Resources
Showing 231 results
Calculators
All Taxes
A comprehensive tool for calculating all tax liabilities, including income, FICA, capital gains, and state taxes. Ideal for a complete overview of one's tax situation in one go.
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Federal Income Taxes
Specialized in calculating federal income tax liabilities based on various income levels and filing statuses. It simplifies understanding federal tax obligations.
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Articles
Getting Started With Excel
This guide introduces users to the basics of making OSI Finance API calls with Excel, focusing on how to effectively utilize Excel with OSI Finance calculators.
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2023 Federal Marginal Income Tax Rates: A Primer
An overview of the federal marginal income tax rates for 2023, explaining how these rates apply to different income levels.
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Product Ratings
Best Checking Accounts April 2025
A curated list of the top checking accounts, updated monthly to reflect the latest offerings and features.
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Best Brokerages April 2025
Monthly updated recommendations for the best brokerage accounts, considering fees, features, and user experience.
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Maps
Income Tax Rates
An interactive map displaying income tax rates across different regions, providing a visual guide to state-level taxation.
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State Income Taxes
A detailed map illustrating state income tax rates and structures, offering a quick reference for interstate comparisons.
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FAQ