Startup burn rate and runway 2026: calculation and 90-day plan to extend your cash

Updated 15 May 2026. Burn rate and runway are the two financial indicators every startup founder must master. They determine how long you have before running out of cash — and therefore the window available to reach profitability or close a new funding round. In 2026, with fundraising more competitive and due diligence more thorough, managing these metrics precisely is not optional.

Hayot Expertise supports startups, SASU and SAS entities in Paris with financial dashboards, cash flow planning and fundraising preparation. This article covers exact definitions, 2026 benchmarks, and a concrete 90-day plan to extend runway when cash is under pressure.

Quick summary. Gross burn is the total of all monthly cash outflows. Net burn deducts incoming revenue. Runway in months equals available cash divided by net burn. In 2026, a healthy runway exceeds 18 months. Below 12 months, a corrective plan should start immediately. Below 6 months, the situation is critical.

Gross burn rate: total monthly cash out#

Gross burn is the sum of all cash outflows in a calendar month: salaries and employer social charges, rent, SaaS subscriptions, contractors, servers, marketing agencies, and general administrative costs (G&A). It is the cash that actually leaves the bank account, regardless of revenue. For a team of 8 people in Paris with office space, gross burn typically falls between EUR 120,000 and EUR 200,000 per month depending on seniority levels.

On the accounting side, gross burn consolidates debit entries in expense classes and corresponds to operating outflows in the cash flow statement. It does not include principal debt repayments, which appear under financing activities.

Net burn rate: the real monthly deficit#

Net burn is the net cash consumption after deducting inflows. Formula: net burn = gross burn - monthly cash receipts (client revenue, licences, grants received in cash). A B2B startup collecting EUR 50,000 in MRR with EUR 200,000 in gross burn has a net burn of EUR 150,000.

The distinction matters: a pre-revenue startup has identical gross and net burn. A growing startup with increasing revenue sees its net burn compress progressively until it reaches cash break-even. Conflating the two produces a misleading picture of the trajectory.

Runway: how many months do you have?#

Runway (months) = available cash / monthly net burn

With EUR 2,400,000 in the bank and net burn of EUR 200,000/month, runway is 12 months. If headcount or marketing spend is growing, use the trailing 3-month average net burn or build a monthly forward forecast. Available cash should exclude restricted funds (security deposits, VAT provisions, payroll taxes still to be paid) and include only unrestricted current account balances.

Three documents to consolidate monthly#

Accurate burn monitoring relies on three monthly financial documents: (1) a monthly income statement by cost category, to identify which lines are drifting; (2) a 13-week rolling cash flow forecast, to anticipate shortfalls; (3) a simplified monthly balance sheet, to track working capital. These documents are complemented by a KPI dashboard integrating MRR, churn, CAC and LTV for SaaS businesses.

Cost classification: fixed, variable and semi-variable#

The burn diagnostic begins with exhaustive cost classification. Fixed costs (rent, permanent headcount, infrastructure subscriptions) form the non-compressible base. Variable costs (commissions, paid acquisition, project-based contractors) can be switched on and off quickly. Semi-variable costs adjust with a 30-to-60-day lag. In a burn reduction plan, the sequence is: variable first, then semi-variable, then fixed as a last resort.

SaaS metrics: MRR, ARR, CAC, LTV, ARPU#

For a SaaS startup, net burn cannot be interpreted without growth metrics. An LTV/CAC ratio above 3 with a payback period below 18 months signals a viable model. ARPU quantifies the impact of an expansion strategy on net burn compression: a 20% increase in ARPU from the existing base can add several months of runway without a single new hire.

In 2024-2025, the French and European venture capital market tightened significantly: valuations fell, rounds took longer to close, and investors demanded longer runway at entry. France Invest data (to be confirmed) indicates that Series A and B rounds took an average of 5 to 8 months to close in 2024-2025. This reality means that investor discussions should start well before 12 months of runway, with 18 to 24 months targeted at closing.

Typical burn for a 5-15-person pre-revenue team in Paris#

For a 5-person team in Paris (3 developers, 1 product manager, 1 CEO) in coworking, gross burn typically falls between EUR 60,000 and EUR 100,000 per month. For a 10-to-15-person team with 2 salespeople, a senior CTO and support functions, gross burn rises to EUR 150,000-250,000 per month. These ranges include employer social charges (approximately 42% above gross salary for a full CDI employee outside exemption schemes).

Phase 1, days 1 to 15: diagnosis#

The first two weeks must produce an exhaustive analytical picture of costs. The goal is not to cut immediately but to understand: which lines are strategic, which are legacy, which contracts have not been reviewed recently. Extract 6 months of bank statements, categorise them (HR, infrastructure, marketing, G&A, tools, premises, vendors), and date each commitment. This mapping systematically reveals 8 to 15% of costs that were not consciously tracked.

Phase 2, days 15 to 30: reducing non-strategic costs#

The SaaS audit is usually the first lever. Startups accumulate tools — dormant licences, redundant subscriptions, tools used by only one or two people. A methodical audit identifies those whose value is marginal. Savings of EUR 5,000 to EUR 20,000 per month on this single line are common. Contractor contracts also deserve review: which are tied to a strategic activity, which are habitual?

Phase 3, days 30 to 45: HR decisions#

Freezing planned hires is typically the first step: deferring a senior hire by 3 to 6 months reduces burn by EUR 8,000-15,000 per month without immediate productivity impact. If restructuring is necessary, the applicable French labour law framework (PSE, rupture conventionnelle collective, accord de performance collective) must be followed with the support of a specialist employment lawyer. Hayot Expertise covers the financial and accounting dimension of these plans, not the legal representation.

Phase 4, days 45 to 60: commercial recovery#

Under cash pressure, commercial effort should refocus on what generates cash quickly: expansion within existing accounts (upsell, cross-sell), churn reduction (identify at-risk customers, activate retention playbooks), and accelerating collections. A customer switching from monthly to annual prepay immediately improves cash by 11 months of subscription revenue.

Phase 5, days 60 to 75: supplementary financing#

Several non-dilutive financing options exist before considering a dilutive round. BPI France's Pret Innovation can finance up to EUR 5 million for innovative projects at non-dilutive rates. A bridge loan from existing investors provides short-term debt convertible at the next round with a discount. Revenue-based financing (RBF), offered by providers such as Karmen or Unlimitd, allows borrowing against future revenue with repayment proportional to MRR.

Phase 6, days 75 to 90: weekly monitoring#

A weekly reporting cadence tightens the feedback loop: cash balance on Monday morning, week's expenses, variance against forecast, commercial indicators. The plan is presented to the board every two weeks, with a clear decision point: continue, accelerate cuts, or pivot the financing strategy.

Bridge loan: pros and limits#

A bridge loan is typically granted by existing investors, convertible at the next round with a preferred conversion rate (15-25% discount on next round valuation, or a valuation cap). Advantages: speed (2 to 6 weeks), no immediate dilution, signal of support. Limits: it creates a liability on the balance sheet, may complicate the next round negotiation if the expected valuation is lower than the previous round.

New round: when is it preferable?#

A new institutional round is preferable when the startup has reached sufficient metrics to negotiate from a position of strength (ARR above EUR 1 million for a Series A in 2026, controlled churn, net revenue retention above 100%), and when the capital need is structural. The informal rule: start discussions at 18 months, target closing at 12 months.

Non-dilutive debt options in France#

BPI France Pret Innovation (fixed rate, 5-7 years, possible capital moratorium) is designed for innovative SMEs and startups. Receivables financing (affacturage) improves working capital without dilution. Some family offices and specialist debt funds offer mezzanine loans at 8-14% rates without immediate dilution — compare this to the dilution cost of a new round at current 2026 valuations.

A 12-person Paris B2B SaaS startup raised EUR 6 million in a Series A in early 2024. ARR at the time: EUR 2 million. Gross burn: EUR 250,000/month. Net burn: EUR 200,000 (EUR 50,000 in MRR collected). Initial runway: 30 months.

Two years later, in early 2026: ARR had grown to EUR 3.2 million but slowly (rising churn in the mid-market), gross burn had increased to EUR 280,000, net burn stood at EUR 213,000. Remaining cash: EUR 1,800,000. Recalculated runway: 8.5 months.

The startup engaged a 90-day plan with Hayot Expertise as external CFO: SaaS audit (EUR 18,000/month saved), freeze of two planned hires (EUR 22,000/month saved), customer retention focus (churn reduced from 3.5% to 2.1% monthly), BPI application filed. At day 90, net burn had returned to EUR 155,000, runway had extended to 12 months, and bridge discussions of EUR 1.5 million were underway in materially better conditions.

For early-stage startups, a well-structured spreadsheet (18-month cash flow forecast, MRR and churn tracking, budget-vs-actual) is often sufficient. From the growth phase onwards (team above 10 people, ARR above EUR 500K), specialist tools add real value. Pennylane synchronises bank and accounting flows in real time. Pigment and Finthesis enable dynamic scenario simulations. These platforms also include investor reporting formats.

Spreadsheet vs SaaS tooling: how to choose#

The spreadsheet approach works well as long as one team member (typically the CEO, CFO or operations lead) is willing to keep the model up to date weekly. Beyond a certain complexity (multiple entities, multiple revenue streams, several scenarios in parallel), the maintenance burden makes a dedicated tool more efficient. Indicators that justify the move to a dedicated platform include: more than three scenarios maintained in parallel, more than two operating entities, an active investor reporting cadence with month-over-month comparisons, or recurring delays in producing the monthly board pack.

Integrating the burn dashboard with accounting#

The most robust setup connects the burn dashboard directly to the accounting general ledger. With Pennylane or a similar tool, bank reconciliation feeds the cost categorisation automatically, removing the lag between actual cash outflow and dashboard refresh. The CFO or external accountant can then issue the burn report on the third working day of each month, instead of waiting two to three weeks for the formal monthly closing. This compressed feedback loop is decisive when the company is in cash pressure.

A startup may show stable MRR and a controlled net burn at the company level while quietly destroying value at the customer cohort level. The cohort view is the only way to detect this drift early.

Why cohort analysis matters for burn#

Customer acquisition costs (CAC) are recognised in the month they are incurred, but revenue is earned over the customer lifetime. When CAC rises faster than expected and lifetime value (LTV) deteriorates because of higher churn, net burn appears stable for several quarters before the company hits a cliff. By that time, the corrective options are much narrower.

The recommended discipline is to compute, for each monthly acquisition cohort, the cumulative net revenue retention at month 6, 12 and 24, and to plot it against the fully loaded CAC of that cohort. A cohort that has not reached 100% net revenue retention by month 12 is a red flag, even if the company-level metrics look healthy.

Linking cohort drift to the burn plan#

When the cohort analysis reveals deteriorating unit economics, the burn reduction plan must include a quality-of-revenue workstream: tightening the ideal customer profile (ICP), recalibrating the pricing structure, and reallocating sales capacity away from segments that churn quickly. These actions improve net burn more durably than purely cost-side measures because they compound over future cohorts.

A company-level burn target only becomes actionable when broken down by function. The typical allocation for a Series A SaaS in France, based on our client work, looks like this.

These ranges are indicative and vary materially across business models (pure SaaS vs services-heavy vs hardware-software). The point is to anchor the discussion in numbers and to make trade-offs visible at board level rather than diluting them across the P&L.

How to challenge each line in a 30-minute review#

For each function, three questions structure the review: (i) what is the marginal contribution to ARR growth in the next 12 months? (ii) what is the cost of stopping or pausing this activity for 90 days? (iii) what is the recovery path if growth accelerates again in 12 months? This three-question framework forces the conversation away from "everything is essential" and into a concrete prioritisation.

A burn plan that ignores scenarios is a budget, not a plan. We systematically model three scenarios for our startup clients.

Base case#

The base case assumes the current trajectory continues: same growth rate as the trailing three months, no major hire, no churn shock, no large customer win. It is the reference scenario for board reporting and is updated each month with actuals.

Downside case#

The downside case assumes one of the following triggers materialises in the next six months: loss of a top three customer, hiring of a senior contributor needed earlier than planned, a competitor's price reduction that compresses ARPU by 10%, or a fundraising slippage of three to six months. The downside case is essential because it determines the trigger points for the burn reduction plan. A company that has not modelled its downside is reactive; a company that has modelled it is prepared.

Upside case#

The upside case assumes one of the following: a large customer win that compresses net burn, a successful price increase, or an early closing of the next round. The upside case is not a wish list. It quantifies the cash improvement available if a specific event occurs and helps the management team see which actions would be safest to undertake under that scenario (for example, accelerating a hiring plan).

How to use the three scenarios at board level#

We recommend presenting the three scenarios at every board meeting on a single slide, with the runway in months under each. This format compresses an entire CFO dossier into a single decision-grade chart and forces the board to articulate explicitly which scenario they consider most probable.

Beyond the BPI and bridge tools mentioned above, several France-specific levers are systematically under-used by founders, especially those who arrived from an Anglo-Saxon environment.

CIR and CII pre-financing#

The Credit d'Impot Recherche (CIR) and the Credit d'Impot Innovation (CII) can be pre-financed by BPI France or specialist providers up to 12 to 18 months before the actual tax credit is paid. For a startup with EUR 600,000 of expected annual CIR, this can release EUR 450,000 to EUR 540,000 of cash immediately. The cost is typically between 1% and 4% of the financed amount, which is far cheaper than equity dilution at current 2026 valuations.

JEI / JEIC / JEIR exemptions#

The Jeune Entreprise Innovante family of regimes (JEI, JEIC, and the JEIR introduced by the December 2023 finance act) provides social contribution exemptions on R&D headcount and corporate income tax relief in early years. For a 12-person startup with 70% of headcount on R&D activities, the exemption can amount to EUR 250,000 to EUR 400,000 per year of cash retained — directly extending runway without any new financing.

Factoring and reverse factoring#

Receivables factoring (affacturage) compresses the cash conversion cycle by financing trade receivables. Reverse factoring (offered by some banks and fintech platforms) does the opposite by accelerating payment to strategic suppliers in exchange for a small discount, which can be a powerful negotiation lever during supplier renewals in a cash-pressured period.

Public grants and innovation aid#

Programmes such as the i-Lab competition, France 2030 calls, regional innovation grants, and Horizon Europe (European-level) grants provide non-dilutive funding that can materially extend runway. The application effort is significant (typically four to eight weeks of internal work), but the funding obtained does not dilute existing shareholders and signals quality to subsequent venture investors.

Effective burn management is also a communication exercise. Different stakeholders need different framings.

Communicating to the board#

The board sees the three scenarios, the trigger points, and the current month's actuals versus the base case. The board does not need granular cost-line detail unless a specific decision is on the table.

Communicating to the team#

The team needs simple, repeatable messages: how many months of runway, what plan is in place, what is expected of each function. Over-disclosing financial detail to the team can trigger anxiety and unwanted departures; under-disclosing leaves the team blind to the urgency.

Communicating to investors#

Investors expect monthly updates with a consistent dashboard format. Departure from the agreed format raises suspicion. The most reassuring update is not one that hides difficulties but one that demonstrates that management has anticipated them and has a credible plan.

Communicating to suppliers and partners#

In a cash-pressured period, proactive communication with key suppliers (asking for extended payment terms or staggered invoicing) is almost always better received than a passive payment delay. A supplier that learns about a delay through a missed payment will be less collaborative than one informed in advance and offered a partial payment.

Beyond the gross-versus-net burn confusion already discussed, four other mistakes recur in our client portfolio.

Mistake 1: optimising for the next round rather than for the business#

Founders sometimes stretch reported metrics (MRR booked but not collected, churn reclassified as pause) to make the next round more attractive. This works once but creates a credibility deficit at the following round when the metrics are re-stated. Investors are increasingly sophisticated and conduct cohort-level due diligence.

Mistake 2: under-staffing the finance function until it is too late#

A finance function that consists of the CEO and a part-time bookkeeper cannot produce a credible 90-day plan, a scenario model and a board pack at the same time. Bringing in a fractional CFO (one or two days a week) is one of the most cash-positive hires a Series A startup can make, because the time saved on board prep and the quality of the cash forecasting more than offset the cost.

Mistake 3: confusing fundraising speed with fundraising quality#

A fast round closed at a stretched valuation can be worse than a slower round at a sustainable valuation. A down round at the next stage is a much harder conversation to have with the cap table than a flat or slightly down round today.

Mistake 4: ignoring the cash impact of working capital#

Growth in receivables (longer payment terms granted to enterprise customers), growth in deferred revenue treatment, and growth in inventory (for hardware or e-commerce companies) all consume cash that does not appear in net burn. A startup that doubles its enterprise customer base may see net burn improve while working capital silently consumes hundreds of thousands of euros of cash.

Most critical situations we see at Hayot Expertise do not result from a sudden catastrophe but from an undetected drift: revenues growing more slowly than costs, hires anticipated before demand confirmed, SaaS tools never audited, flattering MRR masking rising churn.

The underestimated risk: confusing gross burn and net burn. A startup with EUR 150,000 in monthly revenue and EUR 250,000 in outflows has a net burn of EUR 100,000 — not EUR 250,000. Calculating runway on gross burn leads to excessive caution that may block legitimate investment. Conversely, calculating runway on net burn flattered by exceptional inflows creates false security.

The 90-day plan is not a crisis plan — it is a management tool. Startups that deploy it at 15 months of runway have far more options than those who discover the need at 5 months. In our Paris practice, the startups that recover most cleanly are those that have built the muscle to run quarterly burn reviews even when cash is not under pressure. The reflex of revisiting cost structure every quarter is much cheaper to develop than the reflex of crisis management.

• Seasonal cash inflows: sectors with annual budget cycles experience peaks and troughs. Calculate on a trailing 3-month average, not the latest month alone.
• Hidden variable costs: seasonal spikes (Google Ads campaigns, trade shows, recruitment surges) temporarily inflate gross burn. Identify them to avoid compressing them at the wrong moment.
• Interest rates 2025-2026: short-term rates remain meaningful. A term deposit on excess cash can generate non-negligible yield — compare to the cost of a bridge.
• Strengthened investor due diligence: in 2026, investors require reconciliation between declared burn and 12 months of bank statements. Monthly accounting statements certified by a chartered accountant have become a fundraising prerequisite.
• CIR / CII delays in payment: in 2025-2026, several startups reported longer than usual delays in receiving the CIR refund. Pre-financing partners can bridge this delay, but the option needs to be activated in advance.
• Sector-specific churn pressure: e-commerce SaaS and HR tech segments saw above-average churn in 2025. Sectoral context should inform any plan.

• Calculate net burn for the past 3 months (not gross burn alone)
• Calculate real runway based on available cash, excluding restricted funds
• Classify all costs as fixed / variable / semi-variable
• Identify the 5 highest-leverage cost lines actionable within 30 days
• Build a 13-week rolling cash flow forecast
• Establish a formal monthly board reporting cadence
• Assess LTV/CAC ratio and payback period
• Document available alternative financing sources (BPI, bridge, RBF)
• Confirm monthly accounting statements are accurate and up to date
• Build base, downside and upside scenarios for the next 18 months
• Run cohort-level retention analysis at month 6, 12 and 24
• Identify and quantify France-specific cash levers (CIR, JEI, factoring, grants)
• Pre-agree communication scripts for board, team, investors and key suppliers

This article is for information purposes only. Financing, restructuring and cash management decisions must be made in light of your specific situation, legal documents and current market conditions. Hayot Expertise can support you in this analysis.

Sources. BPI France (bpifrance.fr), France Invest / AFIC (private equity panorama 2025), Banque de France (SME credit statistics), Pennylane (treasury management), Ordre des Experts-Comptables.