How It Works for Plumbers
Most plumbers are still doing invoices on the laptop at 10pm, or writing them up on a notepad and photographing them on their phone. Both approaches are slow, unprofessional, and mean you're leaving money on the table — research consistently shows same-day invoices get paid significantly faster than end-of-week invoices.
TaskDrop is different. It lives entirely in WhatsApp — the app already on your phone. You type INVOICE or QUOTE, answer six short questions about the job, and receive a professionally branded PDF invoice in under 60 seconds. You can forward it to your customer straight from WhatsApp before you've even started the van.
- Type INVOICE on WhatsAppTaskDrop asks for customer name, address, job description, hours, rate and materials.
- Answer 6 quick questionsTakes about 60 seconds. Works just as fast with your gloves on.
- Get your branded PDFSequential invoice number, your logo, VAT calculated, bank details included.
- Send to your customerForward the PDF from WhatsApp or email it directly. Done before you leave the job.
- Get paid fasterAuto reminders go out at 7, 14 and 21 days if unpaid — Pro plan.
Features Built for Plumbers
CIS Invoices
Automatic CIS deduction calculation — 20% on labour, not materials. Correct every time.
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.
MTD Records
Digital income and expense records built automatically — MTD-ready from day one.
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. Just answer yes when asked if it's a CIS job.
Why 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, lose the invoice, or dispute what was done. Payment is psychologically easier when the work is fresh.
Automatic reminders handle the awkward follow-up. Most tradespeople hate chasing money — it feels confrontational. TaskDrop sends professional, politely worded reminders at 7, 14 and 21 days without you having to do anything. Most late payments resolve on the first reminder.
Typical Plumber Invoice Values by Region
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. Whatever your rates, TaskDrop doesn't set them — you enter your own figures. But it does make sure every invoice goes out with the right numbers, on time, every time.
Common plumbing jobs on TaskDrop include: boiler installations, bathroom refits, emergency call-outs, landlord annual checks, leak repairs, and new build first and second fix plumbing.
Pricing — From £19/month
TaskDrop's Starter plan is £19/month — that's 30 invoices and quotes per month, branded PDFs, bank transfer invoicing, and customer dashboard access. The Pro plan is £39/month and adds unlimited documents, auto payment reminders, CIS invoices, job reports, HMRC deadline reminders, and annual tax summaries.
Both plans include a 14-day free trial with no card required. If TaskDrop doesn't save you time, you walk away — no charge.
At £19/month, TaskDrop pays for itself on the first invoice it helps you send faster. The average tradesperson spends 15–20 minutes on a manual invoice. TaskDrop takes 60 seconds. Over 30 invoices a month, that's 7–9 hours back.
Frequently Asked Questions
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. Works for both registered and unregistered subcontractors.
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. Type QUOTE on WhatsApp, answer the same questions, and you get a professional quote PDF. When the job is done, type HISTORY to convert it to an invoice — no re-entering details.
What about landlord gas safety records?
TaskDrop generates job records and invoices — not Gas Safe certificates. CP12 records must be issued through Gas Safe Register. TaskDrop is for your invoicing and paperwork, not regulatory certification.
How much does it cost?
Starter plan is £19/month (30 docs/month). Pro plan is £39/month (unlimited, plus auto reminders, CIS, job reports). Both plans include a 14-day free trial — no card needed to start.
Plumbers in Your City
TaskDrop has dedicated pages for plumbers in cities across the UK — with local context on call-out rates, parking, building regulations and more.
TaskDrop generates professional branded invoices for UK plumbers via WhatsApp. Sequential invoice numbers, VAT calculated, PDF emailed to customer. Try it free for 14 days — no card needed.
Start Free on WhatsApp