No. The compound-growth projection runs in your existing widget, which handles compound interest, Monte Carlo simulation, or whatever modeling approach you have built. SleekRank reads the variant row from your sheet and renders the surrounding copy: account name, contribution limits, tax treatment, audience framing, and FAQ entries. The widget consumes the contribution_limit and catchup_limit columns as parameters.

Edit the contribution_limit and catchup_limit columns in the affected rows each January when the IRS publishes new figures. Every account page picks up the new limits at the next cache flush. The widget reads the limit from the row data, so the form defaults and the maximum-allowed values stay current automatically. No code change, no per-post editing sweep.

Yes. Add an employer_match_default column with a percentage and a match_cap column with the salary cap. /retirement/401k-calculator/ ships with a 50% match up to 6% of salary default that matches a common employer profile. Users can override the defaults in the widget. The intro and FAQ columns should clarify that matching practices vary widely and that users should check their plan documents for the actual employer policy.

Use a tax_treatment column that the widget reads to switch between pre-tax-contribution and post-tax-contribution modes. The projection output differs because Roth growth is tax-free at qualified withdrawal while traditional growth is taxed as ordinary income at withdrawal. The intro and FAQ columns explain the user-facing tradeoff, often the contribution-now-versus-withdrawal-later tax decision.

Add a phase_out_start and phase_out_end column to the Roth IRA row. The widget reads them and shows a warning when the user enters income above the phase-out range, with copy explaining the backdoor Roth conversion alternative. The FAQ column for /retirement/roth-ira-calculator/ should explain the household-income-based phase-out and the marriage-filing-jointly versus single thresholds in detail.

Use a catchup_limit column per account row. The widget reads it and adds a 50-or-older toggle that raises the maximum contribution to base plus catch-up when toggled on. /retirement/401k-calculator/ ships with the current catch-up amount on top of the base employee deferral limit. The FAQ should explain that the catch-up applies to the calendar year the user turns 50, not the user's actual birthday.

Yes. Solo 401k has employee-deferral plus employer-profit-sharing components that combine up to the total limit. Add two columns, employee_limit and employer_share_percent, and have the widget compute the maximum allowable combined contribution based on net self-employment earnings. The intro for /retirement/solo-401k-calculator/ should explain the two-bucket structure with worked examples.

Comfortably. Twenty variant pages with substantive account-specific content is well within both editorial and crawl budgets. The sheet stays a single readable document. The widget stays a single artifact. Adding a new account like SIMPLE IRA or 457b is a sheet row plus a configured tax-treatment flag. The bottleneck is editorial: writing genuinely account-specific intro and FAQ content for each new variant rather than templating it.