First things first. Do you actually itemize your deductions? Because if you don't you'll get squat for donating.
I have put in donations before, up to around 5k 1 year, and never saw any change in my rebate/amount owed.
I have head of having to itemize, but i dont even know what that meant.
One reason why i don't even bother getting recipes when i donate, i figured you had to donate gobs of money to really even see a dent in taxes. like 1000$ in donations is 1$ saved in taxes or something
I assume that you're using tax software and not doing your taxes by hand.
This is a disadvantage of using tax software.
It teaches you absolutely nothing about taxes.
Every year, you're given a choice. You can either take the standard deduction, which is $6300 for single people and $12600 for married filing jointly (MFJ), or you can itemize your deductions. You can find the full list of things you can itemize on schedule A, but the most common ones are state income tax, state sales tax if you live in a state without income tax, state property tax, mortgage interest, and donations to charity.
So if the sum of all of your itemized deductions do not exceed your standard deduction, you should not itemize and you should take the standard deduction instead. This is the reason you never saw any change in your tax liability.
Conversely, if the rest of your itemized deductions do exceed the standard deduction, every charitable donation you make will reduce your tax liability by your marginal rate * charitable donation. So if you donated $1000 and you're in the 15% tax bracket, you'd reduce your federal tax liability by $150.