IT consulting invoices depend on approved delivery hours, rates, and scope rules. Everhour turns tracked billable work into invoices.
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For IT consultants, the core question is simple: how much approved client work turns into billable revenue under the contract? Time-and-materials work usually uses labor hours multiplied by fixed hourly rates, while fixed-fee, managed-services, subscription, and performance-based contracts need a different check: the implied hourly value of the delivery time already spent.
The result helps you price a weekly invoice, audit a statement of work, compare delivery time with non-billable support, or check utilization against a planning target. SPI's 2025 benchmark reports 1,438 annual billable hours for IT consulting and 610 annual non-billable hours, so separating delivery time from admin, training, PTO, and sales support is not optional.
The basic billable amount is approved billable hours multiplied by the applicable hourly rate. If the contract uses different roles, calculate each role separately before adding the totals. Do not average a cloud architect rate, developer rate, and support analyst rate unless the client contract says to use a blended rate.
For example, an IT consulting invoice includes 31 approved implementation hours at $190 per hour and 12 approved QA/support hours at $135 per hour. The implementation line is $5,890, the QA/support line is $1,620, and the pre-tax billable amount is $7,510. If those 43 billable hours came from 50 total worked hours, weekly utilization is 86%.
Billable hours and utilization answer different questions. The invoice amount uses contract rates and approved client work. Utilization measures how much working capacity became billable delivery. SPI defines employee billable utilization as annual billable hours divided by 2,000, which is a benchmark denominator, not a substitute for your timesheet total.
This distinction matters when a consultant is busy but not fully billable. Internal architecture reviews, proposal help, training, travel policy exceptions, and rework outside the statement of work can reduce invoice value without reducing total effort. SPI reports IT consulting billable utilization at 71.0% in 2024, while many professional-services leaders plan around 75%, or about 1,500 annual billable hours.
A one-off calculation is enough when you are checking a small invoice, testing a rate card, or estimating the implied hourly value of a fixed-fee project. It is also enough when all approved time sits in one clean spreadsheet and the client has no special billing rules.
A managed workflow becomes necessary when multiple consultants, role rates, non-billable tasks, expenses, approvals, or accounting handoffs are involved. Everhour Billing & Invoicing converts tracked billable time and expenses into invoices, calculates amounts from rates while excluding non-billable work, and exports invoices to QuickBooks Online, Xero, or FreshBooks.
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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Add only approved client-facing delivery time, then multiply those hours by the contract rate for the relevant role, project, or task. For time-and-materials work, the labor component is direct labor hours billed at fixed hourly rates specified in the contract. Keep non-billable administration, training, business development, and out-of-scope rework separate.
Use the rate structure stated in the client contract. A blended rate treats different consultants as one billing rate, while role-based pricing keeps architect, developer, analyst, and support work separate. Role-based rates give cleaner margin visibility, but they require accurate time entries by person, task, or role before invoice calculation.
SPI reports IT consulting employee billable utilization at 71.0% in 2024. Many professional-services executives aim for at least 75% billable utilization, which equals roughly 1,500 billable hours per year. Utilization above 80% often signals strong performance, but sustained levels that high can create burnout risk.
No. The United States has no federal VAT/GST or national sales-tax rate for billed professional time. Tax treatment is state and local, and some services may not be taxable. Use a jurisdiction-specific tax input only when the IT consulting service is taxable in the client or service location that applies.
The common mistake is mixing earned delivery time with invoice-ready time. Earned work can still be excluded because of scope limits, billing errors, unapproved entries, or incorrect statements of work. SPI reports 4.6% revenue leakage for IT consulting, meaning earned revenue lost before billing through those kinds of issues.
Everhour Billing & Invoicing converts tracked billable time and expenses into invoices, calculates invoice amounts from rates, and excludes non-billable work. Invoices can be exported to QuickBooks Online, Xero, or FreshBooks, with invoice status, number, issue date, and amount synced back to Everhour.
Everhour supports project, member, and custom task rates, so IT consulting work can be priced by project rate, person rate, or task-specific rate. Rate changes can be dated, which keeps older reports tied to the rates that applied when the work was performed.
Replace manual billing checks with approved time, role-based rates, and invoice exports. Everhour connects IT consulting time records to client billing with less spreadsheet cleanup.
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