Business Launch Stack

Startup launch cost calculator

Add one-time setup costs to a defined number of operating months. Use actual quotes and known commitments; the sample values are not recommended spending levels.

Base budget = setup + monthly costs × months. Contingency = base budget × contingency percentage ÷ 100. With $1,500 setup, $250 per month, six months and 15% contingency, the planning total is $3,450.

Illustrative starting values. Inputs stay in this tab. Download saves a plain-text record on your device; it includes any URLs you entered.

Source: https://businesslaunchstack.com/tools/launch-budget/ · Save the assumptions with this result.

Before you enter your numbers

  1. Choose the number of months you intend to fund.
  2. Separate purchases paid once from commitments that repeat each month.
  3. Use the reserve percentage for uncertainty; do not treat it as revenue or profit.

A worked comparison

With $1,500 setup, $250 monthly costs and six months to fund, the base is $3,000. A 15% reserve adds $450, bringing the planned total to $3,450. Extending to nine months raises the base to $3,750 and the total to $4,312.50 at the same reserve rate.

Keep these assumptions with your result

  • Planning period
  • Setup purchases
  • Monthly commitments
  • Annual bills due in the period
  • Reserve assumption
  • Items excluded from this estimate

Common questions

Is the total a cash runway forecast?

No. The total sums planned costs over the period you choose — setup plus monthly costs times months, plus your contingency percentage. A cash runway forecast needs more: opening cash, the timing of payments and receipts, and costs that change over time. This tool also does not determine filing requirements, tax obligations, or how much reserve is adequate for your business.

Where should an annual subscription go?

In the month it is due, at its full amount. For a cash budget, enter the payment when it leaves your account rather than spreading it across months — and never enter both the whole payment and its monthly equivalent, which counts it twice. This simple tool assumes constant monthly costs, so keep a separate note of annual bills and the months they land in.

How the tool works

Base budget = setup + monthly costs × months. Contingency = base budget × contingency percentage ÷ 100. With $1,500 setup, $250 per month, six months and 15% contingency, the planning total is $3,450.

What the result does not tell you

This does not determine legal filing requirements, tax obligations or adequate cash reserves. It does not forecast sales or profit. Include owner compensation, inventory and other cash commitments when relevant; obtain jurisdiction-specific costs from official sources.

Use the estimate responsibly

Replace the example values with records that cover the same period and scope. Save the input assumptions with your result so that another person can reproduce it. Change one assumption at a time to see why the result moves. Do not treat more decimal places as evidence that an estimate is more certain.

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