First Invoice Checklist for New Freelancers

Sending your first invoice is a milestone. It means you've done the work and now you need to get paid for it. If you've never invoiced before, the process can feel intimidating, but it's simpler than it looks. This guide walks you through creating and sending your first invoice, step by step.

Before you send your first invoice

Before you create the invoice, make sure you have these basics sorted:

Agree on payment terms upfront. Before you start work (or at least before you finish), confirm with the client: how much, when payment is due and how they will pay. Having this agreed in writing, even in a simple email, prevents disputes later.

Set up a way to get paid. Make it easy for clients to pay you. A separate bank account for business income keeps your records clean, and you can add online payment through a provider such as Stripe or PayPal.

Choose an invoice numbering system. Start with something simple like INV-0001 and go up from there. See invoice number formats for other patterns, or try the invoice number generator.

Know your tax obligations. Depending on your location, what you sell and your turnover, you may need to charge sales tax, VAT or GST. If you're unsure, ask your tax authority or an accountant before sending your first invoice; it's much easier to set up correctly from the start than to fix later.

Creating your first invoice: step by step

Step 1: Add your business details

At the top of your invoice, include:

• Your full name or business name
• Your address
• Email and phone number
• Your tax registration number, if you have one and your tax rules require it on invoices (for example a UK VAT number once you are VAT-registered)

Step 2: Add client details

Below your information, add:

• Client's name or company name
• Client's billing address
• Client's email (for delivery)

Step 3: Add invoice details

• Invoice number: INV-0001 (your first one)
• Invoice date: today's date
• Due date: based on your agreed payment terms (for example 14 days from today)

Step 4: Describe what you did

List each service or product as a separate line item:

Be specific. "Web design services" is vague. "Homepage and about page design with mobile responsive implementation" tells the client exactly what they're paying for.

Step 5: Calculate the total

• Subtotal: $1,500 + $500 + (8 × $100) = $2,800
• Tax: $0 in this example (services like this are often not subject to sales tax, but that depends on your state or country)
• Total due: $2,800

Step 6: Add payment instructions

Tell the client how to pay:

• Bank account details for a transfer
• Your PayPal email, or a payment link if you use one
• Who to contact with payment questions

Step 7: Add your terms

A brief note at the bottom:

• Payment due within 14 days
• Any late fee you agreed in your contract, if the law where you work allows it (see late fee laws by state)
• Thank you for your business

For the full list of fields, see what to include on an invoice.

Sending your invoice

Email is standard. Attach the invoice as a PDF and write a brief, professional email:

Hi [Client Name],

Thank you for the opportunity to work on [project]. Please find the invoice attached for the agreed amount of $2,800.

Payment is due by [due date]. If you have any questions, I'm happy to help.

Best regards, [Your Name]

Include a payment link if you can. It saves the client from copying bank details. More templates are in how to send an invoice by email.

What happens after you send it

• Track it. Note that the invoice was sent and when payment is due.
• Follow up if needed. If payment hasn't arrived by the due date, send a polite reminder. The free payment reminder templates give you a gentle, firm and final version to adapt.
• Record the payment. When you receive payment, mark the invoice as paid in your records.

The faster way: draft it in InvoiceQuickly

If formatting an invoice feels like too much work, InvoiceQuickly can draft it for you. Type or say something like "Invoice Alex at StreamLine Co, $2,800 for website design, due in 14 days", then review the client, dates, line items and totals before you save and download the PDF.

The Free plan includes 5 invoices, 5 clients and 3 AI drafts, with no card required. Emailing invoices from InvoiceQuickly, reminders and payment links are on Pro ($9/month). Create your first invoice now.

Common first-time mistakes

• Waiting too long to invoice. Send it the day you finish the work.
• Being too vague. Itemize everything so the client knows what they're paying for.
• Forgetting tax. If you need to charge it, include it from day one.
• Not following up. A late payment doesn't mean the client is dishonest; they may have simply forgotten. A polite reminder is the first step.

Your first invoice sets the tone for the business relationship. Make it clear, professional and easy to pay.

How to choose your invoice format the first time

If you've never sent an invoice before, the format matters less than three other decisions: what currency you'll bill in, how you'll get paid, and what your default payment terms will be.

Currency: bill in your home currency unless you and the client agree otherwise. If you bill a client abroad in your currency, they bear the conversion; if you bill in theirs, you do. Agree which before you send.

Payment method: offering a bank transfer plus a card payment link covers most clients. Bank transfers are usually cheaper for both sides; card payments are convenient for the client, but the payment provider takes a fee from each payment, so check its pricing page before you set your rates.

Default terms: pick terms you can live with and state them on every invoice. Net 14 or Net 7 suits small invoices to individuals and small businesses; larger companies often set their own terms, such as Net 30 or Net 60, in their supplier agreements. See invoice payment terms for the options.

Five details to get right on invoice #1

Your business name and taxpayer details

Sole proprietors usually invoice under their own legal name or a registered trade name (DBA). In the US, use the same name and taxpayer identification number you give the client on Form W-9, so that any Form 1099-NEC they file at year end matches your records. For payments in tax years beginning after 2025, the 1099-NEC filing threshold is $2,000.

Sequential invoice numbers from the start

Give every invoice a unique number and never reuse one. UK and EU VAT invoices must carry a sequential number; US federal tax law sets no numbering rule, but a simple sequence (INV-0001, INV-0002) or a year prefix (2026-0001) makes invoices easy to find and match. See invoice numbering systems.

Itemize the work, even if it feels redundant

"Web design: $2,500" is weak. "Brand identity package: logo (3 variants), color palette, typography system, brand guidelines document: $2,500" is better. Itemizing makes the invoice easier for the client to approve and harder to dispute.

Payment instructions, not just an amount due

Give bank transfer details (account name, account and routing number or IBAN, SWIFT/BIC for international payments), a payment link if you have one, and a clear due date. "Send it to my Venmo" leaves too much unsaid.

A follow-up plan

Decide before you send when you will follow up: for example a friendly note a few days after the due date and a firmer one two weeks later. New clients have no habit of paying you yet, so a reminder is normal. For wording, see effective payment reminder emails.

Common first-invoice scenarios

Side hustle going formal: you've been doing informal work for a friend's company and are sending your first real invoice. Use a real invoice number, your full legal name, and a payment method that leaves a record, such as a bank transfer or a payment link.

Corporate client, first project: get their accounts payable email address upfront, include a purchase order number if they provide one, expect their standard terms, and, if you're US-based, be ready to send a Form W-9 when they ask.

International client (US freelancer billing a UK company): agree upfront whether you bill in USD or GBP and who pays bank and conversion fees. Include your full address. Whether US sales tax or UK VAT applies depends on the service and where it is supplied, so check with your state revenue department or an adviser.

Recurring monthly retainer: invoice at the start of each month, before the work, with payment due on receipt. It makes your cash flow far easier to predict.

Frequently asked questions

Do I need a tax ID to invoice?

In the US, sole proprietors can use their Social Security number, but an EIN keeps your SSN off client paperwork, and the IRS issues EINs free (IRS: Get an EIN). In the UK you must register for VAT when your taxable turnover goes over £90,000 in a rolling 12 months (GOV.UK: When to register for VAT); once registered, your VAT number goes on your VAT invoices. Other countries have their own thresholds.

What's the minimum content of a legal invoice?

It depends on the country. Good practice everywhere is your details, the client's details, a unique invoice number, the date, a description with quantities and rates, the total and the payment terms. UK invoices must also show the supply date, and VAT-registered sellers in the UK and EU must add VAT details. See what to include on an invoice for the sourced lists. This is general information, not legal or tax advice.

Should I add late fees on my first invoice?

Only if you agreed them with the client and the law where you work allows them. A vague "late fees may apply" is hard to enforce; a specific term in your contract, repeated on the invoice, is clearer. In the UK, business-to-business debts can carry statutory interest at 8% plus the Bank of England base rate, 11.75% for July to December 2026, unless your contract sets a different rate. US rules vary by state: see late fee laws by state and the late fee glossary entry.

What format should I send invoices in?

PDF. It looks the same on every device and is harder to edit by accident than a Word file. Put the key details (amount, due date, how to pay) in the email body too.

Should I use accounting software for my first invoice?

A free template is fine for your first few invoices. Software starts to help once you have several clients, because it numbers invoices, tracks what is unpaid and keeps your records in one place.