This study determined the trends on revenue generation among selected Municipalities in Surigao del Sur for Fiscal Years 2000-2018. It employed a descriptive method of research using Trend Analysis. The study is conducted in selected coastal Municipalities, namely: Bayabas, Marihatag, San Agustin, and Tago. The study found that all municipalities understudy generated revenue from local and external sources. The local sources include the following: Real Property Tax, Business Tax, Other Taxes, Regulatory Fees, Service Charges, and Income from Economic Enterprises. Externally sourced revenues include the Internal Revenue Allotment (IRA), Share from the National Wealth, Grants and Donations, Extraordinary Receipts, Loans and Borrowings and other Local Government Transfers. The study revealed that the difference in revenue of the concerned Municipalities is mainly attributed to their income classification, Tago, a 2nd class Municipality-followed by Marihatag (3rd class), San Agustin (4th class) and Bayabas (5th class). Thus, LGUs concern are encouraged to increase their revenue generation efforts through different strategies. They may focus on improving their Real Property Tax and Business Tax assessment and collection system. They may also engage in various public-private partnership to finance various socio-economic development endeavors, like investing in viable modern economic enterprises. Thus, when revenue increases, LGUs can finance the essential social welfare services that were not prioritized due to inadequacy of resources.