| Course | ACC 455 Corporate Taxation (ACC/455) |
|---|---|
| Week | 3 |
| Paper type | Credits and book-tax difference paper |
| Length | about 1,026 words, 4 double-spaced pages plus title page and references |
| Format | APA 7 student paper |
| School | University of Phoenix |
| Program | BS in Accounting |
| Updated | September 2026 |
Free sample paper for ACC 455 Week 3
A Research Credit, Stock Compensation and Schedule M-3: Reconciling a Composite Freight Software Corporation's Book and Taxable Income for 2025
[Student Name]
University of Phoenix
ACC/455: Corporate Taxation
Week 3 Assignment
[Instructor Name]
[Date]
The corporation and all figures are composites written for a model paper; tax rules and research findings come from the sources listed and apply to the 2025 tax year.
A composite software corporation licenses freight-routing software to trucking companies and shippers. It employs 140 people, 52 of them in engineering, and reported pretax book income of $6.8 million for 2025. Its tax return will show a different figure, and its tax will be reduced further by a credit. The same year's activity produces three answers: what the company earned for its shareholders, what it earned under the Code and what it finally owes after credits. This paper computes the research credit and reconciles book income to taxable income.
Identifying Qualified Research Expenses
The research credit applies to expenses for research that is technological in nature, intended to develop a new or improved business component and involves a process of experimentation. The company's engineers spent the year developing a new routing engine that uses machine learning to predict dock congestion. Engineering payroll totaled $6.1 million. Time records show that 38% of engineering hours went to the routing engine research, $2.318 million, and the rest to maintenance, bug fixes for existing customers and support, which do not qualify. Supplies used in testing and cloud computing costs for training models on test data added $82,000 of qualifying costs. Qualified research expenses for 2025 are $2.4 million.
Computing the Credit
The company uses the alternative simplified credit. Its qualified research expenses for the three prior years averaged $1.8 million. The credit is 14% of the amount by which current expenses exceed half that average, $900,000. The excess is $1.5 million, and the credit is $210,000.
A company must either reduce its deduction for research costs by the amount of the credit or elect a reduced credit. The company elects the reduced credit, which lowers the credit by the 21% corporate rate to about $165,900, and keeps its full deduction. The credit is part of the general business credit, reported on Form 6765, and reduces tax dollar for dollar. A review of the evidence on fiscal incentives for research concluded that a dollar of tax credit tended to stimulate roughly a dollar of additional research spending, which is the policy rationale for the credit (Hall & Van Reenen, 2000).
Deducting Research Costs
From 2022 through 2024, domestic research and experimental costs had to be capitalized and amortized over five years, which raised taxable income for software companies sharply. Legislation enacted in 2025 restored the immediate deduction of domestic research costs for tax years beginning after 2024. The company therefore deducts its 2025 domestic research costs currently, as it also does on its books, so no difference arises for 2025 costs. It still has unamortized research costs from 2022 through 2024; the 2025 law allows those to be deducted over a shorter period, and the company elected to deduct the remaining balance over two years, creating a temporary difference of about $1.1 million this year.
Stock Options
The company expenses employee stock options on its books at their grant-date fair value over the vesting period, $600,000 this year. For tax, nonqualified options produce a deduction when employees exercise them, equal to the spread between the stock price and the exercise price, $850,000 this year. The difference has two parts: the book expense for options not yet exercised is a temporary difference, and the excess of the tax deduction over cumulative book expense for exercised options is a permanent difference.
Other Differences
Tax depreciation exceeded book depreciation by $420,000 because of bonus depreciation on servers, a temporary difference. The company earned $40,000 of tax-exempt interest, and it paid $25,000 of penalties to a state agency for late filings, both permanent differences. Half of $60,000 of business meals, $30,000, is nondeductible, a permanent difference.
The Reconciliation
Pretax book income is $6.8 million. Subtract the $1.1 million deduction for prior-year research costs, the $420,000 of excess tax depreciation, the $250,000 by which the stock option deduction exceeds book expense and the $40,000 earned on tax-exempt bonds, then restore the $25,000 of penalties and the $30,000 of nondeductible meals. Taxable income is $5.045 million. Regular tax at 21% is about $1,059,450, and after the $165,900 research credit, tax is about $893,550.
Schedule M-3
Corporations with total assets of $10 million or more must file Schedule M-3 instead of the shorter Schedule M-1 (Internal Revenue Service, 2025). The company's total assets are $38 million. Schedule M-3 begins with income reported on the audited financial statements and requires each difference to be reported separately and labeled temporary or permanent. It gives the IRS a detailed map of where book and tax income diverge, which helps it select returns for examination.
Documentation
The research credit is one of the most frequently examined items on corporate returns, so documentation matters as much as arithmetic. The company keeps project records showing the technical uncertainty the engineers faced, the alternatives they tested and the results, along with time records tied to each project. Since 2022 the IRS has also asked taxpayers claiming refunds for the credit to identify each business component, the research activities and the people involved. A credit supported only by an estimate of the share of engineering time spent on research is much harder to defend than one built from project-level records.
Why the Differences Matter
Dyreng et al. (2008) found that some firms sustain low cash effective tax rates for long periods, and the gap between book and tax income is one place analysts and the IRS look for tax planning. Hanlon and Heitzman (2010) reviewed research showing that large book-tax differences can signal either aggressive tax positions or lower-quality earnings. The company's differences come mostly from ordinary timing items and a research credit Congress intended, and Schedule M-3 documents them.
Conclusion
The software company's research on a new routing engine produced a $165,900 credit under the reduced credit election. Its taxable income of about $5.0 million differs from its $6.8 million book income mainly because of research cost amortization, bonus depreciation and stock option deductions, with small permanent differences for tax-exempt interest, penalties and meals. Schedule M-3 reports each item so the reconciliation can be reviewed.
References
Dyreng, S. D., Hanlon, M., & Maydew, E. L. (2008). Long-run corporate tax avoidance. The Accounting Review, 83(1), 61-82. https://doi.org/10.2308/accr.2008.83.1.61
Hall, B., & Van Reenen, J. (2000). How effective are fiscal incentives for R&D? A review of the evidence. Research Policy, 29(4-5), 449-469. https://doi.org/10.1016/S0048-7333(99)00085-2
Hanlon, M., & Heitzman, S. (2010). A review of tax research. Journal of Accounting and Economics, 50(2-3), 127-178. https://doi.org/10.1016/j.jacceco.2010.09.002
Internal Revenue Service. (2025). Instructions for Schedule M-3 (Form 1120). https://www.irs.gov/instructions/i1120sm3
What the ACC 455 Week 3 instructions ask
The ACC 455 Week 3 assignment usually asks students to apply special corporate deductions and credits and to reconcile book income with taxable income. Typical tasks include identifying credits such as the research credit, applying the rules for research and experimental costs, computing the general business credit, classifying book-tax differences as temporary or permanent and completing or explaining Schedule M-1 or M-3. Some prompts connect these differences to deferred taxes on the financial statements or discuss tax planning. The paper should show calculations, name the Code section or IRS instruction behind every rule and describe in plain terms why each difference arises, with citations in APA style.
How this ACC 455 Week 3 example is built
A freight software company is a natural setting for the research credit because its developers design and test new routing algorithms, and like many technology firms it pays employees partly in stock options, which produce one of the largest book-tax differences. The paper first sorts the company's spending into qualified research expenses and other costs, then computes the credit step by step and the effect of the reduced credit election. The research cost deduction is explained with the 2025 change in law. The stock option section compares book expense with the tax deduction at exercise. A table in prose then classifies every difference, and the paper closes by explaining the Schedule M-3 requirement and what it reveals to the IRS.
ACC 455 Week 3 grading rubric: where the points go
Faculty typically assign credit for correct identification of qualified research expenses, correct computation of the credit and a complete and correctly classified reconciliation. The alternative simplified credit must use 14% of the excess over half the three-year average, and the reduced credit election must be applied correctly if chosen. Book-tax differences must be labeled temporary or permanent, and their direction must be right. Knowing when Schedule M-3 replaces M-1 shows awareness of compliance. Discussing how these items appear in deferred taxes on the financial statements earns additional marks. Citations of the Code, instructions and research, plus a clear structure, complete the rubric.
ACC 455 Week 3 help: mistakes to avoid
In ACC 455 Week 3, students frequently count all developer salaries as qualified research expenses, including time spent on routine maintenance or customer support. Only time on qualified research counts. Another mistake is taking the full credit without considering the reduced credit election or the related reduction in deductions. Apply one or the other. Students also call stock option differences permanent when part of the difference is temporary. Classify carefully and explain the reason. Remember that tax-exempt interest and fines are permanent, and depreciation differences are temporary. State the asset threshold for Schedule M-3. Finally, avoid presenting the research credit as a deduction; it reduces tax dollar for dollar, which makes it worth far more than a deduction of the same size.
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ACC 455 Week 3 questions, answered
What does ACC/455 Week 3 usually cover?
It usually covers special corporate deductions, tax credits such as the research credit and differences between book and taxable income, including Schedule M-1 or M-3.
Where can I find a free ACC 455 Week 3 sample paper?
Read the freight software corporation example on this page, which computes the research credit and reconciles book to taxable income with margin comments. Your own case can be turned into a first draft at no charge; just send the details.
How is the alternative simplified research credit computed?
It equals 14% of qualified research expenses for the year that exceed 50% of the average qualified research expenses for the prior three years.
When must a corporation file Schedule M-3?
Corporations with total assets of $10 million or more at the end of the tax year generally must file Schedule M-3 instead of Schedule M-1.
What is the difference between a tax credit and a deduction?
A deduction reduces taxable income, saving tax at the corporate rate; a credit reduces the tax itself dollar for dollar.
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