Roth Conversion Strategy for Big Law Attorneys: When to Convert and How Much

Roth conversion vs. backdoor Roth: what's different

These two strategies are frequently confused. They're distinct operations:

The backdoor Roth adds $7,500/year in Roth contributions. A Roth conversion can move $50,000, $100,000, or more from pre-tax to Roth in a single year — if the year's income supports a favorable rate. Big Law careers create both opportunities, but at different stages.

Why typical Big Law years are poor conversion windows

An active equity partner with $1M+ in K-1 distributions, or a 7th-year associate earning $380,000 base plus a $115,000 bonus, is in the 37% federal bracket on every additional dollar of income. Converting $100,000 from a rollover IRA would add $37,000 in federal taxes — plus state. That makes sense only if retirement income will be taxed at a higher rate, which is rare.

But Big Law careers are not smooth income lines. They include recurring intervals where income drops sharply — and those intervals are the conversion windows.

The six Roth conversion windows in a Big Law career

1. Federal judicial clerkship

Federal district court clerks earn roughly $80,000–$95,000. Circuit clerks earn $95,000–$100,000. Supreme Court clerks are at the top of the JSP scale, around $116,000. For a single filer with no other income, a district-level clerk's taxable income (after the $16,100 standard deduction) sits around $64,000–$79,000 — entirely within the 22% federal bracket, well below the $105,700 top.¹

If you have student loans under IBR during your clerkship, conversions increase MAGI and can affect income-driven repayment calculations. Model carefully. See our federal clerkship financial planning guide for the full picture.

2. Gap between Big Law jobs

Attorneys who leave a firm in Q2 and join a new firm in Q4, or take 3–6 months off between roles, earn only a partial year of Big Law salary. Someone departing in March after earning 2 months of a $325,000 base ($54,000 YTD) has a dramatically different conversion window than a full-year associate. The mechanics: total income for the year may be $100,000–$150,000 — putting substantial conversion room in the 22%–24% brackets.

3. Big Law → in-house transition

GC and Deputy GC roles at corporate employers typically pay $200,000–$400,000 in base salary — below equity partner distributions, and without the bonus volatility. RSU grants vest over 3–4 years, so year-one in-house income is often the lowest. An attorney dropping from $600,000 in Big Law distributions to a $280,000 in-house base occupies the 32% federal bracket, not 37%. For spouses filing jointly, the window can be even wider. See our partner-to-in-house guide for the full income transition model.

4. Big Law → government transition

DOJ, SEC, FTC, and U.S. Attorney positions pay $140,000–$220,000 under GS-15 and SES scales. A partner who previously drew $800,000 in K-1 distributions is now at $175,000 — moving from 37% to the 24% federal bracket (single) or 22%–24% (MFJ with other income). Government stints often last 2–5 years. That's a multi-year conversion window with significant rate differential. Our Big Law to government guide models the full financial transition.

5. Departure year — the NQDC gap

When an equity partner leaves a firm, §409A governs how NQDC distributions are triggered. For key employees (officers and top-paid), distributions can't begin until 6 months after separation. Once they begin, they're paid on whatever schedule was elected years earlier — often 5, 10, or 15 annual installments. The capital account return typically runs on a separate, longer schedule.

Between departure and first NQDC payment, ordinary income from employment drops to near zero. This is often a 6–18 month window where, combined with a partial-year salary before departure, total income is unusually low. See our Leaving Big Law guide for the full departure-year income modeling.

6. Early retirement income gap

Partners who retire at 58–62 face a gap before Social Security, Medicare, and potentially before NQDC distributions begin. In these years — particularly if the attorney steps down to of-counsel status with reduced income — converting large traditional IRA balances at 10%–24% rates is a major planning opportunity. The caveat: Roth conversions increase MAGI, which triggers IRMAA Medicare surcharges once the attorney reaches 65 (see below). Model IRMAA 2 years in advance — IRMAA uses your income from 2 years prior.

How much to convert: fill the bracket, then decide

The standard approach is to fill your current bracket before converting into the next. In a clerkship year at $88,000 gross (single), you have $33,800 of conversion room at 22% before crossing to 24%. The question is whether to keep converting at 24% — which depends on your projected retirement rate.

A useful rule: if the current bracket rate is materially below your expected retirement rate (by 5+ percentage points including state), convert to the top of that bracket at minimum. If the rate differential is small, the time-value cost of paying taxes early reduces the benefit.

Roth conversion optimizer

Enter your income for the year excluding the conversion, and the conversion amount you're considering. The calculator shows your marginal rate on the conversion and estimates the net lifetime tax advantage versus keeping assets in a traditional IRA.

Assumptions: 7% annual return, standard deduction only, 2026 federal brackets. State tax applied uniformly; verify your state's treatment of Roth conversions (most states tax them as ordinary income). Results are estimates — actual benefit depends on bracket changes, investment returns, and state law.

Roth conversion and the pro-rata rule

If you have any pre-tax IRA balances (rollover IRA, traditional IRA, SEP-IRA, SIMPLE IRA) in addition to after-tax basis, the pro-rata rule applies. The IRS treats all your IRAs as one pool and calculates the taxable fraction of any conversion proportionally. This applies differently to Roth conversions than to the backdoor Roth strategy.

For a Roth conversion: you're converting pre-tax money, so the pro-rata rule is less relevant — you're intentionally paying taxes on the conversion. What matters is that you're converting the right accounts. Roll old 401(k) balances to a traditional IRA before the conversion window; convert during the low-income year; then in your next high-income job, roll remaining pre-tax IRA balances back into your new employer's 401(k) to clean up the pro-rata picture for future backdoor Roth contributions.

See our Backdoor Roth IRA guide for how this sequencing interacts with the $7,500 annual backdoor contribution.

Integrating conversions with NQDC and the Big Law tax stack

Big Law attorneys often have multiple tax-deferred income sources firing at once in retirement: NQDC distributions, traditional IRA RMDs (starting at age 73 for those born 1951–1959, age 75 for born 1960+, per SECURE 2.0³), Social Security, and any remaining K-1 or of-counsel income. Stacking all of these in the same years can push retirement income to $300,000–$600,000 — nearly as high as active-practice rates.

Pre-retirement Roth conversions during low-income windows reduce this stack. Each dollar converted moves future RMDs out of the traditional IRA and eliminates the RMD obligation on that amount entirely (Roth IRAs have no RMDs during the owner's lifetime). The NQDC optimizer can show you what your NQDC distribution trajectory looks like and where the conversion gaps are. See the NQDC Deferral Optimizer for that analysis.

Get matched with a Big Law specialist

Roth conversion strategy is one of the highest-leverage tax moves available to Big Law attorneys — but only when timed correctly across career transitions. A fee-only advisor who works with AmLaw 200 attorneys can map your income timeline across clerkship, transitions, NQDC distribution schedule, and retirement to find every conversion window and size each one correctly.

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