Before starting this, you should have read the tutorial here.

If you have done the previous tutorial you realize you have recognized the rent due. The word "recognized" is important.

Find the property name in the property journal. Click on the property name. 

If you don't see the property go here.

Click on the name of the property.

If there is a pop up asking you for more information  go here 

Once the property journal for the chosen property opens, it will look similar to this since you have worked on the rent payment in the last tutorial. 

In this step you will post the rent payment. Now you look for "Payment received" (post payment), you will choose this radio button. Click "Post Payment".

You will see a a pop up, for confirmation. 

Since you already "recognized" the rent due, you click "Yes". (a choice "No" is not accrual accounting)

Now you see the dialog for the post.

And the result is:

    Note: Notice the bank balance both in the right column, and also in the upper right corner has increased?

Note: When you have collected the rent payment the "Profit and Loss" will reflect that rent income.

Note: If you want to see rent receivables but not paid, such as late rent, click on the Rent Roll link in the dashboard right menu.  Here you will see "unpaid" as the amount. Another way to see the Rent receivable but not paid, is to go to the Tenant Journal, where the format is like a tenant statement. Here the unpaid rent is shown. Even if it is for more than one month unpaid.  Shown as "amount due" outstanding.

As we assume you collect your rent, we don't show rent receivable beyond the current 30 day period in the Rent Roll. Internally the accounting is correct.