Business Cash Runway Calculator
Estimate how long your current cash balance can fund a recurring monthly shortfall.
Cash runway is the number of months your available cash can cover a net cash burn. It is a quick decision-making metric, not a replacement for a 13-week forecast. Use realistic collections and outgoings rather than your most optimistic sales assumptions.
How to use the result
If the result is cash-positive, your expected inflows exceed expected outflows. If you have a positive cash burn, compare the runway with your realistic time to collect invoices, reduce costs, raise prices or arrange funding. The earlier you see a shortfall, the more options you usually have.
Include Corporation Tax, VAT, PAYE, loan repayments, credit-card settlements and any deferred supplier balances in your outflows. Leaving these out can create a falsely reassuring runway figure.
Related guides
Some links on this page are affiliate or referral links. If you apply through them we may receive a commission, at no extra cost to you. This does not influence our editorial recommendations — see our editorial policy and affiliate disclosure.
Information on this page is general guidance for UK small businesses and is not financial, tax or legal advice. Tax rules, allowances and product terms change. Always check current information with HMRC, Companies House or a qualified professional before making decisions.