Everhour connects tracked project time to billing workflows, so managers can turn approved work into clearer client invoices.
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Managers usually invoice against a project scope, authorization, or contract. The practical job is to show the client what work was delivered, which resources or labor categories were used, which expenses are reimbursable, and which payment terms apply. A clear invoice gives finance teams enough detail to approve payment without asking the project manager to rebuild the billing story from emails, time logs, and spreadsheets.
For ordinary U.S. private-sector businesses, no single federal invoice form applies. Invoices still matter as supporting documents for business records because they show amounts and sources of gross receipts. Federal contracts are the clearest national exception. A proper invoice under FAR rules includes contractor details, invoice date and number, contract or order references, line items, payment terms, remit-to details, and extra TIN or EFT banking data when agency procedures require them.
A fixed-price project bills the agreed amount for a defined scope. That invoice should make the milestone, deliverable, or phase easy to match against the agreement. A line such as "Implementation phase 2, fixed fee, $7,500" works when the contract ties that amount to a named phase. The invoice should not imply that the amount changes just because actual labor cost ran higher or lower.
Time-and-materials billing needs more detail because the amount comes from direct labor hours at specified fixed hourly rates plus actual material costs. A manager's invoice should show labor category, hours, rate, extended amount, and pass-through expenses. A labor-hour contract removes the materials side, so the invoice centers on labor categories, hours, and fixed rates. Cost-reimbursement work requires allowable incurred cost support, including direct labor, direct travel, other direct costs, and properly allocable indirect costs when the contract allows them.
A contract-based project invoice should identify the contract or authorization, invoice date, invoice number, item descriptions, quantities, unit measures, unit prices, extended prices, payment terms, remit-to details, and a defect-contact person when the contract requires one. The invoice also needs enough project context for the approver to connect the charge to a purchase order, statement of work, work order, or client budget line.
U.S. invoices do not use a national VAT or GST invoice regime. Sales and use tax is state and local, and the correct treatment depends on nexus, product or service taxability, and where the sale is sourced. Washington, for example, has a 6.5% state sales tax portion plus a local portion based on where the customer receives the goods or services. 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.
A free one-off invoice works when the manager has a small number of client invoices, clean source data, and a contract that already states the price, due date, tax treatment, and payment instructions. It also works for a simple fixed-fee milestone where one line item and a short description tell the full story. The risk starts when hours, rates, expenses, change orders, and non-billable work live in separate systems.
A managed workflow matters when tracked billable time per client or project becomes the source for the invoice. Everhour supports that handoff by separating billable and non-billable time through project billing status, task-level non-billable controls, custom task rates, member-rate exceptions, and admin reports with billable time, non-billable time, billable amount, and cost. That structure keeps project billing closer to the approved work record.
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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The contract controls the billing model. Fixed-price work bills the agreed amount for a defined scope. Time-and-materials work bills direct labor hours at specified fixed hourly rates plus actual material costs. Labor-hour work bills labor hours only. Cost-reimbursement work bills allowable incurred costs within the contract's terms and usually needs cost support.
Ordinary U.S. private-sector invoices do not follow a single federal tax invoice format, and the United States does not use a national VAT or GST invoice regime. Invoices still support federal tax records because they document business transactions, gross receipts, and expenses. Federal procurement invoices follow FAR requirements when the seller is billing a U.S. government contract.
A client approver needs the contract or authorization reference, invoice number, invoice date, line-item descriptions, quantities, unit measures, unit prices, extended prices, payment terms, and remit-to details. A defect-contact person also belongs on the invoice when the contract requires one. Project managers should match invoice wording to the statement of work or purchase order.
Time-and-materials and cost-reimbursement invoices should separate labor from reimbursable costs. Labor lines need hours, labor categories, rates, and extended amounts. Expense lines need the category, amount, and support required by the contract. Combining the two into one vague line makes approval harder and weakens the record behind the billed amount.
Private-sector payment timing comes from the contract, client policy, and applicable law. U.S. federal contracts use a specific benchmark: the standard due date is generally the later of 30 days after the billing office receives a proper invoice or 30 days after government acceptance of the supplies or services. Private late fees follow contract terms and applicable law.
Everhour lets admins set project billing status, mark specific tasks as non-billable, use custom task rates, and set member-rate exceptions. Admin reports can show billable time, non-billable time, billable amount, and cost, so managers can review invoice-ready work before billing a client.
Everhour Billing & Invoicing converts uninvoiced billable time and expenses into client invoices. Invoice lines can be grouped by project, task, person, date, or another available breakdown, and invoices can be exported to QuickBooks Online, Xero, or FreshBooks as drafts.
Track billable and non-billable project work, review admin billing reports, and invoice from approved time records with Everhour, so manager billing stays tied to real project activity.
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