It is rather difficult to find an exact number for how much colonists paid in taxes
This article on PBS Newshour says:
the average British citizen who resided in Britain paid 26 shillings
per year in taxes compared to only 1 shilling per year in New England
So as near as I can tell the answer is 1 Shilling per year.
From what I can find online my best guess (and it is a guess) is that 1 shilling is worth about $340 today. see here
The costs To Great Britain are even harder to find.
The American Indian war cost the British £70,000,000 see here. That's £11,141,888,434.78 in today's money per this site.
Wikipedia says that in that time period there were 20 shilling a pound. The colonial population was about 2.5 million so that's about £125,000 in revenue from the colonies each year. That would take 560 years to pay of the war debt, ignoring interest and inflation and . . . well. . . revolution.
I couldn't find any info on the cost to administer the colonies but considering that the colonies were largely self governing, I'm guessing that the cost to Great Britain was minuscule compared to the war debt.
Of course we should consider that the British expected to keep a large military and naval force in the colonies. No doubt that expense would have been large.
More interesting information about taxes in America circa 1776
American Colonies (and to a larger extent, the British Crown) were
primarily funded by tariffs and excise taxes. This means taxes
primarily existed on imports of goods and services to the colonies, as
well as on the sale of particular products. . . the average tariff worked out to about 10 percent of the value of imports,
Sugar and Molasses Act (1733) taxed colonists at 6 pence a gallon.
Sugar Act reduced the rate of tax on molasses from six pence to three pence per gallon, but was more strictly enforced.
Apparently the more stringent enforcement of the tax affected the colonial economysource:
The combined effect of the new duties was to sharply reduce the trade
with Madeira, the Azores, the Canary Islands, and the French West
Indies (Guadelupe, Martinique and Santo Domingo (now Haiti)), all
important destination ports for lumber, flour, cheese, and assorted
farm products. The situation disrupted the colonial economy by
reducing the markets to which the colonies could sell, and the amount
of currency available to them for the purchase of British manufactured
Stamp Act Basically taxed anything printed on paper (and some odd things like dice or payments to employees) and was very long and complex The tax varied from selling land (two shillings), to an advertisement in a gazzet(newspaper), (two shillings), to a pack of playing cards (one shilling), or dice (ten shillings)
you can see the full list of all 54 taxed items here
The Townshend Acts imposed a tax on tea of four pence per pound which comes to about $8 in today's money. source
There was also the Currency Act which abolished the private bank notes (non-government backed money, or notes of promise) while not technically a tax this would have been a financial burden to the colonists.
I Hope that helps!