Decking invoice template UK (2026): timber, CIS and VAT

A decking invoice has to explain what was surveyed, set out, excavated or piled, framed, boarded, balustraded and snagged - not a vague "decking done" line. "Supply and fit decking as agreed" does not tell a householder whether they got a rear softwood timber deck on concrete pads, a raised composite deck on ground screws, a balcony-style deck with glass balustrades, a wraparound deck joining a patio, or a deck with stairs, privacy screens and low-voltage lighting. It does not tell a main contractor's QS which plot, purchase order or external-works package to release. It does not tell a CIS contractor how much is labour and how much is the direct cost of posts, joists, boards, fixings, balustrades, stairs and waste you paid for.

Decking is timber or composite outdoor structure work, not a paved patio and not a full resin driveway. Mentions of a porch, orangery, garden room, basement conversion or extension on this page are contrasts and cross-links only - the subject here is the deck package. Soft landscaping alone belongs with landscaper guides; keep planting out of a decking-only invoice unless it was part of the agreed package.

Who pays matters. Billing a private householder for a deck on their own home: normal invoice, no CIS. Billing a main contractor, developer or refurbishment principal for construction operations on decking structures: often CIS. HMRC's CISR14100 treats construction, alteration, repair, extension, demolition or dismantling of buildings or structures (whether permanent or not), including structures on foundations, as construction operations (Finance Act 2004 section 74(2)(a)). Contractor-paid decking that sits on pads, ground screws or foundations and forms an outdoor structure usually needs a hard look under that heading. When decking sits inside a wider preparatory or finishing package, CISR14240 can also be relevant. Soften if you only manufacture or deliver boards and joists with no install - CISR14220 keeps manufacture/delivery of building components alone outside CIS. Supply-plus-install can pull the whole payment into CIS (CISR14020 / CISR14030). Private householders are not CIS contractors - see the public CIS overview.

VAT is separate. If you are VAT-registered, an ordinary timber or composite deck on an occupied existing dwelling is usually standard-rated at 20%. Soften absolute claims about VAT Notice 708; reduced (5%) or zero rates only apply when narrow conditions are met. Never reverse-charge a householder. Design and survey fees are usually standard-rated even when some construction services on a wider project are reduced-rated.

This guide gives copy-paste fields, a labour/materials split for decking packages (including composite board deposits), stages from posts/joists through board and balustrade/snag, four worked examples and a practical treatment of CIS, VAT and domestic reverse charge. Figures are illustrative only, not UK market rates or a price list. InvoiceAdept does not decide CIS or VAT status and does not file CIS300, VAT returns, Making Tax Digital updates or Self Assessment to HMRC. It does not issue Building Control completion certificates, planning permissions or Party Wall awards.

Related templates: builder, extension, patio, driveway, orangery, porch, garden room, deposit invoice, domestic reverse charge and how to invoice a UK client as a tradesperson. This page focuses on residential decking - softwood, hardwood and composite boards, joists, posts, ground screws or concrete pads, balustrades, stairs, privacy screens and deck lighting - not full paved patios or resin driveways as the main product.

Rules and links were checked for this guide on 7 September 2026. General information only, not tax, legal, Building Regulations, Party Wall or planning advice. InvoiceAdept is from Tech Me Today Ltd, Companies House 15917255, ICO ZB944663.

In short

Start by identifying who pays you, what deck type you supplied or installed (timber vs composite, raised vs low-level), whether posts sit on concrete pads or ground screws, whether composite boards or glass balustrades must be ordered before work starts, and whether the contract is supply-only or supply-and-install.

Private householder, own-home deck: no CIS. The householder is not a CIS contractor. If VAT-registered, an ordinary rear timber deck / raised composite deck / wraparound deck at an existing lived-in home is usually 20%. Show survey/set-out, excavation or ground screws, posts and beams, joists, boards, fixings, balustrades, stairs, screens, lighting electrics if included, waste/skip, Building Control fee if charged, and snag clearly. Do not claim "VAT free" because it is outdoor living space.

Decking package for a CIS contractor: typically within CIS when a contractor pays you for construction or alteration of a structure / building works (CISR14100). Cite CISR14240 when works sit inside a wider finishing or preparatory package. Split labour from materials at direct cost (CISR15060 / CISR15090). For composite boards or balustrade kits purchased complete, materials are usually the purchase cost; labour is the posts / joists / board / balustrade install.

Manufacture and delivery of materials only (no install): generally outside CIS (CISR14220). A mixed contract that supplies boards and includes installation can pull the whole contract into CIS (CISR14020 / CISR14030).

VAT reduced rate (5%) or zero: only when Notice 708 conditions are actually met. Ordinary decks on an occupied house stay 20%. Never reverse-charge a householder. Never invent 0% for a normal timber or composite deck.

Take a deposit before ordering composite boards, glass balustrades or specialist hardwood if your terms require one. Number and invoice that deposit. Then use recognisable stages: posts / substructure, board, finish / balustrade / snag. Keep variations for extra stairs, screens, lighting or deck extensions separate from the agreed package.

Use the invoice generator for a first invoice. InvoiceAdept Free is £0 for five invoices per month. Pro is £7.99 excl VAT and includes WhatsApp send. Pro+ is £12.99 excl VAT and includes CIS. Stripe's own fees apply (UK cards 1.5%+20p), but InvoiceAdept adds no platform fee.

Who this decking invoice template is for

This template is for UK decking specialists, carpenters and builders who deliver deck packages as a defined product, and subcontractors who set posts, frame joists, board decks, fit balustrades and stairs, or wire deck lighting and need readable invoices for householders, landlords, builders and housing clients. It covers the paperwork pattern, not a price list and not a Building Control or planning document.

• Decking specialists (rear, side, wraparound, raised, balcony-style, softwood, hardwood, composite)

• Carpenters and joiners who build timber frames and board decks as a defined package

• Builders who include decks in residential packages alongside extensions, orangeries or garden rooms

• Groundworkers setting pads, piles or ground screws for deck substructures

• Metalworkers and glass balustrade installers billing as part of a deck package (or separately)

• Electricians billing low-voltage deck lighting as part of a package (or separately)

• Subcontractors to main contractors on residential deck / external-works packages

• Sole traders and limited companies who need CIS and VAT lines that match the payer

If your day job is a paved patio without a deck brief, a full resin driveway, soft planting only (landscaper), or a stand-alone porch, use those related guides and come back here for decking-specific lines (posts, joists, boards, balustrades, stairs, ground screws and screens).

Three decking jobs, three invoices

These three jobs can use similar boards but need different invoice logic.

A main contractor can be the CIS contractor even when the finished deck serves a tenant or homeowner. If the builder engages you, your invoice is to that builder. That contractor-to-subcontractor payment is the one to test. If the householder hires and pays you directly, the householder invoice has no CIS.

What decking work belongs on the invoice

Name the work so a QS, householder or future buyer can see what was actually built.

Raised decks need height, post centres and foundation type on the description. Low-level decks still need board product, joist centres and how the frame meets the house (ledger board, gap, flashing notes where relevant). Composite systems often have brand-specific fixings - name the system if your quote did.

What a UK decking invoice must include

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

• 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 (address, deck type, size, board product, stage)

• The date the goods or service were provided (supply date) and the date of the invoice

• The amount being charged, the VAT amount if applicable, and the total amount owed

Sole trader with a trading name: show your own name and a serviceable address. Limited company: registered name, company number and registered office. The VAT registration threshold is £90,000, not the stale £85,000 figure. For a decking invoice, a clear description is what gets you paid, so name the site address, approximate size (m2), board type, foundation method and stage (deposit / posts / board / completion).

CIS lines (UTR, labour, materials, rate, deduction, net payable) belong when a contractor is paying you under the scheme - not on a private householder job. Domestic reverse charge wording belongs only when the VAT reverse-charge tests are actually met between VAT-registered construction businesses - never on a householder bill. See domestic reverse charge.

Copy-paste decking invoice fields

Use these as a checklist when you raise the PDF or app invoice.

For the first invoice habit and field checklist, see how to invoice a client UK tradesperson. For deposits before ordering composite or glass, see the deposit invoice template.

Sole trader versus limited company

Do not invent a Ltd presentation if you are still a sole trader. Do not omit the company number on Ltd invoices when customers and accounts teams expect it.

Labour versus materials for decking CIS

On a householder invoice the split is courtesy and clarity. On a contractor invoice it is the CIS calculation. Start with the gross, take off VAT, then take off the direct cost of materials you paid for. What is left is broadly the CIS base at 20%, 30% or 0% after verification.

Two habits cost money: one lump "decking £8,000" (CIS on the boards as well if you are under CIS) and stuffing mark-up into materials so CIS looks smaller. Composite boards purchased as a complete system are usually materials at purchase cost; labour is the install. Free-issue timber is not your material.

What decking job types to describe

Deposits and stages for multi-day decking jobs

A Saturday board of a tiny landing can be one invoice. A raised composite deck with glass balustrades is not.

1. Deposit: before you order composite boards, glass balustrades or specialist hardwood. Invoice when you take it and state the percentage or fixed sum. See deposit invoice template. 2. Posts / substructure: pads or ground screws in, posts and joists complete, ready for board. 3. Board / practical completion: boards down, balustrades and stairs complete, agreed snags closed, balance less any agreed retention, plus variations approved in writing.

Retention is not a deposit. Deposit is money you take before or during. Retention is money held after completion against snagging. Show full value, retention withheld and release date, then invoice retention when it falls due. A deposit you receive is a VAT tax point for that amount on the day it lands if you are registered.

CIS: why decks and outdoor structures are often within the scheme

For contractor-paid work, start with CISR14100: construction, alteration, repair or extension of buildings or structures, including structures on foundations. A deck on concrete pads, ground screws or piled foundations is structurally real - do not assume "garden furniture" just because it sits outdoors. When the deck is part of a wider site finishing or preparatory package, CISR14240 may also sit in the analysis.

Rates after verification: 20% if registered net, 30% if not verified, 0% with gross payment status. Show UTR, labour, materials, rate, deduction and net payable. That printout is not a CIS300 - the contractor files it. InvoiceAdept does not file CIS300.

Deemed contractors (non-construction businesses) use a construction-spend test of more than £3 million in the 12 months since the first payment - not a £1 million myth. Mainstream construction businesses register when they pay subcontractors for construction work. See GOV.UK CIS.

VAT on ordinary decking at existing homes

If you are not VAT-registered, do not charge VAT. If you are registered, an ordinary timber or composite deck at an occupied existing dwelling is usually standard-rated 20%. Soften absolute Notice 708 claims; reduced or zero rates are narrow. Design fees and survey fees are usually standard-rated.

Never tell a householder their deck is "VAT free" because it is outdoor living space. Never reverse-charge a private individual.

New builds, conversions, empty homes and decking packages

New-build plots, empty homes and certain conversions can change the VAT analysis under Notice 708. Soften absolute claims on this page. If your package is decking as part of a developer's plot external works, get the VAT treatment confirmed for that contract - do not copy a blog rate onto a new-build schedule without checking. CIS can still apply when a contractor pays you, even when VAT is reduced or zero on some lines. Zero-rated or reduced-rated lines still need correct descriptions; reverse charge does not apply to zero-rated supplies in the usual analysis.

Domestic reverse charge for contractor-paid decking

Domestic reverse charge is a VAT rule between eligible VAT-registered construction businesses. It is not CIS and it is not a householder rule. When it applies, you show VAT but the customer accounts for it - you do not collect the VAT as cash on that invoice. Full pattern: domestic reverse charge invoice UK. If the customer is a private householder, reverse charge does not apply.

Worked examples A-D

Figures are illustrative arithmetic only, not quotes, not UK average prices, and not a price list.

Example A - Householder low-level softwood deck (no CIS)

Example B - Householder raised composite with glass balustrade (deposit + stages)

Example C - Contractor-paid deck package (verified 20% CIS)

ILLUSTRATIVE only. Verified subcontractor at 20%. Treat figures as VAT-exclusive for clarity.

Do not claim free-issue boards as materials. Do not shrink labour by stuffing mark-up into materials.

Example D - Materials-only delivery (no install)

Mistakes that bounce decking invoices

Late payment: contractor debts are not consumer debts

Checked on 7 September 2026: Bank of England Bank Rate is 3.75% (held 30 July 2026; next MPC decision due 17 September 2026). For eligible business-to-business debts, statutory interest under the Late Payment of Commercial Debts framework is Bank Rate + 8% - currently 11.75% simple interest - plus fixed compensation of £40 / £70 / £100 per late invoice depending on debt size. Use the six-month reference date rule (rate in force on the preceding 31 December or 30 June). This statutory route does not automatically apply to private homeowners. See sister late-payment guides on InvoiceAdept and GOV.UK late commercial payments. InvoiceAdept does not file Money Claim Online or court claims.

How InvoiceAdept fits a decking contractor

Operator: Tech Me Today Ltd, Companies House 15917255, ICO ZB944663. Start from the invoice generator or pricing.

FAQ

What should a UK decking invoice include?

Legal names and addresses, a unique number, dates, a description that names the site address, deck size, board type, foundation method and stage, quantities and rates, a due date and a way to pay. Split labour and materials on contractor jobs. VAT only if registered and reverse charge does not apply. UTR and CIS only under a contractor, and only when CIS actually applies.

Do decking installers need a CIS invoice?

Only when a contractor is paying you for construction operations. A deck on foundations / pads / ground screws as a structure is often in scope under CISR14100 when contractor-paid. A homeowner job you sold yourself: no CIS.

How do CIS deductions work on boards, joists and balustrades?

CIS is on the labour / CIS base. Boards, joists, ground screws and balustrade kits you paid for come off as materials at direct cost when evidenced. Rates are 20% verified, 30% unverified, 0% gross payment status. Mark-up is not a material. Free-issue is not your material.

Do I charge 0% VAT on a garden deck?

Usually no on an occupied existing dwelling. Ordinary timber or composite decks are typically standard-rated 20% if you are VAT-registered. Soften Notice 708 edge cases; do not invent 0% for outdoor living space.

Should I take a deposit on composite or glass balustrade decks?

If your terms require it, yes - before you order. Raise a numbered deposit invoice and credit it on later stages.

Is a patio the same as a deck for invoicing?

No. Patios are typically paved hard landscaping (patio invoice template). Decks are boarded timber/composite structures on joists. Keep the descriptions separate even when both sit in one garden redesign.

Does InvoiceAdept file CIS, VAT or Making Tax Digital to HMRC?

No. It raises the invoice, stores the record and on Pro+ prints CIS lines. It does not file CIS300, VAT returns or MTD quarterly updates.

What is the VAT registration threshold?

£90,000. Not £85,000.

What is the deemed CIS contractor construction-spend test?

More than £3 million on construction in the 12 months since the first payment for non-construction businesses - not £1 million. Mainstream construction contractors register when they pay subcontractors for construction work.

Can I reverse-charge a householder for a deck?

No.

What payment terms should I use?

A practical residential default is 14 days from invoice date with a calendar due date. Commercial jobs follow the PO or contract. Put terms on the quote and the invoice.

Do I need Building Control on the invoice?

You can narrate that Building Control or warranty steps apply where relevant, but the invoice is not the completion certificate. Do not sell the PDF as statutory sign-off.

How should I invoice deck lighting?

If lighting is in your package, show it as a clear line (labour and fittings). If an electrician invoices separately, do not pretend your deck invoice includes their whole electrical certificate package unless it does.

What if the main contractor free-issues the composite boards?

Invoice labour (and any materials you actually bought). Do not list free-issue boards as your materials for CIS.

Sole trader or limited company - does the template change?

Yes for the name block (personal name vs registered company name and number). CIS and VAT rules still follow the facts of the job and registration, not the template title.

Quote versus invoice on decking packages

A quote is the offer. An invoice is the request for payment for work done or a deposit due. Do not send a quote PDF labelled as an invoice when you want payment - accounts teams and householders need an invoice number, a due date and a tax point.

If the householder asks for a "receipt" after card payment, you can mark the invoice paid or issue a payment receipt - that is not a substitute for keeping the numbered invoice in your records.

Building Control, planning and Party Wall - the invoice is not a certificate

Elevated decks, balustrades near boundaries, and decks affecting neighbouring excavations can trigger Building Regulations, planning or Party Wall processes depending on height, location and design. Soften absolute claims here - local practice and the facts of the structure matter.

Keep certificates, award documents and guarantee paperwork as separate attachments - the same habit as attaching a gas safety record to a boiler invoice rather than pretending the invoice is the record.

Variations that commonly appear on deck jobs

Price extras in writing before you build them. Then invoice them as coded variations so a dispute on one stair flight does not freeze the whole package.

Retention on contractor deck packages

Some main-contractor packages hold a retention percentage until a defects date. If retention applies:

• Show the full stage value, the retention withheld, and the net payable now

• Diary the release date and raise a retention release invoice when due

• Do not call retention a deposit

• Do not assume householder jobs use retention - most do not

How to describe board products without sounding like a brochure

You do not need marketing copy. You need identifiers a QS can match to the quote.

Snagging and practical completion on decks

Agree what "done" means before you ask for the final balance: boards complete, balustrades secure, stairs safe, stain/oil if included, site left tidy, agreed snags listed. Photograph completion. If a snag list remains, either hold a small agreed amount against those items or finish them before the final invoice - do not surprise a householder with a full balance while the gate still binds.

Checklist before you hit send

• Unique invoice number and calendar due date

• Correct legal customer (householder vs contractor Ltd name)

• Site address and PO/plot if commercial

• Deck size, board type, foundation method, balustrade, stage

• Deposit credits shown with prior invoice numbers

• Labour/materials split if CIS applies

• No CIS and no reverse charge on private householders

• VAT treatment matches registration and Notice 708 facts

• Bank details and/or card link

• UTR and CIS block only when required

• Building Control / planning narrative not sold as a certificate

More worked detail: CIS materials evidence

When a contractor challenges your materials line, tickets win. Keep merchant invoices for boards, joists, ground screws and balustrade kits matched to the job address or PO. Round "about £3,000 materials" without evidence is how estimated deductions go against you. Van stock used on the job can sit in materials if you can show what it cost; guessing a round figure is weak.

More worked detail: householder communication channel

Domestic deck jobs are often sold in WhatsApp or email threads with photos of the garden. Put the invoice in that same thread and keep the PDF numbered. Contractors still need email to accounts with the PO. Do not rely on a verbal "pay when you can" after a five-figure composite order.

About this guide

Written by InvoiceAdept Editorial for UK decking specialists, carpenters, builders and subcontractors. Last reviewed 7 September 2026 against GOV.UK CIS pages (including CISR14100, CISR14220, CISR14240, CISR14020/14030, CISR15060/15090), VAT Notice 708 guidance, VAT registration thresholds (£90,000), and Bank of England Bank Rate (3.75%, held 30 July 2026, next MPC 17 September 2026).

InvoiceAdept is invoicing software from Tech Me Today Ltd, Companies House 15917255, ICO ZB944663. Free: five invoices/month. Pro: £7.99 excl VAT. Pro+: £12.99 excl VAT with CIS lines. Stripe UK card fees apply; InvoiceAdept adds no platform fee. InvoiceAdept does not decide CIS or VAT status and does not file CIS300, VAT returns, Making Tax Digital updates or Self Assessment.

Figures in examples are illustrative only. This is general information, not tax, legal, Building Regulations, Party Wall or planning advice.