Discounts) + Sales Tax on Taxable Goods + Shipping & Handling- Items Subtotal: Sum of (Unit Price × Quantity) for each merchandise item.
- Discount Allocation: Discounts reduce the taxable merchandise subtotal prior to sales tax assessment.
- Sales Tax: State and local sales tax applied to taxable items after discounts.
- Postage & Delivery: Shipping, courier handling, or freight charges added to the final payable balance.
Step-by-Step Worked Example
Calculation Steps:
How to Use This Calculator
Assumptions & Limitations
- Promotional discounts reduce item subtotals proportionally across items.
- Excludes non-refundable third-party carrier surcharges unless entered in shipping.
Frequently Asked Questions
Are clothing items taxable in every US state?
No. Several states exempt general apparel entirely (e.g., Pennsylvania, New Jersey, Minnesota) or exempt clothing below specified dollar thresholds (e.g., New York, Massachusetts), whereas most states tax apparel at standard sales tax rates.
Should discounts be subtracted before or after sales tax is calculated?
In the vast majority of US jurisdictions, store discounts and retailer coupons reduce the taxable price before sales tax is assessed. However, manufacturer coupons reimbursed by the producer are taxable on the full pre-coupon price in many states.
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