Is it better to have interest monthly or annually? With a separate assessment, both husband YTD can apply to a vast number of calculations, such as investment appreciation, expenses, sales or income. What are YTD deductions? Once established, multiply the average semi-monthly gross income by 2 to determine gross monthly income. For example, let’s say you are calculating your YTD income at the end of March. Lenders use this calculation to determine the annualized monthly income and calculate your debt-to-income ratio. Lenders take your monthly gross income and debt payments and calculate your debt-to-income ratio. For example, if an employee earns R10 000 per month in March and April and then R20 000 in May, their YTD income would be R40 000 (10 000 + 10 000 + 20 000) and the annual equivalent in May would be calculated as 40 000 / 3 x 12 = 160 000. Below is the formula I use to calculate the number of complete months from the Start Date to last Pay Ending Date: =IF((MONTH(G7)<2),ROUNDDOWN(G33+0.01,0),IF(G7