How to Write a Budget for a Business Proposal. Business proposals take a lot of thought, analysis, time and effort to produce. Regardless of what you're proposing, chances are it's an investment that involves financial expense. Presenting a proposal with no consideration for your company or client's budget is a grave mistake. Always write a budget for a business proposal.
Know that when you're finished presenting a proposal, the first thing the managers making big decisions will ask is if it fits into their budget. You need to know how the proposal works into their finances and how they can make the investment worthwhile with the finances they are willing to allocate to the project. If you have no idea how much your proposed concepts would cost them, you are at a loss.
Think concrete in terms of what you're proposing. Do whatever it takes while drafting the proposal to realistically estimate the costs involved for what you're proposing from start to finish. It may be important to get estimates from vendors along the way.
Create an itemized list of budgeted items within your proposal, including an estimated total. Consider preparing more in-depth handouts that go along with the proposal, that further explain all costs associated with the investment.
Create a three-tiered budget if you are unsure of the funds available to support your proposal. A three-tiered system will give a low, medium and high-end estimate of what could potentially be spent on the project or endeavor. Offering alternate ways to achieve the same goal with make it a more realistic and "doable" endeavor in your company or client's eyes.
Do your homework. Think of the challenging questions you could be asked about your proposal, including the budget you're proposing. Plan ahead with smart answers and legitimate reasoning for why you're proposing what you are.