Invoice Calculator
Hourly Invoice
Calculate invoice total based on hours worked
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Itemized Invoice
Calculate invoice with multiple line items
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Formula
Invoice Total = (Sum of Line Items - Discount) × (1 + Tax Rate). Line Item = Unit Price × Quantity.
Frequently Asked Questions
How do I calculate an invoice total?
Invoice Total = (Hourly Rate × Hours + Additional Items - Discount) + Tax. List each line item, calculate the subtotal, apply any discounts, then add applicable sales tax to arrive at the total amount due.
Should I charge sales tax on freelance invoices?
It depends on your state and the type of service. Most states do not charge sales tax on services, but some do (e.g., Hawaii, New Mexico, South Dakota). Physical products are generally taxable. Consult your state tax authority for specifics.
What should be included on an invoice?
A professional invoice should include: your business name and contact info, client name, invoice number, date, payment terms, itemized list of services/products with quantities and prices, subtotal, taxes, total amount due, and payment instructions.
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