# BestSolo401k > Independent educational resource helping self-employed individuals and small business owners understand, compare, and set up Solo 401k retirement plans. ## Guides - [Solo 401k Basics: The Complete Guide](https://bestsolo401k.com/basics): Comprehensive overview of Solo 401k plans covering eligibility, contribution structure, tax advantages, setup process, and comparison with SEP IRAs and Traditional IRAs. - [Solo 401k Eligibility](https://bestsolo401k.com/basics/eligibility): Explains who qualifies for a Solo 401k by business structure, employee thresholds, spouse participation rules, and common scenarios like side gigs and independent contractors. - [Solo 401k Contribution Limits](https://bestsolo401k.com/basics/contribution-limits): Current year-by-year contribution limits (2024-2026) broken down by age group, including SECURE 2.0 enhanced catch-up provisions for ages 60-63. - [2026 Contribution Limits](https://bestsolo401k.com/basics/contribution-limits/2026): Specific 2026 limits — $24,500 employee deferral, $72,000 total (under 50), $80,000 (50+), $83,250 (ages 60-63). - [Solo 401k FAQ](https://bestsolo401k.com/basics/faq): Frequently asked questions about Solo 401k plans covering common concerns and misconceptions. ## Advanced Topics - [Roth vs Traditional Solo 401k](https://bestsolo401k.com/advanced/roth-vs-traditional): Side-by-side comparison of Roth and Traditional Solo 401k options with decision framework based on tax bracket, flexibility, and estate planning goals. - [Mega Backdoor Roth Strategy](https://bestsolo401k.com/advanced/mega-backdoor-roth): Step-by-step guide to maximizing Roth savings through after-tax contributions and in-plan conversions, with 2025 limits up to $46,500 in additional Roth space. - [Solo 401k Loans](https://bestsolo401k.com/advanced/solo-401k-loans): Complete guide to borrowing from a Solo 401k — loan limits (lesser of 50% or $50,000), repayment terms, interest rates, tax implications, and provider requirements. ## Providers - [Best Solo 401k Providers 2026](https://bestsolo401k.com/providers): Comparison of 9 providers across two categories — prototype plans (Fidelity, Schwab, E*TRADE, Ascensus) and non-prototype plans (MySolo401k, RocketDollar, Nabers Group, Ubiquity, Carry) with feature matrix and fee comparison. - [Provider Head-to-Head Comparisons](https://bestsolo401k.com/providers/compare): 16 individual head-to-head provider comparison pages covering fees, features, Roth options, loan provisions, and alternative investment support. ## Tools - [Solo 401k Contribution Calculator](https://bestsolo401k.com/tools/contribution-calculator): Interactive calculator that estimates maximum contributions based on business structure (sole prop vs. S-Corp/C-Corp), age, and net income for 2025 and 2026. ## Resources - [Solo 401k Glossary](https://bestsolo401k.com/glossary): Definitions of 140+ retirement planning terms covering contribution types, account structures, distribution rules, tax concepts, and regulatory frameworks. - [Blog](https://bestsolo401k.com/blog): Articles on Solo 401k topics including IRS rule changes, strategy comparisons, and retirement planning insights. - [What Is a Solo 401k (Video)](https://bestsolo401k.com/videos/what-is-solo-401k): Video explainer covering Solo 401k fundamentals for visual learners. ## Key Facts - Founded by James, a self-employed entrepreneur who created the site to provide clear Solo 401k guidance - Independent educational resource — not a financial advisor or plan provider - Covers 9 Solo 401k providers with 16 head-to-head comparisons - 140+ term glossary of retirement planning terminology - Content updated annually for current IRS contribution limits and rules - Focus areas: eligibility, contributions, tax strategies, provider selection, and advanced techniques ## Contact - Website: https://bestsolo401k.com - Contact form: https://bestsolo401k.com/contact - About: https://bestsolo401k.com/about