New vs Old Tax Regime Calculator for Business Owners FY 2025-26

Compare new vs old income tax regime for sole proprietors, freelancers, and business owners. Enter your net profit and deductions to see which regime saves more tax in FY 2025-26.

New vs old income tax regime: the business owner's decision

The income tax regime choice affects every rupee you earn. For salaried employees, the math is straightforward. For business owners, sole proprietors, and freelancers, the decision is more nuanced — and the stakes are higher.

FY 2025-26 new regime slabs

The Union Budget 2025 revised the new regime slabs, making it significantly more attractive:

Income slab Tax rate
Up to ₹4 lakh Nil
₹4 lakh – ₹8 lakh 5%
₹8 lakh – ₹12 lakh 10%
₹12 lakh – ₹16 lakh 15%
₹16 lakh – ₹20 lakh 20%
₹20 lakh – ₹24 lakh 25%
Above ₹24 lakh 30%

Section 87A rebate: Under the new regime, if your total income does not exceed ₹12 lakh, the entire tax liability (up to ₹60,000) is rebated. Effectively, zero tax up to ₹12 lakh.

FY 2025-26 old regime slabs

Income slab (age < 60) Tax rate
Up to ₹2.5 lakh Nil
₹2.5 lakh – ₹5 lakh 5%
₹5 lakh – ₹10 lakh 20%
Above ₹10 lakh 30%

Senior citizens (60–79): basic exemption ₹3 lakh. Super seniors (80+): ₹5 lakh.

What deductions can business owners claim?

Under the old regime, business owners can typically claim:

Deduction Section Maximum
LIC, PPF, ELSS, home loan principal 80C ₹1,50,000
Health insurance premium 80D ₹25,000 (₹50,000 senior)
Home loan interest (self-occupied) 24(b) ₹2,00,000
NPS additional contribution 80CCD(1B) ₹50,000
Education loan interest 80E Actual
Charitable donations 80G 50–100% of donation

The new regime does not allow these deductions (except employer NPS contribution under 80CCD(2)).

When does the old regime win?

The breakeven depends on your income level. As a rule of thumb:

  • Income ≤ ₹12L: New regime almost always wins (zero tax via rebate)
  • Income ₹12L–₹20L: Old regime wins if total deductions exceed ~₹2–2.5L
  • Income ₹20L–₹30L: Old regime wins if deductions exceed ~₹3L
  • Income > ₹30L: High earners with maximum deductions (₹3.5L+) often prefer old regime

KEY POINTS FOR BUSINESS OWNERS

  • No standard deduction of ₹75K for business owners under new regime (only salaried)
  • Business expenses (rent, salary, internet, depreciation) are deductible in both regimes
  • Section 44AD (presumptive): 8% of gross receipts is deemed income — factor this before using this calculator
  • Regime switch: Business owners can switch regime each year, unlike salaried employees
  • Advance tax: Under either regime, pay quarterly installments if tax > ₹10,000

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