Tax planning is not something you should think about only in January and February. For truck drivers, especially owner-operators, year-round tax planning is essential for managing cash flow, avoiding penalties, and maximizing deductions. When you spread your tax responsibilities across the entire year, you reduce stress during tax season and put yourself in a position to save money. This calendar breaks down exactly what you need to do each month to stay on top of your truck driver taxes.
January: quarterly estimated tax Deadline and Year-End Prep
January 15 is the due date for your fourth-quarter estimated tax payment. This payment covers income earned from September through December of the previous year. If you underpaid your estimated taxes during the year, this is your last chance to make up the difference and avoid an underpayment penalty. Take the time to calculate your total prior year income and compare it to what you have already paid.
January is also the time to start organizing your prior year's tax documents. Begin gathering 1099 forms from brokers and carriers, W-2 forms if you had any employment income, and records of business expenses. The earlier you start, the smoother your tax filing will be. If you use accounting software, reconcile your accounts for the year and make sure all transactions are categorized correctly.
Pro Tip: Set a recurring calendar reminder for January 10 each year to finalize your Q4 estimated tax payment. This gives you a five-day buffer before the January 15 deadline. Late estimated tax payments accrue penalties from the original due date, even if you pay them a few days late.
February: Document Collection and Early Filing
By February, most of your 1099-NEC forms should have arrived. Brokers and carriers are required to send them by January 31. Review each form carefully for accuracy. If a 1099 form shows incorrect income, contact the issuer immediately to request a correction. If you are missing a 1099, log into your factoring company portal or broker dashboard to download transaction summaries.
Consider filing your taxes early this month, especially if you are expecting a refund. The IRS typically begins accepting returns in late January, and early filers get their refunds faster. Filing early also reduces the risk of identity theft, as fraudsters cannot file a fake return in your name if yours is already processed. If you use a tax professional, schedule your appointment now before their calendar fills up.
March: Review Prior Year Return and Plan Ahead
If you have already filed your return, March is the time to review it for lessons learned. Look at your effective tax rate, your total deductions, and your estimated tax payments. Did you overpay or underpay? Was your withholding accurate? Use this information to adjust your estimated tax payments for the current year.
If you have not filed yet, do not wait until April. The earlier you file, the sooner you know your tax situation and can plan accordingly. March is also a good time to review your retirement contribution strategy. If you have not yet made a prior-year IRA contribution (you have until April 15), now is the time to do it.
April: Tax Day and First Quarterly Payment
April 15 is the most important tax date of the year. Your prior year tax return is due, and your first-quarter estimated tax payment for the current year is due on the same day. This makes April a double-deadline month that requires careful planning.
For your prior year return, file on time even if you cannot pay the full balance. An extension to file (Form 4868) gives you until October 15 to file but does not extend the time to pay. For your Q1 estimated payment, calculate 25% of your expected annual tax liability and send it by April 15. If your income fluctuates significantly, use the annualized installment method to pay based on your actual quarterly income.
May: IFTA Q1 Return and Mid-Year Review
April 30 was the deadline for your first-quarter IFTA return, so by May you should have filed it. Review your IFTA filing to ensure your mileage and fuel data are accurate. IFTA discrepancies can trigger audits, so double-check your records. If you missed the April 30 deadline, file as soon as possible to minimize late penalties.
May is also a good month for a mid-year business checkup. Review your revenue trends, expense patterns, and profitability. Are you on track to meet your income goals? Are there expenses you can reduce or optimize? Adjust your business strategy now to maximize your year-end results.
June: Estimated Tax Q2 Payment
June 15 is the due date for your second-quarter estimated tax payment. By now, you should have a good picture of your year-to-date income. If your earnings are higher than expected, increase your Q2 payment to avoid underpayment penalties. If earnings are lower, you can reduce your payment but be careful not to underpay significantly.
June is also a great time to review your health insurance and HSA contributions. If you have a high-deductible health plan, make sure you are maximizing your HSA contributions. The tax savings from HSA contributions can be significant, and the money grows tax-free for future medical expenses.
July: IFTA Q2 Return and retirement planning
July 31 is the deadline for your second-quarter IFTA return. By now, IFTA filing should be a routine part of your quarterly workflow. If you use ELD data integrated with IFTA reporting software, the process should take less than an hour.
July is also a good month to evaluate your retirement savings strategy. Solo 401(k) plans and SEP IRAs allow for significant tax-deferred contributions. For 2026, the solo 401(k) contribution limit is $23,000 in employee contributions ($30,500 if age 50 or older), plus up to 25% of net self-employment income as employer contributions. A SEP IRA allows contributions of up to 25% of net income, capped at $69,000. Both options reduce your current taxable income while building retirement wealth.
Important: Solo 401(k) contributions must be elected by December 31, but you have until your tax filing deadline (including extensions) to actually make the contribution. SEP IRA contributions can be made up to your tax filing deadline. Plan your contributions early so you can set aside the funds throughout the year.
August: Mid-Year Tax Projection
August is the perfect time for a comprehensive mid-year tax projection. Calculate your year-to-date net income and estimate your full-year income based on current trends. Compare your estimated tax payments to what you will likely owe. If there is a gap, adjust your Q3 estimated payment to compensate.
This is also a good time to review your business expense tracking. Are you capturing all deductible expenses? Common deductions that truck drivers miss include cell phone expenses (a portion of your plan for business use), parking and tolls, scale fees, lumper fees, and the cost of small tools and supplies. Reviewing your categories mid-year helps you catch missed deductions while you can still improve your tracking.
September: Estimated Tax Q3 Payment
September 15 is the due date for your third-quarter estimated tax payment. This is often the largest payment of the year because many truck drivers earn more during the summer and fall months. By September, you should have a reliable projection of your full-year income, so make this payment count.
September is also a good time to review your business structure. If you have been operating as a sole proprietor but your income has grown significantly, consider whether forming an LLC or electing S-corp status would save you money. These decisions take time to implement, so planning in the fall ensures you are ready for January 1. Read our guide on how to start a trucking LLC for more information on business structure options.
October: IFTA Q3 Return and Extension Deadline
October 15 is the filing deadline for anyone who requested an extension on their prior year tax return. If you filed Form 4868 in April, your extended return is due now. Do not miss this deadline, as there are no further extensions available for individual returns.
October 31 is the deadline for your third-quarter IFTA return. By now, IFTA filing should be routine. Make sure you are keeping detailed mileage records by jurisdiction, as the fourth quarter will close out your IFTA year.
November: Year-End Tax Planning
November is the most important month for proactive tax planning. With two months left in the year, you still have time to make strategic moves that reduce your tax liability. Review your year-to-date income and project your full-year taxable income. If you are on track for a higher-than-expected tax bill, consider:
- Deferring income — if possible, delay some December shipments to January to push income into the next tax year
- Accelerating expenses — purchase needed equipment, pay for maintenance, or buy supplies before December 31
- Maximizing retirement contributions — increase your solo 401(k) or SEP IRA contributions
- Prepaying state and local taxes — if you itemize, prepaying property taxes or state estimated taxes can increase your deductions
December: Final Quarter Preparations
December is the last chance to make tax-saving moves for the current year. Finalize any equipment purchases you plan to make. If you need a new ELD device, tires, or major truck repairs, doing them before year-end ensures you can deduct the cost on this year's return.
Review your quarterly estimated tax payments for the year. If you have underpaid, increase your Q4 payment due January 15 to minimize penalties. Calculate your total mileage for the year and ensure your mileage log is complete. If you use the standard mileage rate (67 cents per mile for 2026), accurate mileage records are essential for claiming the deduction. For a complete overview of maximizing your deductions throughout the year, see our guide on truck driver tax deductions.
Finally, set up your bookkeeping system for the new year. January 1 is a fresh start, and beginning the year with organized records makes every subsequent month easier. Clean up your chart of accounts, set up recurring expense categories, and schedule your estimated tax payment reminders for the coming year.
Tax Deadlines Quick Reference
- January 15 — Q4 estimated tax payment due
- January 31 — 1099-NEC forms must be sent by carriers and brokers
- April 15 — Prior year tax return due & Q1 estimated tax payment due
- April 30 — Q1 IFTA return due
- June 15 — Q2 estimated tax payment due
- July 31 — Q2 IFTA return due
- September 15 — Q3 estimated tax payment due
- October 15 — Extended prior year return due
- October 31 — Q3 IFTA return due
- January 31 — Q4 IFTA return due (for Q4 of prior year)
Staying on top of these deadlines throughout the year prevents last-minute scrambling and costly penalties. Bookmark this calendar and refer to it monthly to keep your truck driver taxes on track. For more detailed guidance on specific tax topics, explore our other articles on medical expense deductions for truck drivers and other industry-specific tax strategies.
Real Dollar Impact of Missing Deadlines
| Missed Deadline | Typical Penalty | Real Cost Example |
|---|---|---|
| IFTA Q1 filed 60 days late | 10% of tax or $50 min | $500 tax x 10% = $50 + interest = ~$65 |
| Form 2290 filed 90 days late | 5% per month + registration issues | $550 HVUT x 15% = $82.50 + lost revenue from stopped truck |
| Estimated tax underpayment (year-long) | IRS Form 2210 penalty | On $10,000 underpayment: ~$400-800 penalty |
| Individual return filed late without extension | 5%/month up to 25% | $8,000 owed x 25% = $2,000 max penalty |
For more details on specific deadlines, see our truck tax calendar and owner-operator tax guide.