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HMRC-compliant
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Free invoicing for UK plumbers

Plumbers · WhatsApp Invoicing · TaskDrop

Free invoice app
for UK
Plumbers

Send professional, HMRC-compliant invoices from WhatsApp in under 60 seconds. No app to download, no login, no laptop. Tap a button, send a voice note, or snap a photo of a job sheet — TaskDrop handles the rest.

Start free, forever See how pricing works

No card needed · No subscription · 60 seconds to set up · CIS supported

How it works

Three steps. Sixty seconds.

Most plumbers are still doing invoices on the laptop at 10pm, or writing them by hand and photographing them. Both approaches are slow and mean you're leaving money on the table — same-day invoices consistently get paid faster than end-of-week invoices.

  1. 1
    Open WhatsApp and tap the menu

    Tap a button in the menu — Invoice, Quote, or Job Report. Or send a voice note describing the job, or snap a photo of a handwritten job sheet. TaskDrop handles the rest in about 60 seconds.

  2. 2
    Confirm and send

    TaskDrop shows you a preview. Everything correct? Hit send. A professionally branded PDF arrives on your customer's phone immediately.

  3. 3
    Get paid

    Customer pays via their banking app using your sort code and account number — money arrives same day. Or by manual bank transfer. Your records update automatically. Done before you've started the van.

Note: CIS invoices handled automatically. If you work as a subcontractor under the Construction Industry Scheme, TaskDrop calculates the correct CIS deduction — 20% on labour only, not materials — and formats the invoice correctly every time.

Features

Built for how plumbers actually work

TaskDrop lives entirely in WhatsApp. Tap a button in the WhatsApp menu, answer a few quick questions, and a professionally branded PDF is back in under 60 seconds — ready to forward before you've even started the van. Or send a voice note, or snap a photo of a handwritten job sheet.

CIS Invoices

Automatic CIS deduction calculation — 20% on labour, not materials. Correct every time, included free.

Quote & Invoice

Send quotes before the job, convert to invoice after. Customer name and address carry over automatically.

Part Traceability

Log parts and materials on each invoice. Useful for warranty claims and landlord records.

Auto Reminders

Automatic payment reminders at 7, 14 and 21 days. You don't have to send them — they go automatically.

Expense Tracking

Log materials, van costs and tools via WhatsApp. Built-in records for your tax return.

Bank transfer — free

Every invoice includes your bank details — customer pays via their banking app. Money arrives same day. days. Bank details also print on every invoice — free bank transfer always an option.

Photo Invoicing

Snap a photo of a handwritten job sheet on WhatsApp. AI reads customer name, job, price, and materials automatically. Confirm before anything is created.

Facebook & Instagram Leads

Connect your Facebook Page. Every Messenger DM, Instagram DM, and Lead Ad arrives in WhatsApp with job details extracted and a Quote button ready to tap.

Why it matters

Why UK plumbers get paid slower than they should

The main reason plumbers don't get paid on time isn't that customers don't want to pay — it's that the invoice arrives late, or doesn't look professional enough to prompt immediate action, or there's no follow-up when the due date passes.

Same-day invoicing is the single biggest change most plumbers can make. When you invoice from the driveway while the customer is still thinking about the job, there's no gap for them to forget or dispute what was done.

Call-out rates and day rates vary significantly by region. London plumbers typically charge £75–£120 for a call-out, compared to £45–£80 in northern cities. TaskDrop doesn't set your rates — you enter your own figures. Common jobs include: boiler installations, bathroom refits, emergency call-outs, landlord annual checks, leak repairs, and new build plumbing.

Pricing

It's free. That's the whole thing.

No subscription. No £19/month plan. No trial that auto-charges. TaskDrop Pay is free. MTD submissions £80/quarter — cheaper than any accountant.l TaskDrop Pay transactions — both optional. Bank transfers are always free.

£0 / month · forever

Invoicing & TaskDrop Pay — always free. MTD submissions £80/quarter.

25 docs/month free — unlimited after your first MTD submission
Branded PDFs with your logo and contact details
VAT & CIS calculations — automatic, HMRC-compliant
Expense & mileage tracking for your tax records
Bank details on every invoice — free bank transfer always available
MTD ITSA submission — sandbox-tested, production credentials applied for
Automatic payment reminders
Dashboard access — manage everything from a browser
Start free, forever

No card. No subscription.

Instant bank payment via Open Banking — free forever. Bank transfers always free — your sort code and account number print on every invoice automatically. Full pricing breakdown →

Certification

Your registration number, on every document.

Add your scheme number to your profile once — it prints automatically in the footer of every invoice, quote, and job report you send. Customers and landlords see it without you typing it each time.

💧 WATERSAFE
🔧 CIPHE

Set it up in your dashboard under Account → Registration & Certification, or during onboarding.

Plumbers by city

Find TaskDrop plumbers in your city

Dedicated pages for plumbers in cities across the UK — with local context on rates, subcontracting, and the trades market in your area.

FAQ

Common questions from UK plumbers

Can TaskDrop handle CIS invoices for plumbers?

Yes. When asked if it's a CIS job, answer yes and TaskDrop calculates the 20% deduction on labour only (not materials), formats the invoice correctly, and shows the net amount payable.

Does it work for emergency callout invoices?

Yes — you can include callout fees, out-of-hours rates, and parts separately. Itemise them in the materials field and TaskDrop puts them on separate lines on the invoice.

Can I send quotes before starting the job?

Yes. Tap Quote in the WhatsApp menu, answer the same questions, and you get a professional quote PDF. When the job is done, convert it to an invoice with one tap — no re-entering details.

Is TaskDrop really free for plumbers?

Yes. Free forever — no subscription, no monthly fee. Your bank details print on every invoice automatically so customers can pay by bank transfer free forever. Every invoice includes bank details — customers pay directly via their banking app, same day. Free.

Guides

Useful reads for UK plumbers

Free, forever

Ready to invoice from
WhatsApp — for free?

No card. No subscription. 60 seconds to set up. Cancel any time from your dashboard — Account tab → Your data rights.

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