# Subtotal invoices by age

=SUMIF(age,criteria,amount)

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.

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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