Estimate drift starts at the issue level, and Everhour keeps Linear work tied to logged hours, rates, and invoices.
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Compare each Linear issue's estimate with the hours logged against it. The useful output is a clean comparison: the issue, the original estimate, the person doing the work, the hours recorded, and the variance. That view helps you separate planning misses from tracking gaps before the next project, cycle window, or billing review.
Linear issues can carry properties such as assignee, priority, estimate, cycle, label, and project. Treat the estimate as the planning baseline, then compare it with tracked hours from the same issue. Linear estimate values are effort points, using scales such as Fibonacci, Exponential, Linear, or T-Shirt, so keep point estimates and clock hours as separate fields.
A practical review starts issue by issue. Keep the Linear issue as the work record, keep the estimate value visible, and attach logged hours to that same issue through the time-tracking layer. The comparison answers a narrow question: did the work take more or less measured time than the estimate suggested for that team and work type?
A variance needs interpretation before action. Logged time above the estimate can mean the work was under-scoped, blocked, split poorly, or assigned without enough context. Logged time below the estimate can mean the issue was easier than expected, the estimate scale is too conservative, or time went unrecorded. Require comments on unusual entries so the review explains the reason, not just the gap.
Estimate accuracy improves when the team reviews patterns across similar Linear issues. A single miss is useful, but repeated misses show where the estimate scale needs adjustment. Back-end bugs, customer-reported defects, design QA, and release cleanup should not share one average unless the team expects those work types to take similar effort.
Cycles can provide a review rhythm without becoming the unit of the report. Compare work logged during the cycle window against the issues planned for that period, then look at which issue categories exceeded their estimate most often. The next plan should use that record to size similar work more tightly and leave room for recurring variance.
A free one-off comparison is enough when you need a quick read on one project, one cycle window, or one group of issues. It works best when the team already agrees on the estimate scale, logs time consistently, and only needs a short variance check before planning the next batch of work.
A managed workflow fits when estimate accuracy affects budgets, client billing, or recurring planning. Everhour embeds controls in Linear through its browser extension, syncs Linear project and issue data, and can connect tracked billable time and expenses to invoices. That turns estimate review from a spreadsheet exercise into a record that can support future budgets and client billing.
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 the Linear issue estimate as the planning input and logged hours as the measured work. Compare them on the same issue, then review the variance by issue type, assignee, project, and date range. Keep effort points and hours in separate columns because Linear estimate values are planning units, while hours measure work time.
A team can create its own planning convention, but the records should keep the original point estimate separate from tracked hours. Linear estimate scales describe effort or size, while hours measure elapsed work time. Mixing the two fields hides whether the issue was estimated poorly, tracked incompletely, or affected by scope changes after work started.
The most useful variance is the repeated one. One issue that takes longer than expected may reflect a blocker or unclear requirement. Five similar issues with the same overage show that the estimate pattern is wrong. Review repeated misses by work type before changing the team's general planning assumptions.
A cycle-aligned review can show whether planned issues stayed closer to their tracked hours over the same date range. Use the cycle window as the review period, then compare issues completed or worked during that period. Avoid treating the cycle itself as the cause of the variance; the issue details usually explain the miss.
Missing or late time entries damage the comparison first. An estimate can only be judged against hours that were actually recorded on the matching issue. Require the person doing the work to log time against the issue, add notes for unusual gaps, and correct entries before the review period closes.
Everhour Billing & Invoicing can use tracked billable time and expenses to generate invoices from uninvoiced work, calculate amounts from rates, and exclude non-billable tasks. For Linear work, that lets billable issue time move from tracking records into client-facing invoice lines without rebuilding the timesheet manually.
Everhour syncs Linear project and issue data, then shows issue timers, estimates, reported time, and manual logging controls through its browser extension. Teams can review task estimates, progress, remaining time, and over-estimate hours in reports, keeping the estimate and actual work tied to the same issue context.
Track Linear issue time in Everhour, review estimate variance, and convert approved billable work into invoices with rates, expenses, and non-billable exclusions handled by Everhour.
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