when do you BR as a tax code
You may find you have a tax code of two letters and no numbers and here's the explanation for those codes: 1  Code BR-The Basic Rate is used when all your income gets taxed at the basic rate currently at 20 percent.2  HRMC most commonly use this code for a second job or pension receipts.ou may find you have a tax code of two letters and no numbers and here's the explanation for those codes: 1  Code BR-The Basic Rate is used when all your income gets taxed at the basic rate currently at 20 percent.