WealthPulse.
Calculator · Tax & Refunds

Charitable Donation Tax Calculator

What a donation actually costs you after the deduction — if you itemise at all.

Read the how-to
The formula

How this number is built

net cost = donation − (deductible portion × marginal rate) − capital gains avoided
Step by step

Doing it by hand

Step 1

Add up your other itemised deductions first — mortgage interest, state tax, medical above the floor.

Step 2

Compare the total to the standard deduction; only the excess produces a benefit.

Step 3

Apply your marginal rate, not your effective rate, to that excess.

Step 4

Consider donating appreciated securities to avoid the capital gains tax as well.

Step 5

Confirm the charity is a qualified organisation and keep the written acknowledgement.

Questions

What people ask next

What is bunching?

Combining two or three years of planned giving into one tax year so the itemised total clears the standard deduction.

Are donated goods deductible?

Yes, at fair market value, with substantiation requirements that get stricter above certain thresholds.

Search intent

Searches this page answers

Related searchGoes to
donateHow to Calculate Charitable Donation Tax
charitable deductionHow to Calculate Charitable Donation Tax
how to calculate donation deductionHow to Calculate Charitable Donation Tax
Keep going

Tools that follow from this one

Estimates, not advice. Every figure here is produced from the inputs you enter and the formula printed on the page. Rules differ by state, carrier, lender and contract, so use these numbers to prepare for a conversation with a qualified professional rather than to replace one. See our full disclaimer.