LLC Tax Deductions: 30+ Write-Offs Every Business Owner Should Be Claiming in 2026
A complete guide to LLC tax deductions — every legitimate write-off available to LLC owners, with IRC section references, estimated savings, and documentation requirements.
LLC Deductions
The One Big Beautiful Bill Act restored 100% bonus depreciation through 2029 — meaning you can immediately deduct the full cost of qualifying equipment, vehicles, and property in the year of purchase instead of depreciating over multiple years. This is one of the most powerful deductions available to LLC owners in 2026. Section 179 limits also increased to $1.22 million.
Complete LLC Tax Deduction Reference Table
| Deduction | IRC Section | Est. Annual Savings | Difficulty |
|---|---|---|---|
| Home Office | §280A | $1,500–$8,000 | Easy |
| Vehicle (Mileage) | §162, §274 | $2,000–$15,000 | Easy |
| Vehicle (Section 179) | §179 | $5,000–$30,000+ | Medium |
| Solo 401(k) | §401(k) | $10,000–$25,000 | Medium |
| SEP-IRA | §408(k) | $5,000–$20,000 | Easy |
| Health Insurance Premium | §162(l) | $3,000–$20,000 | Easy |
| Business Meals (50%) | §274 | $500–$5,000 | Easy |
| Business Travel | §162 | $2,000–$12,000 | Medium |
| Education & Training | §127, §162 | $1,000–$5,250 | Easy |
| Augusta Rule | §280A(g) | $5,000–$25,000 | Advanced |
| Accountable Plan | §62(a)(2)(A) | $3,000–$15,000 | Medium |
| Section 179 Equipment | §179 | $5,000–$50,000+ | Medium |
| Bonus Depreciation (100%) | §168(k) | $10,000–$100,000+ | Medium |
| Startup Costs | §195 | Up to $5,000 yr 1 | Easy |
| Professional Services | §162 | $1,000–$10,000 | Easy |
| Software & Subscriptions | §162 | $500–$5,000 | Easy |
| Marketing & Advertising | §162 | $1,000–$20,000 | Easy |
| Bank Fees & Interest | §163 | $200–$2,000 | Easy |
| Phone & Internet (Business %) | §162 | $500–$3,000 | Easy |
| Hire Your Children | §162, §73 | $3,000–$15,000 | Advanced |
| Charitable Contributions | §170 | Varies | Easy |
| QBI Deduction (20%) | §199A | $5,000–$40,000 | Medium |
Home Office Deduction (IRC §280A)
If you use part of your home exclusively and regularly for business, you can deduct a portion of your home expenses. There are two methods:
Simplified Method
$5 per square foot of dedicated office space, up to 300 sq ft = max $1,500 deduction. Easy to calculate, no depreciation recapture.
Actual Expense Method
Deduct the business percentage of mortgage interest/rent, utilities, insurance, repairs, and depreciation. Typically yields $3,000–$8,000 for a 15–20% home office.
The space must be used ONLY for business — not a guest room that doubles as an office. A dedicated room or clearly defined workspace area qualifies. The IRS audits home office deductions frequently; document the space with photos and measurements.
Vehicle Deduction: Mileage vs Actual Expenses
If you use a vehicle for business, you can deduct either the standard mileage rate or actual vehicle expenses (gas, insurance, depreciation, repairs) based on business use percentage.
| Method | 2026 Rate | Best For | Record-Keeping |
|---|---|---|---|
| Standard Mileage | 67¢/mile (2024 rate; 2026 TBD) | High-mileage, fuel-efficient vehicles | Mileage log required |
| Actual Expenses | Business % of all costs | Expensive vehicles, high depreciation | All receipts + mileage log |
For heavy SUVs and trucks (over 6,000 lbs GVWR) used for business, Section 179 and bonus depreciation can allow you to deduct the full purchase price in year one — potentially $50,000–$80,000 for a qualifying vehicle.
Retirement Plan Deductions: The Biggest Write-Off Available
Retirement plan contributions are one of the most powerful LLC deductions because they reduce both income tax AND self-employment tax. The 2026 contribution limits:
| Plan Type | 2026 Limit | Catch-Up (50+) | Best For |
|---|---|---|---|
| Solo 401(k) | $70,000 | +$7,500 | Self-employed, no employees |
| SEP-IRA | 25% of net SE income, max $70,000 | None | Simple, high earners |
| SIMPLE IRA | $16,500 | +$3,500 | Small businesses with employees |
| Defined Benefit Plan | Up to $275,000+ | N/A | High earners 50+, aggressive saving |
The Augusta Rule: Up to $25,000 Tax-Free (IRC §280A(g))
The Augusta Rule (named after Augusta, Georgia, home of the Masters golf tournament) allows homeowners to rent their home to their own business for up to 14 days per year completely tax-free. The homeowner pays no income tax on the rental income, and the business deducts the rental expense.
For an LLC owner who holds business meetings, strategy sessions, or board meetings at their home, this can generate $5,000–$25,000 in tax-free income annually. The key requirements:
- The rental must be for a legitimate business purpose (meetings, training, etc.)
- The rental rate must be comparable to what you’d pay for a similar venue
- You must document the meetings with agendas, attendees, and purpose
- The business must have a legitimate need for the space
- Works best for S Corp or C Corp owners (the business entity pays the LLC owner)
Your S Corp pays you $2,000/day to rent your home for 10 business strategy sessions = $20,000 tax-free income to you personally. Your S Corp deducts $20,000 as a business expense, reducing its taxable income. Net tax benefit: $20,000 × your combined marginal rate (typically 35–45%) = $7,000–$9,000 in tax savings.
Accountable Plan: The Most Overlooked S Corp Deduction
An accountable plan allows an S Corp to reimburse the owner-employee for business expenses paid personally — and these reimbursements are deductible to the S Corp and tax-free to the employee. This is especially powerful for home office, vehicle, phone, and internet expenses that would otherwise be non-deductible for W-2 employees.
Requirements: (1) expenses must have a business connection, (2) the employee must substantiate expenses within a reasonable time, and (3) excess reimbursements must be returned. A written accountable plan policy should be adopted by corporate resolution.
Section 179 & Bonus Depreciation: Immediate Expensing
Instead of depreciating equipment over 5–7 years, LLC owners can use Section 179 or bonus depreciation to deduct the full cost in the year of purchase.
Section 179 (2026)
- Deduction limit: $1,220,000
- Phase-out begins at: $3,050,000
- Applies to: equipment, vehicles, software, improvements
- Cannot create a loss
Bonus Depreciation (2026)
- Rate: 100% (restored by OBBBA)
- Through: 2029
- Applies to: new and used qualifying property
- Can create a loss (unlike §179)
Record-Keeping Requirements: What You Must Document
The IRS can audit LLC returns up to 3 years after filing (6 years if income is understated by 25%+). Keep these records for at least 7 years:
| Deduction Type | Required Documentation |
|---|---|
| Vehicle | Mileage log with date, destination, business purpose, miles |
| Meals | Receipt + who was present + business purpose discussed |
| Travel | Receipts, itinerary, business purpose of each day |
| Home Office | Photos, floor plan measurements, utility bills |
| Augusta Rule | Meeting agendas, attendee list, comparable rental rates |
| Equipment | Purchase receipt, business use percentage documentation |
The MERNA™ Deduction Stack: Finding the $30,000–$80,000 Most CPAs Miss
Most CPAs claim the easy deductions (home office, vehicle, meals). Uncle Kam’s MERNA™ Method finds the advanced strategies most advisors don’t know or won’t implement: Augusta Rule, accountable plans, hiring family members, defined benefit plans, and cost segregation. These strategies alone typically add $20,000–$60,000 in additional deductions on top of what your current CPA is claiming.
Frequently Asked Questions
LLC owners can deduct all ordinary and necessary business expenses under IRC §162. This includes home office, vehicle, health insurance, retirement contributions, business meals (50%), travel, education, software, marketing, professional services, and equipment. Advanced deductions include the Augusta Rule, accountable plan reimbursements, hiring family members, and cost segregation. Most LLC owners are missing $15,000–$50,000 in legitimate deductions.
Yes. You can deduct vehicle expenses using either the standard mileage rate (67¢/mile in 2024; 2026 rate TBD) or actual expenses based on business use percentage. For vehicles over 6,000 lbs GVWR used for business, you can use Section 179 or bonus depreciation to deduct the full purchase price in year one. Keep a detailed mileage log with dates, destinations, and business purposes.
Yes, but only the business-use percentage. If you use your phone 80% for business, you can deduct 80% of the monthly bill. If you have a dedicated business phone line, you can deduct 100%. Keep records of how you determined the business use percentage. Internet is similarly deductible based on business use — if you work from home full-time, 80–100% business use is defensible.
Yes. Under IRC §195, you can deduct up to $5,000 in startup costs in your first year of business (reduced dollar-for-dollar when total startup costs exceed $50,000). This includes state filing fees, attorney fees for the operating agreement, and initial accounting setup. Remaining startup costs are amortized over 180 months. Organizational costs (costs of forming the LLC itself) are treated similarly under IRC §248.
Yes, 50% of business meals are deductible under IRC §274. The meal must have a legitimate business purpose — client meetings, business discussions with employees, or meals while traveling for business. You must document: the amount, date, location, business purpose, and who was present. Entertainment expenses (concerts, sporting events) are no longer deductible since the 2017 TCJA.
Non-deductible expenses include: personal expenses (even if paid from the business account), commuting costs (home to regular workplace), entertainment (post-TCJA), political contributions, fines and penalties, personal clothing (unless it’s a uniform), and capital expenditures that must be depreciated. The key test is whether the expense is “ordinary and necessary” for your specific business — not just something you’d like to deduct.
Frequently Asked Questions
An LLC can deduct all ‘ordinary and necessary’ business expenses under IRC §162. Major categories: home office (up to $1,500 simplified or actual expenses), vehicle (67 cents/mile in 2024 or actual costs), health insurance premiums (100% deductible for self-employed), retirement contributions (up to $69,000/year with Solo 401k), business meals (50%), travel, equipment (Section 179 up to $1.16M), marketing, professional services, and education.
Yes. If you use part of your home exclusively and regularly for business, you can deduct home office expenses. Two methods: (1) Simplified method: $5/sq ft, up to 300 sq ft = max $1,500/year deduction, (2) Regular method: deduct the actual percentage of home expenses (mortgage interest/rent, utilities, insurance, repairs) based on the office’s square footage as a percentage of total home. The regular method typically yields a larger deduction.
Yes. Two methods: (1) Standard mileage rate: 67 cents per mile for 2024 business miles (keep a mileage log), (2) Actual expense method: deduct the business-use percentage of actual vehicle costs (gas, insurance, maintenance, depreciation). Section 179 allows immediate expensing of vehicles used over 50% for business — SUVs over 6,000 lbs can be fully expensed up to $28,900 in 2024.
Yes. Self-employed LLC members can deduct 100% of health insurance premiums paid for themselves, their spouse, and dependents under IRC §162(l). This is an above-the-line deduction (reduces your AGI) and is not subject to the 7.5% AGI floor that applies to itemized medical deductions. This deduction can save $3,000–$20,000/year depending on your premiums.
The Augusta Rule (IRC §280A(g)) allows you to rent your personal home to your business for up to 14 days per year, completely tax-free. Your LLC pays you rent (a deductible business expense), and you receive that rent income tax-free on your personal return. At $1,500–$3,000/day for a ‘board meeting’ or business event, this strategy can generate $21,000–$42,000 in tax-free income annually.
Yes. LLC owners can contribute to a Solo 401(k) as both employee and employer: up to $23,000 as employee (2024) + up to 25% of net self-employment income as employer contribution = maximum $69,000/year ($76,500 if age 50+). SEP-IRA allows up to 25% of net SE income (max $69,000). These contributions are fully deductible and reduce your taxable income dollar-for-dollar.
Yes — 50% of business meal costs are deductible under IRC §274. Requirements: the meal must have a clear business purpose, you must discuss business before, during, or after the meal, and you must keep records (receipt + who attended + business purpose). The 100% deduction for business meals that applied in 2021–2022 has expired — the rate is back to 50% for 2024.
Section 179 allows LLCs to immediately expense (deduct in full in year one) the cost of qualifying business equipment and property, rather than depreciating it over several years. The 2024 limit is $1,160,000. This applies to computers, machinery, furniture, vehicles (with limits), and certain software. Bonus depreciation (60% in 2024) applies to assets not fully covered by Section 179.
Yes. LLCs can deduct up to $5,000 in startup costs in the first year of business (if total startup costs are under $50,000). Costs above $5,000 must be amortized over 180 months. Deductible startup costs include: market research, advertising before opening, employee training, legal and accounting fees for formation, and travel to find suppliers or customers.
Yes. Education and training that maintains or improves skills required in your current business are deductible under IRC §162. This includes courses, books, seminars, coaching programs, and professional development. Education to qualify for a new career is not deductible. If you have employees, you can also use the §127 educational assistance plan to provide up to $5,250/year in tax-free education benefits.
Keep: receipts for all business expenses, bank and credit card statements, mileage logs (date, destination, business purpose, miles), home office measurements and utility bills, vehicle records, and any contracts or agreements. The IRS requires records to be kept for at least 3 years from the filing date (7 years for fraud cases). Digital records (photos of receipts, accounting software) are acceptable.
The Qualified Business Income (QBI) deduction (IRC §199A) allows eligible LLC owners to deduct up to 20% of qualified business income from their taxable income. For 2024, this deduction phases out for specified service trades or businesses (SSTB) — like law, accounting, consulting, and health — above $191,950 (single) or $383,900 (married). This deduction is set to expire after 2025 unless Congress extends it.
Yes. If you use part of your home exclusively and regularly for business, you can deduct home office expenses. Two methods: (1) Simplified — $5 per square foot up to 300 sq ft ($1,500 max), or (2) Regular — deduct the actual percentage of home expenses (mortgage interest, utilities, insurance, repairs) based on office square footage.
Yes. You can deduct up to $5,000 in startup costs in your first year of business (2026). Startup costs include market research, advertising before opening, travel to find suppliers, and professional fees paid before the business launched. Costs above $5,000 must be amortized over 180 months. The deduction phases out if total startup costs exceed $50,000.
Yes. Self-employed LLC owners can deduct 100% of health insurance premiums for themselves, their spouse, and dependents under IRC §162(l). This is an above-the-line deduction that reduces your adjusted gross income. You cannot take this deduction if you or your spouse were eligible for employer-sponsored health insurance during the year.
Keep records for all business expenses: bank and credit card statements, invoices and receipts for purchases over $75, mileage logs, meal receipts with business purpose noted, home office measurements and utility bills, payroll records, and any contracts or agreements. The IRS recommends keeping records for at least 3 years (7 years for certain items like employment tax records).