Professional invoices need complete records and polished delivery. Everhour turns tracked billable work into invoice-ready billing workflows.
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Use this page when you need a finished invoice that looks credible, records the transaction clearly, and gives the client a direct path to payment. A professional invoice is separate from a receipt, estimate, or quote. The invoice requests payment for work or goods delivered. A receipt proves payment was received. An estimate or quote presents a price before the work is approved.
For ordinary United States private-sector businesses, no single federal invoice format controls every invoice. The IRS treats invoices as supporting documents for business records, and businesses may use any recordkeeping system that clearly shows income and expenses. That leaves the practical standard in your hands: complete parties, clear charges, correct tax treatment, payment terms, and enough detail for audit, client approval, and collections.
A professional invoice should identify the seller and buyer, use a unique invoice number, show the issue date and due date, and list the goods or services sold. Line items should show quantity, rate, and extended amount so the client can see how the total was built. Add the subtotal, any discount, applicable sales tax, total due, payment terms, and remit-to details.
Federal contract invoices have a stricter national model. FAR 32.905 defines a proper invoice with contractor name and address, invoice date and number, contract or order references, descriptions, quantities, unit and extended prices, shipping and payment terms, remittance details, contact details for defects, and TIN or EFT banking data when agency procedures require them. Private invoices do not need to copy that format, but the same completeness improves approval speed.
The United States does not use a national VAT or GST invoice regime. Sales and use tax comes from state and local rules, so a professional invoice should not apply one flat national tax rate. Washington, for example, has a 6.5% state sales-tax portion plus a local portion that varies by city or county, collected based on where the customer receives the goods or services.
Service taxability also varies 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 also need nexus checks. South Dakota's law reviewed in South Dakota v. Wayfair applied above $100,000 in annual in-state sales or 200 separate transactions, while other states set their own thresholds.
A professional invoice app is enough when you need a one-off PDF, a clean set of fields, and a client-ready document for a single job. It works well for occasional billing, simple line items, and businesses that already track work, approvals, taxes, and payments somewhere else. The app should still let you control invoice numbers, terms, tax lines, discounts, and payment details before export.
A managed workflow is better when billable time, expenses, project rates, approvals, and accounting handoff must stay connected. Everhour Billing & Invoicing converts tracked billable time and expenses into invoices, excludes non-billable work, uses client defaults for taxes, discounts, and payment terms, and exports invoices to QuickBooks Online, Xero, or FreshBooks with status synced back to Everhour.
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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A professional invoice needs seller and buyer details, a unique invoice number, issue date, due date, line items, quantity, rate, subtotal, tax line when applicable, total due, payment terms, and remit-to instructions. Add contract or purchase-order references when the client uses them for approval. Clear fields reduce disputes and make the invoice easier to match to records.
A United States invoice does not need a VAT or GST number because the United States does not operate a national VAT or GST invoice regime. Sellers that make taxable sales may need state-level sales-tax registration instead, such as a California seller's permit for retailers engaged in business in California selling taxable tangible personal property.
Include an EIN or other taxpayer identification details only when the payer, contract, or agency procedure requires it. Businesses commonly provide a Taxpayer Identification Number through Form W-9 to payers that must file IRS information returns. Federal contract invoices include a TIN only when required by agency procedures.
The most damaging mistake is mixing incomplete line-item detail with a vague total. A client should see what was sold, the quantity, the rate, and the extended amount. A single unexplained total forces the client to ask for backup, slows approval, and weakens the invoice as a supporting document for business records.
Net 30 is not required for ordinary private-sector United States invoices unless a contract, policy, or client agreement uses it. Federal contract payment timing is more defined. FAR 32.904 generally sets payment due for most federal contract invoices as the later of 30 days after receipt of a proper invoice or 30 days after government acceptance.
Everhour Billing & Invoicing turns tracked billable time and expenses into invoices, calculates amounts from rates, and excludes non-billable tasks. Client settings can hold contacts, taxes, discounts, and payment terms, so invoice defaults stay consistent across projects and exported drafts.
Everhour exports invoices to QuickBooks Online, Xero, or FreshBooks as drafts, then shows synced invoice status, number, issue date, and amount back in Everhour. That keeps project billing records connected after accounting finishes the payment workflow.
Create polished invoices from approved billable time, rates, expenses, and client defaults. Everhour Billing & Invoicing keeps invoice amounts, accounting exports, and status updates connected to project work.
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