When dealing with tax filing deadlines, the specific dates by which businesses must submit tax returns and payments to avoid penalties. Also known as tax due dates, they form the backbone of any compliance plan. Alongside, you’ll often run into GST filing, the periodic submission of Goods and Services Tax returns in India, the IRS tax deadline, the annual deadline for U.S. federal tax returns, typically April 15, and niche rules like angel tax, the tax charge on certain startup funding in India under Section 56(2)(viib). Understanding how tax filing deadlines intersect with business tax deductions, eligible expenses that lower taxable income can save you money and keep the tax authorities at bay.
First, tax filing deadlines encompass multiple frameworks: the U.S. IRS schedule, India’s GST calendar, and sector‑specific charges like angel tax. Second, missing a deadline triggers interest, penalties, and sometimes audit triggers, which can cripple cash flow. Third, the deadline calendar informs your internal processes – you’ll know when to start gathering invoices for GST, when to reconcile payroll for IRC 941, and when to file Form 1023 for charitable deductions. For a typical Indian SME, the GST filing dates (monthly by the 20th, quarterly by the 30th) line up with the annual income‑tax return due on July 31. In the U.S., the March 15 deadline for S‑corp and partnership returns precedes the individual filing cut‑off on April 15, shaping the timing of quarterly estimated payments. By mapping these dates side‑by‑side, you create a unified compliance roadmap.
What you’ll find in the articles below is a practical toolbox: step‑by‑step guides for filing GST online, clear checklists for meeting the IRS deadline, strategies to avoid angel tax pitfalls, and a rundown of deductible expenses you can claim in 2025. Whether you run a bootstrapped startup, a mid‑size manufacturing firm, or a solo freelancer, the collection covers the full spectrum of deadlines and the actions you need to take before the clock runs out. Dive in to see how each deadline fits into your business rhythm and how you can turn compliance into a competitive advantage.
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