Completed Contract Method vs Percentage of Completion: $32M

By Adham Abadier, CPA — Licensed in California, License #158599

If you run a construction company in Moreno Valley, Riverside, or anywhere in the Inland Empire, the completed contract method vs percentage of completion choice shapes when you pay federal tax, what your financials look like to sureties and lenders, and how much discipline your job-cost records demand. Through our construction-focused CPA services, Catalyst CPA helps contractors weigh both methods against the 2026 rules. Here is how each method works, when the law leaves you a choice, and where the traps sit.

The completed contract method vs percentage of completion decision is a timing question. CCM defers all income and contract costs to the year a job is substantially finished; PCM reports a portion of the contract price each year as work progresses. For tax year 2026, contractors under the small-contractor exception may elect CCM on qualifying contracts — above that line, IRC §460 makes PCM mandatory.

⚠️ October 15 extended-return deadline — date reminder

Calendar-year Form 1040 returns on extension are due October 15, 2026, along with C-Corp Form 1120 extensions and FBAR. Late-filing penalties run 5% per month up to 25% under §6651(a)(1) per IRS.gov. Contractor-owners should confirm long-term contract reporting before filing.

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Key Takeaways

• CCM defers everything. Under the completed contract method, no income or expenses from a job hit your return until the job is substantially finished (Treas. Reg. § 1.460-4(d)).
• PCM pays as you build. Under the percentage of completion method, you include the portion of the contract price matching the percentage completed each year, measured by costs incurred against estimated total costs (Treas. Reg. § 1.460-4(b)).
• The 2026 small-contractor exception has two tests: average annual gross receipts at or below $32 million over a three-year lookback, and a contract expected to finish within two years.
• Above the threshold, PCM is mandatory for long-term contracts under IRC §460.
• Home-construction contracts get their own carve-out under §460(e) with no gross receipts test.
• Pass-through owners generally face an AMT recalculation of CCM income that often erases the deferral benefit; C corporations generally do not.
• Bad PCM estimates cost money later through look-back interest computed on Form 8697.

Completed Contract Method vs Percentage of Completion: How Each Works

Completed contract method (CCM)

Under CCM, you report no income and no expenses from a contract until the job is substantially complete. If a project starts in 2026 and finishes in 2027, all of its income lands on the 2027 return — and cash you collect along the way does not trigger tax, because completion is the trigger. The IRS Construction Industry Audit Technique Guide describes the method as recognizing contract income in the year of completion under Treas. Reg. § 1.460-4(d).

Percentage of completion method (PCM)

PCM requires you to include in gross income the portion of the total contract price that corresponds to the percentage of the contract completed during the taxable year. For tax purposes, IRC §460 generally requires the cost-to-cost method: completion is determined by comparing allocable contract costs incurred with estimated total allocable contract costs. You may also elect a 10% variant noted in the audit guide, and SOP 81-1 catalogs other progress measures — efforts expended, units-of-delivery, units-of-work-performed — though cost-to-cost is the tax standard.

Factor	Completed Contract Method (CCM)	Percentage of Completion (PCM)
When income is reported	In the year the contract is substantially completed (Treas. Reg. § 1.460-4(d))	Each year, in proportion to work completed (Treas. Reg. § 1.460-4(b))
How income is measured	All contract income recognized at completion	Portion of the contract price matching percent complete
Progress measurement	None — completion is the trigger	Cost-to-cost standard under IRC §460
Who must use it	Optional for contractors meeting the small-contractor or home-construction exceptions	Mandatory for non-exempt long-term contracts
Estimate exposure	No annual revenue estimates to defend	Look-back interest under Form 8697 when estimates prove wrong

Which side of that table you land on is decided by IRC §460 — and by two threshold tests that changed for 2026.

Which Method Does IRC §460 Require in 2026?

The general rule: a long-term contract — any construction contract not expected to be completed within the tax year it starts — must use percentage of completion for tax. The exceptions decide everything else.

The $32 million small-contractor exception

As of September 2026, a contractor qualifies for the exception when both tests are met. First, the gross receipts test: average annual gross receipts for the prior three tax years at or below $32 million for tax year 2026 (Rev. Proc. 2025-32). The threshold imports the §448(c) gross receipts test and is inflation-adjusted annually — $26 million for 2022 and $31 million for 2025 (SDO CPA). Second, the contract duration test: the contract must be expected to be completed within two years of commencement. Meet both and you may elect completed contract, cash basis if otherwise eligible under §448, or accrual without the PCM requirement. Fail either — you cross the receipts ceiling, or a contract is expected to run past two years — and PCM is mandatory.

Home-construction contracts: no gross receipts test

Residential builders get a separate carve-out. Home-construction contracts — those where at least 80% of estimated costs are for dwelling units in buildings of four or fewer units — may use the completed contract method under IRC §460(e) without the $32 million test (SDO CPA). Most residential home builders run on this exception. One caution from the rulings: costs of a house built for speculative sale must be capitalized regardless of your overall method of accounting (Rev. Rul. 66-247).

Service providers and mixed engagements

Not everyone near a job site qualifies. An architect providing drafting and supervisory services may not report income under CCM because the work is personal services (Rev. Rul. 70-67), and an engineering-services taxpayer generally cannot adopt either method (Rev. Rul. 80-18; see also Rev. Rul. 82-134 and Rev. Rul. 84-32). But engineering, architect, and construction management services provided as part of a construction contract may use CCM or PCM under GCM 39803. The line is whether the services are bundled into the construction contract or performed standalone.

On the $32M bubble, holding multi-year contracts, or unsure whether your entity’s CCM deferral survives the AMT? Those three facts decide the completed-contract question — and the answer changes every year. Adham reviews your contracts, receipts, and entity structure personally and shows which method each job supports.
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How Contractors Choose Between CCM and PCM

When the law gives you a choice, work the decision in this order:

1. Run the gross receipts test. Average the prior three tax years and compare against the $32 million ceiling for TY 2026.
2. Date-test every contract. A contract expected to finish within two years of commencement keeps its exemption; anything longer falls back to mandatory PCM.
3. Check the home-construction carve-out if you build dwellings in four-or-fewer-unit buildings.
4. Weigh your entity type. Pass-through owners generally face an AMT recalculation of CCM income under PCM; C corporations generally do not.
5. Consider your surety and lender. Bonding companies and construction lenders read percentage-of-completion financials — WIP schedules, backlog reports, and contract-by-contract margin analysis support bonding limits. GAAP under ASC 606 looks like PCM even when your tax return uses CCM, so book-tax differences are normal and need a reconciling schedule.
6. Plan any switch carefully. Changing a method of accounting requires the Commissioner’s consent — Rev. Proc. 97-27 sets the general procedures, and Rev. Proc. 99-49 provides automatic consent.

A cost-to-cost illustration

Illustrative figures only — the formula is the cost-to-cost standard, and these inputs are assumptions, not client data. Say a contract price is $1,000,000, total estimated costs are $800,000, and costs incurred to date are $400,000. Percent complete = $400,000 ÷ $800,000 = 50%. Revenue recognized for the year = 50% × $1,000,000 = $500,000. Under CCM — assuming you qualify for an exception — none of that income is reported until substantial completion. That is the entire timing gap between the two methods.

Why clean job costing decides everything

Cost-to-cost falls apart without clean job costing: if costs are not captured reliably by job and cost type, percent complete becomes fiction, and understated prior-year estimates resurface as Form 8697 look-back interest — the IRS charges interest on the underpayment in the correction year. The fix starts with disciplined monthly bookkeeping and job-cost-coded transactions, so every percent-complete calculation traces to real field spend.

Frequently Asked Questions

Completed contract method vs percentage of completion: what’s the core difference?

Timing. CCM defers tax by recognizing all income when a job finishes; PCM recognizes income as work progresses. Under CCM you report no job income or expenses until substantial completion; under PCM you include the slice of the contract price matching the percentage completed each year, measured by costs incurred against total estimated costs.

Can a small contractor elect the completed contract method in 2026?

Yes, if both tests are met: average annual gross receipts for the prior three tax years at or below $32 million for TY 2026 (Rev. Proc. 2025-32), and a contract expected to be completed within two years of commencement. Meeting both lets you elect CCM, cash basis if otherwise eligible under §448, or accrual without the PCM requirement. Fail either test and PCM is mandatory.

Do homebuilders qualify for CCM without the $32 million test?

Yes. Home-construction contracts — at least 80% of estimated costs for dwelling units in buildings of four or fewer units — carry their own exception under IRC §460(e), so those contractors can use CCM regardless of gross receipts. Note that costs of a house built for speculative sale must be capitalized regardless of overall method (Rev. Rul. 66-247).

How does the AMT affect CCM for pass-through owners?

For pass-through entity owners, the alternative minimum tax generally requires recalculating CCM income under PCM, which often eliminates the deferral benefit and doubles the accounting work. C corporations are generally not subject to this recalculation, so CCM can deliver its full federal deferral benefit there.

What is the cost-to-cost method?

It is the standard progress measure: costs incurred to date divided by total estimated costs equals percent complete, applied to the contract price for revenue earned. IRC §460 generally requires cost-to-cost for tax, though you may elect a 10% variant, and SOP 81-1 lists other measures such as efforts expended and units-of-delivery.

What happens if my percentage-of-completion estimates are wrong?

Wrong prior-year estimates produce look-back interest under Form 8697 — the IRS charges interest on the underpayment in the correction year. That makes current, reliable cost estimates a tax compliance issue, not just a reporting nicety.

Can I change my accounting method later?

Yes, but changing a method of accounting for federal income tax purposes requires the consent of the Commissioner. Rev. Proc. 97-27 provides the general consent procedures, and Rev. Proc. 99-49 provides automatic consent procedures. Model the timing effect with a CPA before filing.

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Adham personally reviews your three-year gross receipts against the §460 threshold, your contract durations, entity structure, and job-cost records — then maps which method each qualifying contract supports and where the AMT recalculation bites.

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Get a Construction-Aware CPA Review Before You File

Method elections, AMT recalculations, and look-back exposure reward early planning — ideally before your extended return is due on October 15. Catalyst CPA Corporation works with contractors in Moreno Valley, Riverside, Corona, Eastvale, Murrieta, Temecula, Ontario, San Bernardino, Fontana, across Orange County and the Inland Empire, and remotely nationwide, through tax and accounting support for California contractors.

Adham Abadier, CPA (California License #158599, QuickBooks Gold ProAdvisor, AICPA and CalCPA member) personally reviews your contracts and records. Call (951) 223-1826, email adham@catalyst-cpa.com, or visit 13114 Yellowwood St, Moreno Valley, CA 92553 to schedule your consultation.