I've tried finding a solid source of infomation about this as I was trying to compare salaries of commissioned officers in various armies of the period. I'm not trying to make a very comprehensive list but at least find some information on the salary of junior, mid level and senior commissioned officers.
A lieutenant?
A Captain or Major?
A colonel?
What would be the salary of a private in the same regiment?
How would this compare to a civilian of similar status?
Much depends on what regiment you were assigned to, be it regular infantry, artillery, guards, cavalry etc. As you've not specified then I'll give you the wages of positions within a regular infantry regiment for a standard year based on 1810 pay rates.
A Lieutenant would start on £119, 2 shillings and sixpence but this would increase after 7 years service to £136, 17 shillings and sixpence.
A Captain would earn £191, 12 shillings and sixpence and a Major £292 exactly.
A full colonel could expect to take home £410, 2 shillings and sixpence.
An infantry private would earn £18 and 5 shillings, however much of this would be subject to deductions for food, necessities and the Chelsea Hospital etc and would only be left with £4, 18 shillings and 9 pence for a year.
As for civilian pay for a job of similar status, I don't have the figures to hand for that but it was certainly not comparable. Generally, according to the Duke of Wellington, people only ... "enlist from having got bastard children – some for minor offences – some for drink", from which we can take that people usually only joined the army due to a lack of other options available to them. Collapse of certain local trades, such as weaving, could also play a part in localised need to join.
Hope this helps.
I don't have to hand information on the remuneration for officers of the period, but according to Brig. Sir Richard Homes, in his book "Redcoat", many officers relied on private income or wealth as opposed to the salary offered by service.