Everhour keeps billable work organized, while secure invoicing keeps client, tax, and payment details controlled.
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Use this page when you need to create an invoice that looks complete, protects billing details, and gives the client a reliable document to approve and pay. A secure invoice app should help you enter the seller, buyer, invoice number, dates, line items, tax line, total, payment terms, and remit-to details without rebuilding the layout each time.
For ordinary United States private-sector businesses, no single federal invoice-format statute prescribes one national invoice form. Invoices still matter because they support business records. IRS Publication 583 lists invoices among the supporting documents that record business transactions and show the amounts and sources of gross receipts.
A usable invoice identifies the seller and buyer, gives a unique invoice number, shows the issue date and due date, and lists each charge as a description, quantity, rate, and line total. It also separates subtotal, tax, discounts, total due, payment terms, and remittance instructions so the client can match the invoice to the work.
Keep an invoice distinct from nearby documents. A quote or estimate offers pricing before work starts. A receipt proves payment received. An invoice requests payment for delivered goods or services. That distinction matters for records, client approval, and follow-up because each document answers a different billing question.
Security starts with reducing unnecessary exposure. Send the finished invoice as a fixed document, keep editable source files limited to the people preparing bills, and avoid pasting bank details, taxpayer IDs, or client contacts into informal messages. A secure workflow also keeps invoice numbers consistent so missing, duplicated, or altered documents stand out during review.
United States sales-tax handling adds another control point. The country does not use a national VAT or GST invoice regime, and there is no single national sales-tax rate. State and local sales and use tax rules govern taxable sales, rates, nexus, and service taxability. Use the buyer location, product or service type, and state registration requirements before adding a tax line.
A one-off secure invoice app is enough when you bill occasionally, have a small number of line items, and only need a downloadable invoice for the client and your records. It works best when the amount is already known, the tax treatment is settled, and the invoice does not need to pull from approved timesheets.
A managed workflow fits recurring client work, hourly billing, mixed billable and non-billable tasks, and projects with changing rates. Everhour can connect tracked time to billing reports so admins see billable time, non-billable time, billable amount, and cost before an invoice is prepared.
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 secure invoice app should protect client names, addresses, contact details, payment instructions, invoice numbers, tax details, and any taxpayer identification details you choose to include. Limit editable access, keep the final invoice in a fixed format, and store the record where you can retrieve it for accounting, client disputes, and income documentation.
A United States invoice does not need a federal VAT or GST number because the country does not use a national VAT or GST invoice regime. Sellers that make taxable sales may need state-level sales-tax registration, such as a seller permit or sales-tax account, depending on the state, activity, and product or service sold.
Sales tax belongs on an invoice only when the sale is taxable under the applicable state and local rules and the seller has a collection obligation. Rates vary by location. Washington, for example, has a 6.5% state portion plus a local portion that varies by city or county and is based on where the customer receives the goods or services.
An invoice number does both jobs. It helps the client identify the bill, and it helps you detect gaps, duplicates, and unauthorized changes in your billing records. Use a consistent sequence, avoid reusing numbers, and keep canceled or revised invoices documented instead of quietly replacing them with unrelated files.
Federal contract invoices follow specific procurement rules. FAR 32.905 defines a proper invoice with fields such as contractor name and address, invoice date and number, contract or order references, line-item descriptions, quantities, prices, payment terms, remittance details, and TIN or EFT banking data when agency procedures require them. FAR 32.904 generally uses a 30-day payment timing standard for most federal contract invoice payments.
Everhour supports billable and non-billable time through project billing status, task-level non-billable controls, custom task rates, member-rate exceptions, and admin reports. Admins can review billable time, non-billable time, billable amount, and cost before client billing moves forward.
Track billable work before invoice day. Everhour separates billable and non-billable time, applies project or task rates, and gives admins the billing totals needed for cleaner invoices.
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