Tiling (Fliesen)
Tiling is billed by the square metre. What breaks the invoice is rarely the metres — it is everything that comes on top.
How it is billed
Walls and floors by the square metre, skirting and profiles by the running metre, stripping old tiles usually as a lump sum, fixing someone else’s work by the hour. Every line has its own unit, so your quote reads the way you calculate on site, not the way an office spreadsheet does. Areas and volumes are worked out in the program itself: you enter the dimensions wall by wall and floor by floor, name every measurement your own way, and the total goes into the quote as a finished item with the breakdown — you can see where the figure came from. The program does not deduct openings; that stays with you.
What gets lost in the paperwork
On a bigger bathroom it is the extras that vanish: mosaic formats, mitre cuts, levelling the substrate, waste removal. What is not in the quote will not be on the invoice either — and after three months nobody remembers what the price covered. Then there are the instalments: on jobs running for weeks they must be deducted from the final invoice to the euro.
Do the math yourself
Take the last bathroom. Levelling the substrate, mitre cuts, waste removal, the trip to the merchant — how much of that was in the quote? Every one of those lines has a price you know by heart. Multiply it by the number of bathrooms you did this year. That is what one missing line costs. Nobody took that money from you — you simply never asked for it.
Five minutes a day
In the morning you check what is on for today. In the evening you log your hours and photograph the receipt for the adhesive. That is all. Out of that comes the quote, out of the quote the job, out of the job the instalments, and out of those the final invoice — each one takes its data from the one before, so you never type anything twice. This is not about sitting in the program. It is about not sitting in the paperwork on a Sunday.
What it watches for you
Working for a main contractor, the program sets the reverse charge under §13b itself and watches your §48b certificate — without it your client must withhold 15 percent and pay it to the tax office. This is not a detail: it is your money sitting at the tax office until the certificate is back in place.
At the end of the year
Invoices issued and receipts collected feed into the annual accounts and the VAT return without retyping. Reverse-charge invoices land in the right boxes on their own — the exact place where most mistakes happen.
The key is entering your data consistently...
