Annual Rebalancing: Keeping It Simple

You set your allocation. You automated your contributions. Now comes the one annual task that requires your attention: rebalancing.

Why You Need to Rebalance

Over time, your portfolio drifts from your target allocation. If stocks have a great year and bonds have a flat year, your portfolio shifts from 80/20 to maybe 88/12. You now have more risk than you intended.

Rebalancing means selling what has grown beyond its target and buying what has fallen below. It is a mechanical process of selling high and buying low.

A Simple Rebalancing Process

Once per year, on the same date (your birthday, January 1st, whatever):

1. Check your actual allocation vs. your target
2. If any asset class is more than 5% off target, rebalance
3. In a tax-advantaged account (IRA, 401k): sell the over-weighted position and buy the under-weighted one
4. In a taxable account: direct new contributions toward the under-weighted position first to avoid triggering taxable events

The Rebalancing Bonus

Rebalancing forces disciplined sell-high, buy-low behavior. When stocks crash and bonds hold, rebalancing automatically moves money from bonds (which held value) into stocks (which are on sale). This is exactly the right thing to do.

Research shows that rebalanced portfolios tend to outperform unbalanced portfolios by 0.5-1% annually over long periods -- not because rebalancing is magic, but because it enforces discipline.

Keep It Simple

Do not rebalance more than once per year. Do not rebalance based on market predictions. Do not rebalance if your portfolio is within 5% of target.

The goal is not perfect optimization. The goal is maintaining roughly the risk level you chose and building the habit of annual review.