Financial Literacy Month: 7 Tax Concepts Every Californian Should Master in 2026

April is Financial Literacy Month — and there has never been a year where understanding your taxes mattered more. The One Big Beautiful Bill Act (OBBBA), signed into law in mid-2025, is the largest overhaul of the federal tax code since the Tax Cuts and Jobs Act of 2017. New deductions, new forms, new thresholds, and an entirely new relationship between federal and California state taxes are affecting every taxpayer from San Diego to Sacramento.

At The Law Office of Pietro Canestrelli, we believe that informed taxpayers make better decisions — and better decisions lead to lower tax bills, fewer penalties, and far fewer encounters with the IRS. Whether you live in Temecula, Riverside, San Bernardino, or anywhere in California, here are seven tax concepts you need to understand in 2026.

1. California Does Not Conform to Most New Federal Tax Deductions

This is the single most important tax fact for Californians in 2026 — and the one most likely to cause confusion, errors, and unexpected tax bills.

When the OBBBA introduced new federal deductions for tips, overtime pay, auto loan interest, and an enhanced senior standard deduction, California deliberately chose not to adopt them. SB 711, enacted in October 2025, set the state’s Internal Revenue Code conformity date to January 1, 2025 — intentionally excluding the OBBBA provisions signed July 4, 2025.

What does this mean practically? If you’re a server in San Diego claiming the new no-tax-on-tips deduction on your federal return, that income is still fully taxable on your California return. If you’re a nurse in Riverside claiming the overtime deduction federally, California doesn’t recognize it. This creates a growing gap between your federal adjusted gross income and your California adjusted gross income — and if you’re not tracking both, you’re likely to underpay your state taxes.

This federal-state divergence affects income tax calculations for millions of Californians and is something every taxpayer — and every tax preparer — needs to understand clearly.

2. The SALT Deduction Cap Increased to $40,000 — But There’s a Phase-Out

For years, the $10,000 cap on State and Local Tax (SALT) deductions hit California taxpayers harder than almost anyone in the country. With state income tax rates up to 13.3% and some of the nation’s highest property taxes, many Californians were leaving thousands of dollars in deductions on the table.

The OBBBA raised the SALT cap to $40,000 — a meaningful improvement. But it’s not unlimited, and there are important details:

• The $40,000 cap applies to taxpayers with modified adjusted gross income (MAGI) under $500,000 (joint filers)
• Above $500,000 MAGI, the cap phases down by 30% of the excess — meaning high-income earners may get less benefit than they expect
• Even with the higher cap, many high-income Californians still pay more in state and local taxes than they can deduct

For business owners, the California Pass-Through Entity (PTE) elective tax remains one of the most powerful tools to work around the SALT cap entirely. The PTE tax (at 9.3%) is deductible at the entity level with no cap, and it’s been extended through 2030. Learn more about how the SALT changes affect you in our complete SALT deduction guide.

3. Estimated Taxes in California Follow a Different Schedule Than Federal

If you’re self-employed, a freelancer, a business owner, or anyone who pays estimated taxes, California’s payment schedule can trip you up. While the federal government splits quarterly payments evenly at 25% each quarter, California uses a 30/40/0/30 split:

• Q1 (April 15): 30% of your annual estimated liability
• Q2 (June 15): 40% of your annual estimated liability
• Q3 (September 15): 0% — no payment due
• Q4 (January 15): 30% of your remaining liability

The June 15 payment is the biggest single installment of the year. Taxpayers who follow the federal schedule and pay 25% each quarter unknowingly trigger California underpayment penalties — and the Franchise Tax Board assesses those penalties automatically.

If you’ve received an FTB penalty notice for estimated tax underpayment, our team can help you evaluate whether penalty abatement or a payment arrangement is available. Contact us to discuss your situation.

4. The New Schedule 1-A Is How You Claim OBBBA Deductions

The OBBBA introduced several new “above the line” deductions — meaning they reduce your adjusted gross income regardless of whether you itemize. But these deductions aren’t claimed on the standard Form 1040. Instead, they require a brand-new form: Schedule 1-A (Additional Deductions).

Schedule 1-A covers:

• No-tax-on-tips: Up to $25,000 per year for workers in 68 qualifying tipped occupations
• No-tax-on-overtime: Up to $12,500 ($25,000 joint) for FLSA-qualifying overtime pay
• Auto loan interest: Up to $10,000 in interest on loans for new U.S.-assembled vehicles
• Enhanced senior deduction: $6,000 ($12,000 joint) for taxpayers 65 and older

All four deductions have income phase-outs, generally beginning between $150,000 and $160,000 for single filers and $300,000 to $320,000 for joint filers. And remember: none of these deductions apply to your California state return.

If you filed your 2025 return before understanding these new deductions, you may benefit from an amended return. Our guide on tax amendments explains the process.

5. The IRS Is Using AI to Select Returns for Audit

The IRS now operates over 125 artificial intelligence and machine learning models to identify returns for examination, verify identities, detect fraud, and prioritize collections. Despite significant workforce reductions, the agency’s technology-driven enforcement capacity has actually increased.

AI-driven audit selection means the IRS can now:

• Cross-reference your return against third-party data (W-2s, 1099s, and the new 1099-DA for cryptocurrency) in near real-time
• Identify statistical anomalies in deductions, credits, and income reporting at scale
• Score returns using the Discriminant Information Function (DIF) system, which has been enhanced with machine learning capabilities
• Focus enforcement resources on high-income individuals (those earning over $400,000) and complex partnerships

This doesn’t mean you should be afraid to claim legitimate deductions — but it does mean accuracy and documentation are more important than ever. If you’re concerned about audit risk, our audit avoidance guide and IRS audit defense page explain how to protect yourself. You can also read about the IRS’s expanding use of AI in our article on IRS AI enforcement.

6. Cryptocurrency Is Now Reported to the IRS by Your Exchange

For years, crypto investors operated in a gray area when it came to tax reporting. That era is definitively over. Starting with tax year 2025, custodial crypto brokers — Coinbase, Kraken, Gemini, and others — are issuing Form 1099-DA to both the IRS and to taxpayers, reporting gross proceeds from digital asset sales and exchanges.

Key things to know:

• Cost basis reporting becomes mandatory for assets acquired on or after January 1, 2026
• For assets acquired before that date, or transferred between wallets, cost basis may be missing or reported as zero — which could dramatically overstate your taxable gains
• The IRS automated matching system will compare your 1099-DA data to your return, and discrepancies trigger CP2000 notices
• DeFi protocols and non-custodial wallets are not yet subject to 1099-DA reporting, but that doesn’t mean the income isn’t taxable

If you have cryptocurrency holdings and haven’t been reporting them properly, the cost of voluntary compliance is almost always lower than the cost of an IRS enforcement action. Read our detailed 2026 crypto tax reporting guide or our broader crypto tax guidance for more information.

7. You Have More Tax Debt Resolution Options Than You Think

One of the biggest financial literacy gaps we see — especially among taxpayers in Temecula, San Diego, Riverside, and San Bernardino — is the belief that if you owe the IRS, your only option is to pay in full immediately. That’s simply not true.

The IRS offers multiple formal programs for taxpayers who can’t pay their full liability:

• Installment Agreements: Monthly payment plans available for debts of virtually any size. Streamlined agreements (no detailed financial disclosure required) are available for debts under $50,000.
• Offer in Compromise (OIC): A settlement that allows you to resolve your tax debt for less than the full amount owed. The IRS accepted approximately 31% of OIC applications in recent years. See our OIC overview and acceptance guide.
• Currently Not Collectible (CNC) Status: If paying your tax debt would create a genuine financial hardship, the IRS can temporarily suspend all collection activity. Your debt remains on the books, but the 10-year collection statute continues to run.
• Penalty Abatement: The IRS’s First-Time Abatement program can eliminate failure-to-file and failure-to-pay penalties for taxpayers with a clean compliance history. Reasonable Cause abatement is available for those who can demonstrate circumstances beyond their control.

The California Franchise Tax Board also offers installment agreements and, in limited circumstances, its own settlement program. The EDD and CDTFA have their own resolution procedures as well.

The key is acting early. The more time you have, the more options are available — and the better the outcome. Learn more about your options on our tax debt resolution page.

Take Control of Your Tax Future This Financial Literacy Month

Financial literacy isn’t just about budgeting and saving — it’s about understanding the rules that govern how much of your income you keep, how the government can enforce collections, and what rights and options you have when things go wrong. In 2026, with the OBBBA reshaping federal taxes and California charting its own path, the stakes are higher than they’ve been in years.

At The Law Office of Pietro Canestrelli, we serve clients across Temecula, San Diego, Riverside, San Bernardino, throughout Southern California, and nationwide. Whether you need help understanding how the new tax laws affect your situation, resolving a tax debt, or defending against an IRS audit, our team of experienced tax attorneys is here to help.

Have questions about how these changes affect you? Contact our office to schedule a consultation. Your financial literacy starts with a conversation.