Technology billing often mixes hours, milestones, and expenses. Everhour turns approved project time into invoice-ready records.
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Technology teams need to bill clients without losing the link between scope, time, and cost. A useful invoice shows the client exactly which work is being charged, which period it covers, which project or statement of work it belongs to, and which payment terms apply. Software teams, IT service providers, SaaS consultants, developers, and technology contractors all need that trail when finance or a project sponsor reviews the bill.
A technology invoice commonly follows one of three models: time and materials, fixed fee, or milestone billing. Time and materials billing uses recorded labor hours by role, rate, and date. Fixed-fee and milestone invoices trace back to a scoped estimate, phase, sprint, deliverable, or statement of work. The invoice should make that connection clear enough for finance, project leads, and client approvers to read without asking for a separate explanation.
A time-and-materials invoice should separate labor from reimbursable expenses. A clean labor line can read: Senior developer, API integration, June 1-15, 24.5 hours at $125 per hour. Expenses such as travel, computer usage, incidental services, and direct materials belong on separate lines when they are reimbursable, so the client can see that the same cost was not charged twice.
A milestone invoice needs a different structure. Instead of listing every hour, it should name the accepted deliverable, phase, or sprint goal and connect the amount to the approved scope. Software estimates should reflect cost, schedule, personnel, quality, expected outcomes, assumptions, and uncertainty. A milestone invoice that says only "development services" weakens that audit trail and makes approval harder when the client compares the bill to the original quote.
Technology billing creates disputes when the invoice hides the decision that drove the charge. Clients need to see whether the amount comes from actual hours, a fixed project price, a change request, a pass-through expense, or an accepted milestone. Significant tradeoffs around quality, cost, and schedule should be visible before the invoice stage through the quote, estimate, or statement of work.
Federal technology contractors face stricter documentation rules. Time-and-materials and labor-hour amounts are computed from the applicable hourly rates multiplied by direct labor hours performed, with fractional hours payable on a prorated basis. Vouchers need support such as individual daily job timekeeping records, and FAR time-and-materials work requires notice if expected costs for the next 30 days plus accrued costs will exceed 85% of the contract ceiling price.
A one-off invoice works for a small fixed-fee project, a single sprint, or a quick consulting engagement with simple terms. It is enough when you already know the amount, the scope is accepted, and no one needs a durable trail of billable versus non-billable work. The invoice still needs clear client details, invoice date and number, line descriptions, amounts, payment terms, and any applicable state or local sales tax treatment.
A managed workflow becomes the better choice when tracked time, rates, expenses, approvals, and accounting handoff all affect the bill. Everhour Billing & Invoicing converts uninvoiced billable time and expenses into client invoices, calculates amounts from rates while excluding non-billable work, applies client defaults such as taxes, discounts, and payment terms, and exports invoices to QuickBooks Online, Xero, or FreshBooks as drafts.
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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Time and materials fits work where the extent, duration, or cost is hard to estimate at the start. Fixed-fee and milestone billing fit scoped work with accepted deliverables, phases, or sprint goals. The invoice should follow the agreement, not the other way around, because the billing model controls whether you show hours, deliverables, expenses, or project progress.
A technology invoice should include the seller and client details, invoice date and number, project or contract reference, service period, line descriptions, quantities or hours, rates, extended prices, reimbursable expenses, payment terms, and remittance details. Federal contract invoices have defined proper-invoice fields under FAR rules, including contract references, line details, terms, payee details, contact details, and TIN or EFT data when required.
A client-facing invoice should show the level of detail the contract, approval process, and relationship require. Time-and-materials work often needs labor detail by role, task, date, or person. A fixed-fee milestone invoice can stay focused on the accepted deliverable, with supporting time records kept separately for internal review, profitability analysis, or contract substantiation.
The United States does not use a national VAT or GST invoice regime. Sales and use tax obligations come from state and local rules, with taxability depending on nexus, the product or service sold, and where the sale is sourced. A seller that makes taxable sales may need state-level sales-tax registration, not a federal VAT or GST number.
Mixing reimbursable expenses into labor rates and then listing the same expenses again creates double billing risk. Separate direct labor, pass-through expenses, direct materials, travel, and other reimbursable costs. Software-engineering ethics guidance treats double billing as a deceptive financial practice, so invoice structure should make the source of each charge visible.
Everhour Billing & Invoicing converts tracked billable time and expenses into invoices, calculates amounts from project, member, or task rates, and excludes non-billable work. Teams can group invoice lines by project, task, person, date, or another available breakdown, then export drafts to QuickBooks Online, Xero, or FreshBooks.
Everhour syncs exported invoice status, invoice number, issue date, and amount back into Everhour after invoices move to QuickBooks Online, Xero, or FreshBooks. Project and billing reports can then show billable, non-billable, invoiced, and uninvoiced amounts without rebuilding the invoice history manually.
Turn approved technology work into invoices with rates, expenses, terms, and accounting export handled in one flow. Everhour connects tracked billable time to client-ready billing.
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