I posted this before on another thread about wages and markup on materials etc.......
If you’re self employed then you have to generally remember that you are a business man 1st and a spread 2nd....not the other way round. However you price, you should be looking to cover overheads, wages and profit. I see plenty of people say they are £175 a day....If that’s what they are charging then they aren’t earning £175 a day. When you start looking at overheads it can be surprising how much it adds up. Insurance, van, tools, MOT, tax, fuel, work clothes, printer ink, servicing, advertising, phone etc etc.
You also have to factor in that you don’t get paid holidays or a pension.
Just for an example per annum...insurances £800, van on tick £2400, tools £300, tax and MOT £200, servicing £400, clothes £300, fuel £5000, stationary £120, advertising £1000, phone £350
Then factor in that you only want/can work 46 weeks a year due to public holidays, the odd day off and a holiday a year.
Then factor in you aren’t getting a pension contribution as you are self employed.
You want a wage of £875 a week (£45500 a year)
£10870 a year expenses
Then if you was working in the public sector you would be looking at a minimum of a 5% pension contribution (£2275 a year)
£2275 Towards a pension
£58,645 / 46 working weeks=£1274 a week or £254.80 a day
If you just have your plastering head on and not your business head and charge £175 a day with the above expenses and the fact your not getting a pension and factoring in holidays etc then your actually earning about £104 a day.....You would be better off working for someone else and not have all the stress/bother of quoting, dealing with customers etc and be earning more money.
So to answer the question...yes you should be adding a mark up as you need to make as much as poss to cover everything including guaranteeing your work and the material you’ve provided. Anything you make on top by providing a markup could be profit for your business.....To not would be bad business sense imo.