inniaccounts

monthly - 75 (not sure if vat inclusive)
Matt has passed on your enquiry so that I can hopefully put some estimates to you about using a Ltd company.
Based on a £100k gross contract and allowing for travel of £350 per month, £900 pa Accountancy, Say £1500 pa sundry expenses and allowing for a £6500 salary for yourself and £3000 for your wife who I understand already has other income (so this is subject to change as a result).
With these assumptions I would expect your after tax income to be approx £76500 (so 76.5%) which assuming your wife was a 50:50 shareholder could be drawn from the company by way of dividend without any further personal tax arising. If the gross contract was higher than £100k then there would be the possibility of additional higher rate personal tax to extract any additional profits.
The 50:50 shareholding with your wife allows the % level to be this high due to the tax free dividends that can be allocated to her. Although income splitting rules not being implemented and the arctic system case have alleviated some risk here it is not impossible for HMRC to question the shareholding ratio so you would still need to be comfortable that this split was justified.
In terms of expenses that can be claimed the typical things would be travel and subsistence, stationery, Accountancy and professional costs, Wages and salary, pension, use of home and anything else that was incurred on the performance of your work.
Our premium service includes the cost of setting up the company as well as all of the annual and quarterly compliance work required for the company and you personally. Our website goes in to more detail on this subject.
There is an alternative to the Ltd company route that I should make you aware of as it is specificalyy for contractors. This would give you an 80-82% return regardless of the contract value and without the need to utilise your wife's allowances which is a tax efficient umbrella structure for contractors. There are lots of providors of such products in the market place, many of which quote dangerously high returns not to mention very dangerous practices however the one that we would recomend is very much the market leader and is only available through referring accountants (Many of whom use the structure themselves) who fully understand its structure. If you are interested in exploring this then let me know.
Otherwise if you have any further queries about our service please let me know.