Plumber quotes and invoices — from the van.

60 seconds for a quote on the doorstep. Boiler swap, leak, bathroom rip-out. CIS Reverse Charge wording stamped automatically, Gas Safe number on the PDF, MTD-live since 6 April 2026. £8.49/mo flat, no per-user cost.

[ Try free → ]

Built for plumbers, not for accountants.

Gas Safe number on every quote

Drop your Gas Safe Register number into your profile once. It prints on every quote and every invoice — boiler swap, unvented cylinder, gas hob change-over — the way the homeowner expects to see it before they hand over the deposit. No template to retype.

CIS Reverse Charge — stamped, not typed

Tick "subcontractor" on the client card and MarginTap stamps the invoice with the HMRC wording "Reverse charge: Customer to pay the VAT to HMRC", shows the VAT due without collecting it, and feeds the record into MTD. HMRC enforcement stepped up after Autumn Budget 2025 — the wording is now evidence, not best practice.

MTD-live since 6 April 2026

Every quote, invoice and expense becomes a digital record HMRC will accept for the quarterly update. Live for sole traders over £50,000 since 6 April 2026, £30,000 from April 2027, £20,000 from April 2028. No catch-up panic, no spreadsheet bodge.

Plumbers — your questions

Boiler swap deposit on the doorstep — can MarginTap handle it?
Yes. Build the quote in the customer's hallway with line items for the boiler, the flue kit, the labour and the system flush. Get a digital signature on the spot, take the deposit by card or bank transfer, and the rest of the balance invoices in one tap when the job's signed off.
Is MarginTap MTD-compliant now the deadline's gone?
Yes. MarginTap keeps the digital records HMRC's Making Tax Digital for Income Tax requires, live since 6 April 2026 for sole traders earning over £50,000. The threshold drops to £30,000 in April 2027 and £20,000 in April 2028. CIS is folded into MTD ITSA — quarterly digital submissions, not monthly paper.
Does MarginTap handle CIS Domestic Reverse Charge VAT for subcontractor plumbing?
Yes. If you're a VAT-registered subcontractor on CIS work, MarginTap auto-stamps the invoice with the HMRC wording "Reverse charge: Customer to pay the VAT to HMRC", shows the VAT due without collecting it, and feeds the records into the MTD quarterly digital submissions required from April 2026.
Can I reference Water Regs 1999 or a Gas Safe Notice on the quote?
Yes. Drop the reference into the line description or the quote footnote — "installation in line with the Water Supply (Water Fittings) Regulations 1999" or the Gas Safe Notice number. MarginTap keeps the text intact when the quote converts to an invoice, so the audit trail survives the signature.
Leak at 10pm — can I write a quote with no signal in a basement boiler room?
Yes. Pick the items from your schedule of rates — circulator, compression elbow, system flush — the homeowner signs on the screen, and the PDF queues locally. When the 4G comes back outside the building, MarginTap sends the quote and invoice to the customer and to your accountant.
Why £8.49/mo when Powered Now is £28+VAT and Tradify is £34+VAT per user?
Because MarginTap does one thing properly: quotes and invoices for the sole trader. No team diary, no parts stock, no certificate engine you'll never open. £8.49 a month flat, VAT included, free trial with no card — roughly a quarter of Powered Now's cheapest seat and one-fifth of a Tradify Lite licence.
SHEET 06 · PRICING

The receipt.

Two tiers. No "Contact Sales". No annual lock-in. No per-user pricing, ever. Cancel from the app.

MarginTap
RECEIPT · NO. 0001
TIER · FREE

£0.00

— PER MONTH · FOREVER
  • ✓Quotes & invoices5/mo
  • ✓PDF exportincl.
  • ✓1 userincl.
  • ✓EN · PL · DEincl.
  • —Client CRMPRO
  • —Recurring invoicesPRO
Subtotal£0.00
VAT£0.00
TOTAL£0.00
[ START FREE → ]
MarginTap PRO
RECEIPT · NO. 0042
TIER · PRO
PAID

£8.49

— PER MONTH · UNLIMITED
  • ✓Quotes & invoicesunlimited
  • ✓PDF + email + WhatsAppincl.
  • ✓Client CRM & balancesincl.
  • ✓EN · PL · DE on one jobincl.
  • ✓Recurring invoicesincl.
  • ✓Schedule of rates libraryincl.
  • ✓MTD-compliant VAT exportsincl.
Subtotal£7.08
VAT 20%£1.41
TOTAL£8.49
[ GO PRO → ]

// 14-DAY FREE TRIAL OF PRO · NO CARD TO START · CANCEL FROM THE APP · MTD-LIVE SINCE 6 APRIL 2026

SHEET 08 · EARLY ACCESS

Get early access for £4.49/month for life.

No countdown timer. No "only 7 spots left". Just: we ship in autumn, and the first tradesmen on the list pay half forever.

// WE WON'T EMAIL YOU UNTIL WE HAVE SOMETHING WORTH OPENING.

Tradesman in workwear in his van at sunset, sending a quote on his phone, folded high-vis on the seat.