United States invoices rely on contracts, state sales tax rules, and records. Everhour keeps rates tied to billable work.
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Use this page to prepare a United States invoice for a client, customer, agency, or internal billing file. For ordinary private-sector business, no prescribed federal private-sector invoice form controls the layout. The practical goal is a document that identifies the seller, buyer, date, invoice number, line items, price, tax treatment, payment terms, and remittance instructions clearly enough to support payment and bookkeeping.
IRS Publication 583 treats invoices as supporting documents that record business transactions and show the amounts and sources of gross receipts. That makes consistency more valuable than decoration. A usable invoice should match the contract, quote, purchase order, or statement of work, then show the exact goods, services, dates, quantities, rates, and amounts that explain the charge.
Start with the seller name, business address, customer name, invoice date, invoice number, due date, and payment instructions. Add each line item with a description, service period or delivery date, quantity, rate, and extended amount. A service invoice can show consulting at `$150 per hour`, a project milestone, or a flat monthly retainer, as long as the line tells the buyer exactly what they are approving.
Add discounts, reimbursable expenses, sales tax, shipping, credits, and deposits only when they apply. The United States has no VAT or GST invoice number, so a United States invoice should not copy VAT-style fields from another country. Sellers that make taxable sales may need state-level sales-tax registration, such as a California seller's permit for retailers engaged in business in California selling taxable tangible personal property.
State and local sales and use tax rules drive the tax line on a United States invoice. There is no single national rate. Washington, for example, has a 6.5% state portion plus a local portion that varies by city or county, and the combined tax is collected based on where the customer receives the goods or services.
Service taxability also changes by state and service type. California generally taxes retail sales of tangible personal property and only some service or labor charges, while Texas defines 16 broad categories of taxable services. Remote sellers must check nexus rules before invoicing customers in another state. South Dakota v. Wayfair upheld a law applying to sellers with more than `$100,000` in sales into the state or 200 or more separate transactions annually.
A one-off invoice works for a small job, a single reimbursable expense, or a client that needs a simple PDF. It is enough when the amounts come from a clear agreement and the tax treatment has already been checked. Federal contract work needs more structure because FAR 32.905 defines proper invoice fields, including contractor details, invoice date and number, contract references, line items, payment terms, remittance details, and TIN or EFT data when required.
A managed workflow matters when invoices come from time, different billable rates, project budgets, or repeated client work. Everhour separates cost and billable rates, supports default per-person rates with per-project overrides, preserves dated rate changes, and prices billable work by project, member, or task. That keeps the commercial rate logic connected to the invoice instead of buried in a spreadsheet.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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No prescribed federal private-sector invoice form applies to ordinary United States businesses. Federal tax records must clearly show income and expenses, and invoices serve as supporting documents. Client contracts, state tax rules, accounting policy, and industry practice usually determine the invoice layout for private-sector transactions.
A United States invoice should not show VAT or GST unless the transaction involves a foreign tax regime that actually applies. The United States uses state and local sales and use tax, not a national VAT or GST invoice system. The seller should show sales tax only when state and local rules require collection.
The common error is using one default sales tax rate for every customer. United States rates and taxability depend on state and local rules, the product or service sold, nexus, and the place of sale. A seller should confirm the customer location and taxable category before adding the tax line.
Federal procurement invoices follow FAR rules when the contract requires them. FAR 32.905 defines proper invoice fields such as contractor name and address, invoice date and number, contract or order references, item descriptions, quantities, unit and extended prices, payment terms, remittance details, and TIN or EFT banking data when agency procedures require them.
Private-sector payment terms come from the contract, purchase order, or business policy. Federal contract invoice payments have a clearer baseline: FAR 32.904 generally sets the due date as the later of 30 days after the billing office receives a proper invoice or 30 days after government acceptance, with shorter timelines for some food and construction payments.
Everhour separates internal cost rates from client-facing billable rates, then applies default per-person rates or per-project overrides. Rate changes can be dated, so older reports keep the original calculation, and billable projects can use project rates, member rates, or custom task rates.
Everhour Billing & Invoicing creates invoices from selected uninvoiced time and expenses. After time is included on an invoice, Everhour marks it as invoiced, so the same billable work does not appear again on a future invoice draft.
Create the first invoice when the job is simple. For repeat billing, connect rates, time, and project pricing in Everhour so approved work becomes accurate billable revenue.
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