In Q1'26, TSMC's total operating expenses reached $94.98B USD, with R&D expenses at $68.46B USD and SG&A expenses at $26.52B USD, marking a slight increase from Q4'25's total of $88.19B USD and reflecting ongoing investment in innovation amid stable administrative costs. From Q2'23 to Q1'26, operating expenses exhibited a consistent upward trend, growing from $58.19B USD to $94.98B USD, driven primarily by R&D which surged 64% over the period to support semiconductor advancements, while SG&A rose more modestly by 60% with notable volatility, peaking at $29.11B USD in Q4'24 before stabilizing around $24B-$26B USD in recent quarters. This pattern underscores TSMC's strategic focus on research amid expanding operations, with no significant declines observed across the 12-quarter span.