Invoice Template
An invoice is an itemized written request for payment that details delivered goods or services, costs, and due dates, so get your invoice template to streamline billing and speed up client payments.
- Works for any trade or industry
- Automatic tax & total calculations
- One-time, recurring & final invoice types

- 8
- Steps
- 50
- States Covered
- 2026
- Updated
Summary
- An invoice is a written payment request that also serves as a record of the sale.
- A complete invoice lists both parties, a unique number, itemized charges, a due date, and terms.
- If a client doesn't pay, reminders, records, and small claims court may help you collect.
You finished the job, and now it's time to get paid. The document you send next can speed that payment along or leave it stuck in someone's inbox for weeks. Here's how to put together a bill that clients understand and act on.
What Is an Invoice?
An invoice is a written request for payment that a seller sends to a buyer after providing goods or services. It lists what was delivered, what it cost, and when payment is due. Freelancers, contractors, consultants, and small businesses all rely on them to bill their customers.
An invoice also works as a record. Sales paperwork like this is part of the supporting business documents the IRS expects businesses to keep. It also shows what both sides agreed to, which helps with bookkeeping, taxes, and any disagreement down the road. Using an invoice template keeps every bill in the same format, so nothing important slips through the cracks.
Invoice vs. Estimate vs. Receipt
These three documents are easy to mix up, but each one does a different job:
- Estimate – an expected price given before work starts. It isn't a bill.
- Invoice – a request for payment for work or goods already provided, with a due date.
- Receipt – proof that the client has already paid.
A single job may involve all three. A contractor might send an estimate, bill with an invoice once the project wraps up, and then issue a receipt when the client pays.
What to Include on an Invoice
A complete invoice answers every question the client might have before they pay. Most include:
- The word "Invoice" at the top so it's clearly a bill
- Your name or business name, address, and contact details
- The client's name and billing information
- A unique invoice number
- The issue date and the payment due date
- An itemized list of goods or services with quantities, rates, and line totals
- The subtotal, plus any taxes, discounts, or deposits already paid
- The total amount due
- Payment terms and accepted payment methods
- Notes, such as a late fee policy or the client's purchase order number
Sales tax rules differ by state and by what you sell, so check your state's requirements before adding tax to an invoice.
How to Fill Out an Invoice
Start by saving a clean master copy of the template, then make a new copy for each bill. Fill in your details and the client's, and make sure the billing name and address match what the client has on file. Larger companies may hold or return invoices that don't match their records.
Next, give the invoice its own number. A simple sequence works well and makes tracking unpaid bills much easier. Add the issue date and a specific due date rather than only a phrase like "Net 30," which means payment is due 30 days after the invoice date.
Then list each item on its own line. Vague labels like "services" invite questions, while a short description with hours and a rate usually gets approved faster. Double-check the math, add your payment instructions, and save a copy before you send it.
When to Send an Invoice
Timing depends on the kind of work. Businesses that sell products often send the invoice at the time of sale. Service providers usually bill when the job is done. For longer projects, many people bill part of the cost up front and the rest at completion, or send invoices on a regular schedule, such as every two weeks or once a month.
Whatever schedule you pick, agree on it with the client before work starts. Each invoice should also show how much has already been paid.
Choosing a Format
Templates come in several formats, and the right one depends on how you work. Word and Google Docs give you control over layout and branding. Excel and Google Sheets can add up line items and taxes for you with built-in formulas. PDF is a good choice for sending, since the layout looks the same on any device and is harder to change by accident.
If you send a lot of invoices each month, invoicing software may save time by tracking payments and sending reminders automatically.
What to Do if a Client Doesn't Pay
Late payments happen, even with a clear invoice. A polite reminder shortly after the due date often solves the problem. If it doesn't, a firmer follow-up that restates the amount, the due date, and the original terms may help.
Keep copies of every invoice, message, and payment record, and check the IRS guidance on how long to keep records. An invoice on its own isn't always a binding contract, but together with a signed service agreement, emails, or proof of delivery, it can help show what the client owes. Late fees are generally easier to collect when the client agreed to them in advance, and limits on these fees vary by state.
If the debt stays unpaid, options may include a demand letter, a payment plan, or small claims court. Rules and dollar limits for small claims vary by state, so it may be a good idea to check your local court's guidelines or talk with an attorney.
Get Paid With Less Hassle
A clear, consistent bill protects both your time and your income. Billing for a different kind of job or a recurring client? Browse ConsumerShield's other invoice templates to find the right format.
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Frequently Asked Questions
Everything you need to know about our invoice template
An invoice asks the client to pay for goods or services and lists a due date. A receipt comes after payment and serves as proof that the client has already paid.
Net 30 means the client has 30 days from the invoice date to pay. Many businesses also list a specific due date so there's no confusion about the deadline.
It depends. Sales tax rules vary by state and by what you sell, so it's a good idea to check your state's requirements before adding tax to an invoice.
Late fees are generally easier to collect when the client agreed to them in advance, such as in your payment terms or a signed agreement. Limits on these fees vary by state.
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- Unlimited legal-form generation
- Unlimited guide unlocks across every state
- Complete legal kits included with membership
- Completed PDFs stay in your library
- Cancel any time