Calculators and generators that save you real time on real jobs. Use them, bookmark them, send them to your apprentice. We make money when you run your business on BackOnTools, not from harvesting your inbox.
The same invoice tool, pre-loaded with your trade's own line items at real 2026 Australian prices, plus what that trade actually charges an hour and where the number came from. Twelve trades, invoice or quote.
Open the tool →All tradesType the job and the price, get a tax invoice that actually meets the ATO's eight requirements. GST worked out, ABN check-digit tested, and it warns you at the $1,000 mark where the buyer's name becomes mandatory. Prints to PDF, remembers your details.
Open the tool →All tradesLabour hours at what they cost you and what you charge, materials with markup, the other costs, the margin. The quote, your real cost and the profit side by side before it goes on paper.
Open the tool →All tradesSupplier cost in, sell price out, with markup and margin shown together. A 25% markup is a 20% margin; this stops you quoting one and booking the other.
Open the tool →All tradesPick your trade, tick the tasks, print a Safe Work Method Statement with the hazards and controls already written. Two minutes, not two hours of photocopying last month's form.
Open the tool →VictoriaThe same builder with WorkSafe Victoria's nineteen high risk construction work categories and its record rule quoted on the page, under the OHS Regulations 2017.
Open the tool →New South WalesSafeWork NSW's high risk construction work list and the two-year rule after a notifiable incident, quoted from its own template, under the WHS Regulation 2025.
Open the tool →QueenslandWorkSafe Queensland's duties under the WHS Regulation 2011: prepared before work starts, a copy to the principal contractor, kept until the work is done.
Open the tool →ElectriciansLoad, run length and cable size in, drop in volts and percent out, checked against the 5% limit. The 10-second sanity check before you quote the shed run.
Open the tool →PlumbersDN size, run length and grade in, fall in millimetres and invert depths out, minimum grades checked. Set the laser, not the guesswork.
Open the tool →All tradesYour income target, overheads and real billable hours in, the hourly rate you should be charging out. Most tradies who run it find out they're underpricing.
Open the tool →HVACRoom size, insulation, sun and climate in, the right split system size in kW out. Stop guessing between the 3.5 and the 5.
Open the tool →BricklayersWall area in, bricks or blocks with the right wastage, pallets, mortar and cement out. AU 230 x 110 x 76 and 190 series block, 10mm joint, working shown.
Open the tool →TilersArea, tile size and laying pattern in, tiles, adhesive bags and grout out, with the right wastage for the pattern. Herringbone eats more than you think.
Open the tool →CarpentersDeck size and board width in, lineal metres, board count, joists and screws out. Quote the merbau before the customer changes their mind.
Open the tool →PaintersWalls, ceiling, doors and coats in, litres and the tins to buy out. No more half-used 10L cans in the shed.
Open the tool →RoofersRoof width, run and pitch in, sheet count, lengths and screws out for corrugated and trimdek profiles.
Open the tool →LandscapersArea and depth in, cubic metres, trailer loads and turf rolls out. Know whether it's a bag job or a bulk delivery before you quote.
Open the tool →CleanersBedrooms, bathrooms and clean type in, hours and price out. End-of-lease priced like end-of-lease, not like a weekly tidy.
Open the tool →All tradesYour average job value times the calls that ring out while you're on the tools. See the yearly number for your business, using your figures, not marketing stats.
Open the tool →Every calculator here saves minutes. BackOnTools runs the day: the phone answered 24/7 and jobs booked from your price book, quotes, invoices with a pay link, crew and the safety paperwork with the job. Ring the demo line and pretend you're a customer.
