Xero can hold billable project time, and Everhour connects that time to billing workflows when calculations become recurring.
Measure billable utilization against total capacity and see exactly how many hours you're leaving on the table each period.
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A utilization calculation for Xero answers one practical question: out of the available hours you defined, how many became client-billable project time? Xero Projects time entries can be grouped by project, task, user, date, and duration, so the numerator can come from recorded billable project work across the period you select.
The denominator does not come from Xero's accounting ledger. You define it from firm policy, such as contracted hours, scheduled working hours net of leave, or a fixed weekly capacity. Internal administration, training, leave, and other non-billable records stay outside the billable numerator even when the person was working.
Use this formula: billable hours divided by available hours, multiplied by 100. A consultant with 34 billable hours and 40 available hours has 85% utilization. At a $120 standard hourly rate, those 34 billable hours carry $4,080 of standard delivery value, and the effective value across the full 40-hour capacity is $102 per available hour.
A U.S. firm often starts with 40 weekly hours because federal rules require covered nonexempt employees to receive overtime pay for hours worked over 40 in a fixed 168-hour workweek. That produces 2,080 gross annual hours before subtracting company PTO, holidays, unpaid leave, or other nonworking time. The FLSA does not define full-time employment, so the capacity denominator remains an employer policy input.
Xero is useful for the recorded-time side of utilization, especially when time is already tied to project work. The common mistake is dividing billable time by logged time. That weakens the calculation because missing non-billable entries inflate utilization even though total capacity stayed the same.
A stronger Xero workflow sums billable project time first, then divides by a separately maintained capacity figure. If the firm measures utilization against scheduled working hours net of absence, subtract PTO, statutory leave, sickness, and holidays before division. Team, role, and service-line rollups should aggregate billable hours and available hours first, then divide once at the selected reporting level.
A one-off calculator is enough when you need a quick check for one person, one month, and a stable capacity assumption. It also works for a partner review where the Xero billable-hours export is clean and the leave adjustments are already known.
A managed workflow fits better when utilization feeds invoicing, approvals, billing review, or recurring team reporting. Everhour's Xero integration syncs Xero contacts into Everhour clients, exports invoices built from billable hours and expenses as Xero draft invoices, and keeps invoice status, number, issue date, and amount visible after export.
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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Use client-chargeable project time as the billable numerator. Xero Projects time entries tied to billable client work count. Internal administration, leave, training, and non-billable project records do not count toward billable utilization, even when they represent real work time. The denominator still comes from your firm's capacity policy.
Use Xero time entries for utilization and invoices for realization analysis. Utilization compares billable hours with available hours. Realization compares invoiced value with the standard value of billable time. The two measures answer different questions, so invoice totals should not replace billable-hour totals in the utilization formula.
Xero supplies recorded project time, but the available-hours denominator is a firm-policy input. You choose contracted hours, scheduled working hours net of leave, or another approved capacity calendar. A 40-hour week is a common U.S. gross baseline, but federal law does not define full-time employment.
Leave and holidays reduce available hours only when your firm uses a net-working-hours denominator. In that model, subtract PTO, statutory leave, sickness, and public holidays before dividing billable hours by available hours. A total-capacity denominator leaves those hours in place and usually produces a lower utilization rate.
There is no Xero-specific utilization standard. Target utilization is a firm, role, and service-line benchmark, independent of the accounting system used to collect time and invoice data. U.S. federal sources define work-hour and leave rules, but they do not set a professional-services utilization target.
Everhour's Xero integration syncs Xero contacts into Everhour clients, then exports invoices built from billable hours and expenses as Xero draft invoices. After export, Everhour keeps Xero invoice status, number, issue date, and amount visible so billing review does not depend on a separate spreadsheet.
Move recurring utilization checks into an approved billing workflow. Everhour connects billable hours and expenses to Xero draft invoices, keeping invoice status visible in Everhour.
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