Your running the business not your accountant,vat is something you never ever want to jump the gun on.Add up your last 13 weeks income and post it on here.Keep track of a rolling 13 weeks(vat quarter) income by dropping off the furthest week away and adding the most recent.When you find you are consistently over the threshold then you can think about whether its worth it.You want a business but don`t want to be on the glass yourself and thats fair enough.Relying on this one man though is quite frankly bloody ridiculous and as there appears to be a decent income from work you already have then now is the time for another employee and that will cut profit which is just the way it is,thats how it works in real life! You might end up with 10 employes and 5 or 6 vans and you wont get near what that guy you have working for you would make for himself if it was his own work.Your going to need every penny this bloke is bringing in to get the business rolling forward and take nothing for yourself.You really ought to do at least a couple of hundred yourself weekly to keep money in your own pocket whilst the employees income feeds the business.If your not going to work then stop spending.
Employee on holiday,sick,injured,£3000 bill for a van repair plus time off the road and the vat man wants his money and you aint got it,income dropped below the threshold but the vat man won`t let you deregister until he has evidence over the next 4 quarters,nice bills from the accountant whilst his time is spent dealing with it all.
I`d also be a little concerned with the fact your man seems to consistently do £50 an hour inc. travel time and i wouldn`t dismiss a link between this and a fact you have mentioned previously that there seems to be difficulties in getting paid from customers.
You probably deserve to end up somewhere simply because you are still going but reel in on this vat idea until you have the 13 previous weeks regularly above the threshold,get another guy employed pronto and this will help to remove the fragility that exists with just one man providing everything.