Insulation invoice template UK (2026): pipe, tank, floor, CIS and VAT Notice 708/6

A general insulation invoice has to explain what was lagged, jacketed, laid under floors, made good and handed over - not a vague "insulation fitted" or "energy works as agreed" line. "Supply and install insulation" does not tell a householder whether they received pipe lagging on hot and cold runs, a hot-water cylinder / tank jacket, underfloor or between-joist floor insulation, draught-proofing narrative, waste removal, or a multi-measure package that also touches loft or cavity work handled on a sister invoice. It does not tell a main contractor's QS which plot, purchase order or fabric package to release. It does not tell a CIS contractor how much is labour and how much is the direct cost of lagging, jackets, boards, quilts, membranes, tapes and fixings you paid for.

This page is the general insulation money page for UK installers whose day job is pipe lagging, cylinder jackets, floor / underfloor insulation, solid-wall contrast notes and multi-measure packages. It deliberately differs from the already-live sister guides:

• Loft insulation invoice template UK - cold loft / warm roof / blown loft lays

• Cavity wall insulation invoice template UK - bead / mineral wool / foam cavity fill

Do not republish loft or cavity content here. Cross-link them when a package includes loft or cavity as a separate measure. Mentions of heat pump, solar panel, plasterer and render are contrasts and cross-links - the subject here is general insulation (pipes, tanks, floors, multi-measure) with the CIS and VAT Notice 708/6 narrative that make the invoice readable.

Who pays matters. Billing a private householder for insulation on their own home: normal invoice, no CIS. Billing a main contractor, developer, housing association principal or refurbishment contractor for fitting thermal insulation / lagging: often CIS when the work sits inside a wider construction / alteration package. HMRC's CISR14240 is the lead reference: fitting of thermal insulation, lagging or soundproofing as part of a wider project of construction is within CIS; fitting in premises not undergoing construction where this has no effect on the fabric of the building is outside. Soften absolute claims - the facts matter. Supply-only materials sit outside under CISR14220; supply-plus-install can pull the whole payment into CIS (CISR14020 / CISR14030). Private householders are not CIS contractors - see CISR12030 and the public CIS overview.

VAT is closer to the loft, cavity, heat pump and solar guides than to ordinary fabric pages. For qualifying residential (and relevant charitable) installs of energy-saving materials, VAT Notice 708/6 lists insulation types including insulation for walls, floors, ceilings, lofts, pipes and water tanks. The notice sets a zero rate from 1 May 2023 to 31 March 2027 when conditions are met (then toward 5% from 1 April 2027 - check the live notice nearer the time). Soften: notice conditions must be met; InvoiceAdept does not decide VAT status. Caution single vs mixed supplies (notice section 2.5) - for example an extension package where insulation is only incidental. Supply without install is usually standard-rated. Never invent 0% for commercial, hospital or hotel installs outside scope. Never reverse-charge a householder. Domestic reverse charge does not apply to zero-rated supplies.

This guide gives copy-paste fields, a labour/materials split for general insulation packages (including deposits before ordering lagging, jackets and floor boards), stages from survey through fit and snag/handover, five worked examples and a practical treatment of CIS, VAT Notice 708/6 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 certificates, PAS / TrustMark paperwork, ECO4 or Great British Insulation Scheme (GBIS) grant forms, or CIGA certificates.

Related templates: loft insulation, cavity wall, heat pump, solar panel, how to invoice a client, retention payments, deposit invoice, domestic reverse charge, late payment rights, plasterer and render.

Rules and links were checked for this guide on 9 September 2026. General information only, not tax, legal, Building Regulations, grant or install certification advice. InvoiceAdept is from Tech Me Today Ltd, Companies House 15917255, ICO ZB944663.

In short

Start by identifying who pays you, which product you are fitting (pipe lagging, cylinder / tank jacket, underfloor / floor insulation, multi-measure package), whether materials must be ordered before work starts, whether the contract is supply-only or supply-and-install, and whether loft or cavity measures belong on their own sister invoices.

Private householder, own-home insulation: no CIS. If VAT-registered and the install qualifies under Notice 708/6, the zero rate can apply from 1 May 2023 to 31 March 2027 when conditions are met - then check the live notice (framework points toward 5% from 1 April 2027). Show product type, locations (rooms / pipe runs / cylinder), coverage narrative, waste and snag. Never invent commercial 0%. Never reverse-charge a householder.

Insulation for a CIS contractor: often within CIS for fitting of thermal insulation / lagging as part of a wider project of construction (CISR14240). Soften where premises are not undergoing construction and there is no fabric effect. Split labour from materials at direct cost (CISR15060 / CISR15090).

Materials only (no install): generally outside CIS (CISR14220). Supply-plus-install can pull the whole contract into CIS (CISR14020 / CISR14030).

VAT zero rate (Notice 708/6): only when residential/charitable conditions are met, to 31 March 2027. Supply-only is usually standard-rated. Reverse charge does not apply to zero-rated supplies. Watch mixed supplies (section 2.5).

Grants (ECO4 / GBIS): check live scheme rules; do not invent grant amounts. The invoice is not the grant form. InvoiceAdept does not issue ECO4, GBIS, TrustMark or CIGA paperwork.

Take a deposit before ordering large material volumes if your terms require one. Stage survey/prep, fit and snag/handover. Keep loft and cavity sister measures on their own invoices when the package is multi-measure. Keep variations separate.

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 insulation invoice template is for

This template is for UK insulation installers and subcontractors whose work centres on pipe lagging, hot-water cylinder / tank jackets, underfloor and floor insulation, and multi-measure energy packages - plus fabric builders who need readable invoice lines for those products. It covers the paperwork pattern, not a price list and not a Building Control, TrustMark, ECO4, GBIS or CIGA document.

• Pipe lagging installers (hot / cold pipe runs, plant rooms, underfloor voids)

• Cylinder / tank jacket fitters (hot-water cylinders, tanks where Notice 708/6 scope is relevant)

• Underfloor / floor insulation installers (between joists, over solid floors, underfloor heating insulation boards when that is your defined product)

• Multi-measure insulation firms who also arrange loft or cavity work but invoice those on sister pages

• Builders and developers who include pipe, tank and floor insulation on new plots or refurbs

• Heat pump and solar panel firms who add pipe lagging or cylinder jackets as package lines

• Plasterers and render trades only when making-good or solid-wall contrast notes sit beside insulation lines - not as a substitute for dedicated loft or cavity guides

• Subcontractors to main contractors on residential fabric / energy packages

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

If your day job is a dedicated cold loft / warm roof lay, use the loft insulation guide. If the defined product is cavity fill (bead / wool / foam), use the cavity wall guide. Come back here for pipe, tank, floor and multi-measure invoice lines.

How this differs from loft, cavity, heat pump and solar guides

Do not duplicate an entire loft or cavity guide here. Mentions of loft quilts or cavity beads are cross-links and package contrasts only - keep dedicated loft and cavity measures on their sister invoices when you can.

Three insulation jobs, three invoices

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

A main contractor can be the CIS contractor even when the finished insulation 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.

Product types: pipe lagging, tank jackets, floor insulation and multi-measure

Name the product so a QS, householder or future surveyor can see what was actually installed. Notice 708/6 lists insulation for walls, floors, ceilings, lofts, pipes and water tanks among energy-saving materials - use that list for scope narrative, not as a promise that every line is automatically zero-rated.

What insulation work belongs on the invoice

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

The invoice is not a Building Control certificate, not an ECO4 / GBIS form and not a CIGA certificate. Describe caveats; do not certify what you are not authorised to certify.

What a UK insulation 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, product type, locations / coverage, 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 (including 0% with the right narrative when Notice 708/6 applies), 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 an insulation invoice, a clear description is what gets you paid, so name the site address, product types, locations or coverage and stage (deposit / prep / fit / 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 on standard-rated supplies - never on a householder bill, and not on zero-rated Notice 708/6 lines. See domestic reverse charge.

Copy-paste insulation invoice fields

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

Sole trader versus limited company

Do not invoice as "Ali Insulation" without the legal entity that actually contracted. Card payments and CIS statements get messy when the name on the invoice is not the payee.

Labour versus materials for insulation CIS

When CIS applies, split lines so deduction sits on the right base.

Tickets win disputes. Keep merchant invoices matched to the job address or PO.

What insulation job types to describe

Deposits and stages for multi-day insulation jobs

Many pipe-lagging and jacket jobs finish in a day; larger multi-measure packages, underfloor lays across several rooms and multi-plot contractor packages often need stages.

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 - apply the correct rate (including 0% when Notice 708/6 genuinely applies to that supply).

See the deposit invoice template for deposit-only PDFs. For retention mechanics on contractor packages, see calculate retention payments.

CIS: thermal insulation and lagging under CISR14240 (and related refs)

For contractor-paid work, start with CISR14240: finishing operations include fitting of thermal insulation, lagging or soundproofing as part of a wider project of construction. Soften absolute claims - the facts of the contract matter. Lagging is named in the manual language, which is why pipe lagging and tank jackets sit naturally on this page rather than only on loft or cavity siblings.

The same manual also lists as outside construction operations: fitting of thermal insulation or soundproofing in premises not undergoing construction where this has no effect on the fabric of the building. That is why a stand-alone soft install with no wider construction / alteration package needs careful testing - do not auto-CIS every insulation invoice without reading the facts.

Materials at direct cost: CISR15060 / CISR15090. Who is not a contractor: householder context under the public CIS guide and CISR12030.

Deemed CIS contractor construction-spend test for non-construction businesses: more than £3 million (not £1 million) - check live HMRC guidance when that edge case matters.

VAT Notice 708/6: zero rate for qualifying insulation (pipes, tanks, floors)

This is the section that differs most from ordinary fabric trade pages and aligns with the loft, cavity, heat pump and solar panel guides. Read it slowly.

Under VAT Notice 708/6, installation of certain energy-saving materials - including insulation for walls, floors, ceilings, lofts, pipes and water tanks - in residential accommodation (and relevant charitable buildings under the notice) can be zero-rated from 1 May 2023 to 31 March 2027 when notice conditions are met. From 1 April 2027 the framework points back toward the 5% reduced rate - check the live notice nearer the time. Soften: InvoiceAdept does not decide whether your supply qualifies.

• Use the notice list to scope general insulation products on this page (pipes, tanks, floors) while loft and cavity keep their dedicated sister guides.

• Caution single vs mixed supplies (section 2.5): if insulation is only incidental to a principal standard-rated supply (for example a house extension sold as one package), the single-supply analysis can keep the package at the principal rate - do not force 0% by renaming the job.

• Supply without installation is usually standard-rated.

• Never invent 0% for commercial warehouses, hotels or hospitals outside residential/charitable scope.

• Never reverse-charge a householder.

• Domestic reverse charge does not apply to zero-rated supplies.

• Do not stretch decorative render or cladding into ESM insulation zero-rating.

Never tell a commercial client their warehouse plant-room lagging is "VAT free because insulation is zero-rated" without checking scope. Never reverse-charge a private individual.

ECO4, GBIS and other grants - check scheme rules

Energy-efficiency schemes such as ECO4 and the Great British Insulation Scheme (GBIS) change. Soften absolute claims. This guide does not invent grant amounts, income thresholds or measure scores. If a specific scheme contribution is a factual part of how that job is paid, you may narrate a scheme reference on client paperwork - but:

• Do not invent market-wide "typical ECO4 £" figures on the invoice or in this article

• Do not treat the invoice as the grant application or measure evidence

• Do not delay your due date to "when the grant pays" unless your written terms say so

• Check live scheme rules on official publications when you need numbers

InvoiceAdept does not issue ECO4, GBIS, TrustMark, PAS or CIGA paperwork.

Supply-only versus supply-and-install

Domestic reverse charge note for contractor-paid insulation

Critical for insulation: if your residential install is correctly zero-rated under Notice 708/6, domestic reverse charge does not apply to that zero-rated supply. If the customer is a private householder, reverse charge does not apply anyway. Reverse charge only becomes relevant between eligible VAT-registered construction businesses on standard-rated supplies that meet the reverse-charge tests - for example some commercial or otherwise non-zero-rated contractor chains. See the domestic reverse charge guide. Soften and test facts; InvoiceAdept does not decide reverse-charge status.

Worked examples A-E

Example A - Householder pipe lagging and cylinder jacket (no CIS, Notice 708/6 zero rate)

ILLUSTRATIVE. Assumes VAT-registered installer and a qualifying residential install meeting Notice 708/6 conditions within the 1 May 2023 to 31 March 2027 window.

Example B - Householder underfloor insulation with deposit and stages (no CIS)

ILLUSTRATIVE. Householder; stages; VAT shown as 0% only as an illustrative Notice 708/6 assumption for a qualifying residential install.

Example C - Contractor-paid multi-measure insulation on refurb plots (verified 20% CIS)

ILLUSTRATIVE only. Verified subcontractor at 20%. Treat figures as VAT-exclusive for clarity. Assumes fitting of thermal insulation / lagging as part of a wider project of construction (CISR14240 in scope), not a soft out-of-scope scenario with no fabric effect. Loft and cavity measures billed on sister invoices.

Do not claim free-issue materials as yours. Soften VAT on the contractor invoice separately - residential qualifying zero rate, commercial standard rate, or reverse charge only where tests are met on standard-rated lines. Point loft and cavity sister work to loft and cavity invoices.

Example D - Materials-only delivery (no install)

ILLUSTRATIVE. Supply of pipe lagging, cylinder jackets and underfloor boards delivered to site; no fitting labour.

If install is later added under the same contract, revisit mixed-contract rules (CISR14020 / CISR14030) and VAT Notice 708/6 before the next invoice.

Example E - Soft out-of-scope caution (premises not undergoing construction, no fabric effect)

ILLUSTRATIVE narrative only - not a rate promise. CISR14240 lists fitting of thermal insulation or soundproofing in premises not undergoing construction where this has no effect on the fabric of the building as outside construction operations. Soften: many floor insulation and fabric-touching jobs will still affect fabric or sit inside wider construction. Do not auto-apply the soft-out. Test facts; InvoiceAdept does not decide CIS status.

Mistakes that bounce insulation invoices

Late payment: contractor debts are not consumer debts

Commercial late payment interest for qualifying business debts sits on Bank Rate plus 8%. With Bank Rate at 3.75% (held; next MPC 17 September 2026), statutory interest is 11.75% where the Late Payment of Commercial Debts rules apply. Soften: consumer householder contracts are different - do not paste commercial statutory interest onto every domestic invoice without checking your terms and the consumer regime. Put clear due dates on every invoice. See late payment rights.

How InvoiceAdept fits an insulation installer

InvoiceAdept is built for UK trades invoicing - including insulation and fabric packages - not for filing tax returns.

Stripe processes card links (UK cards typically 1.5%+20p). InvoiceAdept adds no platform fee on top of Stripe. InvoiceAdept does not file CIS300, VAT returns, Making Tax Digital updates or Self Assessment. It does not issue Building Control certificates, ECO4 / GBIS forms, TrustMark evidence or CIGA certificates.

For the broader how-to pattern, see how to invoice a client.

FAQ

What should a UK insulation invoice include?

Legal names and addresses, a unique number, dates, a description that names the site address, product type (pipe lagging, cylinder jacket, floor insulation, multi-measure), locations or coverage, stage, quantities and rates, a due date and a way to pay. Split labour and materials on contractor jobs. VAT only if registered - including 0% with Notice 708/6 narrative when that genuinely applies. UTR and CIS only under a contractor, and only when CIS actually applies.

Do insulation installers need a CIS invoice?

Only when a contractor is paying you for construction operations that are in scope. Lead with CISR14240 for fitting thermal insulation / lagging as part of a wider construction project. A homeowner job you sold yourself: no CIS. Soften where premises are not undergoing construction and the work has no fabric effect.

How do CIS deductions work on lagging, jackets and floor boards?

When CIS applies, deduction usually sits on labour. Materials you bought at direct cost are typically excluded from the deduction base - CISR15060 / CISR15090. Keep tickets. Do not list free-issue materials as yours.

Do I charge 0% VAT on every insulation job?

No. Qualifying residential (and relevant charitable) installs can be zero-rated under Notice 708/6 from 1 May 2023 to 31 March 2027 when conditions are met. Supply without install is usually standard-rated. Commercial installs outside scope should not be forced to 0%. Watch mixed supplies (section 2.5). InvoiceAdept does not decide VAT status.

Should I take a deposit before ordering insulation materials?

If your terms require it, yes - before you order large volumes of lagging, jackets or floor boards. Raise a numbered deposit invoice and credit it on later stages. See the deposit invoice template.

How should I invoice a multi-measure package that includes loft or cavity?

Itemise pipe, tank and floor lines on this invoice. Put dedicated loft and cavity measures on the loft and cavity wall sister invoices when practical, and cross-reference. Do not merge everything into one "energy package" blob.

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. It does not issue Building Control certificates, ECO4 / GBIS forms, TrustMark evidence or CIGA certificates.

What is the VAT registration threshold?

£90,000. Not £85,000. Do not present £88,000 as the current registration threshold.

What is the deemed CIS contractor construction-spend test?

More than £3 million on construction in the relevant period 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 insulation?

No. And reverse charge does not apply to zero-rated Notice 708/6 supplies either.

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.

Can I put ECO4 or GBIS grant amounts on the invoice?

Only if a specific grant or scheme contribution is a factual part of how that job is paid, and even then keep invented market-wide grant figures off the page. Check live scheme rules when you need numbers. The invoice is still not the grant form.

What if the main contractor free-issues the lagging or boards?

Invoice labour (and any materials you actually bought). Do not list free-issue lagging, jackets or 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.

Is pipe lagging or a cylinder jacket zero-rated?

Soften. Notice 708/6 lists insulation for pipes and water tanks among energy-saving materials. Qualifying residential (and relevant charitable) installs can be zero-rated from 1 May 2023 to 31 March 2027 when conditions are met. Supply without install is usually standard-rated. Test facts; InvoiceAdept does not decide.

How does solid-wall insulation relate to this page?

This page can carry a short contrast note when solid-wall work sits beside pipe / tank / floor measures. Do not treat decorative render as automatically ESM-zero-rated - see the render guide - and do not pretend this page replaces a dedicated solid-wall / EWI guide.

Pro versus Free - which plan for insulation subcontractors?

Free is £0 for five invoices per month - useful for a small householder pipeline. Pro at £7.99 excl VAT suits growing volume and WhatsApp send. Pro+ at £12.99 excl VAT adds CIS lines for contractor packages. Stripe UK cards 1.5%+20p still apply on card links.

Quote versus invoice on insulation 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. See also how to invoice a client.

Building Control, TrustMark and certificates - the invoice is not a certificate

Insulation jobs can sit alongside Building Regulations notes, competent-person scheme paperwork, TrustMark / PAS evidence for grant routes, and CIGA paperwork where cavity work is involved on a sister invoice. Soften absolute claims - scheme rules change, and grant amounts should be checked on current official publications rather than copied from a blog.

Variations that commonly appear on insulation jobs

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

Retention, credit notes and variation orders

Use the right tool for the adjustment:

Some main-contractor fabric 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 insulation without sounding like a brochure

You do not need marketing copy. You need identifiers a QS can match to the quote: product family (pipe lagging / cylinder jacket / underfloor quilt or board), locations or coverage, multi-measure itemisation, sister loft / cavity cross-references when relevant, and waste removal. Avoid brochure phrases with no product identity, silent coverage on contractor bills, dumping loft and cavity into a mystery "energy package", unlimited performance claims, and selling the PDF as Building Control, ECO4 or CIGA certification.

Snagging and practical completion on insulation jobs

Agree what "done" means before you ask for the final balance: lagging complete on named runs, jacket fitted, floor insulation laid to agreed coverage, making-good closed if included, areas left tidy, agreed snags listed. Photograph completion and keep any grant or sister-measure records separate from the invoice. 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 old lagging bags are still in the hallway.

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

• Product types (pipe / tank / floor / multi-measure), locations/coverage, stage

• Loft / cavity sister measures cross-linked, not dumped into a mystery line

• Deposit credits shown with prior invoice numbers

• Labour/materials split if CIS applies

• No CIS and no reverse charge on private householders

• CIS tested against CISR14240 (wider construction vs soft out-of-scope) when contractor-paid

• VAT treatment matches registration and Notice 708/6 facts (0% only when qualifying; watch s2.5 mixed supplies)

• No invented 0% on commercial out-of-scope jobs

• No invented ECO4 / GBIS £ amounts

• Bank details and/or card link

• UTR and CIS block only when required

• Building Control / grant / CIGA narrative not sold as a certificate

• Stripe UK cards 1.5%+20p if using card links; no InvoiceAdept platform fee

• VAT threshold cited as £90,000 (warn that £85,000 content is outdated)

When a contractor challenges your materials line, tickets win. Keep merchant or supplier invoices for lagging, jackets, quilts, boards, membranes, tapes and fixings matched to the job address or PO. Round "about £800 materials" without evidence is how estimated deductions go against you.

Domestic insulation jobs are often sold in WhatsApp or email threads with photos of pipe runs, cylinders and floor voids. 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 the grant comes through" after a materials order - grant timing is not your invoice due date unless your written terms say so. Cross-link loft, cavity, heat pump or solar panel when the same client is also buying those packages. For making-good after access openings, see the plasterer guide; for external finishes contrasted with solid-wall notes, see the render guide.

About this guide

Written by InvoiceAdept Editorial for UK insulation installers, lagging specialists, floor-insulation subcontractors, fabric builders and energy-efficiency firms. Last reviewed 9 September 2026 against GOV.UK CIS pages (CISR14240 as the lead thermal-insulation / lagging finishing reference; CISR14220; CISR14020/14030; CISR15060/15090; CISR14100 briefly; CISR12030 / public CIS on who is not a contractor), VAT Notice 708/6 (zero rate for qualifying residential/charitable ESM including insulation for walls, floors, ceilings, lofts, pipes and water tanks from 1 May 2023 to 31 March 2027, then toward 5% from 1 April 2027; section 2.5 mixed-supply caution), VAT registration threshold £90,000, and Bank Rate 3.75% (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 (UK cards 1.5%+20p); 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. It does not issue Building Control certificates, ECO4 / GBIS grant forms, TrustMark / PAS evidence or CIGA certificates.

Figures in examples are illustrative only. Grant amounts and insulation market statistics are not invented here - check current official sources. This is general information, not tax, legal, Building Regulations, grant or install certification advice.

Related guides

• Loft insulation invoice template UK

• Cavity wall insulation invoice template UK

• Heat pump invoice template UK

• Solar panel invoice template UK

• How to invoice a client (UK tradesperson)

• Calculate retention payments (construction UK)

• Deposit invoice template UK

• Domestic reverse charge invoice UK

• Late payment rights UK tradespeople

• Plasterer invoice template UK

• Render invoice template UK