A boiler swap, a leaking stopcock, a new bathroom for a homeowner. Quote it, book the visit and the client is emailed to say when you’re coming, then invoice from the job when it’s done. A deposit covers the boiler before you order it, and the balance is only the labour. A VAT rate on each line when one rate won’t do, CIS and the reverse charge when you work for a builder, and the Gas Safe certificate out with the invoice email.
30 days of everything, free. No card needed.
“I won the job weeks ago and it still hasn’t got a date.”
Press Start job on an accepted quote and the client, the site, and the quote come with it. Book a visit on the Schedule for the morning, the afternoon, all day, or a set time, and Sendinvo emails the client to say when you’re coming. Jobs with nothing booked wait under To book, and when the work’s done, Raise invoice fills the invoice in from the job.
How jobs work“I’m two grand down on a boiler before I’ve turned a spanner.”
Ask for a deposit on the invoice, a percentage or a fixed amount with its own due date, and size it to cover the boiler, the cylinder, or the bathroom suite. It prints next to the balance, so the client can see the parts money and the labour money apart. Connect Stripe and the deposit is payable from the invoice’s pay link, by card or as an instant bank payment.
How deposits work“The builder’s office sends it back if the CIS figure is out.”
When you work for a builder, set your CIS rate once, then tick it on a sterling invoice to them and mark the materials lines. The deduction comes off the labour alone, so your materials keep their full value, and the invoice shows the gross total with the net amount due underneath. If you are both VAT registered and the work is standard- or reduced-rated, tick the domestic reverse charge alongside it and the wording HMRC expects prints on the document.
How CIS invoices work“The builder’s payment run has slipped again.”
Reminders escalate on their own at 1, 7, and 14 days past due unless you change them. If a sterling invoice to a business client runs over, Sendinvo works out the statutory interest from the Bank of England base rate the law fixes for the debt, adds the fixed compensation for a debt that size, and drafts a separate interest invoice for you to read before it goes.
Charging interest on a late paymentThe real app, filled with a plumber’s fortnight. It opens on the Schedule: a combi boiler swap on site this afternoon, a kitchen tap finished this morning and ready to invoice, and second fix on a builder’s new-build plots booked in. Behind it are an out-of-hours call-out at a pub, letting-agent maintenance on a recurring invoice, and a first-fix invoice to a builder that has gone past its date with reminders running. Have a click around.
A live demo seeded with a plumbing business. Nothing you do here is saved or sent.
One to the client whose boiler you’re swapping, one to the builder whose extension you’re first fixing. Different sums, both done for you.
The deposit covers the parts and the VAT on them, so what is left to chase is the labour. Sold as one boiler job, the controls go at the boiler’s 20%: HMRC treats a heating installation’s controls as part of one standard-rated supply (VAT Notice 708/6, 2.5.1). Controls fitted as a job of their own in a home can be zero-rated until 31 March 2027, and are 5% after. When one invoice does carry two rates, you set VAT per line. The Gas Safe certificate for the job goes out with the invoice email, next to the PDF.
The deduction is 20% of the £2,400.00 labour, not of the £3,550.00 total, so the copper and the soil pipe keep their full value. The invoice carries no VAT and prints the reverse-charge wording with the £710.00 the builder accounts for. When the builder pays the £3,070.00 net, Sendinvo settles the invoice in full.
Yes. Press Start job on an accepted quote and the client, the site, and the quote come with it. Book a visit for the morning, the afternoon, all day, or a set time, and Sendinvo emails the client to say when you’re coming, unless you untick the box. When the visit is finished the job reads Ready to invoice, and Raise invoice fills the invoice in from the job or its quote.
Yes. Ask for a deposit on the invoice as a percentage or a fixed amount, with its own due date, and set it to cover the boiler or the cylinder. It prints next to the balance, so the client sees the parts money and the labour money apart, and Sendinvo chases the deposit first, then switches to the balance once the deposit is in.
Yes. On a sterling invoice, tick “Set VAT per line” and give each line its own rate: 0%, 5%, or 20%. Sendinvo groups the lines by rate and gives each band its own subtotal, so lines at different rates can sit on one invoice. Which rate a line takes is yours to set, and your accountant’s to confirm.
Yes. Set your CIS rate once, 20%, 30%, or 0% for gross-payment status, then tick it on a sterling invoice and mark the materials lines. The deduction comes off the labour alone, so your copper and your sanitaryware keep their full value, and the invoice shows the gross total with the net amount due underneath. If you and the builder are both VAT registered and the work is standard- or reduced-rated, tick the domestic reverse charge alongside it and the invoice carries no VAT and prints the wording HMRC expects. It doesn’t apply to zero-rated work, such as plumbing a new home while it is being built, or when the builder has told you in writing that they’re an end user.
Yes. The deposit carries its share of the deduction, so the invoice shows what the builder pays for the deposit and for the balance, and Sendinvo chases each for that figure.
Yes. Files ride the invoice email next to the PDF, so the certificate that job produced arrives with the bill. Your public liability certificate goes out with every invoice email once you’ve added it in your company’s Invoices and quotes settings, and one email carries up to 10 MB across up to 10 files, not counting the invoice PDF.
Open an overdue sterling invoice to a business client and Sendinvo shows the days it has run over, the statutory interest at the Bank of England base rate plus 8%, and the fixed compensation the Act sets for a debt that size. One click drafts a separate interest invoice for you to read before it goes, and the invoice the builder already has is left as it went out.
30 days of everything, free, with no card and no invoice limit. After that it’s £20 a month, with your whole team included.