In this case, the VAT that they will use to either fund or partially fund the UBI is what creates instant inflation in the price of goods and services. Take the UK as an example. When you add a 20% VAT the good or service is immediately transformed at the cash register from £100 to £120. When you figure in every good or service this happens to; things get out of control very quickly.

First you're confusing taxes with inflation. Taxes aren't a form of inflation, they are costs to goods and services.

https://www.differencebetween.com/difference-between-cost-of-living-and-vs-inflation/

The only argument I'll entertain isn't that it'll cause inflation, but that you think it'll guarantee an increase in cost of living.

https://medium.com/basic-income/wouldnt-unconditional-basic-income-just-cause-massive-inflation-fe71d69f15e7

But then again, inflation isn't as simple as you think, and what are you trying to say with something that has nothing to do with how Brazil dealt with their hyperinflation? Ubi has been studied, we know it's effects, it points to the opposite of what you're suggesting, it is not "a peril". You can open your mind, how do you talk about something you seemingly have no clue about? You think you know how inflation works? Why? And how do you come to that conclusion that you have any clue as to how inflation works, money creation or ubi?