Best Retirement Planning Software in 2026: What Actually Matters

The Capabilities That Separate Good from Adequate

In retirement planning software, the gap between what appears comprehensive and what actually is comprehensive often comes down to these specific capabilities:

1. Monte Carlo depth: does the simulation use actual historical return distributions (not just average returns), and does it model the correlation between stocks, bonds, and inflation?

2. Social Security current law compliance: are file-and-suspend and restricted applications correctly disabled for those born after relevant cutoff dates? Is the earnings test modeled correctly?

3. RMD accuracy: does the tool use SECURE 2.0 RMD ages (73/75, not 72) and include the Roth 401(k) RMD elimination effective 2024?

4. IRMAA awareness: Roth conversion analysis is meaningless without modeling the Medicare premium surcharges that conversions can trigger 2 years later.

Tools that get these details wrong produce inaccurate results, sometimes by tens of thousands of dollars.

How to Evaluate Any Retirement Planning Tool

When evaluating retirement planning software, run this test: input a 64-year-old married couple with a defined benefit pension, a traditional IRA, and Social Security for both spouses. Request Roth conversion analysis and Social Security optimization.

A good tool will: - Show the pension offset effect on asset allocation (pension acts as bond-equivalent) - Display Social Security strategies for both spouses with survivor benefit consideration - Model the Roth conversion window between retirement and SS/RMD start - Flag IRMAA thresholds in the conversion analysis

A basic tool will give a Monte Carlo success rate and a Social Security claiming suggestion without integrating these factors.