SPI Research’s 2025 Professional Services Maturity Benchmark found that professional services firms averaged 68.9% billable utilization, below its 75% target. Client calls that go unrecorded, email check-ins, internal work, and missed entries all contribute to that gap.
That gap affects project managers at accounting firms, law practices, and consultancies twice. Incomplete time records weaken the project plan and the final invoice. A team can look busy while its budgets, work in progress, and billing data tell an incomplete story.
Time tracking software for project managers adds the budget, WIP, utilization, and billing view that general task-management tools often leave out. It helps you keep projects on schedule and makes earned revenue visible before invoicing.
How Time Tracking Helps Professional Services Project Managers
Time tracking helps project managers compare actual hours with estimates, see how quickly budgets are being used, and spot scope creep before it becomes a billing problem. It also shows where the workload is landing across the team and creates a reliable record for client invoices. For professional services firms, those records help keep work on schedule and protect project margins.
Project managers in professional services need more than generic productivity advice. Time records connect the team’s work to revenue, client billing, pricing, and capacity decisions.
Consider a five-person accounting team that misses 30 minutes of billable partner time per person each day. That adds up to 12.5 hours a week, or roughly 650 hours a year. Using a $175 hourly rate as an example, the unbilled work would be worth $113,750 in annual revenue.
Research published in Harvard Business Review, based on an AffinityLive study, estimated that moving from weekly timesheet updates to daily tracking could recover $52,000 per professional each year. Timely records help the team account for work while the details are still fresh.
The Real Cost of Poor Time Tracking
Professional services firms sell expertise by the hour or price projects using assumptions about those hours. Incomplete records leave project managers without the full cost of delivery and billing teams without an accurate account of the work.
According to Accelo’s research on time tracking, 69% of employees say they do not track their time accurately. For some businesses, more than 30% of billable time is lost through poor tracking practices.
The problem compounds across three areas:
- Unbilled hours: Time worked but never recorded because someone was too busy to log it
- Underestimated projects: Scope creep eating into profitability because the original time estimates were based on guesswork rather than data
- Write-offs: Hours that get recorded but written off at billing time because you can’t justify them to the client
Accurate, current records give project managers a clearer view of unbilled work, underestimation, and write-offs.
Key Metrics Every Project Manager Should Track
Project managers can use three time-based metrics to connect day-to-day delivery with profitability.
Utilization Rate
Utilization rate measures how much of your team’s available time goes to billable work. According to SPI Research’s 2025 benchmark, the industry standard target is 75% utilization, though actual rates have fallen to 68.9% across professional services organizations worldwide.
To calculate it: divide billable hours by total available hours. If your senior accountant works 40 hours but only bills 28 of them, their utilization rate is 70%.
Why it matters for project managers: low utilization often signals either too much admin work, poor project scoping, or work falling through the cracks. Tracking this by team member and by project helps you spot problems before they become patterns.
Realization Rate
Realization rate tells you how much of the time you bill actually gets paid. You might log 100 hours on a project, but if the client negotiates down or you write off hours, your realization rate suffers.
Clio’s 2024 Legal Trends Report data for mid-sized law firms shows average realization rates of 83%, meaning 17% of billable hours never make it onto client invoices.
For project managers, tracking realization by project type and client helps identify where estimates need adjusting and which clients consistently require write-offs.
Project Profitability
Project profitability combines time, billing rates, and costs to show whether a project made money. A fixed-fee project may finish on schedule and still lose margin if it takes twice the estimated hours.
With project budget and profitability tracking, you can spot these issues in real-time rather than discovering them at project close.
Time Tracking by Profession
The useful level of detail changes by profession. A legal matter, an accounting engagement, and a consulting retainer each need a different tracking structure.
For Law Firm Project Managers
Legal work demands precise time documentation for invoices, billing disputes, and potential audits. Most law firms use 6-minute (0.1 hour) billing increments as standard practice.
According to Clio’s Legal Trends Report, lawyers bill 2.6 hours, about 33% of an 8-hour workday, on average. That leaves a wide gap between the working day and the hours that reach an invoice.
Key considerations for legal project management:
- Matter-based tracking: Every minute needs to tie to a specific client matter, not just a general client
- Detailed descriptions: Vague entries like “legal research” will not survive client scrutiny; specific task descriptions are essential
- Contemporaneous recording: Entries made while the work is fresh give billing teams more useful detail than end-of-day reconstruction
Law firm project managers benefit from time tracking tools that allow quick matter assignment and detailed activity descriptions without slowing down billable work.
For Accounting Firm Project Managers
Accounting work moves between steady advisory work and intense deadline periods. Project managers need time tracking that can handle both.
According to the 2025 Rosenberg MAP Survey, accounting firm utilization rates range from 54.1% to 57.4% depending on firm size, with billing rates continuing to rise an average of 6.1% year-over-year.
Key considerations for accounting project management:
- Engagement-level tracking: Time should roll up to specific engagements (audits, tax returns, advisory projects) for accurate engagement profitability
- Busy season capacity planning: Historical time data helps project managers plan staffing and set realistic client expectations
- Multiple client work: Team members may move across 10 or more clients in a day, so switching needs to be quick
Tools that integrate directly with accounting software like Xero or QuickBooks eliminate double-entry and keep time data flowing into billing automatically.
For Consulting Agency Project Managers
Consulting projects often start with defined scopes that evolve as client needs become clearer. This makes scope creep the consulting project manager’s constant battle.
PMI’s 2018 Pulse of the Profession found that 52% of projects completed in the previous year experienced scope creep or uncontrolled changes. For a consulting project manager, that makes early visibility into time against scope especially useful.
Key considerations for consulting project management:
- Phase-based tracking: Breaking projects into phases lets you compare actual time against estimates before scope creep becomes a profit drain
- Retainer management: For ongoing advisory relationships, tracking time against monthly retainers prevents uncomfortable conversations about going over hours
- Client profitability analysis: Some clients demand more attention than their contracts justify; time data reveals which relationships need renegotiation
Project managers at consulting firms benefit from budget tracking tools that show real-time progress against project estimates.
What Good Time Tracking Looks Like
A useful time tracking system needs to fit the pace and context of client work.
Make It Fast
If logging an entry interrupts the work, your team will fall back on notes, spreadsheets, or memory.
Look for quick client assignment, pre-configured project and task categories, and a Timer that runs in the background. Lower effort makes consistent tracking easier.
Keep It Contextual
Details fade as the day fills up. Entries reconstructed hours later tend to become vague summaries that are harder to review and bill.
AffinityLive’s survey of more than 500 professional services workers found that people who completed timesheets less than once a day were half as likely to describe their records as accurate.
Contextual time tracking happens in the moment: a timer when someone opens a client file, a quick entry after a call, or notes added while the work is fresh. Mobile access lets the team record those details between meetings instead of reconstructing them later.
Connect It to Billing
Keeping time records separate from billing creates manual work and errors. When your team logs a Time Entry, it should flow into your invoicing process with the correct client code, billing rate, and description.
MinuteDock’s integrations with accounting platforms make this connection automatic. Time logged during the day becomes an invoice with a few clicks, not a reconciliation project at month-end.
Implementing Time Tracking on Your Projects
If your team is used to estimating hours at week’s end, set up the change around a few clear habits.
Start with the Why
Explain how complete records support project budgets, billing, and capacity planning. The AffinityLive research reported by Harvard Business Review estimated that moving from weekly to daily time tracking could recover $52,000 per professional each year in billable time.
At an illustrative rate of $175 per hour, recording one additional billable hour per working day would account for more than $43,000 in annual revenue. Managers can use their own rates and working days to show the effect without making promises about the result.
Set Clear Expectations
Vague instructions lead to vague compliance. Be specific:
- When should time be logged? (Contemporaneously, at least twice daily, or by end of day?)
- What level of description detail is expected? (Matter + activity, or just client?)
- How should non-billable time be categorized?
- What happens when someone forgets?
Having these answers documented prevents the “but I didn’t know” conversations that derail adoption.
Fit the Tool Around the Work
Time tracking is easier to maintain when it stays close to the work instead of adding a separate admin routine.
Choose a tool with browser access, mobile apps, and a persistent timer that stays visible while the team works on other things.
Lead by Example
If project managers and partners leave their own timesheets until Friday, the team notices. Leaders who log time during the week make the expected habit visible.
Using Time Data for Better Project Decisions
Accurate time records become more useful when project managers put them into estimates, staffing, and client reviews.
Improve Future Estimates
Completed projects give you a reference point for the next estimate. If the team takes 40% longer on a certain type of work, adjust the estimate or investigate the gap.
MinuteDock’s reporting tools let you compare estimated versus actual time by project type, client, and team member, revealing where your assumptions need updating.
Spot Problems Early
A project that uses hours faster than expected gives you time to act. Current records can surface the problem in week two, when you can still adjust scope or staffing, instead of at project close.
Optimize Team Allocation
Reviewing time by person and project shows where each team member works best. Maybe your junior staff takes twice as long on complex research but handles routine compliance faster than anyone. Good team time tracking lets you match people to projects where they perform best.
Protect Your Margins
Some clients call more often, request more revisions, and need more support than the price allows for. Time records show which relationships are profitable and which need a pricing conversation.
Frequently Asked Questions
What’s the best way to track billable hours across multiple projects?
Use a time tracking tool with quick client/project switching, persistent background timers, mobile apps, and billing integration. Establish clear project codes so team time data can be filtered and reported accurately.
How do project managers calculate utilization rate?
Utilization rate equals billable hours divided by total available hours. If a team member has 40 available hours and bills 32, their utilization is 80%. According to SPI Research, top firms target 75% utilization, though actual industry averages hover around 69%.
What time tracking practices help prevent scope creep?
Define clear project phases with time estimates for each. Compare actual time with those estimates as work progresses. If a phase uses more hours than expected, adjust the scope, renegotiate, or allocate more resources. MinuteDock’s budget tracking provides visual progress indicators that make overruns easy to spot.
What billing increments should professional services firms use?
Law firms traditionally use 6-minute (0.1 hour) increments, while accounting and consulting firms often use 15-minute increments. The key is consistency; whatever increment you choose, ensure your entire team uses the same standard so time data can be meaningfully compared.
How do I get my team to actually track their time?
Keep the process close to the work, explain how the records support budgets and billing, and set a clear deadline for entries. AffinityLive’s research found that people who completed timesheets less than once a day were half as likely to describe their records as accurate, so frequency is a useful place to start.
Getting Started
Time tracking gives project managers a record they can use before a budget or invoice goes wrong.
Accurate records support better estimates, show which client work is profitable, and give the team credit for the work it has done. They also make budget and pricing conversations easier to have while there is still time to change course.
MinuteDock is built for professional services teams, including accountants, bookkeepers, lawyers, and consultants. It keeps time tracking close to the work and connects those records to billing.
