Should FIRE investors use old or new tax regime?

It depends on your deductions. If you max out 80C, 80CCD(1B), HRA, and have other exemptions, the old regime often wins. If you have few deductions, the new regime with lower slabs may be better. Run the numbers for your situation.

Does NPS 80CCD(1B) work in new tax regime?

No. The new tax regime does not allow 80C, 80CCD(1B), HRA, LTA, or most other exemptions. If you rely on these for tax savings, the old regime is usually better.

What about tax in retirement?

In retirement, your income may be lower. PPF, EPF, and NPS (partial) withdrawals have specific tax treatment. Plan for tax-efficient withdrawal to minimise tax in retirement.

Old vs New Tax Regime for FIRE

India offers two tax regimes: the old regime (with exemptions like 80C, 80CCD(1B), HRA, LTA) and the new regime (lower slabs, fewer exemptions). For FIRE investors who maximise tax-advantaged savings, the choice matters.

Key Differences

Factor	Old Regime	New Regime
80C (₹1.5L)	Yes	No
80CCD(1B) NPS (₹50K)	Yes	No
HRA, LTA	Yes	No
Tax slabs	Higher	Lower (rebate up to ₹7L)

When Old Regime Works for FIRE

If you invest in ELSS, PPF, NPS, and claim HRA (if renting), the old regime often results in lower tax. The ₹2 lakh total deduction (80C + 80CCD(1B)) plus HRA can save significant tax for FIRE savers.

When New Regime Works

If you have minimal deductions (e.g., no HRA, not maxing 80C), the new regime's lower slabs and rebate (no tax up to ₹7 lakh) may be better. Salaried employees can switch regimes each year—choose the one that minimises your tax.

Retirement and Withdrawal

In retirement, plan for tax-efficient withdrawal. PPF and EPF withdrawals are tax-free. NPS has specific rules. Structure your corpus to minimise tax when you start drawing down.