Those are both regressive taxes though. It would make more sense to get rid of tolls and then tax the land used for warehouses/facilities, notarization services, and such. Or would that cause uprisings by the nobility?
There's an entire section on taxes in Old World Armory 2E WFRP, and those regressive taxes are cornerstones of the taxation in the Lore. There are dozens of different tax types but there are entire careers in WFRP dedicated to Tax Collectors, including the Exciseman, Toll Keeper and Bailiff Careers, whose primary purpose is to collect those taxes. There's also protagonists and racketeers and dozens of other careers for the rough part of tax collecting, which is of course a thing. An excerpt of Old World Armoury Page 14:
"Taxes are a big part of commoners' lives. Though tax collectors are widespread, they only regularly collect, on average, taxes from about half of the Old World's population—in urban centres they have higher taxation collection rates, while in rural areas significantly less. This was not always the case. In generations past, before the emergence of the new middle class, peasants were little more than property and had to give a substantial percentage of the products of their labour to their lords who protected them. Since the rise of burghers, the governments of the Old World have been forced to adopt a different approach.
There are as many different types of tax as there are ways to avoid them. Each country is different, and frequently each province within that country operates as a law unto itself. Tax rates reflect the fortunes, whims, and personalities of the nation's rulers. They might squeeze the populace to fund a new castle, or they may decide the masses are best left to their own devices. Guilds, trade alliances, and city-states also demand coin from the everyday folk, as do illegal protection rackets.
Bretonnian taxes tend to be very much in the old style—feudal lords demand work and produce from the peasantry. And Tilean taxes are famously complicated and corrupt. Estalia manages to impose a national and regional tax more or less across all of its population, and Kislev and Norsca have what can best be described as primitive approaches to fund raising. Within the Empire, taxes, tax collection, licensing, extortion, and avoidance have almost become an art form as the population struggles to fund the latest war or scheme of the Elector counts.
Generally speaking, as long as the desired amount of money is raised, the method of its procurement is not questioned. Many Guilds and places rely upon bands of mercenary tax collectors— tough fighters, shrewd negotiators, and fierce opponents. Several independent companies of collectors exist, the most infamous being those that work the towns and villages of Stirland. These heavily armoured fighters are renowned for getting the job done, no matter who, living or dead, stands in the way.
Player Characters may encounter some, all, or none of the following taxes, depending on the whim of the GM."
The section then goes on to describe the following taxes: Fifteenths and Tenths, Poll Taxes, Ear Tax, Dinning, Window Tax, Banking Fee, Shank's Levy, Belt Tax and Licensing on top of the regular forms of taxation (tariffs, tolls, propety tax etc.). I am not spending my time going into detail on every type of taxation that canon goes over. There's a lot to go over, and a lot of it is designed to exacerbate the horrific atmosphere of the Old World.
