For 2026 you can put $7,500 into a Roth IRA, or $8,600 if you are 50 or older, and that is the entire allowance whether the account holds an index fund, a spot Bitcoin ETF, or bitcoin itself at a self-directed custodian. The IRS announced the figures in November 2025 through Notice 2025-67, and its master table of retirement limits still carried the same numbers when it was last updated on August 24, 2026. This post was written on September 21, 2026; these numbers reset every year, so check the year on any figure you read.

The limit matters the moment you decide how much bitcoin exposure belongs in a tax-free account rather than a taxable brokerage. It sets the size of the annual bite. A second number, the income phase-out, decides whether you are allowed to take that bite at all.

Two rules govern the number, not one

The first rule is the dollar cap. It is $7,500 for 2026, up $500 from $7,000 in 2025. The catch-up contribution for savers 50 and older rose to $1,100 from $1,000, the first increase since the SECURE 2.0 Act tied that amount to inflation, which brings the older saver's total to $8,600.

That cap is per person, not per account. The IRS states it plainly: "The total contributions you make each year to all of your traditional IRAs and Roth IRAs can't be more than $7,500 ($8,600 if you're age 50 or older), or if less, your taxable compensation for the year." A crypto IRA is a self-directed IRA that happens to custody digital assets, so it draws from the same bucket as the Roth you already have at a brokerage. Opening a second account does not create a second allowance.

The second rule is the income test, and the Roth is the only IRA that applies one to contributions. Eligibility is measured against modified adjusted gross income, your adjusted gross income after the add-backs the IRS specifies for this calculation. Below the bottom of your range you contribute the full amount. Inside the range you contribute something less, with the exact figure depending on where in the band you land. At or above the top you cannot contribute directly at all.

$7,500
2026 IRA limit, under 50
Combined across every traditional and Roth IRA you own
$8,600
2026 limit, age 50+
Includes the $1,100 catch-up contribution
$153,000 to $168,000
Roth phase-out, single and head of household
Was $150,000 to $165,000 in 2025
$242,000 to $252,000
Roth phase-out, married filing jointly
Was $236,000 to $246,000 in 2025

Married filing separately is the outlier. That range stays at $0 to $10,000 and receives no annual cost-of-living adjustment, so it grinds tighter every year in real terms.

Three savers, three different ceilings

A single filer at $138,000 of MAGI is comfortably below $153,000 and can contribute the full $7,500. If she already sent $4,000 to a conventional Roth at her brokerage in January, her remaining room for a Bitcoin Roth IRA is $3,500, not $7,500. The aggregate rule does not care how many custodians are involved.

A married couple filing jointly at $248,000 sits inside the $242,000 to $252,000 band. They can each contribute, but a reduced amount, and being 50 or older does not restore eligibility; the catch-up raises the ceiling, not the income threshold.

A joint filer at $260,000 has no direct Roth contribution available for 2026. CNBC's summary of the announcement notes this is the point where savers turn to backdoor Roth strategies, which is a conversion rather than a contribution and carries its own reporting rules. And a saver with $5,000 of taxable compensation for the year is capped at $5,000, regardless of what the table says.

What the cap is not

The most common confusion is between a contribution and a rollover. If you move an old 401(k) into a self-directed IRA that holds bitcoin, that transfer is not a contribution and is not measured against $7,500. This is why meaningful bitcoin positions inside retirement accounts are usually funded by rollovers rather than by annual deposits: $7,500 a year is a drip, not a position.

New contribution Rollover or transfer
Annual dollar cap $7,500, or $8,600 at 50+ None
Income test applies Yes, for a Roth No
Where the money comes from Taxable compensation this year An existing retirement account
Typical role in a bitcoin plan Steady annual funding Funding the initial position

The other mix-up is between the Roth income limit and the traditional IRA deduction limit. They are separate tests with separate numbers. A single filer covered by a workplace plan sees the traditional IRA deduction phase out between $81,000 and $91,000 of MAGI in 2026, far below the Roth range, and Fidelity's breakdown puts the equivalent joint range at $129,000 to $149,000 where the contributing spouse is covered. Being shut out of a deduction does not shut you out of a Roth.

Turning the number into a plan

Do three things with this. Check your expected MAGI against your filing status band before you fund anything, because an overcontribution is a correction, not a rounding error. Add up what has already gone into every IRA you own this year. Then decide where the remaining room lands.

That last decision is the real one, and the limit does not make it for you. One route is a spot Bitcoin ETF inside an ordinary brokerage IRA, where you own fund shares and the fund's custodian holds the keys; that wrapper is what changed access for retail investors. The other is a self-directed IRA at a custodian that holds actual bitcoin. Either way, Section 408 of the Internal Revenue Code requires a qualified custodian, and the Tax Court's 2021 decision in McNulty v. Commissioner treated personal possession of IRA assets as an immediate taxable distribution. Keys in your own hands are for your taxable stack, not for the IRA.

One timing note: contributions follow the tax filing deadline, not the calendar. A 2025 contribution could be made until April 15, 2026, which means for part of each year you have two years of room open at once.

You know your room. Now choose the wrapper.

Once the contribution figure is settled, the question is whether that money buys ETF shares or coins at a self-directed custodian, and what each costs over a 20 year hold. Our deeper treatment of [Bitcoin inside a Roth](/bitcoin-roth-ira-tactics/) walks through both structures, their fees and their custody trade-offs.

Read the full guide