Contractor Year-End Tax Planning: 9 Decisions to Make Before December 31

Contractor year-end tax planning is not about finding a few last-minute deductions. For a bonded commercial contractor, every move you make before December 31 shows up twice: once on your tax return and once on the financial statements your surety reviews. The goal is to lower your tax bill without shrinking the equity and working capital that drive your bonding capacity.

Here are nine decisions to work through with your CFO and tax advisor before the year closes.

1. Confirm Your Accounting Method for Long-Term Contracts

Your method for recognizing income on long-term contracts is the biggest lever you have. Contractors under the small contractor gross receipts threshold may be able to use the completed contract method or another exempt method for tax, while larger contractors generally must use percentage of completion. Review whether your current method still fits, because changing methods requires planning and, in many cases, IRS consent.

2. Decide Whether to Buy Equipment This Year

Bonus depreciation and Section 179 can turn an equipment purchase into a large current-year deduction. The question is not just "will this save tax?" It is also "do we need this equipment, and how will paying for it affect working capital?" A truck bought with cash to save taxes can leave you with less liquidity than your surety wants to see.

3. Review Year-End Timing on Billing and Expenses

Depending on your accounting method, the timing of billings, collections, and expense payments can shift income between years. Map out what is realistic for December and January, and do not hold back legitimate billings in a way that hurts cash or creates underbillings on your WIP schedule.

4. Set Owner Compensation and Distributions

• If you operate as an S corporation, confirm your salary is reasonable for the work you do.

• Plan distributions so they do not drain the equity your surety counts.

• Consider whether shareholder loans should be repaid or subordinated before year-end.

5. Decide on Year-End Bonuses

Bonuses for key field and office staff can be deductible this year if they are properly accrued and paid within the allowed window after year-end. Confirm the rules with your tax advisor before you commit.

6. Evaluate Your Pass-Through Entity Tax Election

Many states let pass-through businesses pay state income tax at the entity level, which can get around the individual SALT deduction limit. Deadlines and rules differ by state, so check every state where you have income.

7. Fund or Set Up a Retirement Plan

A 401(k), profit sharing plan, or cash balance plan can move a meaningful amount of income out of the current tax year while building wealth for owners. Setup and contribution deadlines vary by plan type.

8. Clean Up the Balance Sheet

Write off receivables that are truly uncollectible, reconcile retainage, and close out completed jobs. Clean books support accurate deductions and make your year-end statements easier for your CPA and your surety to rely on.

9. Run a Bonding Check on Every Tax Move

Before you finalize any strategy, ask how it changes working capital, equity, and your debt-to-equity ratio. A tax move that saves $40,000 but reduces your bonding capacity by far more than that is not a win. We cover this tradeoff in How to Increase Bonding Capacity: 6 Tax Moves That Quietly Shrink It.

Frequently Asked Questions

When should contractor year-end tax planning start?

Ideally in October or early November. That leaves time to model scenarios, order equipment, and set up retirement plans before December 31.

Can I use one accounting method for taxes and another for my surety?

Yes. Many contractors report to their surety on a GAAP percentage of completion basis and file taxes using a different permitted method. The key is reconciling the two clearly.

Does buying equipment always save money?

No. It lowers taxes, but it also uses cash. Only buy equipment you need, and check the effect on working capital first.

Plan Your Year-End With a CFO Who Understands Bonding

At SuretyCFO, we help commercial contractors with $5M to $50M in revenue plan taxes and bonding together, so you keep more cash without weakening your surety relationship. Schedule A Call to review your year-end plan.

This article is for general information only and is not tax or legal advice. Talk with a qualified tax professional about your specific situation.