The annual budget in an afternoon

The shape of a solo-practice budget in an afternoon

A usable annual budget has exactly four parts: fixed costs you can list from memory, a conservative revenue estimate built from your actual booked-visit trend rather than a full schedule, a tax reserve carved off the top, and a retirement contribution funded on purpose rather than from whatever's left in December. Building it once, in one sitting, beats refining it forever.

Start with the number you already know best—last year's fixed costs, or if you're newer than a year, the startup budget you built when you opened. Rent or a home-office allocation, malpractice insurance, EHR and scheduling software, licensure and CE, a bookkeeper or accountant, and any recurring subscriptions belong on one list, totaled once. Revenue is the harder half: use your actual average booked-visit count over the last two or three months, not your theoretical full panel, and multiply by your blended per-visit collection rate rather than your fee schedule—what you collect, not what you bill, is the number that pays the bills.

Start from take-home, then work backward

Work backward from what you actually need to draw, not forward from what a full schedule could theoretically produce. Set a target monthly take-home first—what covers your household budget plus a margin—and treat everything else in the plan as the machinery that has to produce it.

If fixed costs plus a tax reserve plus your target draw exceed what your current visit volume and collection rate actually generate, the budget has just told you something a fee-schedule projection never would: either the schedule needs to fill more, the rate needs to move, or the draw needs to wait. That answer is uncomfortable in an afternoon and far more expensive to discover in November.

The reverse order matters because most solo clinicians default to the opposite: they build a schedule, multiply by a fee, and call the product their income, then discover in practice that collections, no-shows, and slow months erode the theoretical number well before it reaches a paycheck. Starting from the number you need forces the gap to show up on paper first, where it's cheap to solve, instead of in a bank balance six months later.

The line items solo clinicians forget the first year

Ordinary and necessary business costs are the standard the IRS uses for what belongs in a practice budget at all 1Ref 1Internal Revenue Service (2026).Guide to business expense resources.That ordinary and necessary business expenses are the standard governing what belongs in a practice budget—CE, licensure, supervision, malpractice, and office costs among them., and the first-year list runs longer than it looks from the fee schedule. CE hours and licensure renewal, malpractice tail coverage if you ever close the practice, a document-destruction service, EHR and e-prescribing fees, a clinical-supervision stipend if you're building hours, and depreciation or a Section 179 write-off on equipment you buy outright all belong in the annual plan, not as a surprise mid-year 2Ref 2Internal Revenue Service (2026).Publication 946, How To Depreciate Property.Depreciation and the Section 179 expensing election for equipment purchased outright, as a budget line item easy to forget in the first year..

A clean bookkeeping system that codes each expense the same way every month is what turns this list into a number you can trust by December, rather than a shoebox you sort out in April.

Reserve for taxes before you spend the rest

Self-employment tax and income tax are both due on a schedule your budget has to anticipate, not react to. As a solo owner filing Schedule C, you owe self-employment tax—15.3% on net earnings up to the Social Security wage base, Medicare-only above it—on top of ordinary income tax 3Ref 3Internal Revenue Service (2026).Self-employed individuals tax center.The 15.3% self-employment tax rate on net earnings up to the Social Security wage base (Medicare-only above it), on top of ordinary income tax., and the IRS expects the total paid in quarterly installments rather than one payment in April 4Ref 4Internal Revenue Service (2026).Estimated taxes.That estimated tax is expected in quarterly installments rather than a single annual payment, which the tax-reserve line item has to anticipate..

Set a fixed percentage of every deposit aside in a separate account the same day it clears, before you touch it for anything else. The right percentage is yours to calculate with a preparer since it depends on your bracket and state, but treat the reserve account as an untouchable operating cost, not a balance you can borrow from mid-year.

Sanity-check your draw against the field

Once you've built the plan, check whether the resulting draw is realistic for your training and region, not just for your practice's cash flow. Government wage tables exist for most behavioral-health licenses—published percentiles for clinical and counseling psychologists among them 5Ref 5U.S. Bureau of Labor Statistics (2025).Occupational Employment and Wages: Clinical and Counseling Psychologists.Published wage percentiles for clinical and counseling psychologists, used as a sanity check on whether a budgeted owner draw is realistic for the field.—and are a faster sanity check than guessing whether your number is low, average, or high for the field.

If your budgeted draw sits well below what employed peers in your state report, the gap is either a pricing problem, a capacity problem, or a margin you're leaving on the table—not something the budget itself can fix, but something an honest one will surface.

Fund retirement inside the budget, not after it

A retirement contribution that only happens if money is left over at year-end rarely happens at all. Building it into the annual plan as a line item—monthly or quarterly, sized to what a solo 401(k) allows for a business owner with no employees—turns it into a bill you pay yourself rather than an aspiration 6Ref 6Internal Revenue Service (2026).One-participant 401(k) plans.That a solo 401(k) covers a business owner with no employees, permitting a budgeted contribution sized to the annual limits..

Even a modest, consistent contribution compounds differently than an irregular one, and the deduction itself lowers the net income your tax reserve is calculated against, so the two line items work together rather than competing for the same dollar.

What to revisit monthly versus once a year

An annual budget is a starting position, not a document you file away until next January. Reading the p&l in ten minutes each month tells you whether you're tracking to the plan or drifting from it, and the solo dashboard turns that read into five numbers worth watching between full reviews.

Reserve the full afternoon treatment for once a year: recompute margin at solo scale against the prior year, refile whatever the annual report requires for your entity, and if it's been a while since you asked patients directly, a short read like cahps-lite costs almost nothing to run and belongs in the same sitting as the numbers.