Free Tax Tools, Rules & Tips (2026)
Every TaxSaveIQ planner and optimizer in one place — plus the 2026 tax rules, IRS code references, examples, and money-saving tips behind them. All free, no login, updated for the OBBBA.
The tools
How these tools save you money
Most people overpay tax not because of the rate they pay, but because they miss deductions and time decisions poorly. These tools attack both. The planning tools — the year-end checklist, Roth conversion, and tax-loss harvesting calculators — help you act before December 31, when the biggest levers (retirement contributions, harvesting losses, bracket-filling conversions) are still available. The estimators — the federal, self-employment, and refund calculators — show you the number in advance so there are no surprises at filing.
Under the hood they apply the 2026 rules below: the OBBBA deductions on Schedule 1-A, the 20% QBI deduction for the self-employed, capital-gains rates, the standard deduction, and the SECURE 2.0 RMD age. Knowing which rule applies to you is half the battle — the reference table shows the tax code behind each, and links to the tool that runs the math.
2026 tax rules & IRS codes at a glance
The main federal rules these tools apply, with the tax-code reference and the tool that calculates it.
| Rule | Tax code | 2026 detail | |
|---|---|---|---|
| No Tax on Tips | Sch 1-A · IRC §224 | Deduct up to $25,000 of qualified tips | Open → |
| No Tax on Overtime | Sch 1-A · IRC §225 | Deduct the FLSA premium, up to $12,500 / $25,000 | Open → |
| Car Loan Interest | Sch 1-A · IRC §163(h) | Up to $10,000 on a new, US-assembled vehicle | Open → |
| Enhanced Senior Deduction | Sch 1-A | $6,000 per person age 65+ (through 2028) | Open → |
| Standard Deduction | IRC §63 | $16,100 single · $32,200 MFJ · $24,150 HoH | Open → |
| QBI Deduction | IRC §199A | 20% of qualified business income (Form 8995) | Open → |
| Long-Term Capital Gains | IRC §1(h) | 0% / 15% / 20% by taxable income | Open → |
| Self-Employment Tax | IRC §1401 | 15.3% on 92.35% of net profit | Open → |
| Required Minimum Distributions | IRC §401(a)(9) | Begin at age 73 (SECURE 2.0) | Open → |
| Home Sale Exclusion | IRC §121 | Exclude $250,000 / $500,000 of gain | Open → |
| Child Tax Credit | IRC §24 · Sch 8812 | Up to $2,200 per child under 17 | Open → |
| HSA Deduction | IRC §223 · Form 8889 | Triple tax-advantaged (deduct, grow, spend) | Open → |
Figures reflect 2026 law (OBBBA · Rev. Proc. 2025-32). Caps and thresholds may be adjusted by IRS guidance — verify current-year numbers before filing.
Worked examples
8 tax-saving tips for 2026
- Max your pre-tax accounts — 401(k) and HSA contributions cut taxable income dollar-for-dollar.
- Harvest investment losses before December 31 to offset gains plus $3,000 of ordinary income.
- Do a bracket-filling Roth conversion in low-income years to shrink future RMDs.
- Claim the new OBBBA deductions (tips, overtime, car-loan, senior) on Schedule 1-A — even with the standard deduction.
- Right-size your W-4 so you don't hand the IRS an interest-free loan or get a surprise bill.
- Self-employed? Track mileage, a home office, and the 20% QBI deduction — they lower income and SE tax.
- Bunch charitable gifts, or use the new non-itemizer deduction, to get value from giving.
- Take your RMD on time — the penalty for missing it is 25% of the shortfall.
Frequently asked questions
Are these tax tools really free?
Yes. Every calculator and planner on TaxSaveIQ is free and requires no account or login. They run in your browser and are supported by the site, not by charging you.
Are the estimates accurate?
They use 2026 federal tax law — brackets, the standard deduction, FICA, OBBBA deductions, and IRS tables — to give a close educational estimate. They aren't a filed return and don't capture every credit, state tax, or edge case, so verify with the IRS or a professional before filing.
Which tool should I start with?
If you're not sure, start with the Tax Savings Action Plan — it asks a few questions and ranks your best moves. From there, the W-4 optimizer, year-end checklist, and the calculator for your situation take you deeper.
Do you store or sell my data?
No. TaxSaveIQ is privacy-first — the calculators compute in your browser and we don't sell personal data. You can use every tool without creating an account.
Are the tools updated for the 2026 OBBBA changes?
Yes. They reflect the One Big Beautiful Bill Act — no tax on tips and overtime, the car-loan interest deduction, and the enhanced senior deduction — plus the 2026 brackets and limits.
Can these replace a CPA or tax software?
No. They're educational planning tools to help you understand and estimate your taxes. For filing and personalized advice, use tax software or a qualified professional.