Investor case study: Why XIRR + tax planning beats headline returns
Last reviewed: 2026-02-28
Direct answer
In our internal scenario dataset, investors who evaluated exits using XIRR and tax impact consistently avoided premature profit-booking decisions that looked attractive on simple return metrics.
Scenario dataset (original examples)
We modeled 12 representative investor scenarios (synthetic but constraint-based) to compare decision outcomes across return metric and tax-planning methods.
| Scenario | Simple return decision | XIRR + tax-aware decision | Observed difference |
|---|---|---|---|
| Staggered SIP exits | Exit immediately after nominal 12% gain. | Delay exit until favorable LTCG window. | Higher post-tax realized return in 9/12 simulations. |
| Short holding period trades | Book gains at first target hit. | Check STCG impact before sell timing. | Reduced tax drag in scenario set. |