Mid-Year Portfolio Rebalancing Checklist — How to Check Asset Allocation Across All Brokerages

Step 1: See Every Account in One Place

This is the step most rebalancing guides skip — and it is the hardest one for multi-brokerage investors. Before you can rebalance, you need to know exactly what you hold and where.

If you have a 401(k) at Fidelity, a taxable account at Robinhood, and an IRA at Schwab, you have three different logins and three different formats. Manually summing them means logging into each one, exporting or copying positions, and reconciling differences in how each brokerage reports holdings.

A brokerage-synced spreadsheet solves this in one step. Connect each brokerage once via secure OAuth, and your holdings appear in a single Google Sheet. Use a formula like =IVS_BROKERAGE("value") to see your total portfolio value across every account instantly.

Step 2: Calculate Your Current Allocation

Once you can see everything in one place, categorize each position by asset class. At minimum, you need three categories:

• Stocks — individual stocks, stock ETFs, stock mutual funds
• Bonds — bond ETFs, bond mutual funds, individual bonds, TIPS
• Cash & alternatives — money market funds, CDs, crypto, gold

Calculate each category as a percentage of your total portfolio. Your current allocation is what actually exists — not what you intended at the start of the year.

Charles Schwab's Portfolio Management Checklist recommends checking this at least annually. But after six months of a strong stock rally, checking at mid-year is prudent. A portfolio that started the year at 60% stocks may now be at 67% — taking on more risk than the retirement plan was designed for.

Step 3: Compare to Your Target

Your target allocation is the mix you chose based on your timeline, risk tolerance, and goals. A 30-year-old might target 90% stocks / 10% bonds. A 55-year-old might target 60/40. If you never set a formal target, now is the time.

The rule of thumb: if any asset class has drifted more than 5 percentage points from your target, it is time to rebalance. A 60/40 portfolio that has become 66/34 has crossed that threshold.

Important nuance: this calculation must span all of your accounts, not just one. If your Robinhood account is 100% stocks but your 401(k) is mostly bonds, your total allocation might be closer to target than any individual account suggests. This is exactly why seeing everything in one place matters.

Step 4: Rebalance Tax-Efficiently

Where you rebalance matters as much as whether you rebalance. Selling assets in a taxable brokerage account triggers capital gains taxes. Selling inside an IRA or 401(k) does not.

Best practice: do all your rebalancing trades inside tax-advantaged accounts whenever possible. If you need to sell stocks to buy bonds, make those trades in your IRA, not your taxable account.

If your taxable account is the only place you hold a certain asset class, consider using new contributions to buy underweight assets instead of selling existing positions. This avoids taxes while still moving your allocation back toward the target.

Step 5: Set a Reminder for December

Rebalancing is not a one-time event. Markets move constantly, and your allocation drifts with them. The most successful DIY investors check their allocation on a fixed schedule — mid-year and year-end — and only rebalance when drift exceeds the 5% threshold.

If you set up a brokerage-synced spreadsheet now, your December review will take five minutes instead of an afternoon. Your holdings will already be in the sheet, updated automatically. You will just open it, check the percentages, and decide whether to act.

Mid-Year Rebalancing Checklist (Quick Reference)

1. Consolidate all brokerage accounts into one view
2. Categorize every position by asset class (stocks, bonds, cash/other)
3. Calculate current allocation percentages
4. Compare to your target allocation
5. Identify assets that have drifted beyond the 5% threshold
6. Execute rebalancing trades (preferably in tax-advantaged accounts)
7. Set a calendar reminder for December 2026