Invoicing Tips for Tradespeople — BASIC

Why Invoicing Matters More Than You Think

For most tradespeople — plumbers, electricians, builders, cleaners, gardeners — invoicing is the least favourite part of the job. You'd rather be on site doing the work than sitting in your van creating invoices. But poor invoicing habits are one of the biggest reasons small trade businesses struggle with cash flow.

According to the Federation of Small Businesses, late payments cost UK small businesses over £22 billion a year. For tradespeople working job to job, a few late payments can mean struggling to cover material costs, fuel, and wages. Getting your invoicing right isn't just good admin — it's essential for survival.

Invoice Immediately

The single biggest improvement most tradespeople can make is invoicing faster. If you finish a job on Tuesday and don't send the invoice until Friday, you've already added three days to your payment timeline. If the customer then takes 14 days to pay, you're waiting over two weeks for money you've already earned.

The goal should be same-day invoicing. Finish the job, send the invoice. With mobile invoicing tools, you can do this from your van before you drive to the next job. The customer receives the invoice while the work is fresh in their mind, which also reduces disputes.

How to Invoice on the Same Day

Use an invoicing app or platform on your phone — not handwritten invoices.
Set up templates with your standard rates so you can create an invoice in under two minutes.
Include photos of the completed work if relevant — this adds professionalism and reduces queries.
Send via email or a shared link so the customer gets it instantly.

Make Your Invoices Clear and Professional

A professional invoice isn't just about looking good — it's about getting paid without confusion. Every invoice should include:

Your business name and contact details — including your registered address if you're a limited company.
The customer's name and address — matching their records exactly.
A unique invoice number — sequential numbering (INV-001, INV-002) makes record-keeping simple.
The date of the invoice and the date the work was completed.
A clear breakdown of work — itemised lines showing what was done and the cost of each element.
The total amount due — prominently displayed.
Payment terms — when payment is due (e.g., "Due within 14 days").
Payment methods — your bank details, and any other accepted payment methods.

The Power of Itemisation

Vague invoices cause delays. An invoice that simply says "Plumbing work — £350" invites questions. An invoice that breaks it down into "Replace kitchen tap — £120, Parts (Bristan mixer tap) — £85, Replace bathroom radiator valve — £95, Parts (15mm valve) — £50" gets paid faster because the customer can see exactly what they're paying for.

Set Clear Payment Terms

Many tradespeople don't specify when payment is due, which effectively means "whenever the customer gets around to it." Set explicit payment terms on every invoice. Common options include:

Due on receipt — payment expected immediately.
Net 7 — payment due within 7 days.
Net 14 — payment due within 14 days.
Net 30 — payment due within 30 days (more common for commercial clients).

For residential customers, Net 7 or Net 14 is standard. For commercial clients, Net 30 is typical but you can negotiate shorter terms. Whatever you choose, make it clear on the invoice and stick to it.

Follow Up on Late Payments

Chasing payments feels awkward, but it's a necessary part of running a business. Most late payments aren't deliberate — people are busy and forget. A friendly reminder often resolves things immediately.

Set up a simple follow-up system:

Day 1 after due date — send a brief email reminder: "Just a reminder that invoice #123 was due yesterday. Please let me know if you have any questions."
Day 7 after due date — follow up with a phone call or text. Keep it friendly but direct.
Day 14 after due date — send a formal overdue notice referencing your payment terms.
Day 30 after due date — consider whether to pursue further or write off the debt. For larger amounts, a letter before action may be appropriate.

Track Everything

You need to know, at any point, how much you're owed, by whom, and how overdue each payment is. This is where many tradespeople fall down — they send invoices but don't track whether they've been paid. Weeks later, they realise they're owed thousands across dozens of customers.

Use software that links invoicing to your customer records. When you view a customer, you should see their outstanding invoices alongside their job history. This makes follow-up natural rather than a separate admin task.

Deposits and Stage Payments

For larger jobs, don't wait until the end to invoice. Take a deposit before starting work (20-30% is standard) and invoice at agreed stages. This protects your cash flow and reduces the risk of non-payment on big projects.

Make deposit and payment stage requirements clear in your quote. Put it in writing before work begins. This sets expectations and gives you a reference if disputes arise.

Keep It Simple

The best invoicing system is the one you'll actually use. If creating an invoice takes 20 minutes of fiddling with Word templates, you'll procrastinate. If it takes 60 seconds on your phone, you'll do it immediately.

BASIC includes built-in invoicing that connects directly to your customer records. Create an invoice, link it to a customer, itemise the work, and send — all from one platform, for £3 per user per month. No separate invoicing subscription, no complexity.