How to manage GST and Income Tax filings for startups?

Startups must set a fixed tax calendar, track invoices daily, file GST returns on time, and submit income tax returns based on company structure. Use the GSTN portal for GST filings, prepare Form GSTR-1 and GSTR-3B monthly, and file ITR-6 annually while monitoring turnover thresholds like Section 44AD.

Why startups need a tax filing system from day one

You must register under GST if turnover crosses ₹40 lakh for goods or ₹20 lakh for services.
You must issue GST-compliant invoices for every taxable sale.
You must maintain purchase records to claim input tax credit (ITC).
You must link your PAN with GST registration to avoid filing errors.
You must track due dates to avoid late fees and interest.

What filings does a startup need to handle?

GST filings for small businesses

You must file GST returns based on your registration type.
You must use the GSTN portal for all submissions.

Monthly GST filings

You must file Form GSTR-1 to report outward supplies.
You must file Form GSTR-3B to declare tax liability.
You must pay GST before submitting GSTR-3B.

Quarterly GST filings (QRMP scheme)

You must opt for QRMP if turnover is below ₹5 crore.
You must file GSTR-1 quarterly instead of monthly.
You must still pay tax monthly using PMT-06.

Income tax filings for startups

You must determine your business structure first.
You must file returns based on entity type.

For companies

You must file ITR-6 annually.
You must get accounts audited if turnover crosses ₹1 crore.

For proprietors and partnerships

You must use ITR-3 or ITR-4 based on income type.
You can opt for presumptive taxation under Section 44AD if turnover is below ₹2 crore.

How to build a monthly GST workflow

Step 1: Record all invoices daily

You must log sales invoices with GST details.
You must record purchase invoices for ITC claims.

Step 2: Reconcile input tax credit (ITC)

You must match purchase data with GSTR-2B.
You must remove unmatched invoices before filing.

Step 3: Prepare GSTR-1

You must upload invoice-level data.
You must verify GSTIN of customers.

Step 4: File GSTR-3B

You must calculate total output tax.
You must subtract eligible ITC.
You must pay the remaining tax liability.

Step 5: Maintain proof of payment

You must store challans and return acknowledgments.

If your startup is facing GST notices or ITC mismatches, contact Kyoryokuna to review your filings and correct errors before penalties apply.

How to manage quarterly GST filings (QRMP)

You must check eligibility under ₹5 crore turnover.
You must file GSTR-1 once every quarter.
You must pay tax monthly using estimated liability.
You must reconcile quarterly data before submission.

How to manage annual income tax filings

Step 1: Close books at financial year-end

You must finalize profit and loss statements.
You must prepare balance sheets.

Step 2: Calculate taxable income

You must adjust expenses as per tax rules.
You must exclude non-deductible expenses.

Step 3: Check audit requirement

You must audit accounts if turnover exceeds ₹1 crore.
You must file audit report before tax return.

Step 4: File income tax return

You must submit ITR-6 for companies.
You must verify return using DSC or Aadhaar OTP.

What are the key GST and tax deadlines?

Monthly deadlines

You must file GSTR-1 by the 11th of next month.
You must file GSTR-3B by the 20th of next month.

Quarterly deadlines

You must file quarterly GSTR-1 by the 13th of the month following the quarter.

Annual deadlines

You must file income tax returns by 31st October for audited entities.
You must file returns by 31st July for non-audited cases.

What problems do startups face in GST filing?

Input Tax Credit (ITC) mismatch

You must reconcile supplier data with GSTR-2B.
You must follow up with vendors for missing invoices.

Cash flow issues due to GST payments

You must track tax liability weekly.
You must plan working capital for GST payments.

Incorrect classification of goods or services

You must use correct HSN or SAC codes.
You must verify GST rates before invoicing.

What problems do startups face in income tax filing?

Misreporting of expenses

You must separate personal and business expenses.
You must maintain digital records of all transactions.

Missing audit thresholds

You must monitor turnover regularly.
You must initiate audit early if limits are crossed.

Choosing wrong tax regime

You must compare normal taxation vs Section 44AD.

How to create a tax calendar for your startup

You must create a monthly checklist for GST filings.
You must set reminders for due dates.
You must assign responsibility to one team member.
You must review compliance status every month.

When should startups use professional support?

You must consider external support when transactions increase.
You must use professional help if ITC mismatches occur frequently.
You must seek support before audit deadlines.
You must ensure filings are accurate to avoid notices.

Professional support manages:

• GST return filing
• ITC reconciliation
• Income tax computation
• Audit preparation

The outcome is compliance with fewer errors.

If you need help setting up your GST and tax filing process, visit Kyoryokuna and request a consultation to map your filing calendar and compliance steps.