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Medical invoice template: what it is
An invoice is the request for payment you send after supplying goods or services. It records what was supplied, at what price and tax, and when payment is due. Self-pay patient bill that doubles as a superbill.
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Example: a filled medical invoice
- The title says what the document is: an invoice.
- A unique number from a continuous series, allocated when you issue it.
- Your business name and address, and tax number if registered.
- Who it is for.
- Each line: description, quantity, rate and amount.
- Tax by rate.
- The total in the document's currency and format.
Worked example: the numbers behind the invoice above
| Item | Qty | Rate | Amount | Tax |
|---|---|---|---|---|
| 11 Sep: diagnostic evaluation (CPT 90791), office (POS 11) | 1 | $220.00 | $220.00 | $0.00 |
| 18 Sep, 25 Sep, 2 Oct: psychotherapy, 53+ minutes (CPT 90837), telehealth (POS 10) | 3 | $180.00 | $540.00 | $0.00 |
| Subtotal | $760.00 | $0.00 | ||
| Total | $760.00 | |||
No tax is charged on these lines, so the total equals the value of the supply.
How to fill in the medical invoice
- Enter the practice name, address, NPI and tax ID.
- Add the patient and their billing address.
- List each service by date with its CPT code and fee.
- Add diagnosis codes and the place of service, then save and issue.
Fields a superbill needs
| Field | Example |
|---|---|
| Provider and practice | Name, credentials, address, phone |
| NPI | Individual NPI, and the group NPI if used |
| Tax ID | Practice EIN |
| Patient | Name, date of birth, address |
| Date of service | One line per visit |
| Place of service | Office (11), or telehealth (02 or 10) |
| Procedure | CPT code, such as 90837 for psychotherapy of 53 minutes or more |
| Diagnosis | ICD-10 code |
| Fee and amount paid | Charge per line, and payments received |
Getting paid by self-pay patients
Many practices take payment at each visit and hand over the superbill as a paid statement. Others invoice monthly, as in the example. Either way, record each payment against the invoice so the balance is right if the patient questions it or their insurer asks for proof of payment.
What to put on an invoice, field by field
| Field | What to enter |
|---|---|
| Document title | Say exactly what it is: "Invoice". The title tells the buyer and the tax authority how to treat it. |
| Number and date | A unique number in a continuous series and the issue date. LuckPanda allocates the number when you issue. |
| Your business | Name, address, and tax ID if your state or client needs it |
| Customer | Name, address, and tax ID if your state or client needs it |
| Lines | Description, quantity, unit and rate. Each line carries its own tax rate. |
| Tax | Sales tax where you must collect it, at the rate for the delivery address. |
| Totals | Taxable value, tax by component and the total, in the document currency. Amounts in words are customary in India. |
| Terms | Due date, bank or payment details and late-payment terms. |
United States rules for an invoice
- There is no federal invoice format. Include what your client's accounts payable needs to pay: your legal name, invoice number and date, what was supplied, amounts, due date and payment instructions.
- Sales tax is set by each state. Charge it only where you have nexus (a physical presence or, since 2018, economic nexus by sales volume) and the item is taxable; most services are exempt in many states.
- A business that pays a contractor $2,000 or more in a year (the threshold rose from $600 for payments made from 2026) reports it on Form 1099-NEC, so expect your client to ask for a W-9.
Mistakes to avoid
- Editing or deleting an issued invoice instead of issuing a credit note.
- Gaps or duplicates in the number series.
- Charging the wrong tax type (for India: IGST on an intra-state sale, or CGST and SGST across states).
- Leaving out the due date and payment details, which is the commonest reason invoices are paid late.
- Rounding each line's tax differently from the total; LuckPanda computes tax per line and keeps the components adding up.
Invoice vs other sales documents
| Document | When | Asks for payment | Tax document | In the books |
|---|---|---|---|---|
| Quotation / estimate | Before the order | No | No | No |
| Proforma invoice | After the order, before supply | Advance only | No | No |
| Invoice / tax invoice | On supply | Yes | Yes | Yes: sale and receivable |
| Receipt | When paid | No, confirms payment | No (receipt voucher for advances in India) | Yes: payment |
| Credit note | After an invoice, to reduce it | No, reduces what is owed | Yes | Yes: reverses part of the sale |
Questions people ask
What is a superbill?
An itemised statement a provider gives a patient who pays directly, so the patient can claim out-of-network reimbursement from their insurer. Insurers look for the provider's NPI and tax ID, dates of service, CPT procedure codes, ICD-10 diagnosis codes, fees and proof of payment.
Do I need to give self-pay patients a Good Faith Estimate?
Under the No Surprises Act, providers must give uninsured and self-pay patients a Good Faith Estimate of expected charges for scheduled services. If the final bill is at least $400 above the estimate, the patient can dispute it.
What patient information should the invoice include?
Only what is needed to bill: the patient's name and address, dates, services and, for a superbill, diagnosis codes. Send it through a channel the patient has agreed to, and keep it with their records.
Is sales tax charged on medical services?
Professional medical services are generally exempt from sales tax. A few states tax cosmetic procedures, and products sold in a practice can be taxable.