{ "slug": "backdoor-roth", "name": "Backdoor Roth", "aliases": [ "backdoor roth ira", "nondeductible ira conversion", "pro rata rule", "mega backdoor" ], "family": "accounts", "heat": "mid", "talk": "Some talk", "mostDiscussed": false, "firstLine": "A backdoor Roth is the informal name for making a nondeductible Traditional IRA contribution and then converting money to a Roth IRA.", "whyLine": "The confusing part is usually the paperwork: nondeductible basis, other IRA balances and how this year’s contribution and conversion connect to earlier tax returns.", "feelWords": [ "backdoor Roth", "pro-rata", "nondeductible", "HENRY", "Form 8606" ], "commonPicture": [ { "lead": "Other IRA balances matter", "why": "Pre-tax Traditional, SEP or SIMPLE IRA money can affect the pro-rata tax calculation. [community]" }, { "lead": "Form 8606 tracks nondeductible basis", "why": "Contribution and conversion records may connect more than one tax year. [community]" }, { "lead": "2026 IRA contribution limit", "why": "Traditional and Roth contributions share $7,500, or $8,600 at age 50+; conversions follow different rules. [community]" } ], "watchFor": "Other pre-tax IRA balances can change the conversion’s tax result. A regular IRA backdoor and an after-tax 401(k) mega backdoor use different account rules.", "whatPeopleSay": [ "**The job:** Get money into a Roth IRA when the front door is income-locked. [community]", "**Higher-income discussions:** Bogleheads and forums for high earners discuss this when modified adjusted gross income, the income measure used for eligibility, is above the direct Roth IRA limit. [community]", "**What must be understood first:** contribution eligibility, existing IRA balances and tax reporting affect the result. The attractive name does not make it a routine first-paycheck step. [community]", "**Pro-rata:** if they have a pre-tax Traditional IRA, the conversion is partly taxable. People learn this the expensive way. [community]", "**A former 401(k) moved into an IRA can affect the calculation:** that pre-tax IRA balance may change the taxable share of a later conversion. Transfer order and account records matter. [community]", "**Congress has threatened to close it** for years. 2026 it was still a thing in talk. It could change. [community]", "**The similarly named mega backdoor uses a workplace plan:** it requires particular after-tax contribution and Roth-transfer features, rather than the regular IRA contribution process. [community]", "**If the amounts are small and the IRA is messy:** they may skip. A taxable brokerage still exists. [community]", "**Not tax advice. A CPA earns their fee here.** [community]", "**It is not a loophole personality.** It is a form. [community]", "**The account transaction and investment choice are separate:** a backdoor Roth describes contribution and conversion steps, not a recommendation to buy a particular asset. [community]" ], "howPeopleRunIt": [ "**Check this year’s Roth IRA income limits** — they move. [community]", "**Inventory all Traditional, SEP and SIMPLE IRAs:** the pro-rata tax calculation considers the relevant IRA balances and nondeductible basis together, not only the newest account. [community]", "**If pro-rata is ugly:** some people roll pre-tax IRA back into a 401k that allows it, then backdoor. That is a person-with-a-plan move. [community]", "**Contribute, convert soon,** keep the paper trail. [community]", "**Keep the Form 8606 record:** it tracks nondeductible IRA basis and the relevant conversion calculation, so prior-year records can matter. [community]", "**They do not do this from a YouTube short alone** if there is already IRA money. [community]", "**If it is too spicy:** they max the 401k / HSA and use taxable. Fine. [community]" ], "amountsPeopleUse": [ "**2026 IRA talk:** **$7,500** (plus catch-up if they qualify). Year-bound. [community]", "**Tax on conversion:** $0 extra if $0 pre-tax IRA and no gains in the tiny window — in the clean story. Not a promise. [community]", "**Pro-rata:** taxable slice = pre-tax IRA ÷ all Traditional IRA × converted amount. The formula people screenshot. [community]", "**The mega-backdoor ceiling is different:** workplace-plan employee and employer additions use a separate overall limit. That number is not the regular IRA contribution limit. [community]", "**Time:** same-week convert is the usual hygiene talk. [community]" ], "howPeopleKeepIt": [ "**A note in the tax folder:** dates, amounts, confirmation PDFs. [community]", "**They do not open a random Traditional IRA** at a new broker and forget it. [community]", "**They ask before rolling a 401k to an IRA** if they still want this door. [community]", "**A tax pro** the first year. [community]", "**They stop calling it a flex in group chats.** [community]" ], "howItFeels": [ "**Clean first time:** clever adult. [community]", "**Pro-rata surprise:** they feel tricked. They had the other IRA the whole time. [community]", "**Form 8606 panic in April:** the annual ritual. [community]", "**Skipping it:** sometimes relief. [community]", "**Explaining it at a party:** a cry for help. [community]", "**The good version:** boring, documented, never again discussed. [community]" ], "howLongPeopleRunIt": [ "**Each year they are over the direct-Roth limit** and still want IRA room. [community]", "**Until law changes or income drops.** [community]", "**It is not a one-time identity.** [community]", "**After they retire / income falls,** the front door may open again. [community]" ], "deepDive": [ "**Purpose versus process:** Roth-versus-Traditional discussion concerns tax timing. A backdoor Roth concerns a particular way money moves through an IRA contribution and conversion; it does not settle whether Roth treatment fits the person. [community]", "**Rollover decisions can change the tax picture:** a pre-tax IRA created by moving an old workplace plan may affect later conversions. Before combining accounts for convenience, people check the effect on their existing IRA basis and balances. [community]", "**Mega backdoor is a workplace-plan feature:** the plan must allow the relevant after-tax contributions and movement to Roth. It does not use the same contribution limit or steps as an IRA backdoor. [community]", "**A taxable brokerage is a separate alternative:** it allows investing without this IRA contribution-and-conversion sequence, but does not provide the same retirement-account tax treatment. [community]", "**Tax forms are part of the process:** a Form 1099-R reporting a distribution or conversion does not by itself establish an error. It needs to be reconciled with the contribution, conversion and basis records. This is not tax advice. [community]" ], "watchForLong": [ "**Pro-rata is the trap.** [community]", "**Understand the account history before acting:** existing pre-tax IRA money and prior nondeductible contributions can change the tax result. [community]", "**Mega-backdoor is a different feature.** [community]", "**Law can change.** [community]", "**A CPA or software that knows 8606 — not a meme.** [community]" ], "related": [ "roth-vs-traditional", "four-oh-one-k-rollover", "the-match", "taxable-brokerage", "hsa-account" ], "researchPointer": [], "housePointers": [], "playPointer": null, "sources": [ "Bogleheads backdoor Roth wiki talk", "pro-rata rule explainers", "HENRY 2026 threads" ], "disclaimer": "Community talk may be wrong. Not financial, tax, legal, or investment advice. No return or outcome is promised.", "quickAnswerHistory": [ { "field": "commonPicture", "rows": [ { "lead": "Pro-rata tax if pre-tax IRA $ exists", "why": "The trap. All Traditional IRAs count. [community]" } ] }, { "field": "communityPicture", "rows": [ "People discuss existing IRA balances, conversion timing and tax paperwork, and distinguish this IRA process from a mega backdoor through a workplace plan." ] }, { "field": "firstLine", "rows": [ "A backdoor Roth is a two-step people use when income is too high for a direct Roth IRA: nondeductible Traditional contribution, then convert." ] }, { "field": "whyLine", "rows": [ "A backdoor Roth is a two-step people use when income is too high for a direct Roth IRA: nondeductible Traditional contribution, then convert." ] }, { "field": "commonPicture", "rows": [ { "lead": "Income over Roth IRA limits", "why": "The reason the door exists. [community]" }, { "lead": "Contribute nondeductible Traditional, then convert", "why": "Two steps, same week if they can. [community]" }, { "lead": "Other pre-tax IRA money can make part of the conversion taxable", "why": "Pro-rata means the tax calculation accounts for other IRA money, even when new contributions pass through a different account. [community]" }, { "lead": "Form 8606", "why": "The paperwork people forget once and remember forever. [community]" }, { "lead": "Mega-backdoor is different", "why": "After-tax 401k + in-plan conversion. Employer-plan feature. Not this card’s job. [community]" }, { "lead": "2026 IRA contribution limit: $7,500; $8,600 at age 50+", "why": "Traditional and Roth IRA contributions share this annual limit. Conversion amounts follow different rules. [community]" } ] }, { "field": "watchFor", "rows": [ "Treating it as a first-fold flex. Ignoring pro-rata. Confusing it with mega-backdoor (a 401k after-tax feature)." ] }, { "field": "whatPeopleSay", "rows": [ "**Bogleheads and HENRY subs** treat this as standard once MAGI is over the limit. [community]", "**Why it is not wave-1:** it is a tax mechanic, not a first paycheck move. [community]", "**A 401k rollover into an IRA** can poison the backdoor later. Sequence matters. See Rollover. [community]", "**Mega-backdoor** is a flex in tech-offer letters. Not a beginner card. Mention only. [community]", "**Do not mix $STUD into this sentence.** [community]" ] }, { "field": "howPeopleRunIt", "rows": [ "**Inventory all Traditional / SEP / SIMPLE IRAs.** Pro-rata cares. [community]", "**File 8606.** [community]" ] }, { "field": "amountsPeopleUse", "rows": [ "**Mega-backdoor limits** are 401k total-addition territory. Out of scope here. [community]" ] }, { "field": "deepDive", "rows": [ "**Roth vs Traditional** is the why. This is a plumbing card. [community]", "**Rollover** can help or hurt the plumbing. [community]", "**Mega-backdoor** stays a mention. Not a tutorial. [community]", "**Taxable brokerage** is the escape hatch. [community]", "**Not advice. This is how people get unexpected 1099-Rs.** [community]" ] }, { "field": "watchForLong", "rows": [ "**Not a first-fold move.** [community]" ] } ] }