Bill day rates, hours, retainers and expenses on one invoice your client’s accounts team can match to the purchase order. Download the PDF in a minute. No sign-up, and nothing leaves your device.
VAT, CIS and the reverse charge worked out to HMRC’s own rules and examples. Sales tax worked out to the cent, on US Letter paper. Your currency and your tax rate, on A4 paper.
Many accounts teams will not pay an invoice that has no PO number, so ask for it when the engagement is agreed.
Bill a retainer in advance, at the start of the period it covers, and bill any hours beyond it in arrears on the next invoice. Say which period each invoice covers so nothing is billed twice.
Pass expenses on at cost, each on its own line, and attach the receipts so nobody has to ask for them.
If you consult as an individual independent contractor, three states' freelance laws can apply: New York State for work of $800 or more, California for work worth more than $250, and Illinois for $500 or more in a 120-day period. The client owes you a written contract, and if it sets no payment date, payment is due within 30 days of finishing the work.
Sources: New York Attorney General, California Governor's office, California Senate, Illinois Department of Labor
A business that pays you $2,000 or more in a year, for payments made after December 31, 2025, files a Form 1099-NEC, and it will ask for your Form W-9 first. Payments to corporations, including LLCs taxed as corporations, are generally not reported. If you do not give a correct taxpayer ID, the client must hold back 24% of each payment as backup withholding, so send the W-9 with your first invoice.
Sources: IRS: Form 1099-NEC, IRS: 1099-NEC instructions, IRS: Form W-9, IRS: backup withholding
A UK invoice needs a unique number, your name or company name, address and contact details, the client’s name and address, a description of the work, the supply date, the invoice date and the total. A limited company uses its full name exactly as it appears on the certificate of incorporation. Charge VAT only once registered: registration is compulsory when taxable turnover for the last 12 months goes over £90,000.
Consulting clients are businesses, so if one pays late you can claim statutory interest at 8% over Bank Rate plus a fixed £40, £70 or £100, unless your contract sets its own rate. The late payment interest calculator works it out.
Sources: gov.uk: what an invoice must include, gov.uk: register for VAT, gov.uk: late commercial payments, gov.uk: charging interest
Rules checked against the official sources linked above on October 19, 2026. Example prices are illustrative. This is general guidance, not legal or tax advice.
Yes, if a business pays you $2,000 or more for services, for payments made after December 31, 2025, and you are not a corporation. The client files the 1099-NEC; your invoice does not need to mention it.
That is the usual way: the retainer at the start of the period it covers, and any hours beyond it in arrears on the next invoice. Put the period on every invoice so nothing is billed twice.
Yes, when the client is a business: 8% over Bank Rate plus fixed compensation of £40, £70 or £100, depending on the size of the debt, unless your contract sets its own rate.
Yes. Make as many invoices as you like. The PDF is built in your browser and never sent to us.