Invoice Template: What Belongs on One, and a Free Copy-Paste Version

Most invoice templates you will find are a layout problem solved and a content problem ignored. They look tidy, and then you discover that there is nowhere to put the purchase order number, no supply date, and a tax line pre-filled with a rate you are not registered to charge.

This page gives you a template you can copy and use immediately, then explains what every field is actually for — because the fields are what determine whether you get paid in three weeks or eleven.

The template#

Three blocks. Copy them into a word processor or spreadsheet and replace everything in brackets. Between them they contain every field an ordinary invoice needs and nothing it does not.

1. The header#

INVOICE

[Your name or business name]
[Street address]
[City, state/county, postcode]
[email]  ·  [phone]
[Tax number — VAT reg. no. or EIN, if you have one]
[Company registration number and registered office, if incorporated]

BILL TO
[Client's legal entity name]
[Billing address]
[Attn: contact name or department]
[PO number: ___________ if one was issued]

Invoice number:   INV-2026-001
Invoice date:     3 September 2026
Supply date:      29 August 2026
Payment due:      3 October 2026   (Net 30)

2. The line items#

Build this as a table. In a spreadsheet the Amount column is a formula — =B2*C2 — which is the main reason to use one.

3. Payment details and terms#

PAYMENT DETAILS
Bank:              [Bank name]
Account name:      [Exactly as it appears on the account]
Sort code:         [00-00-00]
Account number:    [12345678]
Routing number:    [for US ACH]
IBAN / SWIFT:      [for international payments]
Payment reference: INV-2026-001

TERMS
Payment is due within 30 days of the invoice date.
[UK: Statutory interest and fixed recovery costs under the Late
Payment of Commercial Debts (Interest) Act 1998 apply to overdue
amounts.]
[US: A late fee of 1.5% per month applies to overdue balances, as
agreed in our contract dated ____.]

NOTES
Thank you for your business.

Two things about this worth stating plainly.

It is not beautiful. It contains everything required, which is what determines payment. Design matters far less here than people assume — a plain invoice with correct entity names and a purchase order number is approved faster than a beautifully typeset one that a finance clerk has to ask questions about.

And the bracketed lines are decisions, not blanks. The tax line, the late-fee wording and the payment rails all depend on your situation. The rest of this guide is how to make those decisions.

Every field, and why it earns its place#

The word "Invoice"#

It has to appear. This is a legal requirement in the UK and a practical one everywhere. A document headed "Statement", "Summary" or "Recap" is not an invoice, and in a payment dispute that distinction is real.

Your details#

Use the name you actually contract under. If a contract was signed as "Ada Lovelace Design Ltd", the invoice says that — not "Ada Lovelace Design", and not "Ada's Studio". Accounts-payable systems match invoices against vendor records, and a name mismatch does not cause a rejection. It causes silence while someone works out whether you are a supplier they recognise.

Include a physical address, not just an email. Some vendor-onboarding systems will not create a record without one. In the UK, a sole trader trading under a business name is legally required to give an address where legal documents can be delivered.

Add a tax number if you have one. UK VAT number if registered — at which point the document becomes a VAT invoice with extra mandatory fields. In the US, a tax ID on the invoice is optional; the mechanism there is Form W-9.

Client details#

The legal entity, not the brand. Large organisations often have a trading name, a registered name and several subsidiaries sharing a logo. Payment is processed against the registered entity.

The billing address, which is frequently not the office you have been dealing with.

The purchase order number, if one was issued. This is the most consequential optional-looking field on the template. In any organisation with a procurement function, an invoice without the matching PO number is not rejected — it fails to match, and nobody tells you. If a PO was mentioned at any point, put the number on the invoice.

Invoice number#

Unique, sequential, never reused. INV-2026-001 sorts correctly, shows the year, and makes a gap visible.

Void an invoice and the next one takes the following number. A gap is fine and explainable. A duplicate makes your records impossible to reconcile, which matters at year end and matters far more if anyone ever audits you.

Three dates, not one#

Invoice date — when you issued it. Terms count from here.

Supply date — when the work was delivered or the goods supplied. Legally required on UK invoices and useful everywhere.

Due date — as an actual calendar date, not only as "Net 30".

That last one is worth more than it looks. "Net 30" invites a question: thirty days from when? Calendar or business days? From the invoice date, or from when their system logged it? Over a month those readings differ by a fortnight. "Due 3 October 2026" cannot be misread.

Description#

Where most templates leave you a one-line box, and where most invoices are weakest.

The person approving your invoice is often not the person who hired you. They were not in your meetings, cannot verify what was agreed, and work to a policy that says do not approve what you cannot check.

Design work — $4,000

versus

Homepage redesign — three initial concepts, two rounds of revision, final assets delivered 29 August 2026. Per statement of work dated 3 July 2026. — $4,000

The second gets approved by a stranger. Give your template three or four description lines rather than one, and use them.

Quantity, rate, amount#

Keep the arithmetic reproducible in the reader's head: quantity times rate equals amount, amounts sum to the subtotal, two decimals throughout.

State the currency. A bare "$" is ambiguous the moment you have a Canadian or Australian client. Write USD, GBP, CAD.

This is the strongest argument for building your template in a spreadsheet rather than a word processor. At eleven at night on the fourth invoice of the evening, a hand-totalled column will eventually be wrong — and a wrong total means a credit note, a reissue and a conversation.

Tax#

The field most often filled in wrongly, and the consequences land on you rather than your client.

Only include a tax line if you are registered to charge that tax. Many circulating templates ship with a VAT or sales tax row already in place at a default rate. Delete it if it does not apply. Collecting tax you are not registered to remit is a serious problem, not a rounding error.

Details for each jurisdiction are below.

Total due#

One number, unmistakably the largest on the page.

If a deposit was already paid, deduct it and label the final figure "Balance due" rather than "Total". An invoice reading "Total: $4,000" when only $2,000 is outstanding gets paid twice or not at all.

Payment details#

An invoice with no payment route is an expensive reminder email waiting to happen. Bank name, account name, account number and sort code or routing number; IBAN and SWIFT for international; the exact payee name if they pay by cheque; a working link if they pay by card.

Ask them to quote the invoice number as the reference. Unreferenced transfers become a real reconciliation problem once you have more than a handful of clients.

Terms#

State them in words, and state the consequence of missing them. What that consequence can be differs by country — see below.

US and UK requirements compared#

The same template works for both. What changes is which fields are compulsory.

Two entries deserve expansion.

UK VAT invoices are a different document with their own mandatory fields: your VAT number, the tax point, the rate of VAT on each line, the total excluding VAT, the VAT total in sterling, and the total including VAT. If you are VAT-registered, your template needs those rows.

UK statutory late payment. Under the Late Payment of Commercial Debts (Interest) Act 1998 you have an automatic right to interest at 8% above the Bank of England base rate on overdue commercial debts, plus a fixed sum for recovery costs of £40, £70 or £100 depending on the size of the debt. You do not need this in your contract — the right exists unless the contract provides a substantial alternative remedy. Mentioning it on the invoice costs nothing and moves invoices up payment queues.

Which format to build your template in#

Build in whatever you like. Send a PDF, every time. It renders identically everywhere, cannot casually be altered after it leaves you, and is what accounting systems expect. An editable Word or Excel file quietly signals that the numbers remain open, and some finance teams reject one outright.

If you build in a spreadsheet, set the print area and margins once so the PDF export lands on a single clean page. A spreadsheet exported without that becomes three pages with a stray column on the third.

Template variants you will eventually need#

Rather than maintaining several files, keep one template with rows you show or hide.

Hourly work. Quantity is hours, rate is your hourly rate. Say what the hours covered, at whatever granularity the client expects.

Deposit or milestone. Label it clearly — "Deposit invoice — 50% of project total per SOW dated ___" — and on the final invoice show the deposit as a deduction with "Balance due" at the bottom.

Recurring retainer. Add the period covered: "Retainer — September 2026". Without it, three identical invoices become indistinguishable in an accounts inbox.

Expenses and disbursements. Keep them on separate lines from your fee, and say whether they are marked up. If your client expects receipts, attach them to the same email rather than sending them later.

Credit note. When you need to cancel or reduce an invoice already issued, do not edit the original — issue a credit note with its own number that references the original invoice. Editing an issued invoice breaks the audit trail.

Layout: the small number of design decisions that matter#

Most advice about invoice design is about looking professional. That is not really the goal. The goal is that a stranger, skimming for four seconds, can find three things: who this is from, how much, and by when. Everything else is secondary.

Reading order. People scan an invoice in a predictable path: top-left for the sender, top-right for the number and dates, then straight down the right-hand column to the total, then back up to the description only if something looks wrong. Put your fields where that path expects them.

One dominant number. The total should be visibly the largest figure on the page. If your line amounts, subtotal and total are all the same size, the reader has to work out which is which.

Right-align every column of figures, with two decimals throughout. Left-aligned numbers cannot be scanned for magnitude, and a column where some entries show two decimals and some show none reads as careless.

Give the description column real width. The most common template flaw is a description box sized for four words. Three lines per item is a better default — you can always leave them empty.

Keep it to one page if you reasonably can. Two pages means the total might be on a sheet somebody did not print. If you genuinely need more, repeat the invoice number and "page 2 of 2" in the header.

Print in black. Your invoice will be printed, photocopied, scanned and faxed by somebody's accounts department. Pale grey body text at 8pt survives none of that. Keep body text near-black and no smaller than 10pt.

Logos are optional and small. A logo is pleasant and contributes nothing to whether the invoice is approved. If you have one, put it top-left at a modest size. If you do not, correct entity names matter a hundred times more.

Invoicing across borders#

A template built for domestic work needs three additions once you invoice overseas.

Bank details that actually work internationally. A UK sort code and account number is useless to a US client's bank. Include IBAN and BIC/SWIFT for European payments, and for US clients note whether you can receive ACH or need a wire. Say which fees you expect the payer to cover — "OUR", "SHA" or "BEN" is the formal language, but "please send as SHA — we each cover our own bank's fees" is clearer to a human.

State the currency in the total, not just with a symbol. "USD 3,200.00" leaves no room for a client to pay in the wrong dollar.

Say who bears the exchange risk. If you invoice in your client's currency, you absorb any movement between invoicing and payment. If you invoice in your own, they do. Either is fine; agreeing it in advance avoids a short conversation about a shortfall.

Tax gets more complicated, not less. For UK suppliers of services to overseas business customers, the reverse charge may mean you charge no VAT but must show the customer's VAT number and a note that the reverse charge applies. For US suppliers, sales tax generally does not apply to exports, but state rules on services vary. Neither is something to work out from a template — but your template needs a row where the answer can go.

Credit notes: how to correct an invoice you already sent#

You cannot fix an issued invoice by editing it. Once it has gone out, it exists in your sequence and possibly in your client's system, and quietly changing it breaks the audit trail on both sides.

The correct instrument is a credit note:

• Give it its own number, in its own sequence — CN-2026-004
• Reference the original invoice number and date on it
• Show the amount being credited, with VAT treated the same way as on the original
• State why in one line — "Credit for duplicate charge on line 2 of INV-2026-014"
• Send it alongside a corrected invoice if a replacement is needed

If the error is caught before the client has processed anything, you can also cancel and reissue — but keep the cancelled number out of use rather than reusing it, and note in your register why the gap exists.

The mistakes that cost the most#

Leaving the sample tax line in. Templates ship with one. Delete it unless it applies.

No supply date. Required in the UK, and it is what determines the VAT tax point.

No space for a purchase order number. Silent, indefinite delay in any organisation with procurement.

A one-line description box. Forces vagueness, which forces an email.

Reusing an invoice number because you overwrote last month's file. Save each invoice as a new file, never edit the previous one.

Sending an editable file. Send a PDF.

No due date. Without one, your invoice defaults to the client's convenience.

Keeping only the template, not the invoices. The IRS ties retention to the period of limitations — generally three years, extending to six where income is under-reported by more than 25%. UK limited companies must keep records six years; sole traders five years after the 31 January filing deadline; VAT records six years. Keep a PDF of every invoice you issue in a folder you back up.

The one file that matters more than the template#

Alongside your invoices, keep a register — a single spreadsheet with six columns:

This does three jobs. It gives you the next invoice number without guessing. It answers "who owes me money right now" in one glance — the question that actually keeps small businesses awake. And at tax time it is your income summary, already written.

Sort by the due column with the paid column empty, and you have your chase list.

When a template stops being the right tool#

A template is correct until the admin around it costs more than the alternative. Move on when:

• You cannot answer "who owes me money" in under a minute
• You are sending more than roughly fifteen invoices a month
• You have registered for VAT — in the UK, Making Tax Digital requires digital records and compatible filing software
• You are chasing several overdue invoices at once
• Someone else needs to raise an invoice when you are away

Until then, one template plus one register is a completely legitimate system, and it is faster than software.

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If you would rather not maintain a template at all, our free invoice generator has every field described here, calculates the due date from your chosen payment terms, does the arithmetic, and produces the PDF in your browser. No account, no watermark, nothing uploaded.

More detail on particular situations: what should be included in a US invoice, the best invoice format for UK freelancers, a freelance invoice template, a self-employed and sole trader template, a VAT invoice template, and Net 15 vs Net 30 vs Net 60.

General information, not legal, tax or accounting advice. Requirements differ by country and change. See our disclaimer.