Hi again Famer,
The best way to confirm his actual pay is to look at the muster rolls
1 held by the National Archives. Unfortunately these haven't been digitized so it involves a visit in person or getting someone to do a lookup for you. There's an example of a page from a muster roll below, albeit from 1815.
There two kinds of stoppage: those that applied universally such as payment for rations, and individual stoppages such as when a soldier was fined for some misdemeanour, or went into hospital. A man was given a basic ration of meat bread and beer, but had to 'buy' the vegetables etc. Soldiers and the wives of the married soldiers had to cook their own meals when in barracks. The concept of the army cook and the 'cookhouse' ie centralised catering, came much later. Their uniform and 'bedding' was supplied free, although a soldier would have to pay for any kit that he lost or became worn out before its time. There were also levies for barrack damages, usually raised when a regiment left one barracks and moved to another. A representative of the commissariat would inspect the barracks with a regimental officer and make a note of all the damage caused by the unit. The bill would then be divided up amongst all the men in the unit, unless the damage was localised to one identifiable part of the unit, such as the Officers' Mess.
Things changed considerably over the nineteenth century and so it is hard to generalise about the many incidental expenses a soldier might incur. There were also mandatory savings schemes whereby part of a soldier's pay would be paid into a type of savings account which was released to him on discharge, Additionally a soldier could make an allotment from his pay to go to support his family or his wife.
Occasionally there were opportunities for soldiers to earn extra pay, such as being selected as an officer's batman. This was not official pay, but something arranged between the officer and the soldier based on the usual rates for that unit and time.
1. See
https://discovery.nationalarchives.gov.uk/details/r/C14227Added: Forgot to append the image!
