⬟ What Is Zero-Based Budgeting? :
Zero-based budgeting (ZBB) is a budgeting method in which every expense must be justified from zero at the start of each budget cycle, rather than using the previous year's spending as a baseline. Each cost is evaluated on its current merits: what it delivers, whether it is still needed, whether it can be obtained more cost-effectively, and whether it should be prioritised given competing uses of the same funds. The contrast with incremental budgeting matters. In the incremental approach, last year's budget is the starting point. Expenses that have become redundant survive because they are part of the baseline. In ZBB, every cost starts at zero and must earn its place through a justification process. For MSMEs, a full ZBB exercise applied to every category every year is typically impractical. A selective or partial ZBB, applied to specific categories on a rotating cycle, delivers most of the benefit without the full administrative burden.
A medium-sized pharmaceutical distributor in Nagpur, Maharashtra conducted a partial ZBB exercise on its overhead cost category after margins declined for two consecutive quarters. Rather than accepting the overhead budget from the prior year, the owner asked each overhead line item to be justified: what activity does this cost support, what would stop working if it were removed, and is there a less expensive way to achieve the same outcome? The exercise identified Rs.1.8 lakh in annual overhead that either no longer served a current business need or could be replaced with a lower-cost alternative.
⬟ Why Should Growing MSMEs Consider Zero-Based Budgeting? :
The primary benefit of zero-based budgeting is cost visibility. Traditional incremental budgeting does not require anyone to examine what each cost actually delivers. ZBB forces that examination and, in doing so, reveals costs that have become disconnected from any current business objective. Even a single ZBB exercise conducted for the first time typically uncovers 5 to 15% of overhead costs that are either redundant or replaceable at lower cost. ZBB also creates cost ownership. When a budget line must be justified by the person or team responsible for it, ownership and accountability shift. Staff who must defend a cost are more likely to manage it actively throughout the year than those who simply receive a budget allocation without scrutiny. For businesses at the growth stage preparing for external financing, investor review, or a major expansion, a ZBB exercise that produces a cleaned-up cost structure and documented cost justifications strengthens both the business's financial position and the credibility of its management to external parties.
A medium-sized garment exporter in Tirupur, Tamil Nadu facing margin pressure applied a zero-based review to administrative and logistics overhead. The review found that three courier service accounts were being maintained with different vendors for overlapping routes, an arrangement that had developed as different staff had set up accounts independently. Consolidating to a single preferred vendor reduced annual logistics costs by Rs.2.4 lakh without any reduction in service levels. A medium-sized engineering components company in Pune, Maharashtra used a partial ZBB when preparing the budget for a year of significant new debt. The owner reviewed all non-production costs under a justify-or-eliminate framework. The review removed Rs.3.1 lakh in annual costs including a lapsed industry membership, unused cloud accounts, a payroll service made redundant by a Tally upgrade, and a training programme that had not run in eighteen months.
For MSME owners, ZBB resets the cost structure periodically and prevents the silent accumulation of unjustified legacy costs. For finance managers and accountants, the exercise provides a structured framework for cost review that can be documented and revisited. For banks and investors reviewing the business, a cost structure that has been examined and justified is more credible than one that is simply carried forward each year. For employees, the ZBB process creates transparency around what costs the business carries and why, which can support a culture of cost consciousness in a growing organisation.
⬟ How Indian MSMEs Currently Manage Budgeting and Cost Review :
The overwhelming majority of Indian MSMEs use incremental budgeting as their default approach. Last year's actual spending becomes this year's starting point, with adjustments made for known cost changes and new initiatives. This approach is practical and low-effort, which is why it is so widely used. The limitation becomes visible over time. In businesses that have been operating for five or more years, the incremental approach often produces budgets that contain a significant layer of costs that have never been challenged. Subscriptions continue because cancellation requires action. Vendor relationships persist because changing suppliers requires effort. Staffing arrangements remain in place because restructuring requires difficult conversations. ZBB is rarely used formally among Indian MSMEs, but elements of the approach appear informally when a business faces a sudden margin squeeze, a loan covenant requiring cost reduction, or a new owner or manager who arrives with a fresh perspective and asks why each cost exists. These trigger events produce the same cost rationalisation that a structured ZBB process delivers systematically.
⬟ How Cost Rationalisation Practices Are Evolving for MSMEs :
Cloud-based accounting and expense management tools are making cost visibility easier at the category and vendor level. Zoho Books and Tally Prime can generate vendor-wise and category-wise expense reports that provide the baseline data for a ZBB review. The ability to see all payments to a specific vendor or all spending in a specific cost category across the full year is the foundational step in any zero-based review. The growth of subscription-based software services has made legacy cost accumulation more prevalent among technology-adopting MSMEs. Many businesses sign up for trials or introductory offers that convert to recurring annual subscriptions. Periodic ZBB-style reviews of software and service subscriptions are becoming a practical annual discipline for businesses with significant technology spend.
⬟ How to Apply Zero-Based Budgeting in a Growing MSME :
A practical ZBB process for an MSME uses a selective approach, rotating across cost categories over a two to three-year cycle, rather than rebuilding the entire budget from zero every year. The process for each category begins with a complete list of all costs in that category over the past twelve months from the accounting software. For each line item, three questions are asked: what does this cost deliver, what would stop working if it were removed, and is there a less expensive way to achieve the same outcome. Costs that cannot be justified against a current business objective are candidates for elimination. Costs that are justified but overpriced are candidates for renegotiation or replacement. Costs that are justified and competitively priced are retained. The result is a justified cost list that becomes the budget for the reviewed category. In the following year, this list is the incremental baseline, and any new cost proposed must be justified before being added. This hybrid approach preserves ZBB rigour for reviewed categories while avoiding a full zero-based exercise every year.
● Step-by-Step Process
Choose the cost categories to review in the current ZBB cycle. A first exercise typically yields the most from overhead, administrative costs, and technology and subscription costs, as these are where legacy accumulation is most common. Pull a full expense report for the selected categories from your accounting software covering the last twelve months. Group costs by vendor or service type within each category to see the complete spending picture. For each cost item, document three things: the purpose of the cost, the consequence of stopping it, and the alternatives. Documenting all three forces a real evaluation rather than an instinctive defence of the status quo. Classify each cost: retain as justified, renegotiate or replace, or eliminate. For any cost classified for elimination or replacement, set a specific owner and deadline. A ZBB exercise that identifies savings but does not result in actual cancellations has delivered analysis but no value. Quantify the annual saving from eliminated and renegotiated costs. Compare it against the time invested to confirm the return on effort and build the case for repeating the exercise in future years. Document the justified cost list for each reviewed category. Use this as the following year's incremental baseline for those categories. Any new cost must be justified before being added, maintaining the discipline the ZBB exercise established. Rotate categories annually. In year one, cover overhead and administrative costs. Year two, technology and subscriptions. Year three, logistics and third-party services. By year three the full cost base has been reviewed at least once.
● Tools & Resources
Tally Prime's expense reports filtered by ledger group and date range provide the category-wise spending data needed for a ZBB review. Zoho Books expense category reports and vendor payment summaries serve the same purpose. A simple spreadsheet with columns for cost item, annual amount, purpose, consequence of stopping, alternative, and classification is sufficient to document the ZBB review. No specialist software is required. A chartered accountant or financial advisor can facilitate the first ZBB exercise and ensure the documentation and savings tracking are structured correctly.
● Common Mistakes
Conducting a ZBB exercise but not following through on eliminations is the most common reason the process delivers no savings. The analysis stage of ZBB is useful, but its value is realised only when identified costs are actually cancelled, renegotiated, or replaced. Every cost classified for elimination needs a specific owner and a specific deadline for action. Applying ZBB to the entire budget in the first year creates an administrative burden that most MSMEs cannot sustain. A selective approach, starting with one or two high-overhead categories, is more likely to complete successfully and more likely to generate enough visible savings to motivate continued use of the method in subsequent years. Not documenting the justified cost list means the ZBB exercise resets nothing. The point of the exercise is to establish a new, cleaner cost baseline. Without documentation, the incremental budgeting process in the following year simply adds the eliminated costs back in as new expenses under slightly different names.
● Challenges and Limitations
ZBB is more time-intensive than incremental budgeting. For a busy owner or management team, justifying every cost in a category is a real barrier. The practical solution is to limit each annual cycle to one or two categories and schedule the review as a fixed business process rather than an ad hoc task. Some costs are genuinely difficult to justify against a single business objective. Compliance costs, statutory obligations, and safety-related expenses are incurred because they are required, not because they pass a cost-benefit test. ZBB reviews should exclude legally required costs from elimination candidates, focusing on discretionary and operational overhead. ZBB can create anxiety among staff if perceived as targeting headcount. Communicating that the exercise focuses on non-people costs and aims to redirect spending toward higher-value uses helps maintain team confidence during the review.
● Examples & Scenarios
A medium-sized hospitality supply company in Hyderabad, Telangana with Rs.4.1 crore turnover conducted its first ZBB exercise on overhead after net margin declined from 9% to 6% over two years despite 30% revenue growth. The review of 47 overhead items identified Rs.4.8 lakh in annual savings. The largest item was Rs.1.4 lakh from consolidating three separate security service contracts, signed at different times for different premises, into a single contract at a negotiated rate. A medium-sized food processing company in Ludhiana, Punjab applied ZBB to software and subscription costs after monthly charges had grown from Rs.12,000 to Rs.38,000 over four years without review. The exercise found seven subscriptions totalling Rs.18,000 per month that could be cancelled immediately: either unused, or replaced by capability already available in software the company already paid for.
● Best Practices
Run the ZBB exercise on a defined two to three-year rotation across cost categories. This prevents the technique from becoming a one-time exercise and ensures the full cost base is reviewed periodically without creating an annual burden. Always quantify the savings from each ZBB cycle and document them against the time invested. This makes the return on the effort visible and provides the business case for continuing the practice in subsequent years. Use the ZBB-justified cost list as the following year's incremental baseline for the reviewed categories. This is the mechanism that prevents the eliminated costs from creeping back in through the incremental budgeting process. Apply ZBB proactively at significant business inflection points: before taking on new debt, before a major expansion, or at the start of a year in which margin is under pressure. These are the moments when a clean cost baseline is most valuable.
⬟ Disclaimer :
This content is for informational and general guidance purposes. Zero-based budgeting outcomes depend on individual business conditions and management decisions. Readers should work with qualified financial professionals when applying budgeting methods to their specific business situation.
