when ive worked it out theres not alot in it , you save the 8% you normally pay in NI class 4 (i think its 4 ) as a sole trader
BUt the accounts process is much more complex and formal but if you have a good accountant it seems to work well, i find it works when your getting to the turnover levels that are just below vat
I am thinking of incorporating in the next 12-24 months but in my case my wife works with me so the two of us could be directors so as a hypothetical scenario if we turned over 60 k with 10 k in expenses , as sole traders thats
50 k profit , 20 k tax free wages and roughly 30 k profit taxed at 28% which is 8400 (this is very rough i know the ni thresholds are slightly lower)
as ltd - it d be both of us paid our 10 k a year tax free as a paye employee and then the profit left would be paid tax on by the company at 20% corporation tax ie £6000
so theres a £2400 saving (roughly ) so if the extra accounting fees etc still workout wed be a couple of grand better off!
You take the extra money as dividends
If your accountant is suggesting it get him to prove its better and if so go for it
The only other reason to incorporate it to stop your personal assetts ie house etc being liable through your business , this is not always an issue with window cleaning but could be , most of the time its the money though
one other plus is the prestige of being limited , and being a Director . Altogether now OOOOOOOooooooooh
hope that helps