Mindanao Bus Company vs. Collector of Internal Revenue

The Court held that a tax assessment computed through an average method is valid when direct verification is impracticable, and the burden rests on the taxpayer to prove its inaccuracy. Furthermore, receipts issued by land carriers for the transportation of baggage qualify as bills of lading subject to documentary stamp tax, and implementing regulations classifying such instruments are deemed constitutionally valid under the principle of legislative approval by reenactment.

Mindanao Bus Company operated as a common carrier transporting passengers and freight via auto-buses in Northern Mindanao under certificates of public convenience issued by the Public Service Commission. In September 1953, a Bureau of Internal Revenue agent audited the petitioner's books of accounts and discovered that its freight tickets lacked the requisite documentary stamp tax. The agent confiscated 500 used ticket booklets, counted 1,305 freight tickets within the sample, and assumed each ticket represented baggage valued at more than P5.00. Based on this sample, the Collector of Internal Revenue assessed P15,704.16 in deficiency documentary stamp taxes covering the period from January 1, 1948, to September 16, 1953.

• Mindanao Bus Company operated as a common carrier transporting passengers and freight via auto-buses in Northern Mindanao under certificates of public convenience.
• In September 1953, a Bureau of Internal Revenue agent audited the petitioner's books of accounts and determined that its freight tickets lacked the requisite documentary stamp tax.
• The agent confiscated 500 used ticket booklets and counted 1,305 freight tickets within the sampled booklets.
• Assuming each ticket covered baggage valued at more than P5.00, the Collector of Internal Revenue assessed P15,704.16 in documentary stamp taxes for the period from January 1, 1948, to September 16, 1953.
• The assessment utilized an average method: the Collector combined 86,282 registered booklets with 14,000 estimated used booklets to arrive at 100,282 total booklets, multiplied by an average of 2.61 freight tickets per booklet, yielding 261,736 taxable tickets.
• The petitioner challenged the assessment before the Court of Tax Appeals, which modified the original ruling by eliminating the compromise penalty but upheld the principal tax liability.
• Upon motion for reconsideration, the tax court reopened proceedings to allow the petitioner to present the 500 booklets and 17 sacks of passenger and freight tickets as evidence.
• The petitioner failed to submit the requested materials and instead offered stub tickets already in its possession during the initial hearing, prompting the Court of Tax Appeals to deny the motion.

• Petitioner maintained that the tax assessment was arbitrary, speculative, and grossly exaggerated because it relied on presumptions rather than the best available evidence.
• Petitioner argued that freight tickets issued for excess baggage do not qualify as bills of lading or receipts subject to documentary stamp tax under the prevailing statutory framework.
• Petitioner contended that Section 127 of Regulation No. 26 of the Department of Finance, which classifies non-standard transport receipts as bills of lading, exceeds the rulemaking authority of the Secretary of Finance and violates the Constitution.
• Petitioner asserted that its liability for the assessed amount of P15,704.16 should be nullified given the alleged defects in the assessment methodology and the statutory classification of its tickets.

• Respondent countered that the average method of computation was the only practicable means of determining the tax due, as the petitioner's used booklets were numerous, torn, or destroyed, rendering an actual count impossible.
• Respondent argued that modern jurisprudence defines bills of lading broadly to encompass all forms of transportation, including land carriers' receipts for cargo, thereby bringing the petitioner's freight tickets within the scope of Section 227 of the National Internal Revenue Code.
• Respondent maintained that Section 127 of Regulation No. 26 is valid under the doctrine of legislative approval by reenactment, as the legislature subsequently reenacted the relevant tax provisions with full awareness of the existing regulatory framework.
• Respondent emphasized that the burden of proof rests on the taxpayer to demonstrate inaccuracies in a presumptively correct assessment, a burden the petitioner failed to discharge.

• Procedural Issues: N/A
• Substantive Issues:
  • Whether the Bureau of Internal Revenue's use of an average method to compute documentary stamp taxes constitutes a valid assessment when direct verification is impracticable.
  • Whether freight tickets issued by a land common carrier for excess baggage qualify as bills of lading subject to documentary stamp tax.
  • Whether Section 127 of Regulation No. 26 of the Department of Finance, which expands the definition of bills of lading to include non-standard transport receipts, is constitutionally valid.

• Procedural: N/A
• Substantive:
  • The Court affirmed the validity of the assessment methodology, ruling that the average method was properly employed because an actual count of the petitioner's freight tickets was practically impossible due to their volume and deteriorated condition.
  • Because the assessment carries a presumption of correctness, the burden shifted to the petitioner to prove its inaccuracy, which it failed to do.
  • The Court held that freight tickets for excess baggage constitute bills of lading under the documentary stamp tax law, adopting a modern definition that encompasses written acknowledgments of receipt and agreements to transport goods by any mode of conveyance, not merely maritime vessels.
  • The Court sustained the constitutionality of Section 127 of Regulation No. 26, applying the doctrine of legislative approval by reenactment, reasoning that the legislature's subsequent reenactment of the tax provisions in the National Internal Revenue Code implied ratification of the implementing regulations.
  • Accordingly, the petitioner's liability for the assessed documentary stamp tax was upheld.

• Presumption of Correctness of Tax Assessments and Burden of Proof — Tax assessments issued by the Bureau of Internal Revenue are presumed valid and correct. The burden of proof rests on the taxpayer to present substantial evidence demonstrating inaccuracy or arbitrariness in the computation. The Court applied this doctrine to uphold the average-method assessment, noting that the petitioner failed to introduce contrary evidence to overcome the statutory presumption.
• Legislative Approval by Reenactment — When a legislature reenacts a statute without altering provisions previously interpreted or implemented by administrative regulations, it is presumed to have adopted the existing administrative construction. The Court relied on this principle to validate Section 127 of Regulation No. 26, holding that the reenactment of documentary stamp tax provisions in the National Internal Revenue Code signified legislative ratification of the regulation's expanded definition of bills of lading.
• Modern Definition of Bill of Lading — A bill of lading is not restricted to maritime transport receipts issued by vessel masters but extends to all forms of land, air, and sea transportation. Any written instrument acknowledging the receipt of goods and containing an agreement to transport them to a specified destination constitutes a bill of lading in legal effect. The Court applied this comprehensive definition to classify the petitioner's freight tickets as taxable instruments under Section 227 of the National Internal Revenue Code.

• "Bills of Lading, in modern jurisprudence, are not those issued by masters of vessels alone; they now comprehend all forms of transportation, whether by sea or land, and includes the receipts for cargo transported." — The Court invoked this principle to reject the petitioner's narrow, maritime-centric interpretation and to establish that land-based freight receipts fall squarely within the statutory scope of documentary stamp tax.
• "There is a presumption that the legislature reenacted the law on the tax with full knowledge of the contents of the regulations then in force regarding bills of lading and receipts, and that it approved or confirmed them because they carry out the legislative purpose." — This passage anchors the Court's application of the legislative approval by reenactment doctrine, justifying the continued validity of the Department of Finance's implementing regulation despite the petitioner's constitutional challenge.

• Interprovincial Autobus Co., Inc. vs. Collector of Internal Revenue — Cited as controlling precedent to establish that bus company freight tickets constitute bills of lading subject to documentary stamp tax, to justify the assumption that tickets represent valuable cargo, and to support the principle of legislative approval by reenactment.
• Perez vs. C.T.A. (G.R. Nos. L-9193 and L-10507) — Cited to reinforce the rule that a taxpayer bears the burden of proving the inaccuracy of a tax assessment and that failure to present contrary evidence justifies upholding the assessment.
• Government of P. I. vs. Monte de Piedad — Cited to support the general evidentiary principle that the party challenging an official assessment must produce countervailing proof to overcome the presumption of regularity.

• Section 227, National Internal Revenue Code — Imposes documentary stamp tax on receipts for goods shipped between ports or places in the Philippines. The Court interpreted the statutory language to encompass land-based transport receipts, thereby subjecting the petitioner's freight tickets to the tax.
• Section 127, Regulation No. 26, Department of Finance — Provides that chits, memoranda, and non-standard papers used by common carriers for cargo collection are legally classified as bills of lading for tax purposes. The Court upheld its validity under the doctrine of legislative approval by reenactment.
• Section 1449(q) and (r), Revised Administrative Code — The original statutory provisions that Section 127 of Regulation No. 26 sought to implement, later reenacted in the National Internal Revenue Code, forming the basis for the legislative ratification argument.