When you start truly simple, this is what you'll see

At the top of the screen you'll see the names of the months in your tax year, with an Account Summary button at the far right (use the right-arrow on the month bar to move there if you can't see it).

The blue & white area, on the left, will show the money you've earned.

The pink & white area, on the right, will show the money you've spent.

The purple area at the top shows you the total income, expenses and profit or loss for the relevant month. Then it shows you the total income, expenses and profit or loss for the year to date. This is also where you will see how much money to put aside for tax purposes for the month. This calculator takes into account your personal allowance, which is the amount we are all allowed to earn each year tax free.