Annual turnover refers to total operating revenue or sales generated by the borrower during a financial year. In MSME underwriting, it supports enterprise-size classification, eligibility, limit assessment, repayment capacity analysis, and trend review. In MSME underwriting, it is read as part of the financial assessment and is usually compared across periods, peers, banking conduct and management explanations. For example, sales growth should be compared with GST returns, bank credits and receivable movement so inflated or unsustainable turnover is not accepted at face value. It matters because the number can influence eligibility, limit sizing, repayment comfort, leverage view and early-warning assessment. The common mistake is to use it mechanically; seasonality, accounting treatment, one-off items and data mismatches can change the credit interpretation.