Filing
Salary plus side income: filing when you have both
How salaried people with freelance or creator income should calculate tax, pay the gap and pick a form.
By Aditya Kulkarni4 min read
A day job plus freelance projects, tutoring or a growing channel is now common. The tax side is where people get caught out: your employer’s TDS only covers your salary, so the extra income is taxed at your highest slab with nothing set aside for it. Here is how to handle both together for FY 2025-26 (AY 2026-27).
Your side income is not “other income”
Freelance fees, consulting and creator earnings are generally income from business or profession, not “income from other sources”. That matters because it changes which return form you use, whether presumptive taxation is available, and how you switch regimes. Interest on savings and FDs, by contrast, does go under other sources.
Why your employer’s TDS falls short
Your employer calculates TDS as if salary were your only income. Tax works on total income, though, so every rupee of side income stacks on top of your salary and is taxed at the slab your salary has already reached. If your salary has taken you into the 15% or 20% slab, that is the rate your side income starts at.
Worked example
Vikram earns a salary of ₹14,00,000. He also does weekend consulting for ₹6,00,000, all received by bank transfer, and declares it under 44ADA, so 50% — ₹3,00,000 — is his deemed profit. He uses the new regime.
What his employer deducts. Taxable salary is ₹14,00,000 − ₹75,000 = ₹13,25,000.
- Tax up to ₹12 lakh: ₹60,000
- ₹1,25,000 at 15%: ₹18,750
- Tax ₹78,750 + 4% cess ₹3,150 = ₹81,900
What he actually owes. Total income is ₹13,25,000 + ₹3,00,000 = ₹16,25,000.
- Tax up to ₹16 lakh: ₹1,20,000
- ₹25,000 at 20%: ₹5,000
- Tax ₹1,25,000 + cess ₹5,000 = ₹1,30,000
The gap is ₹1,30,000 − ₹81,900 = ₹48,100. One client paid him ₹2,00,000 and deducted 10% TDS under 194J, so ₹20,000 is already credited. He still owes ₹28,100.
Since that is more than ₹10,000, advance tax applies. Because his side income is presumptive under 44ADA, the whole amount was due by 15 March 2026. Had he waited until filing, he would face interest under 234C and 234B on the shortfall.
Which form to use
- Side income declared under 44ADA or 44AD, total income up to ₹50 lakh: ITR-4.
- Side income with regular books, or extra complexity such as capital gains beyond the ITR-4 limits or foreign assets: ITR-3.
- ITR-1 is out the moment you have any business or professional income, even a single invoice.
For AY 2026-27, ITR-3 and ITR-4 without audit were due by 31 August 2026 — a month later than ITR-1 — under the Budget 2026 calendar.
Regime choice gets stricter
A purely salaried person can pick the old or new regime every year in a return filed on time. Once you have business or professional income, the rules for individuals with business income apply: to use the old regime you file Form 10-IEA before the due date, and you can come back to the new regime only once. If your old-regime deductions are marginal, staying in the new regime avoids using up that one switch.
Reconcile before you file
Side income leaves a trail. Client TDS appears in Form 26AS, and payments, interest and other transactions often show in your AIS. Before filing:
- Match every client’s TDS in 26AS to invoices you raised.
- Check AIS for receipts you may have missed.
- Add your advance-tax challans to the tax-paid section.
- Make sure your Form 16 salary figures match the return.
Habits that make next year easier
- Keep a separate bank account for side income, so receipts and expenses are easy to total.
- Set aside about 20–30% of each payment, depending on your slab, until you have worked out the actual tax.
- Estimate your full-year liability by early March and pay before the 15 March deadline.
- If your side income crosses GST or bookkeeping thresholds, plan for that early rather than at filing time.
Handled this way, a side income adds an hour of work at filing time rather than a surprise tax bill.
General information, not tax advice. Rules change, so check the latest rules or speak to a CA before you act.