How much stock can I sell and still pay 0 long term capital gains?

[user17525220452]

Lets say our AGI is about 70,000 and our taxable income is about 40,000. Can I sell $56,700 in stock ($0 cost basis) and still pay no capital gains tax or am I limited to 26,700? How do I figure this out?

[Katie-P]

Given your scenario, and assuming that you are filing Married Filing Jointly because you referenced "our taxable income", you are correct that you could sell $56,700 of stock with $0 cost basis and pay $0 capital gains taxes, but only assuming that these are long-term sales.

Here's a resource that confirms the long-term capital gains tax rates and brackets for tax year 2025:

TurboTax: A Guide to the Capital Gains Tax Rate: Short-term vs. Long-term Capital Gains Taxes 

Great question! 

[Edited 7/16/25 | 10:45 am PT]:

@user17525220452 - just a quick note: I ran this scenario in a test TurboTax tax return, and I can confirm the tax due did not change at all once I added in the long-term sale. You can test things out yourself using a dummy TurboTax Online tax return, TurboTax Desktop tax return, or by entering in some numbers in our TaxCaster Tax Calculator - just note that in all of these tools, the info is currently pointed to the 2024 tax year, so you may want to test it out using a sale of $54,050 instead of $56,700.