Groundworker invoice template UK (2026): foundations, CIS & VAT

A groundworker invoice in the UK is not one PDF with “groundworks as discussed” on it. Digging a trench for a private driveway, pouring strip foundations under a main contractor’s purchase order, and hiring a digger with an operator for a week on someone else’s site are three different bills — even when the same CSCS card and the same van turn up.

Get the customer type wrong and the rest follows. CIS does not sit on a private householder. Excavation, earth-moving and laying foundations typically sit within CIS when you are paid as a subcontractor by a contractor. Mixing free-issue concrete from the main contractor into “materials” is how they deduct 20% of someone else’s concrete. Reverse charge does not sit on a customer who is not VAT-registered. “Groundworks” with no stage, no plot and no labour split is how a payment run bounces your invoice into next month.

This is the 2026 groundworker / groundworks template: copy-paste fields, labour versus materials versus plant, stage payments for foundations and drainage, CIS when it actually applies under CISR14240 and the public CIS overview, VAT under the usual registration rules and Notice 700/21 invoice particulars, reverse charge only when the tests are met, late-payment wording for B2B versus consumers, and why Building Control completions and structural engineer certificates are not this PDF. InvoiceAdept does not file CIS300, VAT returns or MTD updates to HMRC, and it does not decide CIS or VAT status.

Rules from GOV.UK / HMRC. Figures are worked examples, not a price list. General information only — not tax, legal, structural or Building Regulations advice. InvoiceAdept is from Tech Me Today Ltd, Companies House 15917255, ICO ZB944663. Free: five invoices a month. Pro £7.99. Pro+ £12.99 (CIS). WhatsApp send on Pro. No platform fee on Stripe.

Sister pages: landscaper, builder, bricklayer, electrician, plumber. Walkthrough: how to invoice a UK client as a tradesperson. Deposits: deposit invoice template UK. CIS: invoicing subcontractors CIS UK · CIS explained. Reverse charge: domestic reverse charge invoice UK.

In short

Decide who you are billing and what you are actually doing.

Homeowner / private client: normal invoice. No CIS — an ordinary householder is not a CIS contractor (GOV.UK CIS). VAT only if you are registered, usually at the standard rate of 20% for domestic alterations, extensions and repairs unless a listed relief in Notice 708 genuinely applies. Do not invent 0% on a lived-in extension foundation.

Contractor / developer / main contractor: labour/materials split, UTR, and CIS at 0%, 20% or 30% on the labour element when the work is a construction operation and they are paying you as a subcontractor. HMRC’s preparatory-operations page (CISR14240) lists site clearance, earth-moving, excavation, tunnelling, boring (except for surveying), laying foundations, and related preparatory work as within the scheme under FA04/S74(2)(f). GOV.UK’s public CIS page also names “preparing the site — for example, laying foundations and providing access works” as construction work. Drainage and concreting connected to those operations are typically treated the same way when you are a subcontractor. Soft landscaping and routine gardening are a different story — see CISR14200 and our landscaper guide. Never reverse-charge a private householder. Never reverse-charge 0-rated work.

Name the site address, plot or phase, the package (foundations, drainage, hard landscaping prep, concreting), and the stage (excavate, pour, backfill, snag). Invoice the deposit when you take it — especially before a concrete or drainage order. Digging, shuttering and pouring time are labour. Merchant tickets you paid are materials. Free-issue concrete or pipe from the main contractor is not yours. A variation for an extra soakaway is not a silent bump inside “additional groundworks”.

First invoice: invoice generator. Free is five a month — deposit plus foundation stage plus drainage stage plus final can burn the cap on one plot.

Three jobs, three invoices

Most “groundworker invoice template UK” pages treat every customer as a name and a total. On site they are not.

A contractor working for a homeowner is still a contractor when you bill them. No reverse charge on a private customer — that does not make the contractor an end user for the groundworker who bills them. See HMRC’s reverse charge supplier page. Homeowners only: skip CIS and reverse charge, still read stages, the tax point, and what must appear on the invoice.

What counts as groundworks on the invoice (and for CIS)

Use plain English on the PDF. “Groundworks” is a trade label, not a legal category. HMRC cares about construction operations.

If one contract mixes construction operations with non-construction work, HMRC’s mixed-contract rules can pull the whole payment into CIS. Keep soft-only maintenance on its own paperwork where you can. Do not invent a split your paperwork does not support. When unsure, ask your accountant — this page is not a ruling.

What must be on a UK groundworker invoice

GOV.UK is narrower than most blogs. You must give an invoice by law when both you and the customer are VAT-registered. If you are not, keep numbered records of what you charged — that is also how you get paid. What the invoice must include:

• a unique identification number

• your name (or company name), address and contact information

• the customer’s name and address

• a clear description of what you are charging for

• the date the goods or service were provided (supply date)

• the date of the invoice

• the amount being charged

• VAT amount if applicable

• the total amount owed

Sole trader with a trading name: show your own name and a serviceable address. Limited company: registered name, company number, registered office.

VAT-registered: VAT number, rate, net, VAT in sterling — see VATREC5010 and Notice 700/21. Threshold £90,000 — register for VAT if you have gone over, or will. For a groundworker, “clear description” is what gets you paid and what keeps foundation stages from collapsing into one mystery line.

Weak versus usable descriptions

Setting-out drawings and engineer schedules can sit as attachments. InvoiceAdept does not issue Building Control, NHBC or structural engineer certificates. Do not print a sign-off you are not on.

Checklist you can tick in the van

Copy-paste groundworker invoice fields

Delete the lines that do not apply. Do not leave “N/A” hanging on a domestic bill.

Invoice number / date / supply date / due date
Your legal name, address (company number + registered office if limited)
VAT number only if registered · UTR only if this invoice is under CIS
Customer name and address
Site address / plot / phase / purchase order (contractor jobs)
Description of works (foundations / drainage / excavation / hard prep / plant)
Quantities: m, m², m³, days, or fixed stage
Labour total (exclude materials)
Materials at your direct cost (merchant tickets) — not free-issue
Plant hire you rented from a third party (if claiming as materials for CIS)
VAT: rate + amount, or reverse-charge wording if it applies
CIS: show labour subject to deduction and expected rate (0 / 20 / 30)
Retention withheld (if any) and release trigger
Bank details / payment link

Labour versus materials versus plant

CIS deductions are calculated on the payment after removing the subcontractor’s direct cost of materials for that contract (CISR15060; CIS 340). Mark-up is not materials. Free-issue from the main contractor is not your direct cost.

Keep receipts. Contractors are entitled to ask for evidence; if you cannot show direct cost, they may estimate — and wrong estimates create under-deduction risk for them and cash-flow pain for you.

Stage payments for groundworks

Long groundworks packages rarely work as one invoice on completion. Split by stage that the customer can see on site.

Domestic tip: take the deposit before you book the concrete or open the trench — especially when the householder is paying by bank transfer after payday. Contractor tip: match stages to valuation dates and the purchase order; do not invent a stage the contract does not recognise.

Photograph trench bottoms, pour days and drainage connections before you cover them — those photos sit beside the stage invoice when accounts ask what “foundation stage 2” means. If Building Control or the engineer must inspect before the next stage, say so on the invoice description so the customer expects the gap.

See also: deposit invoice template UK.

Day rates versus fixed price

Both are fine. The invoice still needs a clear description.

Waiting time for concrete, plant breakdowns you did not cause, and rock that was not on the survey are variations — not silent padding of the day rate.

Retention on groundworks packages

Retention is common on contractor packages (often 2.5%–5% held to practical completion / defects liability). If the contract holds retention:

• Show gross certified, retention withheld, and net due on the invoice

• Name the release date or trigger (e.g. end of defects period)

• Do not treat retention as “late payment” until it is actually due under the contract

Domestic householders rarely use formal retention; a snagging holdback agreed in writing is clearer than an informal “I’ll pay the last £500 when I’m happy”.

Sole trader versus limited company

CIS and VAT are separate systems. Being under CIS does not remove a VAT registration duty once you cross the threshold.

CIS when it applies to groundworkers (careful)

Start with the public rule, then the manuals.

GOV.UK says CIS covers most construction work to buildings/structures and civil engineering, including preparing the site — for example, laying foundations and providing access works, demolition, building work, alterations, and installing systems for heating, lighting, power, water and ventilation.

CISR14240 (preparatory, integral and finishing operations) puts these within the scheme under FA04/S74(2)(f), including:

• site preparation and site clearance

• earth-moving on site

• excavation

• tunnelling and boring (except boring for surveying purposes)

• laying foundations

• erecting scaffolding, falsework and formwork

• site restoration and landscaping as finishing operations (context matters — see CISR14200 for soft vs hard)

Also note what that page treats as not construction operations in the preparatory section: delivery of materials, including liquid concrete, and transport of spoil from site (haulage that is not part of the preparatory construction operation itself). Plant hire with an operator for use on site is an integral operation; plant hire without an operator is outside CIS (CISR14260).

Deduction rates HMRC verifies (GOV.UK contractor deductions):

Householder invoices: no CIS. Your invoice to a private client does not carry CIS lines just because the work would have been CIS for a contractor.

Soft landscaping caveat: routine gardening and soft landscaping not undertaken in a wider construction project are excluded on CISR14200. Hard landscaping (walls, drives, patios as works forming part of the land) can be within CIS when the contractor relationship exists. If you do both, keep descriptions honest and packages separate where the contracts allow.

When you are the subcontractor, keep every payment and deduction statement the contractor issues (they must give one within 14 days of the end of each tax month if they deducted). Those statements feed Self Assessment and any reclaim of over-deducted tax once expenses are claimed. When you pay other groundworkers or plant-with-operator firms, you may have contractor duties — verify them, deduct correctly, and file returns. That is a different hat from the invoice you send upward.

InvoiceAdept can help you present labour/materials splits and CIS-friendly invoice lines on Pro+. It does not verify subcontractors with HMRC or file CIS300 returns.

VAT for groundworkers

If you are not VAT-registered, do not charge VAT and do not show a VAT number.

If you are VAT-registered:

• Standard rate 20% applies to most domestic alterations, repairs and commercial construction services unless a specific relief applies

• New qualifying dwellings and certain closely connected works can be 0% under VAT Notice 708 — do not guess; check the notice (and your accountant) before printing 0% on foundations for a lived-in extension

• Full VAT invoices need the particulars in VATREC5010 / Notice 700/21: sequential number, tax point, supplier details and VAT number, customer details, description, net amounts, VAT rate and VAT in sterling

• Registration threshold: taxable turnover more than £90,000 (GOV.UK VAT thresholds)

Passing through materials and plant hire increases turnover. Monitor the rolling 12 months — especially once you supply ready-mix and Type 1 on multiple plots.

Reverse charge when applicable

The domestic reverse charge for building and construction services can apply when:

• the supply is within CIS reporting

• both you and the customer are VAT-registered

• the supply is standard- or reduced-rated (not zero-rated)

• the customer is not an end user (and has not given valid end-user written confirmation)

When it applies: show the VAT treatment and reverse-charge wording; the customer accounts for the VAT. When it does not: charge VAT as normal (or 0% where genuinely zero-rated). Never reverse-charge a private householder. Full walkthrough: domestic reverse charge invoice UK.

Worked example A — domestic extension foundations (private householder)

Figures are illustrative only.

No CIS. No reverse charge. If VAT-registered at 20% on this lived-in domestic job, add VAT on the taxable supply in line with your tax point rules — do not bury VAT inside “concrete inclusive”.

Worked example B — contractor plot foundations (CIS)

Illustrative registered subcontractor at 20%, VAT-registered, reverse charge applying.

Show UTR, verification status if known, PO, site and plots. Keep free-issue concrete off your materials line.

Worked example C — plant with operator (day rate)

Do not label dry hire as “with operator” to chase a higher day rate — you will mis-state CIS.

Variations, extras and snagging

Ground changes. Rock, services not on the drawing, contaminated spoil, and waiting for concrete all create extras. Process:

1. Agree the variation in writing (WhatsApp confirmation counts better than nothing; a signed dayworks sheet is better)

2. Invoice the variation on its own lines — do not inflate the original package silently

3. Snagging that is your defect is usually not a new charge; snagging that is a client change is

Sister reading: variation-order discipline on contractor jobs keeps payment certificates moving.

Payment terms and chasing payment

For B2B late payment rights and interest, see late payment rights UK tradespeople and how to calculate late payment interest UK. Consumer rules differ — do not paste statutory B2B interest wording onto a domestic householder without checking where you stand.

How InvoiceAdept fits a groundworker

Making Tax Digital and CIS monthly returns are compliance duties between you (or your accountant) and HMRC. Numbered invoices, clear labour/materials splits, and saved merchant tickets make that work easier. InvoiceAdept stores and sends invoices; it does not file your VAT return, CIS300 or Self Assessment.

UK trades need fast, clear invoices — especially when one plot needs a deposit, a foundation stage, a drainage stage and a retention release.

• Create numbered invoices on phone or desktop

• Split labour and materials lines for CIS-friendly presentation (Pro+)

• Send by email or WhatsApp (WhatsApp send on Pro)

• Card payments via Stripe with no platform fee on top of Stripe’s own pricing

• Free plan: five invoices a month — enough to try, tight if you stage every plot

• Pro £7.99 · Pro+ £12.99 with stronger CIS workflows

Start with the invoice generator or InvoiceAdept for UK trades. Soft sell on purpose: the template above still works if you type it in a blank PDF — software just stops you retyping plot numbers at 9pm.

Mistakes groundworkers make on invoices

FAQ

Do groundworkers come under CIS?

Usually yes when you do construction operations for a contractor — excavation, earth-moving, laying foundations and related preparatory work are within the scheme under CISR14240 and the GOV.UK CIS overview. No when you invoice a private householder who is not a CIS contractor. Soft landscaping / routine gardening not part of a wider construction project can be out of CIS (CISR14200).

Is CIS deducted from materials and concrete?

No. CIS is calculated after removing your direct cost of materials (and qualifying third-party plant hire / plant fuel) for that contract (CISR15060, CISR15090). Mark-up and free-issue are not your materials.

Should I put CIS on a homeowner invoice for foundations?

No. An ordinary householder is not a CIS contractor. Send a normal invoice (with VAT only if you are registered).

What VAT rate do I charge on domestic foundations?

If you are VAT-registered, most lived-in domestic extension and alteration work is standard-rated at 20% unless a specific zero- or reduced-rate relief in Notice 708 applies. Do not copy 0% from a new-build plot onto a lived-in semi without checking.

Does plant hire with an operator fall under CIS?

Payments for plant with an operator for construction use are within CIS; plant hire without an operator is outside (CISR14260). Say which one you are supplying on the invoice.

Can I invoice stage payments for foundations and drainage?

Yes — and you usually should. Deposit, excavation, pour, drainage and final/snag stages keep cash flow aligned with work done. Match contractor valuations to the contract.

What if the main contractor supplies the concrete?

Do not list free-issue concrete as your materials. Invoice your labour (and any materials you actually bought). Free-issue is not your direct cost for CIS.

Do I need a UTR on every groundworks invoice?

Show your UTR on invoices where CIS applies (contractor/subcontractor construction operations). You do not need CIS decoration on a simple domestic householder bill.

About this guide

Written for UK groundworkers and groundworks subcontractors invoicing in 2026. CIS and VAT positions summarised from GOV.UK / HMRC manuals including CISR14240, CISR14200, CISR14260, CISR15060, CISR15090, VATREC5010, and the public CIS and VAT threshold pages. Always check the current GOV.UK text and take advice on your facts. InvoiceAdept is invoicing software for UK trades — not an accountant or tax agent.