# How to add monthly expenses using SumIFS

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Hi everyone,

I'm having trouble with a SUMIFS function.

I am attempting to calculate monthly expenses using - so total costs for January, total costs for February, etc.

Here's what I have listed for my January formula:

=SUMIFS([TOTAL PAY]:[TOTAL PAY], [START DATE]:[START DATE], <=DATE(2024, 1, 31), >=DATE(2024, 1, 1))

It's spitting back an 'invalid operation' error.

Any suggestions on how I can resolve this?

Thanks!

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Having a quick look, it appears that you're missing a criterion between the two DATE formula. Try this:

=SUMIFS([TOTAL PAY]:[TOTAL PAY], [START DATE]:[START DATE], <=DATE(2024, 1, 31), [START DATE]:[START DATE], >=DATE(2024, 1, 1))

I bolded the two criterions for better readability. The duplicated criterions are specifying to count the sum when the start dates are in between 01/01/2024 and 31/01/2024.

Cheers,

Ric

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Having a quick look, it appears that you're missing a criterion between the two DATE formula. Try this:

=SUMIFS([TOTAL PAY]:[TOTAL PAY], [START DATE]:[START DATE], <=DATE(2024, 1, 31), [START DATE]:[START DATE], >=DATE(2024, 1, 1))

I bolded the two criterions for better readability. The duplicated criterions are specifying to count the sum when the start dates are in between 01/01/2024 and 31/01/2024.

Cheers,

Ric

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Ah! Easy fix. Thanks, Ric - that did the trick.

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Awesome, you were very close!

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