Best Roth IRA Providers for Conversions (2026 Comparison)

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Roth conversions are one of the most powerful tax-planning tools available to retirees, but the experience of actually executing a conversion varies significantly by provider. Some make it a three-click process; others require phone calls, paperwork, and multi-day processing. When you are converting annually — potentially doing multiple partial conversions throughout the year — the provider's process matters.[1]

This guide compares the three largest Roth IRA providers for conversions in 2026: Fidelity, Charles Schwab, and Vanguard. We evaluate each on the factors that matter most for retirees doing regular Roth conversions: ease of conversion, tax reporting quality, investment options, and costs.

Why Your Provider Matters for Roth Conversions

A Roth conversion involves moving money from a Traditional IRA to a Roth IRA. The converted amount is added to your taxable income for the year, and you owe ordinary income tax on the pre-tax portion.[2] The mechanics seem simple, but several provider-dependent factors affect the quality of the experience:

• Ease of transfer: Can you initiate the conversion online in minutes, or does it require a phone call, a paper form, or a multi-day processing queue?
• Tax reporting accuracy:The provider issues your 1099-R form in January. How clearly does it report the conversion? Does the online tax center make it easy to import into TurboTax or H&R Block?
• Fractional shares: If you are converting specific dollar amounts from a Traditional IRA invested in ETFs or mutual funds, the provider needs to handle fractional shares properly rather than forcing you to sell holdings to round numbers.
• In-kind conversion support: Can you convert investments in kind (without selling and rebuying), preserving your cost basis and avoiding any market timing risk?

Top 3 Roth IRA Providers Compared

1. Fidelity — Best Overall for Roth Conversions

Fidelity is the top choice for retirees doing regular Roth conversions. The entire conversion process can be completed online in under five minutes — no phone calls, no paperwork. You can convert specific dollar amounts or specific holdings in kind, and Fidelity handles fractional shares seamlessly.

• Conversion process: Fully online. Select the Traditional IRA, choose the amount or holdings to convert, confirm tax withholding preference, and submit. Processed same or next business day.
• Tax reporting: Excellent 1099-R with clear distribution code (Code 2 for conversion). Tax center integrates directly with TurboTax for one-click import.
• Investing: Full brokerage with zero-expense-ratio index funds (FZROX, FZILX), thousands of ETFs, individual stocks and bonds. No commissions on online trades.
• Costs: $0 account fees, $0 conversion fees, $0 trading commissions on stocks and ETFs
• Best for: Retirees who want the smoothest conversion experience with the broadest investment options

2. Charles Schwab — Best for Customer Service

Schwab offers a strong Roth conversion experience with the added benefit of excellent phone and branch support. If you prefer talking to a person for large conversions, Schwab's customer service consistently rates among the best in the industry. The online conversion process is straightforward, though slightly less streamlined than Fidelity's.

• Conversion process:Online or by phone. The online process requires navigating to the transfer/conversion section, selecting accounts, and specifying the amount. Processed within 1–3 business days.
• Tax reporting:Clear 1099-R reporting. Tax center supports import into TurboTax and H&R Block.
• Investing: Full brokerage access including Schwab index funds (among the lowest-cost in the industry), ETFs, individual securities, and Schwab Intelligent Portfolios (robo-advisor with no advisory fee for balances over $5,000).
• Costs: $0 account fees, $0 conversion fees, $0 online trading commissions
• Best for:Retirees who value phone support and want access to Schwab's branch network for in-person help

3. Vanguard — Best for Buy-and-Hold Index Investors

Vanguard pioneered low-cost index investing and remains the gold standard for buy-and-hold investors. Their Roth conversion process has improved significantly in recent years, though the website is less polished than Fidelity's or Schwab's. Where Vanguard shines is in fund costs — Admiral Shares of their core index funds carry expense ratios as low as 0.04%.

• Conversion process:Online. Navigate to the conversion page, select Traditional IRA and Roth IRA accounts, choose amount or holdings, and submit. Processing typically takes 1–3 business days.
• Tax reporting:Accurate 1099-R. Vanguard's tax center supports TurboTax import. Reporting is reliable but the interface is more basic.
• Investing: Vanguard mutual funds (including Admiral Shares with rock-bottom expense ratios), ETFs, and limited individual stock/bond trading. Best for retirees invested in a simple three-fund portfolio.
• Costs: $0 account fees (for e-delivery), $0 conversion fees, $0 commissions on Vanguard funds and ETFs. $25/trade for non-Vanguard mutual funds.
• Best for: Retirees committed to Vanguard index funds who value simplicity and the lowest possible fund expenses

Side-by-Side Comparison

How to Do a Roth Conversion: Step by Step

Regardless of provider, the Roth conversion process follows the same basic steps:[1]

1. Open a Roth IRA at your chosen provider if you do not already have one. This takes about 15 minutes online and requires no funding upfront.
2. Determine your conversion amount.Use our Roth Conversion Calculator to find the optimal amount based on your tax bracket, ACA subsidy cliff, and IRMAA thresholds. Start conservative — you cannot undo a Roth conversion after the tax year closes.
3. Initiate the conversionthrough your provider's website. Select the Traditional IRA as the source, the Roth IRA as the destination, and specify the dollar amount or specific holdings to convert.
4. Choose tax withholding carefully. Most retirees should elect $0 withholding from the conversion itself and pay the tax from a separate account. Withholding from the conversion reduces the amount that goes into the Roth and effectively reduces the benefit.[4]
5. Make estimated tax payments if needed. A large Roth conversion may require a quarterly estimated tax payment (Form 1040-ES) to avoid an underpayment penalty. If you convert in Q4, you may be able to increase tax withholding on other income (such as Social Security) instead.[3]
6. Track the conversion for tax filing. Your provider will issue a 1099-R in January. The conversion is reported on Form 8606, and the taxable amount flows to your 1040.[2]

Tax Withholding Considerations

One of the most common mistakes retirees make is allowing their provider to withhold federal (and sometimes state) taxes from the Roth conversion amount. Here is why this is usually suboptimal:

• If you convert $50,000 with 22% withholding, only $39,000 goes into your Roth IRA. The other $11,000 goes to the IRS as a tax payment. You are paying taxes from your pre-tax retirement savings instead of from separate funds.
• If you convert $50,000 with $0 withholding and pay the $11,000 tax from a taxable brokerage account, the full $50,000 goes into your Roth IRA and grows tax-free. You effectively moved more money into the tax-free bucket.
• The only scenario where withholding makes sense is if you have no other source of funds to pay the tax and cannot make estimated payments.

The Bottom Line

Fidelity is the best overall choice for retirees doing regular Roth conversions. The process is the smoothest, the investment options are the broadest, the tax reporting is excellent, and there are zero fees across the board.

Charles Schwab is a strong alternative, especially if you value in-person branch access or phone support for larger conversions. The Schwab Intelligent Portfolios robo-advisor is a nice bonus for hands-off investors.

Vanguard is the right choice if you are already invested in Vanguard index funds and want the simplest possible investment approach. The conversion process has improved, and the fund costs remain the lowest in the industry.

Whichever provider you choose, the most important decision is not where you convert but how muchyou convert. Getting the annual conversion amount right — staying within your target tax bracket while avoiding IRMAA and ACA cliff impacts — is where the real tax savings happen.