We ask for your total annual business-related expenses because deductions are one of the most important ways a tax return reflects the real economics of your year. If valid business expenses are omitted, taxable income can be overstated. If expenses are estimated loosely or unsupported, the deduction position becomes weaker and can create problems if the return is ever questioned.

The IRS places heavy emphasis on substantiation, particularly for categories such as travel, meals, gifts, and vehicle expenses. Publication 463 explains not only what kinds of expenses may be deductible, but also what records taxpayers should keep to prove the amount, time, place, and business purpose of those expenditures. That is why our organizer asks clients to total expenses based on receipts, bank statements, or credit card statements from the calendar year rather than sending rounded estimates.

This request also helps us keep the return internally consistent. For many clients, especially freelancers, performers, creators, and other service providers, the expense pattern is spread across multiple cards, multiple accounts, reimbursement arrangements, and sometimes multiple countries. If we only receive fragments, we cannot tell whether the tax return reflects the full year’s business activity.

We also specify that amounts should not be reduced to avoid reimbursement or agency duplication issues without explanation. If a taxpayer was later reimbursed for a business outlay, that fact still matters for classification and reconciliation. The goal is not just a big number. The goal is the right number.

Clients sometimes wonder why we will not simply accept estimates. The answer is that an estimated or rounded figure usually cannot be defended well and often hides more than it reveals. A clean total built from actual transactions is far more useful than a rough percentage or a best guess.

This question also serves a planning function. Annual totals tell us more than just what to deduct this year. They help us understand the business itself — how much was spent on travel, professional services, local transportation, rent, wardrobe, promotion, phone usage, or supplies.

The most helpful way to respond is to go account by account and categorize each transaction that relates to your business. In many cases, the easiest method is to use a spreadsheet and assign every business expenditure to a category before totaling the year.

In short, we ask for your annual business-related expenses because deductions must be complete, categorized, and supported. Accurate totals help us reduce taxable income properly, avoid unsupported estimates, and prepare a return that reflects the full year rather than a rough approximation of it.