Customer location, filing thresholds, and delivery rules can change whether tax is due at all. Confirm the trigger before copying a total into the quote.
Nexus is a collection question, not just a rate question. Before you quote out-of-state work, separate where the work happens, where the customer is, and whether you have a current duty to collect or remit tax.
A low-ticket card invoice can lose more to fees than the work earns. Compare the processor fee, margin, and invoice size before requiring a minimum payment.
A payment minimum is a pricing rule, not just a processor preference. Before you set one, compare fee drag, job margin, and the smallest invoice you expect to send so the rule still works for small orders, deposits, and repeat customers.
A card dispute can claw back the payment, fees, and time you already spent. Rebuild the invoice before you decide whether to refund or contest it.
A chargeback is a cash-flow event, not just a support email. Before replying, match the invoice, payout, processor fee, refund history, and proof of delivery so you know the real loss and can choose the next step.
Card and platform fees may not come back when a job is canceled. Check the fee, tax, and cancellation terms before promising a full refund.
A canceled deposit should be treated as a mix of collected cash, processor fees, earned work, and cancellation terms. Before returning money, estimate the fee you will not recover, decide whether any part of the deposit was earned, and write the result into the invoice or quote so the refund or credit matches the actual balance.
A monthly support plan can look simple, but standby time, admin, and unused-hour rules still need a rate floor. Check the math before quoting it.
A support plan should be priced from capacity, not only from the hours the client expects to use. Before quoting a monthly amount, estimate billable work, standby time, admin follow-up, payment fees, and unused-hour terms so the plan still clears your hourly floor.
Drive time, parking, tolls, setup, and waiting can turn a short visit into a real cost. Decide how you charge for travel before you send the quote.
On-site work should include the trip, not only the task. Before quoting the job, decide whether travel is a billable hour, zone fee, minimum service charge, or reimbursable expense, then check the result against your rate floor and margin.