Boiler engineer invoice template

How do boiler engineers usually invoice?

Boiler engineers quote installations as a package price, take a deposit of around 30% when the boiler is ordered, and invoice the balance on the day it is commissioned. Breakdown repairs are charged as a diagnostic call-out plus parts, invoiced immediately so the customer can pay before the engineer leaves. Boiler cover companies and letting agents are invoiced monthly at agreed rates.

Boiler engineers in this example give the customer 7 days to pay, after a 30% deposit taken before the work starts. Hourly rates run from £55 to £90. A full day is typically £340 to £500.

What should a boiler engineer put on an invoice?

Beyond the legal basics, boiler engineers should:

• Write the boiler make, model, serial number and warranty length on the invoice; it is what the manufacturer asks for.
• Show the Gas Safe notification reference and the Benchmark commissioning date.
• Separate the diagnostic call-out from parts on repair invoices.
• For cover companies, include their job reference and the agreed labour rate.

Every UK invoice, whatever the trade, must also show:

• a unique, sequential invoice number
• your business name and address (and company number if you trade as a limited company)
• the client’s name and address
• the invoice date and, for VAT invoices, the date of supply if different
• a clear description of each item of work or goods
• the amount due and when it must be paid
• your VAT number, the VAT rate per line and the VAT total, if you are VAT registered

Do boiler engineers charge VAT?

Construction work for a contractor falls under CIS: the contractor deducts 20% (30% if you are not CIS registered) from the labour element before paying you, so show labour and materials on separate lines. If you are VAT registered and the contractor is too, the domestic reverse charge applies and you charge no VAT; write "Reverse charge: customer to account for VAT" on the invoice. Work for private householders is outside both rules. Below the £90,000 registration threshold you charge no VAT at all.

On the Flat Rate Scheme the sector for boiler engineers is usually “General building or construction services” at 9.5% of VAT-inclusive turnover, with a 1% discount in the first year of registration. If you spend little on goods you may be a limited cost trader and have to use 16.5% instead. The scheme suits businesses with few VAT-able costs; check it against the standard method with the VAT calculator before joining.