Inventory Control under Corporate Income Tax and Accrual Accounting

37 Pages Posted: 29 Jan 2021 Last revised: 3 Nov 2021

See all articles by Zhan Pang

Zhan Pang

Purdue University - Krannert School of Management

Yixuan Xiao

Washington State University

Date Written: September 21, 2021

Abstract

Corporate income tax (CIT), as an important economic instrument in most jurisdictions, constitutes a significant portion of financial costs in business operations. It is known that the structure of tax function, accounting method and loss carryover policy have significant impacts on a firm's operational strategies, which, however, has received little attention in operations management literature. In this paper, we study the effects of taxation on optimal inventory policies under accrual accounting. More specifically, we consider a risk-neutral firm managing a single-item periodic-review inventory system. We formulate the problem as a cyclic stochastic dynamic program with multiple accounting periods, each of which consists of multiple ordering periods. We first show that the optimal inventory policy can be characterized by an income-dependent base-stock policy in both the setting with proportional tax and loss carryforward and the setting with general progressive tax and no loss carryforward. We show that tax function convexity and loss carryforward may introduce conflicting incentives into the decision making: the formal drives risk-averse decision while the latter induces risk-seeking behavior. In particular, we further identify two intertemporal effects of taxation, namely, the intra-accounting-period effect and the inter-accounting-period effect, on optimal inventory decisions, both inducing smaller basestock levels due to the tax function convexity. Our numerical study further examines the effects of various characteristics of taxation on the optimal policies and shows that ignoring taxation in inventory decisions may result in significant losses when the degree of tax function convexity and demand uncertainty are sufficiently high, which reinforces the value of tax considerations in inventory management.

Keywords: Inventory management; corporate income tax (CIT); accrual accounting; stochastic dynamic programming

Suggested Citation

Pang, Zhan and Xiao, Yixuan, Inventory Control under Corporate Income Tax and Accrual Accounting (September 21, 2021). Available at SSRN: https://ssrn.com/abstract=3735233 or http://dx.doi.org/10.2139/ssrn.3735233

Zhan Pang (Contact Author)

Purdue University - Krannert School of Management ( email )

1310 Krannert Building
West Lafayette, IN 47907-1310
United States

Yixuan Xiao

Washington State University ( email )

Wilson Rd.
College of Business
Pullman, WA 99164
United States

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