Tax Loss Harvester - Best Practices

Before configuring rules or harvesting opportunities, define the client’s tax objective clearly. Decide whether the goal is to offset realized gains, reduce ordinary income, or manage future tax liabilities. Harvest rules should reflect this strategy rather than react to short-term market movement.

Best practice:

Revisit short- and long-term tax goals at least annually or after major portfolio changes.

Account Groups determine how wash sales are monitored. Grouping accounts too broadly can reduce harvesting opportunities, while grouping too narrowly can increase wash sale risk.

Best practice:

Group only accounts that truly share a tax return and investment strategy. Avoid combining unrelated accounts solely for convenience.

Custodian support for Versus Specific Purchase (VSP) materially impacts harvesting outcomes.

Best practice:

Maintain separate rule sets when working across custodians with different capabilities.

Overly aggressive thresholds can lead to excessive trading with minimal tax benefit, while overly conservative thresholds may result in missed opportunities.

Best practice:

Set thresholds that balance tax impact, trading costs, and portfolio turnover. Dollar-based rules are often more effective for targeted tax management, while percentage-based rules can scale across portfolios of different sizes.

Replacement securities directly affect portfolio exposure during the wash sale period.

Best practice:

Choose replacements that maintain similar market exposure without being substantially identical. Periodically review default replacement securities to ensure they still align with portfolio objectives.

Automatically reopening positions can help maintain long-term portfolio alignment, but it may not be appropriate in all cases.

Best practice:

Enable automatic reopening for model-managed portfolios where alignment is critical. For advisor-managed accounts, plan for manual rebalancing after exclusions expire.

Tax-loss harvesting is most effective when monitored over time rather than treated as a one-time event.

Best practice:

Review the View Harvest Requests page regularly to confirm that exclusions expire as expected and replacement instructions are still appropriate.

Frequent harvesting of small losses can increase operational complexity without delivering meaningful tax benefits.

Best practice:

Prioritize larger, more impactful losses and avoid harvesting purely for activity’s sake.

Tax-loss harvesting should complement—not override—portfolio construction and risk management.

Best practice:

Evaluate the impact of harvesting on diversification, sector exposure, and tracking error, especially when using replacement securities.

Market conditions, client tax situations, and portfolio structures evolve over time.

Best practice:

Periodically review Account Groups, Harvest Rules, and outcomes to ensure the strategy remains aligned with client objectives and current market conditions.