Runway is the number of months your startup can operate before it runs out of cash, calculated simply as your cash in the bank divided by your net monthly burn, which is cash going out minus cash coming in. Extending runway is not only about raising the next round. Every week you delay a payment, speed up a collection, or claim a refund, you buy time to reach the next milestone and negotiate from a position of strength. This lesson covers the practical levers a first-time Indian founder can pull, most of them non-dilutive.
Start by measuring burn and runway
Track two numbers every week: your cash balance and your net monthly burn. Build a simple 13-week cash flow forecast in a spreadsheet that lists expected inflows (customer payments, refunds, grant tranches) against outflows (salaries, rent, vendors, GST, TDS). This rolling view warns you months before a crunch, while you still have time to act rather than react.
Speed up money coming in
- Invoice on time and follow up. Raise invoices the day work is delivered, bill in milestones rather than only at the end, and chase receivables systematically. Cash sitting in accounts receivable is not runway.
- Ask for advances and shorter terms. Negotiate part payment upfront and net-15 or net-30 terms with new customers before you become dependent on them.
- Claim your GST refunds. If you export goods or services, supply under a Letter of Undertaking (LUT, Form RFD-11, filed once per financial year) so you do not pay IGST, then claim a refund of unutilised input tax credit through Form RFD-01. Startups with an inverted duty structure, where inputs are taxed higher than outputs, can also claim accumulated ITC. From 1 November 2025, up to 90 percent of an eligible refund claim can be sanctioned provisionally, freeing working capital faster.
Manage vendor terms and the MSME rule
Longer vendor payment terms preserve cash, but there is a critical exception every founder must know. Under the MSMED Act, 2006 and Section 43B(h) of the Income Tax Act, if your supplier is a registered micro or small enterprise, you must pay within the agreed date but no later than 45 days where there is a written agreement, or within 15 days where there is none. Miss the deadline across a financial year end and the expense is disallowed as a tax deduction until you actually pay, and you owe interest at three times the RBI-notified bank rate, compounded monthly, under Section 16 of the MSMED Act. Unpaid micro and small suppliers can also file a delayed-payment claim against you on the government's MSME ODR portal, which replaced the Samadhaan portal for new filings in October 2025. So negotiate extended terms with large vendors, but pay small registered suppliers on time.
Impose spend discipline
- Review every recurring cost monthly and cancel unused SaaS tools and subscriptions.
- Use startup cloud credits, avoid long lock-in contracts, and prefer monthly over annual commitments while you are still finding product-market fit.
- Separate spend you need to survive from spend that is only nice to have, and defer the second list until revenue or funding lands.
- Deposit GST and TDS on time, since late deposits attract interest and penalties, and TDS defaults can lead to disallowance of the related expense.
Pull non-dilutive levers
Before diluting equity, look at capital that does not cost ownership:
- Get DPIIT recognition. Recognition through the Startup India portal is the gateway to startup benefits, including eligibility for the Section 80-IAC income tax holiday, a 100 percent deduction on profits for any three consecutive years within your first ten, plus access to government schemes. The tax holiday needs a separate approval, so check that you qualify.
- Apply for the Startup India Seed Fund Scheme (SISFS). Through approved incubators, eligible DPIIT-recognised startups can receive up to Rs 20 lakh as a grant for proof of concept, prototype development, or product trials, and up to Rs 50 lakh through convertible debentures, debt, or debt-linked instruments for market entry, commercialisation, and scaling.
- Consider venture debt and working capital lines. Once you have some revenue, venture debt or a bank or NBFC working capital facility can extend runway alongside equity without giving up more of the company, provided you can comfortably service the repayments.
Cash discipline is a founder habit, not a one-time exercise. Review your runway weekly, protect it deliberately, and treat every rupee of preserved cash as time bought to build.