# (Excel examples for Beginners)

In this end-to-end excel example, you will learn – How to Subtotal invoices by age in Excel.

### Generic formula

`=SUMIF(age,criteria,amount)`

### Explanation

If you need to subtotal invoice amounts by age, you can easily do so with the SUMIF function.

In the example shown, the formula in G5 is:

`=SUMIF(age,G5,amount)`

Where age is a named range for the range E5:E11, and amount is a named range for D5:D11.

### How this formula works

The SUMIF function takes three arguments: range, criteria, and sum_range.

In this case, we are using:

Range: the range of cells (E5:E11) to which criteria in column G is applied.

Criteria: G5 – a reference to the adjacent cell in column G, which contains the criteria. This is a relative address so that it will change when copied down.

Sum_range: the range of cells (D5:D11) that is summed when the criteria is TRUE.

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