Consulting is the business of selling your judgment by the hour. The hours have to be accurate; the judgment has to be visible; the invoice has to make sense to a client who wasn't in the room when the thinking happened.
Most consultants underbill. Not by 10% — by 20–40%, because the work that disappears most often is exactly the work consulting clients are paying for: thinking, reading the relevant article, drafting the message that resolves the question in one Slack thread instead of three calls. That work doesn't feel like "real" work, so it doesn't get tracked, so it doesn't get billed, so by the end of the quarter the effective rate is two-thirds of the headline rate.
Time tracking for consultants isn't about surveillance. It's about giving your hourly rate a chance to mean what it says.
This is a practical workflow for independent consultants on Mac — strategy consultants, technical consultants, ops consultants, fractional execs, advisors, anyone who bills by the hour or by the retainer and works mostly out of a Mac.
The consulting-specific problem
A typical consulting week looks nothing like a typical software-engineering or design week. The visible blocks (calls, workshops, written deliverables) are surrounded by a much larger volume of:
- pre-call prep,
- async written advice in Slack/email,
- follow-up reading,
- introductions made on the client's behalf,
- the 20-minute call that should have been an email,
- the email that should have been a call,
- post-mortem thinking after a hard meeting,
- and the slow accumulation of context that makes you valuable in month six.
For hourly consultants, every one of those is billable; for retainer consultants, every one of those eats into the retainer. Either way, the time you don't capture is revenue you've already given away.
What consultants should track
Track in categories that match how the client experiences your value, not how you experience your day.
- Synchronous client time — calls, workshops, in-person meetings. The easiest to bill, the hardest to underbill, and usually less than half of what the client is actually paying for.
- Prep and follow-up time — the 30 minutes before the call where you read the brief, the 45 minutes after where you write the action list. Treat this as billable by default unless your engagement letter says otherwise.
- Async advisory time — Slack, email, voice notes, quick written reviews. Easy to lose, easy to undervalue. Track even the short bursts; they add up to a real percentage of monthly value.
- Independent thinking time — reading, drafting, deep work on a deliverable. Not background research that benefits all clients; the specific thinking attributable to a specific engagement.
- Internal time — your own admin, marketing, business development. Not billable, but worth tracking so you know what your "real" billable utilization is.
If you stop here, you already have a more honest record than 80% of consultants. The rest of this post is about turning that record into a business.
A weekly workflow
Monday morning, Sunday review — the bookends matter more than what happens in between.
Monday morning: set the frame for the week
For each active engagement, glance at the estimate-vs-actual view and ask one question: am I still on the trajectory I sold?
- Hourly engagement, no cap: you mostly want to know the trajectory looks reasonable, so when you send the invoice it isn't a surprise.
- Hourly engagement with a soft cap or expected range: anything trending past the cap is a scope conversation this week, not at month-end.
- Monthly retainer: how much of the retainer is consumed so far, and is the pace sustainable?
Five minutes of attention here saves a 30-minute uncomfortable email three weeks later.
During the week: track at the moment of switching
The single most useful habit: start the timer when you switch context, not when you remember. A timer started 12 minutes into a client call still beats not tracking it at all, but a timer started at the moment you switch from prep to call has full fidelity and zero reconstruction.
Ayron's keyboard-driven command palette (⌘K) is built for this — type the client name, hit return, the timer is running. The friction of starting a timer should be lower than the friction of not starting one.
For async work, batch is fine. A line at the end of a Slack reply session — "45m, Client A, async advisory, follow-up on Q3 strategy thread" — is enough. The point is honesty about the volume, not minute-by-minute granularity.
Friday afternoon: reconcile, then invoice
This is the moment retainer math gets done.
- Pull the weekly view per client. Compare to the engagement terms.
- Anything past expected pace gets a one-line note in your CRM or notes app — context for the next conversation, not an apology.
- Hourly engagements that are ready to bill: invoice. Today. Not next week.
- Retainer engagements: log the consumed amount, note the remaining capacity, decide whether the next week needs prioritization changes.
Friday afternoon invoicing is the single highest-leverage hour in a consulting business. It's the difference between "I'll get paid in a month" and "I get paid in nine days."
Sunday night: the ten-minute review
Ten minutes with the AI weekly report (see What Ayron's AI weekly report actually tells you about your week). Skim the one-paragraph summary and the "watch this" list. Add two items to next week's plan. Done.
Most consultants don't do this because it feels indulgent. The compounding return is that you walk into Monday with a written sense of where you are, instead of catching up for the first 90 minutes of the week.
Retainers, scope creep, and the client conversation
The conversation consultants avoid most often is the one about scope. The version of that conversation that goes well always has the same shape: specific numbers, in writing, before the relationship is strained.
A tracked record turns that conversation from awkward to professional. "In May the retainer covered 32 tracked hours; in June we're already at 41 with a week to go. Either we adjust the retainer or we agree which work falls outside it next month." That's a one-paragraph email, not a confrontation.
The consultants who quietly absorb scope creep aren't being generous — they're being unclear. The tracking makes the conversation possible.
Hourly rate vs. effective rate
The number on your website is your hourly rate. The number that pays your mortgage is your effective rate — total billed revenue divided by total hours worked, including the unbilled ones.
The gap between the two is where consulting margins live. If your headline rate is $200/hr and your effective rate is $135/hr, you're not actually a $200/hr consultant — you're a $135/hr consultant who quotes $200/hr and gives away a third of the work.
Tracking everything (billable and not) is the only way to know which number is real. Ayron's reports surface both side by side; the gap is the first thing a serious consultant should pay attention to.
Mac-first tools that respect the workflow
A consulting Mac is full of context: notes apps, browser tabs, Slack workspaces, calendar overlays, sometimes three Zoom windows. A time tracker that demands a fifth window every time you switch context loses.
What "Mac-first" should mean for a consultant:
- Menu bar timer that's always visible — current task, elapsed time, one click to switch or stop. No app launch required.
- Global keyboard shortcut — start, stop, switch tasks without leaving the app you're in.
- Native invoice generation — when the week is done, you should be invoicing inside the same app that holds the hours, not exporting to a spreadsheet and importing into a third tool.
- Local-first data — your client list is sensitive. The app should work offline and keep your data on your device by default.
- AI that summarizes, not surveils — a weekly review that helps you think, not a productivity score that ranks you.
Ayron is built around these constraints. The competitors that come closest to a Mac-native consulting workflow are mostly web-first dashboards that happen to have a small Mac client; the gap shows up after about a week of real use, when the friction starts to compound.
When tracking is the wrong answer
A small honest note. Tracking is the right answer when:
- You bill hourly or by retainer.
- You want estimate-vs-actual visibility on engagements.
- Your effective rate matters to you.
Tracking is the wrong answer when:
- You bill flat-fee projects with no scope risk and don't care about effective rate.
- You're a senior advisor on a fixed monthly that has no relationship to hours.
- Your engagements are short enough that the admin would cost more than the visibility.
Most consultants are in the first bucket and convince themselves they're in the second. If you don't know which one you're in, track for one month and look at the report. The data will tell you.
A simple next step
If you've never tracked your week with this level of honesty, try one week. Track everything — calls, prep, async, thinking, admin. Don't change your behavior. Don't try to be productive. Just record what actually happens.
Then read the report on Sunday night. You will see one of two things: that your effective rate is close to your headline rate (in which case, good — keep doing what you're doing), or that there's a meaningful gap (in which case, you've just identified the highest-leverage change you could make in your business this quarter).
Either outcome is worth the ten minutes a day.
Ayron is a Mac-first time tracker, invoicing tool, and AI weekly report in one app, built for solo consultants and small studios. Free to try; Pro is $12/mo annual ($15/mo monthly). Get started.