How to set a first Google Ads budget from nothing
Work out your first search advertising budget backwards from the value of one sale rather than from a round number that merely feels survivable.
You have no history to work from
A first budget is guesswork dressed as a decision. You have no click cost history and no conversion rate and no sense of whether your category is cheap or brutal. So most businesses pick a round number. Twenty thousand rupees a month. Fifty thousand. The figure comes from what feels survivable rather than from anything about the market being entered.
That is survivable if you are honest about what the money is for. A first budget does not buy leads. It buys information. The question is the smallest amount that produces a readable answer and whether you can hold it steady long enough to read it.
What the budget excludes
Your media budget excludes everything that is not a click. It excludes the landing page those clicks arrive on. It excludes ad copy and creative work. It excludes conversion tracking setup. It excludes management whether that is an agency fee or your own evenings. Google bills media to your card directly. Service fees raised in India attract GST at 18% and that sits on top of the fee rather than inside it.
The budget also excludes control over what a click costs. You set a daily cap and a bid strategy. The auction sets the price. Legal and insurance and anything financial run expensive in India while most local trades and niche manufacturing do not. Check the range for your own terms in Google's keyword planner before committing to a number. If you would rather buy the management side with a written scope then search advertising as a productised service carries its rate on the service page.
Who should not start with search ads
Do not start here if nobody searches for what you sell. Put your category terms into the keyword planner. If monthly volume is near zero then search advertising has no demand to harvest and your budget drifts onto loosely related queries at full price. A genuinely new product sits in the demand creation business and search is the wrong instrument for it.
Do not start if your gross margin per sale is smaller than a plausible cost per acquisition. A business making a few hundred rupees on an order cannot survive a thousand rupee cost per enquiry and no clever account structure changes that arithmetic. Low margin high volume sellers usually belong on marketplaces first.
Do not start if enquiries will sit unanswered until the next morning. Search traffic is comparison shopping in motion. The buyer is contacting three suppliers and the slow one loses.
Working the number backwards
Start with the one action worth paying for. Usually a form submission or a call. Then price it. Take your gross margin on an average order and multiply by the share of enquiries you actually close. That is the most an enquiry can be worth. A fraction of it is your target cost per enquiry.
Now estimate the clicks behind one enquiry. You do not know your landing page conversion rate yet so assume something conservative and plan to replace it with real data. Multiply clicks per enquiry by the keyword planner's cost estimate for a cost per enquiry projection. Multiply that by the number of enquiries needed before the result means anything. Thirty is a reasonable floor. That total is your test budget and the window is several weeks rather than one.
Then spend it narrowly. One campaign. One tight group of terms that describe what you sell. Phrase and exact match only. A negative keyword list from day one. Concentration makes a small budget legible.
Reading the result honestly
The number that matters is cost per qualified enquiry and later cost per sale. Qualified means someone who could actually buy. Count it by hand in the first month if you have to.
The numbers that flatter are impressions and click-through rate and a falling average cost per click. All three improve when you bid on cheap irrelevant traffic. Conversion counts flatter too when the conversion is a page view or a tap on a phone number that never became a conversation. Read the search terms report weekly instead. It shows the queries you actually paid for.
The common mistake
The expensive error is splitting a small first budget across search and Performance Max and Meta and display at once. Each needs a floor of conversions before its bidding leaves a learning state. Four underfunded campaigns produce four unreadable results and you pay full price for data you cannot use. One campaign funded properly beats four funded politely.
The second version is switching everything off in week two because no sale has landed. You then repeat the same test next quarter from the same standing start. Decide the budget and the window in advance and sit on your hands until the window closes.
What a first budget actually buys
It buys one of three answers. Search works at a price you can live with. Search works but not at this price and the landing page or the offer needs fixing. Or the demand is not there and you stop. Nobody can promise which answer arrives and anyone who does is guessing with your money. Sizing the budget properly is how you get the answer before the money runs out.
This guide explains how something works. It is not legal, tax or financial advice, and rules change. Confirm anything regulatory with a qualified professional before you act on it.