Groundworker
invoice template

Groundworkers invoice contractors and developers for excavation, foundations, drainage and hard standing, often with plant and an operator included. Below is a ready-made groundworker invoice template, with worked example lines, the VAT and payment rules that apply, and the mistakes that most often delay payment.

What goes on a groundworker invoice

Describe the operation and the location: excavate and pour strip foundations to plot 7, lay 110mm drainage runs, sub-base for driveway. Give quantities (metres, cubic metres, days) and separate plant with operator, materials such as concrete, and muck away.

Line by line: Excavate and pour strip foundations, plot 7, 1 job × £3,200.00 = £3,200.00; Mini digger with operator, 3 days × £320.00 = £960.00; Ready-mix concrete, 12 m³, 1 × £1,560.00 = £1,560.00; Muck away, 3 loads, 3 × £240.00 = £720.00. The subtotal is £6,440.00. VAT at 20% adds £1,288.00, so the total is £7,728.00. The figures are illustrative, not a price guide, so use your own rates.

The legal minimum is the same for every trade. GOV.UK says an invoice needs a unique number, your business name and address, the customer's name and address, a description of the work, the supply date and invoice date, the amount charged, VAT if you charge it, and the total due. This template lays each of those out for groundworkers; for the detail, read what a UK invoice must include.

Give each invoice the next number in a single sequence and never reuse one. A cancelled invoice keeps its number and is cancelled with a credit note. If you want a format that stays tidy for years, try the invoice number generator.

How groundworkers price their work

Groundwork is priced by measured quantities (metres of trench, cubic metres), day rates for labour and plant, or as a package for a whole plot.

Keep the pricing visible. Each line should show the quantity, the unit and the rate, so the customer can match it to the quote. To set rates that cover your costs and your tax, try the day rate calculator; for materials and stock you resell, the profit margin calculator shows the margin you really make.

Agree this before you start

Agree the drawings, what happens with unexpected ground conditions or buried services, who orders concrete, muck-away costs, and the valuation dates. Unforeseen ground is the most common reason groundwork invoices are disputed.

When to send a groundworker invoice

Invoice against the contractor's valuation dates, usually monthly, with measured quantities.

An invoice sent on the day tends to be paid on time; one sent weeks later tends to be paid weeks later. Email it as a PDF and keep a copy. The invoice due date calculator shows exactly when payment falls due under your terms.

VAT on groundworker invoices

Groundworks for a new dwelling are zero-rated along with the rest of its construction; groundworks for commercial or existing buildings are standard-rated, and the reverse charge often applies between registered businesses.

Once registered, groundworkers charge 20% on most work to existing homes and commercial buildings. The reliefs are narrow: zero rate for building a new dwelling, 5% for converting a building into homes or renovating one empty for at least two years, and zero rate on qualifying energy-saving installations in homes until 31 March 2027. When a job mixes rates, put each on its own line so the VAT on the invoice can be checked.

Registration is compulsory once taxable turnover in the last 12 months passes £90,000, or when you expect to pass it within the next 30 days. Check your position with the VAT registration checker; until then, see invoicing without a VAT number.

CIS: when a contractor pays you

Working for a contractor brings you into CIS. The contractor verifies you with HMRC, then takes 20% (registered) or 30% (not registered) from the labour on each payment, or nothing if you have gross payment status. Materials are not subject to the deduction, which is why a CIS invoice splits labour from materials. The deductions are not lost: they are credited against your Income Tax and National Insurance, and your monthly statements from the contractor are the evidence.

Site preparation, excavation, foundations and drainage are all construction operations under CIS. Plant hired with an operator is within CIS; plant hired without one is not.

The CIS calculator shows what you receive after the deduction, and CIS invoice requirements sets out the invoice layout contractors expect.

The domestic reverse charge

When both sides are VAT registered and the job is reportable under CIS, the customer, not you, usually pays the VAT to HMRC under the domestic reverse charge. Your invoice shows the VAT that would have been due and a note that the reverse charge applies, but leaves it out of the total. End users, such as homeowners and businesses improving their own premises, pay VAT in the normal way. Check each case with the reverse charge checker and copy the invoice wording.

Working for homeowners

When the customer is a household rather than a business, consumer law sets the ground rules. A job agreed in someone's home, or by phone or online, normally carries a 14-day cancellation right under the Consumer Contracts Regulations. Starting earlier is fine when the customer asks, but record that request in writing, and bill only for work done if they later cancel.

Deposits, stages and cancellations

Deposits are unusual on contractor work; packages are paid monthly against valuations.

Tie each payment to something the customer can see: a deposit when the booking is confirmed, then a stage payment at each agreed milestone, then the balance when the job is signed off. Commercial customers sometimes hold a retention against defects. If they do, invoice for the full stage and show the retention as a deduction with the date it falls due.

Payment terms for groundworkers

Contractors pay on their own cycle, commonly 30 days from the application date.

Between businesses, the default when nothing is agreed is 30 days from receipt of the invoice or the work, whichever comes later, and agreed terms should not normally exceed 60 days. Late business payers owe statutory interest at 8% above Bank Rate plus fixed compensation per invoice; the late payment interest calculator does the sums. Private individuals are not covered by that Act, so agree your terms with them in writing before the work starts.

Getting paid faster

Put everything the customer needs to pay on the invoice: your bank name, account name, sort code and account number, and the reference to use, normally the invoice number. Give a due date, not just "on receipt". Then follow a routine: a reminder the day after the due date, another a week later, and a firmer letter after two weeks. Most late payment is disorganisation, not refusal, and a routine fixes it. Invoice payment terms compares the common options, and the due date calculator turns them into a date.

If a customer disputes the invoice

When a customer queries an invoice, reply quickly and in writing, quote the quote or agreement, and ask them to pay the part they accept while you resolve the rest. A credit note can settle a partial dispute cleanly. Unpaid after reminders? Send a letter before action with a final date; in England and Wales, claims up to £10,000 can then go to the small claims track. Invoice disputes and small claims for an unpaid invoice have the detail.

Common groundworker invoicing mistakes

• Plant and labour on one line. Show plant with operator separately so the contractor can apply CIS and check hire rates.
• No record of unforeseen ground. Photograph and note it before you price the extra work.
• Forgetting muck-away. Disposal is expensive; list loads and tip charges.
• Leaving out the due date. "Payment due within 14 days" or a date on the invoice gives you something to chase against. Without one, business customers default to 30 days.
• Losing track of what is unpaid. Chase on the day after the due date, not a month later; the guide to chasing an unpaid invoice has the wording.

Checklist before you send it

A quick check before sending saves a chase later:

• The invoice number is the next in your sequence and has never been used.
• The customer's name and address are right, with their purchase order or reference if they use one.
• Each line shows what was done, the quantity, the unit and the rate.
• The subtotal and total add up, and VAT appears only if you are VAT registered.
• The invoice date, a due date and your bank details are on it.
• A copy is saved with your records before you press send.

Keep a copy of every invoice

Your invoices are the evidence behind the income on your tax return, so keep a copy of every one. Making Tax Digital for Income Tax makes that digital: from 6 April 2026 for qualifying income over £50,000, from April 2027 over £30,000, and from April 2028 over £20,000, with quarterly updates to HMRC. Check your start date with the MTD requirement checker.

Download the groundworker invoice template

Download it as a Word document for Word or Google Docs, as an Excel workbook whose totals are live formulas, or as a print-ready PDF. Prefer to fill it in on screen? The free invoice generator opens pre-filled with the example groundworker lines, lets you choose a template and colour, and makes a finished PDF in a minute, with nothing stored.

For the tax side of the trade, from allowable expenses to Making Tax Digital, read the self-employed groundworker tax guide. A TapTax account, free to start, keeps your invoices and records together and files your quarterly updates to HMRC.