I just looked at your file, and...
=SUMIF(CategoryRange,"="&[Category],WithdrawalRange)
seems to be working just file for all cells...

A
B
10
Category
Total
11
Deposit
$ 6,362.06
12
Mortgage
$ 600.00
13
Fuel
$ 251.02
14
Food & Drinks
$ 719.26
15
Our Boys
$ 680.00
16
Utilities
$ 236.52
17
Credit Card
$ -
18
Wedding
$ 276.93
19
Garage
$ 66.00
20
Clothes & Shoes
$ 170.20
21
Cash
$ -
22
Other
$ 23.48