Patients keep asking whether your clinic opens on Sundays. Weekday evenings are busy, Saturday appointments fill quickly, and some patients struggle to attend during working hours. Opening another day seems like a practical way to improve access and grow the business.
However, a busy Sunday diary does not automatically mean the clinic earns more overall. Some patients may simply move appointments from weekdays. Additional staffing and operating costs may absorb much of the new revenue, while changes to the weekly roster could reduce capacity elsewhere.
Before extending your opening hours, assess what would change across the whole clinic. The decision should account for additional demand, the cost of delivering the sessions and whether the new schedule can operate consistently. A clear financial review helps management decide whether to open every Sunday, begin with selected sessions or improve existing hours first.
Establish Why Patients Want Sunday Appointments
Start by understanding the demand behind the requests. A patient who would otherwise visit another clinic represents a different opportunity from an existing patient who prefers Sunday but would still attend on Tuesday.
Keep a simple record of requests over several weeks. Note whether the patient is new or existing, which appointment times were unavailable and whether an alternative booking was accepted. This provides more useful evidence than relying on the number of times reception remembers being asked.
Look at your current waiting periods and unused slots as well. If Saturday is consistently full but weekday afternoons are quiet, Sunday opening may improve convenience without necessarily creating a similar increase in total appointments.
Patient feedback helps identify interest, but interest is not the same as attendance. Use it to build an initial forecast, then test that forecast against actual bookings and completed appointments.
Separate Additional Visits From Shifted Appointments
An appointment recorded on Sunday may have been earned by the clinic anyway. If a patient moves an existing weekday booking, the Sunday revenue is visible, but the corresponding reduction elsewhere can be overlooked.
Track rescheduled appointments during any trial. Identify which Sunday bookings replace visits already in the diary and whether their original slots are subsequently filled. This helps establish whether the extra opening hours create additional activity or redistribute it.
For example, moving four patients from Wednesday to Sunday creates no additional visits if Wednesday remains empty. If four other patients then take those Wednesday slots, the clinic may have increased its overall activity. The full weekly result matters.
Some benefits may emerge gradually, such as retaining patients who find the new hours more convenient. Those benefits can be considered, but they should remain separate from immediately observed additional revenue until there is evidence to support them.
Identify the Costs That Change When You Open
The relevant starting point is the extra cost of Sunday operation. Existing rent may remain unchanged, while additional staffing, cleaning, utilities and clinical supplies may increase.
List each required role and the actual proposed payment arrangement. Include the dentist, clinical support and reception or administrative coverage needed for the session. Where employer contributions or other employment costs apply, include them in the payroll estimate.
Avoid assuming that Sunday work carries one standard premium. The cost depends on the staff arrangements and applicable requirements. Obtain accurate payroll input for the proposed roster rather than using an informal percentage.
Also check the premises arrangements. Additional building access, air-conditioning or security services may need to be arranged. Small costs can become material when repeated every week, so confirm them before deciding that the clinic only needs to cover the dentist’s session fee.
Use a Contribution Calculation That Matches the Roster
Consider a simplified hypothetical Sunday session. Assume the clinic incurs S$900 in additional session costs, covering the agreed dentist session payment, support staff and other opening costs. These costs arise even if some appointment slots remain empty.
Suppose the average net revenue per completed appointment is S$180. Appointment-specific materials, laboratory charges where relevant and payment fees average S$45. Each appointment therefore contributes S$135 towards the S$900 session cost.
At six completed appointments, the contribution is S$810, leaving a S$90 shortfall. Seven appointments produce S$945, leaving S$45. Ten produce S$1,350, leaving S$450 before other excluded effects.
This example assumes that the dentist is paid through the fixed session amount and that all appointments are additional to the clinic. It excludes tax, setup spending and any reduction in weekday contribution. The figures are illustrative rather than market rates.
If your dentist is paid a percentage of collections instead, the calculation must reflect that arrangement. Do not include the same remuneration in both the session cost and the appointment-specific cost unless both payments actually apply.
Account for the Effect on the Rest of the Week
The S$450 in the example is not necessarily the clinic’s total improvement. If Sunday appointments displace profitable weekday work, that effect must also be included.
Suppose four of the ten appointments would otherwise have occurred during existing hours. Assume each would have generated S$135 of contribution, the old slots remain unfilled and existing session costs cannot be reduced. The lost weekday contribution is S$540.
Against the S$450 Sunday result, the overall change is a S$90 reduction. The Sunday diary looks productive, yet the clinic is financially worse off under these assumptions.
The result changes if the freed slots are filled, weekday costs fall or the Sunday service brings other measurable benefits. The purpose is to identify those effects explicitly. Reviewing Sunday in isolation can produce a misleading conclusion about the value of opening.
Forecast the Appointment Mix Realistically
An average appointment value is useful for an initial calculation, but it can conceal differences in treatment time and direct costs. Ten short appointments and ten lengthy appointments may require very different capacity.
Build the forecast around a plausible mix based on patient needs and the services the clinic can appropriately provide during the session. Include time for preparation, cleaning, documentation and unexpected delays. A fully booked diary is not achievable if the schedule ignores these activities.
Review contribution per session and per available clinical hour where helpful. These measures can explain why a high-billing session still leaves limited contribution after costs. They should support resource planning without allowing financial targets to override clinical judgment.
Avoid relying on unusually high-value procedures to make the plan work. If Sunday viability depends on a treatment mix that rarely occurs, the forecast needs a more cautious base case.
Consider the Staff Roster Across the Entire Week
Opening on Sunday may require more than adding one shift. Employees may need different schedules, and the owner or practice manager may need to provide additional supervision.
Assess whether the change removes capacity elsewhere. A clinician working Sunday but reducing another session may improve patient access without expanding total available hours. That can still be worthwhile, but it should be described accurately in the financial case.
Discuss whether the arrangement is sustainable for the team. A schedule that depends on the same people continually accepting extra work may become difficult to maintain. Recruitment or replacement costs could arise if the initial arrangement does not last.
Keep the owner’s time visible too. An owner-dentist may not make an extra salary payment for Sunday work, but that does not make the personal commitment costless. Consider whether the return justifies the time and what other responsibilities must be covered.
Allow for Cancellations and Incomplete Bookings
The break-even calculation concerns completed, chargeable appointments rather than enquiries or reservations. A Sunday with seven bookings may fall below the required level if two patients cancel and the spaces remain empty.
Use the clinic’s actual booking experience to estimate attendance. Where Sunday data is unavailable, state the assumption and review it during the trial. Do not assume the new session will immediately achieve the attendance rate of an established, popular time slot.
Consider how reception will manage confirmations and short-notice availability. An organised process may help fill cancelled slots, but any additional administrative work should be reflected in the operating plan.
Avoid overbooking simply to make the financial forecast appear stronger. Appointment capacity should remain consistent with appropriate care and a workable schedule. The financial model needs to fit the service the clinic can reliably deliver.
Keep Cash Collection Separate From Appointment Revenue
Completed appointments do not always translate into cash received that day. Where third-party payment arrangements apply, there may be a delay between treatment, submission and collection.
Prepare a short cash forecast reflecting the actual collection pattern. Staff payments and supplier charges may fall due before the clinic receives all the amounts associated with the new sessions.
Patient payments also need to be interpreted carefully. A collection may relate partly to earlier work, while a payment for a future treatment does not necessarily represent the current session’s revenue. Keep the records connected to the relevant services.
For the trial, report completed activity, the revenue associated with it and cash collected as separate measures. That makes it easier to see whether a funding gap arises even when the sessions appear profitable.
Compare Sunday Opening With Other Ways to Meet Demand
Sunday opening is one possible response to patient requests. Depending on the current diary, an additional evening session, better use of Saturday hours or improved booking management may address some of the same demand.
Compare realistic alternatives using the same approach. Estimate additional appointments, staffing costs and effects on existing sessions. Include any setup costs or practical constraints rather than assuming a different option will automatically be cheaper.
The patient groups served may differ. An evening session may suit some working patients, while Sunday is the only convenient option for others. Use actual requests to assess that distinction.
The aim is to identify a schedule that improves access and produces an acceptable financial outcome. A trial can help clarify which option works for the clinic’s patients and team.
Design a Trial With a Clear Review Point
Before committing to permanent Sunday hours, consider a defined trial with an agreed session length, staffing arrangement and review date. Make sure the practical arrangements and patient communications support the plan.
Set out what management wants to learn. Relevant measures include completed appointments, genuinely additional visits, contribution after extra costs and the effect on weekday utilisation. Record patient feedback and operational problems alongside the financial results.
Allow for the cost of introducing the new hours. Booking-system changes, communications and initial promotion should be identified separately from recurring session costs. This helps distinguish startup spending from the ongoing cost of opening.
Agree how management will respond if demand is weaker than expected. Options might include fewer Sundays or a shorter session, subject to staffing arrangements and patient needs. The review should lead to a decision rather than allowing an inconclusive trial to continue indefinitely.
Use Clinic-Wide Results to Decide Whether to Continue
At the end of the trial, compare the clinic’s overall performance with a reasonable baseline. Consider holidays, seasonal changes and other developments that could affect the comparison. One unusually busy Sunday is not enough to establish a sustainable pattern.
Review whether the assumptions proved accurate. Did the appointments come from new demand? Were vacated weekday slots filled? Did staffing costs match the plan? Did the opening hours require additional work that was not budgeted?
Kazuma provides bookkeeping, payroll services and periodic financial reporting. Reliable records can give clinic owners a clearer basis for comparing session income, employment costs and the broader effect of a revised operating schedule.
Sunday opening may help your clinic serve patients who cannot attend during the week. Its financial case is strongest when the additional contribution covers the extra commitments and the roster remains workable. Assessing the whole week gives you a better basis for deciding whether the new hours deserve a permanent place in the schedule.