The Annual New Consulting Firm Review Checklist
A practical annual review checklist for new consulting firms covering tax deadlines, deductions, entity status, and retirement plans with real numbers.
Running a consulting firm means your first few years are a blur of client work and admin. But once a year, you need to step back and review your tax and financial setup. This checklist walks you through the key items every new consulting firm should review annually, with concrete steps and realistic figures for 2026.
1. Confirm Your Entity Type Is Still Optimal
Your initial choice of sole proprietorship, LLC, S-corp, or C-corp may not fit your current revenue. Review your net profit and decide if a change saves money.
- Sole proprietorship or single-member LLC: You pay self-employment tax on all net earnings (15.3% in 2026). If your net profit exceeds $40,000, an S-corp election could reduce that tax by paying yourself a reasonable salary and taking the rest as distributions.
- S-corp: You must file Form 2553 by March 15 (or within 2.5 months of starting). Annual payroll and unemployment taxes add complexity, but the savings often justify it above $50,000 in net profit.
- C-corp: Rarely optimal for consultants unless you plan to reinvest heavily or seek outside investors. The flat 21% corporate rate may be lower than your personal rate, but double taxation on dividends applies.
Action this week: Calculate your 2025 net profit. If it’s above $40,000 and you’re not an S-corp, talk to a CPA about the cost-benefit. The typical CPA fee for an S-corp election and setup is $500-$1,500.
2. Review Your Bookkeeping System and Records
Your annual review is the time to ensure your records are accurate and complete. Poor books lead to missed deductions and audit risk.
- Use accounting software: QuickBooks Online or Xero cost $30-$80/month. FreshBooks is $15-$50/month. If you’re still on spreadsheets, upgrade now.
- Reconcile all accounts: Match every bank and credit card transaction to your ledger. Do this monthly, but at minimum annually.
- Keep receipts and logs: For mileage, use a dedicated app like MileIQ ($60/year) or a manual log. The IRS standard mileage rate for 2026 is 67 cents per mile.
Action this week: Run a profit and loss statement for the last 12 months. Identify any unreconciled transactions and fix them before tax season.
3. Maximize Deductions Specific to Consulting
Consultants have unique deductions that new owners often miss. Review these and ensure you’re claiming all you’re entitled to.
- Home office: If you use a dedicated space exclusively for business, you can take the simplified deduction ($5 per square foot, up to 300 sq ft) or actual expenses. The simplified method gives $1,500 max.
- Equipment and software: Laptops, monitors, and software subscriptions are deductible under Section 179 (up to $1,220,000 in 2026) or bonus depreciation (100% through 2026).
- Professional development: Courses, certifications, and industry conferences are deductible. For example, a $2,000 project management certification is fully deductible.
- Marketing and website: Domain, hosting, ads, and content creation are all deductible. Track every expense.
- Health insurance: If you’re self-employed, you can deduct premiums for yourself, spouse, and dependents, subject to net profit limits.
Action this week: List all business expenses from the last year. Cross-check against IRS Publication 535 to see if you missed any.
4. Check Quarterly Estimated Tax Payments
New consultants often underpay or miss quarterly deadlines. The IRS requires estimated payments if you expect to owe more than $1,000 in tax.
- 2026 deadlines: April 15, June 15, September 15, and January 15, 2027.
- Safe harbor rule: Pay at least 100% of last year’s tax liability (or 110% if your AGI was over $150,000) to avoid penalties.
- How to pay: Use IRS Direct Pay or EFTPS. State payments vary; check your state’s tax agency.
Action this week: Calculate your 2025 total tax. Divide by 4 and set aside that amount for each 2026 quarter. If you underpaid in 2025, adjust your 2026 payments to avoid penalties.
5. Evaluate Retirement Plan Options
Retirement plans offer significant tax deductions and are a key part of your annual review. Compare the main options for consultants.
| Plan | 2026 Contribution Limit | Pros | Cons |
|---|---|---|---|
| SEP IRA | Up to 25% of net earnings, max $69,000 | Easy setup, high limit | No catch-up for 50+, must contribute for employees |
| Solo 401(k) | Up to $23,000 employee deferral + 25% employer, total max $69,000 | Higher limits, loan option | More paperwork, must file Form 5500 if over $250k |
| SIMPLE IRA | $16,000 + $3,500 catch-up | Low cost, easy | Lower limit, mandatory employer match |
| Traditional IRA | $7,000 ($8,000 if 50+) | Simple, any income | Low limit, may not be deductible if you have a retirement plan at work |
Action this week: If you don’t have a plan, open a Solo 401(k) at a broker like Fidelity or Vanguard (no fee). If you have one, review your contribution for 2025 and ensure you didn’t exceed limits.
6. Review Your Tax Deadlines and Filing Status
Missing deadlines triggers penalties. Mark these on your calendar now.
- March 15: S-corp and partnership tax returns (Form 1120-S or 1065).
- April 15: Individual tax returns (Form 1040) and C-corp returns (Form 1120).
- Extension: File Form 4868 by April 15 to get until October 15, but pay any tax due by April 15 to avoid interest.
- State deadlines: Many states align with federal, but not all. Check your state’s department of revenue.
Action this week: List all 2026 deadlines on your calendar. If you’re an S-corp, confirm your payroll service is withholding and filing quarterly (Form 941).
7. Plan for State and Local Taxes
State taxes vary widely and are often overlooked by new consultants.
- Income tax: 41 states impose a personal income tax. Rates range from 0% (Texas, Florida) to 13.3% (California top bracket).
- Sales tax: If you sell digital products or courses, you may owe sales tax in states where you have nexus. Review your sales volume.
- Franchise tax: Some states (e.g., Texas, Delaware) charge a franchise tax even for LLCs. Check your state’s rules.
Action this week: Visit your state’s tax website and confirm your filing requirements. If you’re unsure, ask your CPA for a state tax checklist.
8. Set Up a Tax Savings Account
A dedicated savings account for taxes prevents cash flow surprises. This is a simple but powerful habit.
- How much to save: Set aside 25%-35% of each client payment for federal and state taxes, depending on your bracket.
- Where to keep it: A high-yield savings account earning 4%-5% APY (e.g., Ally, Marcus) works well. Keep it separate from operating funds.
Action this week: Open a separate savings account and set up an automatic transfer of 30% of every invoice payment.
FAQ
Q: What if I missed a quarterly estimated tax payment? A: Pay it as soon as possible. The penalty is based on how late the payment is, so paying now reduces the penalty. Use Form 2210 to calculate, but the IRS will also send a notice.
Q: Can I deduct business meals and entertainment? A: Business meals are 50% deductible if they are directly related to your business and you have documentation. Entertainment is not deductible since 2018.
Q: Should I hire a CPA or use DIY software? A: If your tax situation is simple (single-member LLC, no employees), software like TurboTax Self-Employed ($120-$200) works. If you have an S-corp, employees, or multi-state income, a CPA costs $500-$2,000 but can save you more in deductions and penalties.
Q: What records should I keep and for how long? A: Keep all tax returns and supporting documents for at least 7 years. The IRS can audit up to 6 years, and state may differ. Store digitally with cloud backup.
The Bottom Line
Your annual review is not just about compliance; it’s about keeping more of what you earn. Run through this checklist every year: confirm your entity, clean up your books, maximize deductions, pay estimated taxes on time, choose the right retirement plan, and save for taxes. The time you spend now saves you money and stress later. If you’re unsure about any step, invest in a CPA for a one-time review; it’s worth the $300-$800 fee for peace of mind.