Tax Strategy
Roth vs. Traditional, tax-loss harvesting, the tax-advantaged trifecta, HSA investing, and how to pay less tax across a full lifetime of earning and spending.
53 guides in this topic
Concept21 min readCalculator
Should Charitable Donations Be Tax Deductible? The Case for Ending the Deduction
The US charitable deduction costs about $69B a year and 63% of its 2019 benefit went to the top 1%. What the research says, and why I would end it anyway.
Methodology24 min readCalculator
We Open-Sourced a TALS Simulator: Why More Harvested Losses Don't Mean More Wealth
In one synthetic zero-alpha simulation, a 250/150 book harvested 7.2x the losses of long-only and ended $427k behind it in median after-tax wealth. Here is why.
Strategy13 min readCalculator
SPAXX vs. SGOV: Which Is Better for Cash at Fidelity?
SPAXX pays your bills automatically; SGOV yielded more after tax at Aug 2026 rates, up to ~$484/yr on a modeled $100k in California. Which cash goes where?
Strategy19 min readCalculator
Where to Hold International Stocks: Taxable or Tax-Advantaged?
Only 58.5% of VXUS's 2025 dividends were qualified, but sheltering it forfeits the foreign tax credit. How to decide at the household level, with a calculator.
Strategy26 min readCalculator
BOXX ETF Explained: Box Spreads, Tax Advantages, and the Tradeoffs
BOXX turns T-bill interest into deferred capital gains. The federal case is real, state taxes cut the other way, and the Section 1258 question is unresolved.
Strategy24 min readCalculator
Box Spread Loans: What They Save Depends on the Rate You're Escaping
A short SPX box spread borrows near wholesale rates. Against double-digit retail margin the gap is over five points. Against a cheap broker's margin, tiny.
Strategy18 min readCalculator
Your ZIP Code Is Part of Your Financial Plan: How State Taxes Affect Retirement
For one modeled couple, leaving New York five years earlier was worth $279,000 more than moving at retirement. Why timing matters more than the headline rate.
Methodology21 min readCalculator
Dividend Growth vs. Small-Cap Value: What the Factor Regressions Show
We regressed VIG, SCHD, VYM, NOBL and AVUV on the five Fama-French factors. Dividend growth's value loading is 0.002. That changes the comparison.
Strategy16 min readCalculator
What If You Just Paid the 10% Early-Withdrawal Penalty?
Skip the Rule of 55 and the Roth ladder. Eat the full 10% penalty at 45. With a bracket drop the traditional 401(k) still wins from year one.
Concept16 min readCalculator
There Are Only Four Things You Can Do With a Capital Gain
Pay it, give it away, exclude it, or defer it. Discounted at 5%, waiting 20 years turns a 23.8% tax bill into about 9% today. Only two of the four reach zero.
Strategy16 min readCalculator
The ACA Subsidy Cliff Is Back: Health Insurance for Early Retirees in 2026
The enhanced premium tax credits expired and the 400% poverty-line cliff returned. One dollar over $62,600 single or $84,600 married can cost more than $8,000. Calculate your own edge.
Concept21 min read
Give Your Children a Floor, Not a Throne: A Better Way to Think About Generational Wealth
When researchers randomized wealth to parents, their children's skills were unaffected. Inheritance does cut paid work, by 4.4 points at the retirement margin. What the evidence says to leave.
Concept14 min readCalculator
What "Tax Alpha" Actually Means, and Why 1% a Year Is the Wrong Number
The headline 1.08% is before costs and falls to 0.82% with the wash-sale rule. The same harvested loss can be worth $238 or $12,630 depending only on the exit.
Concept17 min readCalculator
The $408,000 Paycheck-to-Paycheck Illusion
The viral budget saves $46,000, pays $90,000 tuition, and calls $1 left over broke. A line-by-line audit of where the $408k figure comes from.
Concept18 min readCalculator
403(b) vs. 457(b) vs. 401(k): Contribution Limits, Hidden Risks, and When to Use Both
There are two different 457(b)s, and one is an unsecured promise. The $49,000 stacking rule, the early-retirement bridge, and the creditor risk nobody mentions.
Strategy19 min readCalculator
Should H-1B Visa Holders Contribute to a 401(k)? A Cross-Border Decision Framework
Your visa horizon is not your investment horizon. When the 401(k) wins for temporary US residents, what happens if you leave, and a deep dive for India returnees.
Strategy14 min readCalculator
Trump Accounts for Children: Free $1,000 or Tax Trap? A DIY Investor's Guide
Trump Accounts give eligible children a $1,000 federal investment seed, but they are not Roth IRAs or 529 plans. The benefits, drawbacks, tax rules, and when to contribute.
Strategy14 min readCalculator
VBR vs AVUV: Why Expense Ratio Isn't the Whole Small-Cap Value Story
VBR is cheaper, but AVUV targets deeper small-cap value with profitability screens. What the research says, how VIOV and VTWV compare, and whether switching is worth the fee and tax.
Strategy13 min readCalculator
Does GPIQ Beat the S&P 500? Why a Nasdaq Covered-Call Fund's 'Monthly Cash Kicker' Is Not Alpha
Does GPIQ beat the S&P 500? On Goldman's own numbers it trailed since inception. Why the 'cash kicker' and '99% tax-deferred' pitch don't add wealth.
Strategy17 min readCalculator
Why I Avoid SCHD: Dividends, Taxes, and the Case for Systematic Value Funds
SCHD is a good fund I do not own. What its dividend screen buys, what a 3.2% forced yield costs in taxes, and why I tilt with AVUV, AVDV, and AVGV instead.
Strategy12 min readCalculator
SGOV vs USFR: Which Treasury Cash ETF Is Better?
SGOV and USFR are both Treasury cash ETFs, but not the same fund. SGOV holds 0-3 month T-bills; USFR holds floating rate notes. How they differ, how each is taxed, and which to pick, with an after-tax yield calculator.
Strategy18 min readCalculator
AVUV vs BSVO vs DFSV: Which Small-Cap Value ETF Is Best for DIY Investors?
AVUV is the cheaper, more liquid default; DFSV is the closest substitute and tax-loss partner; BSVO is the deeper-value specialist. Factor exposure, fees, capacity, and tax.
Strategy18 min readCalculator
How to Withdraw From a 401(k) or IRA Before 59½ Without the Penalty
Penalty-free is not cost-free. Rule of 55, 72(t), Roth ladders, loans, hardships, the first-home and medical exceptions, and the hidden cost of lost compounding. With a calculator.
Strategy20 min readCalculator
AQR Funds for Bogleheads: When Expensive Complexity Might Actually Be Worth It
AQR funds cost 50x a Vanguard index fund. When is that justified? An evidence-based look at QMHIX, QSPIX, Fusion, and tax-aware long/short for the cost-conscious DIY investor.
Strategy17 min readCalculator
Should You Hold REITs? Real Estate Tilt or Unnecessary Sector Bet
You already own REITs at market weight inside VTI and VT. A dedicated sleeve is an optional tilt. When it makes sense, and which account to hold it in.
Strategy15 min readCalculator
Don't Automatically Roll Over Your Old 401(k): A DIY Guide to Fees, Backdoor Roths, and Asset Protection
61% of IRA owners hold rollover assets, but rolling your old 401(k) to an IRA can break your backdoor Roth and cost you ERISA protection. A fiduciary-style framework, with a decision tool.
Strategy17 min readCalculator
How to Sell Stocks, Mutual Funds, and ETFs Tax-Efficiently: SpecID and Tax Lots
Your broker's default cost-basis method silently picks your taxable gain. Learn SpecID, FIFO vs HIFO vs average cost vs MinTax, and how lot selection cuts the tax when you sell or rebalance.
Strategy15 min readCalculator
If Dimensional Gets Sold, Should Factor Investors Care? The Hidden Risk of Bespoke ETFs in Taxable Accounts
A rumored DFA sale is no reason to panic-sell, but it exposes a risk DIY investors miss: fund-sponsor and strategy-drift risk, plus the tax lock-in of bespoke factor ETFs in taxable accounts.
Strategy14 min readCalculator
Funding the Down Payment: Gift, Family Loan, or Sell the Stock?
Where the down-payment cash comes from changes the tax and liquidity cost more than the monthly payment. Compare selling appreciated stock, a family gift, and a family loan for a high-income tech buyer.
Strategy16 min readCalculator
Should Grandparents Open Their Own 529? State Tax Benefits, FAFSA Rules, and a Decision Framework
Should grandparents open their own 529 or fund a parent's plan? See the state tax math, new FAFSA rules, gift tax limits, and a multi-state case study.
Strategy15 min readCalculator
Mega Backdoor Roth Before 59½: What Comes Out, What's Taxed, What's Penalized
MBDR dollars before 59½ live in three places: after-tax 401(k), Roth 401(k), Roth IRA. Each has its own ordering rules, 5-year clocks, and penalty math. Walk through your own numbers with the simulator.
Strategy15 min readCalculator
When to Sell a Winning Stock: The Question Without a Good Answer
Buying is the easy half. Selling a lucky winner means navigating taxes, anchoring, regret, and concentration. What the evidence supports.
Strategy15 min readCalculator
Donate Appreciated Stock or Use a DAF? The Tax Math and Where the Strategy Is Oversold
Donating appreciated stock is tax-efficient. A DAF can be a useful wrapper. Neither makes charity free. The mechanics, the 2026 OBBB changes (0.5% AGI floor, 35% deduction cap, $1k/$2k non-itemizer cash), and an after-tax cost calculator.
Strategy14 min readCalculator
AVGV Review: A One-Ticker Global Value Tilt for DIY Investors
AVGV bundles a global value, profitability, and smaller-cap tilt into one ETF that rebalances itself. A deep-dive review and a calculator comparing AVGV to a DIY basket of Avantis ETFs.
Strategy16 min readCalculator
Do You Actually Need Direct Indexing?
Direct indexing is heavily marketed to high earners, but ETF tax-loss harvesting already captures most of the value for many. A skeptical primer comparing ETF TLH, long-only DI, and long/short TALS, with an interactive decay visualizer.
Strategy14 min readCalculator
Cash vs Equity Election: When Your Employer Lets You Convert Future Awards
Some employers let you swap future equity for fixed cash on the same vesting schedule. That is a forward sale of single-employer risk. With a decision tool.
Strategy13 min readCalculator
How Often Should You Rebalance Your Portfolio? An Evidence-Based Answer
Vanguard's 1926-2009 data shows monthly, quarterly, and annual rebalancing produce near-identical risk-adjusted returns. The real questions are bands, cash flow, and taxes. With an interactive checker.
Strategy7 min read
Sell Your RSUs at Vest: The Cash-Bonus Test for Tech Workers
When RSUs vest, the rational default is sell-all and diversify. Sell-to-cover and deposit-cash leave you holding a concentration bet. The cash-bonus test.
Strategy13 min readCalculator
Tax-Aware Long-Short: Real Tax Alpha or Complex Marketing?
TALS for HNW taxable investors: AQR's loss-capacity research, the gain-deferral surprise, Section 1259 caveat, SMA pass-through, and a hurdle calculator that refuses to estimate alpha.
Strategy16 min read
Roth 401(k) as Vault, Roth IRA as Valve: Asset Protection vs. Withdrawal Flexibility
ERISA-protected Roth 401(k) is the accumulation vault. Roth IRA ordering rules are the withdrawal valve. The sequencing strategy + 5-year clock and pro-rata gotchas, with a withdrawal-path comparator.
Strategy17 min readCalculator
Covered Calls Are Not Free Income: What XYLD, QYLD, JEPI, and JEPQ Actually Cost You
Covered-call ETFs distribute 8-12% per year while the underlying strategy earns far less. Here's the academic evidence, the tax drag, and who they actually fit.
Strategy15 min read
The Order of Investing Operations: Where Your Next Dollar Should Go
A default savings waterfall from emergency fund to taxable brokerage, plus explicit branches for high earners with mega-backdoor access, self-employed savers, and house buyers in the next 3 years.
Strategy16 min read
The Mega Backdoor Roth Is a Much Bigger Deal Than the Backdoor Roth IRA
Mega Backdoor Roth uses the much larger 401(k) annual additions limit, not the IRA limit. A plain-English walkthrough plus a calculator for your actual room.
Strategy18 min readCalculator
The Best Inflation Hedges Are Boring: Not Stocks, Gold, or Bitcoin
Keeping up with inflation long-term is not hedging inflation when you need it. The real answer is explicit CPI-linked assets (I Bonds and TIPS) plus fixed-rate debt as the underrated liability-side hedge. Includes an after-tax real yield calculator.
Strategy22 min readCalculator
RSU Withholding Calculator: What Federal Rate Should You Choose at Each Vest?
The 22% withheld at your RSU vest is not your tax rate. Solve for the federal rate you need from YTD withholding, remaining vests, and the IRS safe harbor.
Strategy14 min readCalculator
The HSA Investing Strategy: Triple Tax Advantage for High Earners
Only 15% of HSA holders invest their funds. The rest are leaving the most tax-advantaged account in America sitting in cash. Here is the receipt hoarding strategy, the math, and who it is (and is not) for.
Strategy16 min readCalculator
The Tax-Advantaged Trifecta: Mega Backdoor Roth, Backdoor Roth IRA, and HSA
Single-earner married households can save $95,750 in tax-advantaged accounts in 2026; with two 401(k)s + Mega Backdoor access, the ceiling rises to $167,750. The math, the order of operations, and a calculator that handles single, dual-earner, and asymmetric cases.
Strategy18 min read
Tax-Aware Decumulation: A Guide for Self-Directed High Earners
For high earners, early retirement is not a 4% rule problem. It is a multi-decade tax-management challenge across income brackets, NIIT, IRMAA, ACA subsidies, and Roth conversions. Here is the framework.
Strategy16 min readCalculator
Roth vs. Traditional 401(k) and IRA: The Tax Math That Actually Matters
The answer depends on one number: your break-even retirement tax rate. Use the interactive calculator to find yours, see 2026 brackets, and learn why tax diversification matters more than picking the 'right' account.
Strategy16 min read
529 vs. Taxable Brokerage: Which Account Wins for College Savings?
A 529 plan is not always the best choice. See the after-tax math for three families at different tax brackets and time horizons, learn the nine drivers that determine the winner, and find out when a taxable brokerage actually comes out ahead.
Strategy14 min readCalculator
Tax-Loss Harvesting: How to Turn Portfolio Losses Into Tax Savings
Learn how tax-loss harvesting works, from wash sale rules and capital loss netting to replacement fund strategies. See a worked example of the tax benefit calculation and understand when TLH is worth the effort.
Strategy12 min readCalculator
RSU Tax Strategy: What Engineers Get Wrong About Equity Compensation
RSU vests are taxable income that can push you into a higher bracket. Learn the sell-vs-hold framework, how to use tax-loss harvesting when diversifying, and the common mistakes engineers make with equity comp.
Strategy13 min read
Roth Conversion Ladder: A Step-by-Step Strategy
How early retirees use Roth conversion ladders to access retirement funds penalty-free while minimizing lifetime taxes.
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Disclaimer: This page is for educational and informational purposes only and is not financial, investment, tax, or legal advice. Summitward is not a registered investment adviser, broker-dealer, or financial planner, and no fiduciary relationship is created by your use of it. Consult a qualified professional before acting. Past performance and model projections do not guarantee future results. Provided as is, without warranty of any kind; see our Terms of Service for limitations of liability.