You can consolidate IRA accounts of the same tax type into a single account without owing taxes, as long as you use a direct trustee-to-trustee transfer and stay inside a few rules. Traditional IRAs combine with other Traditional IRAs, Roth IRAs with other Roth IRAs, and a SEP IRA generally folds into a Traditional IRA. Combining IRA accounts goes wrong in three predictable ways: mixing tax types, taking physical possession of the money during the move, or ignoring the pro-rata rule that treats all your pre-tax IRAs as one pool.
Which IRAs Can Be Merged
Same tax treatment, same pool. You can roll any number of Traditional IRAs into one Traditional IRA, and any number of Roth IRAs into one Roth IRA. Because the money keeps its original tax character, the IRS treats these moves as non-events.
SEP IRAs share the tax structure of Traditional IRAs, so a SEP can roll into a Traditional IRA at any time. The dollars were pre-tax going in and stay pre-tax after the move.
SIMPLE IRAs come with a waiting period. In the first two years after you begin participating in a SIMPLE IRA plan, that money can only move into another SIMPLE IRA. Transfer it into a Traditional IRA or any other account type inside that window and the IRS treats the move as a distribution, with a 25% early withdrawal penalty rather than the usual 10%. After two years from your first day of participation, a SIMPLE can roll into a Traditional IRA with no penalty.1Internal Revenue Service. SIMPLE IRA Withdrawal and Transfer Rules
One boundary that surprises people: spouses cannot merge their IRAs into a joint account, even if both accounts are the same type. IRAs are individual by definition, and each spouse’s balance is tracked separately for tax purposes.
Moving money from a Traditional IRA to a Roth IRA is not a consolidation. The IRS classifies that as a conversion, and you owe ordinary income tax on the converted amount at your current marginal rate.2Internal Revenue Service. Topic No. 309, Roth IRA Contributions If your goal is simplification rather than a deliberate tax event, keep the two tax types on separate tracks.
Use a Direct Transfer, Not an Indirect Rollover
How the money moves matters almost as much as what’s moving. Two mechanisms exist, and they carry very different risks.
A direct trustee-to-trustee transfer sends funds straight from one financial institution to the other without you ever touching the money. You can do these as often as you like in a year, and they carry no withholding and no tax consequences.3Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions This is what most brokerages mean when they hand you a Transfer of Assets form.
An indirect rollover is different. The old custodian sends a check to you, and you then deposit it into the new account. Two traps come with that route. First, you have 60 days to complete the deposit or the entire amount becomes a taxable distribution.4Office of the Law Revision Counsel. 26 USC 408 – Individual Retirement Accounts Second, you get only one indirect rollover across all your IRAs during any 12-month period. The IRS aggregates every IRA you own for that limit, including Traditional, Roth, SEP, and SIMPLE.3Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions Miss the deadline or break the once-per-year rule and you can owe income tax plus a 10% early withdrawal penalty if you’re under 59½.
For anyone consolidating, direct transfers remove both risks. There’s no reason to run an indirect rollover for a simple IRA-to-IRA move.
The Pro-Rata Rule Can Create a Surprise Tax Bill
This is where consolidation planning gets tricky. The IRS requires you to treat all your Traditional, SEP, and SIMPLE IRAs as a single pool when calculating the taxable portion of any distribution or conversion.4Office of the Law Revision Counsel. 26 USC 408 – Individual Retirement Accounts You can’t cherry-pick which dollars come out first.
An example makes this concrete. Say you have $93,000 in a rollover IRA (all pre-tax) and you contribute $7,500 in nondeductible after-tax money to a new Traditional IRA, planning to immediately convert just that $7,500 to a Roth. You might expect zero tax, since you already paid tax on the $7,500. The IRS instead sees a $100,500 total IRA balance. About 7.5% of that is after-tax, so roughly 92.5% of your $7,500 conversion is taxable. In a 24% bracket, that’s around $1,660 in federal tax you didn’t plan for.
The calculation uses your December 31 IRA balances for the year, not the balances on the date of the conversion. Roth IRAs, 401(k)s, 403(b)s, and your spouse’s accounts stay out of the calculation.
The practical consequence for consolidation: rolling old employer 401(k) balances into a Traditional IRA to tidy things up can poison a backdoor Roth strategy for years. If you plan to do backdoor Roth conversions, it’s often smarter to move pre-tax IRA money into a current employer’s 401(k), if the plan accepts rollovers, so your Traditional IRA balance is zero before converting. Consolidate in the direction that fits your future tax plan, not just your filing cabinet.
Inherited IRAs Stay Separate
Inherited IRAs sit in their own regulatory box and generally cannot be combined with your personal retirement accounts. If you inherit a Traditional IRA from someone other than your spouse, you cannot roll it into your own IRA, contribute to it, or mix it with your personal accounts.5Internal Revenue Service. Publication 590-B (2025), Distributions from Individual Retirement Arrangements (IRAs)
A surviving spouse has more flexibility and can treat an inherited IRA as their own by designating themselves as the owner or rolling it into an existing IRA.5Internal Revenue Service. Publication 590-B (2025), Distributions from Individual Retirement Arrangements (IRAs) After that, it follows normal IRA rules.
Multiple inherited IRAs of the same type from the same decedent can be combined into one inherited IRA. Inherited accounts from different decedents cannot be merged, and an inherited Traditional IRA cannot be combined with an inherited Roth IRA even if both came from the same person.5Internal Revenue Service. Publication 590-B (2025), Distributions from Individual Retirement Arrangements (IRAs)
How to Run the Transfer
Open the receiving account first if you don’t already have one, and make sure it’s the correct tax type: Traditional for Traditional and SEP consolidations, Roth for Roth. Then request a Transfer of Assets (TOA) form from the receiving firm. Most brokerages offer this online.
On the form you’ll list the old account number and custodian, choose full or partial transfer, and indicate whether the assets should move in kind or be liquidated to cash first. The receiving institution takes it from there and contacts the delivering firm.
You don’t have to sell everything to consolidate. Most publicly traded stocks, bonds, mutual funds, and ETFs can transfer in kind, so shares move electronically without being sold and you stay in your positions through the transfer window. Proprietary funds are the exception. Some mutual funds are offered exclusively by one institution and can’t be held elsewhere, so those shares get sold and the cash moves instead. Inside an IRA the sale doesn’t trigger tax, but you may reinvest at different prices on the other end.
Some institutions require a Medallion Signature Guarantee for larger transfers. There’s no universal dollar threshold; each firm sets its own policy, and banks, credit unions, and broker-dealers that participate in a Medallion program can provide it.6U.S. Securities and Exchange Commission. Medallion Signature Guarantees: Preventing the Unauthorized Transfer of Securities
Most brokerage-to-brokerage transfers run through the Automated Customer Account Transfer Service (ACATS) and settle within four to six business days after the delivering firm responds. Transfers involving firms outside ACATS or non-standard assets can take longer. Budget two to three weeks with a slower custodian. The delivering institution may charge an account closure or transfer-out fee, typically in the $50 to $125 range, and many receiving firms will reimburse it if you ask.
RMDs and Basis: Two Things to Track
If you’re 73 or older, you’re already taking required minimum distributions, and RMDs cannot be rolled over.7Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs Take the year’s RMD before starting the transfer. That avoids confusion about which custodian is on the hook and keeps the transferred amount clean.
Consolidation actually makes future RMDs easier. IRA owners must calculate the RMD for each Traditional IRA separately, but the IRS lets you satisfy the combined total by pulling from any one or any combination of your Traditional IRAs.7Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs Once you’re down to one account, there’s one calculation and one withdrawal.
After a direct like-kind transfer, both institutions still report the movement. The delivering custodian files Form 1099-R showing the distribution, and the receiving custodian files Form 5498 showing the rollover contribution.8Internal Revenue Service. Instructions for Forms 1099-R and 5498 (2025) Keep both. The matching pair is how the IRS confirms the move wasn’t taxable.
If you ever made nondeductible contributions to a Traditional IRA, file Form 8606 with your return to track your after-tax basis.9Internal Revenue Service. About Form 8606, Nondeductible IRAs Consolidation doesn’t change your basis, but if the paper trail disappears you can end up paying tax twice on money you already paid tax on. Easy to ignore for twenty years, expensive to reconstruct at retirement.