Overview
This article covers key aspects of Roth Conversions and Capital Gains: Coordinating Both for Maximum Tax Savings. Understanding the tax rules for this type of capital gain helps investors plan more effectively and minimize their total tax liability.
Roth conversions and capital gains harvesting are both powerful tools -- and they compete for the same low-income bracket space. Done in the wrong order, they undermine each other. Done strategically, they can produce years where both deliver maximum value. Understanding how they interact is essential for retirees and early retirees managing income carefully.
How the Tax Rules Apply
Capital gains tax rates depend on your holding period and total income. Long-term rates (0%, 15%, 20%) apply to assets held more than 12 months. Short-term rates equal ordinary income rates. The 3.8% NIIT applies above ,000/,000 MAGI. State capital gains tax adds 0-13.3% depending on your state.
2025 long-term capital gains rates
| Rate | Single Income Threshold | Married Jointly |
|---|---|---|
| 0% | Under ,350 | Under ,700 |
| 15% | ,351 to ,400 | ,701 to ,050 |
| 20% | Over ,400 | Over ,050 |
| NIIT (+3.8%) | MAGI over ,000 | MAGI over ,000 |
Planning Strategies
- Hold investments more than 12 months to qualify for long-term rates
- Harvest losses to offset gains and reduce net taxable capital gains
- Use tax-advantaged accounts to shelter gains from annual capital gains tax
- Donate appreciated assets to charity to eliminate all capital gains tax
- Time sales to lower-income years when you may qualify for the 0% rate
Calculate Your Capital Gains Tax
Use the capital gains tax calculator to determine your exact federal and state tax on any investment sale. Enter your purchase price, sale price, dates, and income level for a precise result.
Calculate Your Capital Gains Tax
Enter your investment sale details to see federal, state, and NIIT capital gains tax instantly.