There are various sites that calculate this.

Project Wren is one, I reckon they'd put you at about 10 tonnes per year or so, that's a very rough order of magnitude estimate by me though.

Regarding budget; that's something that would have to be decided in a vague sense in order to enact a carbon tax.

On a personal level you can just decide. Personally I donate and buy enough offset/capture that I go negative, because I can, and because my career means that I have enough money as long as I calibrate my lifestyle expectations appropriately.

Their calculator put me at 16.3 tons.

The biggest impact they calculate is driving an electric vehicle; but I doubt they take into account the additional CO2 footprint of a new vehicle.

My house is ineligible for solar panels, because it sits under trees. Reducing meat consumption by 30% would only cut emissions down by 0.3 tons.

The good news is, I can offset 100% of that by paying for tree planting in Kenya, for only $208/year. Which frankly sounds too good to be true.