Monthly check-ins catch obvious problems: an unpaid invoice, an unexpected software charge, a slow revenue month. What they don’t catch is pattern. A single client growing from 20% to 45% of your revenue over six months. A tool category that’s crept from $300 to $800 a month without a single deliberate decision. An effective hourly rate that’s dropped 18% since you raised your stated rate because non-billable time increased.
These are the things that determine whether your business is actually working, and they’re invisible at monthly resolution. Quarterly reviews exist to surface them.
The ritual described here takes 90 minutes, runs four times a year, and produces three decisions per session. Not insights. Not observations. Decisions, specific changes you’ll make next quarter. That’s the only outcome that justifies 90 minutes of focused work.
Section 1: Revenue Review (30 Minutes)
Pull three reports from your accounting software: total revenue for the quarter, revenue by client, and revenue by service type. You want numbers on a page before you start interpreting anything.
Total revenue vs. target. If you set an annual revenue target (you should, more on that in the annual planning post), divide it by four. How close are you to that quarterly number? A 10% miss is a yellow flag. A 20%+ miss means either your target is wrong or your pipeline is broken. Name which one.
Revenue by client. List every client and their percentage of your total revenue. Any client above 30% is a concentration risk, if they reduce scope, pause, or leave, your business takes a structural hit. Any client above 50% is a serious problem. The rule: no single client should represent more than 30% of revenue once you’ve been operating for 12+ months. If one does, your Q3 action item is diversification: pitch two new clients, upsell a second service to existing smaller clients, or build a pipeline that replaces 20% of that client’s revenue.
Revenue by service type. If you offer more than one service (consulting + implementation, strategy + execution, content + design), track which services are growing. If one service type is shrinking to less than 15% of revenue, either kill it or invest in it. Letting a service limp along is worse than making a clean decision. You spend time maintaining a service offering, writing proposals for it, keeping your skills current, if it’s not growing, that time has a cost.
The one question to answer at the end of this section: Is the revenue I earned this quarter coming from the clients and services I want to build the business on? If not, what specifically needs to change?
Section 2: Expense Review (20 Minutes)
Pull your expense report by category. Look at three things.
Total expenses vs. last quarter. A 5–10% increase with proportional revenue growth is fine. Expenses growing faster than revenue is a compression problem. If revenue was flat and expenses grew, you need to name the categories responsible.
New subscriptions or recurring charges. Scan for anything you added this quarter that you didn’t have last quarter. For each new charge, ask: did this tool earn its cost? Most solos add tools faster than they eliminate them. The discipline is quarterly audit, not perpetual accumulation. Kill anything that didn’t produce a concrete result this quarter.
Unexpected category growth. Sort by category and compare to Q1. If your software category grew from $400 to $700 without a deliberate decision, find the line items. If your subcontractor category grew because you needed backup support, that’s a signal, either hire more deliberately or adjust your capacity model.
Expenses grow silently. Revenue usually requires active effort to grow, you notice when it’s not happening. Expenses require active effort to shrink, and most solos don’t apply that effort until quarterly reviews force them to. The discipline isn’t in identifying the charges. It’s in making an explicit keep-or-kill decision on every recurring cost.
Section 3: Profit Review (15 Minutes)
Three calculations. Do them in order.
Gross margin. Revenue minus direct costs (subcontractors, materials, software directly billable to client work). For most solo service businesses, gross margin should be 85–95%. If it’s lower, your direct costs are too high relative to revenue, price the work higher, scope it tighter, or reduce delivery costs.
Net profit rate. Revenue minus all expenses. Target: 40–50% for a healthy solo business. Calculate yours for the quarter. If you’re below 30%, review the expense section again for the cause. This number matters more than total revenue.
Effective hourly rate. Total quarterly revenue divided by total hours worked (all hours, delivery, admin, sales, marketing, everything). This is your real compensation rate. If your stated rate is $150/hour but your effective rate came out to $73/hour this quarter, your non-billable time ate half your earnings. The fix is either raising stated rates, reducing non-billable hours, or both.
The one question for this section: What was the single expense or time allocation that most compressed my margin this quarter? Name it. Then decide: eliminate it, restructure it, or accept it as a cost of growth.
Section 4: Cash Position (15 Minutes)
Knowing your profit is not the same as knowing your cash position. A profitable quarter with $40,000 in outstanding receivables is not the same as a profitable quarter with cash in the bank.
Current balance. What’s in your business checking account right now? Not what’s coming, what’s there.
Months of runway. Current balance divided by average monthly expenses. If you have $18,000 in the bank and your monthly expenses (including your own draw) average $9,000, you have 2 months of runway. The target: 3–6 months. Below 2 months means your next slow month is a crisis. Build this before you increase spending.
90-day cash projection. List every invoice you’re expecting to receive in the next 90 days, with realistic collection dates. Subtract your expected expenses. What’s the net? If the projection shows you going below 1 month of runway at any point in the next 90 days, that’s the priority: accelerate collections, defer non-essential spending, or close a new piece of work.
Outstanding receivables older than 45 days: list them, assign a collection action, and set a follow-up date before you close the review.
Section 5: Tax Position (10 Minutes)
For US-based solos making estimated quarterly tax payments, this section prevents surprises.
Year-to-date income. What’s your net profit so far this year? Apply your effective tax rate (self-employment tax is 15.3% on net profit; add federal income tax, typically 22–24% for $80K–$150K income; add your state rate). This gives you your estimated annual tax liability.
Payments made vs. owed. Have you made estimated payments for Q1 and Q2? Do they cover at least 90% of the tax you’ll owe? The IRS penalty for underpayment is small but annoying, the bigger problem is writing a large check in April with insufficient cash.
One deduction to maximize. Every quarter, identify one deduction you’re not fully utilizing. Retirement contributions (SEP-IRA allows up to 25% of net self-employment income), home office deduction, professional development, health insurance premiums. Most solos leave $2,000–$8,000 in deductions on the table annually because they don’t track them quarterly.
The Three Decisions That Come Out of Every Review
The review produces data. Data without decisions is reading material. Before you close the session, write down three specific commitments for next quarter. Examples:
- “My largest client is at 47% of revenue. By end of Q3, I will close two new clients that together represent at least 20% of current monthly revenue.”
- “My effective hourly rate dropped to $68. I will raise my stated rate by $20/hour for all new work starting June 1.”
- “I have 1.8 months of runway. I will not make any new discretionary purchases until the buffer reaches 3 months.”
These are not goals, they’re commitments with specific criteria for completion. Put them in your calendar for the first week of next quarter and check them before you run the next review.
Most solos who run this review for the first time find they’ve been operating on assumptions that aren’t supported by their numbers. The revenue feels roughly okay. The expenses feel roughly managed. The quarterly review proves or disproves “roughly.” It usually proves things are less okay than they felt.
The Setup Work That Makes This Faster
The review takes 90 minutes when your books are current. It takes 4 hours when they’re not. That’s the only prerequisite: reconcile your accounts monthly so the quarterly review is analysis, not cleanup.
The tools: accounting software (QuickBooks Self-Employed, FreshBooks, or Wave) with a connected business bank account. Category labels applied consistently. Every expense tagged at entry, not retroactively. Run the quarterly reports and they’re ready to go.
The scheduling: block the review for the first week of April, July, October, and January. Put it in the calendar as a recurring event now. The most common reason solos don’t run this is not discipline, it’s that they never scheduled it. A 90-minute quarterly block is less time than most solos spend arguing with themselves about whether their pricing is right.
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