What to Actually Hand Your Accountant Before Year End

Every year end, some clients hand over a shoebox and some hand over a folder that's already sorted. Both get their taxes filed, but the folder gets filed faster, with fewer follow-up calls and fewer surprises. The difference usually isn't how big or complicated the business is, it's just knowing ahead of time what actually gets used.

Bank and credit card statements, every account, every month

This is the backbone of the return. If a business account was open for any part of the year, its statements need to be there, even for months with little activity. Gaps in the statement history are one of the most common reasons a return gets held up, because reconciling a bank balance to a tax return with missing months is guesswork nobody wants to be doing under a deadline.

A profit and loss statement, not just a stack of receipts

If the business runs through QuickBooks or another bookkeeping system, a year-to-date profit and loss statement and balance sheet should come along with everything else. If the books were kept by hand or not kept consistently through the year, that's worth saying up front rather than discovering it mid-return. Bookkeeping cleanup before the return is normal work, not an emergency, but it's much easier to do in November than the week before a filing deadline.

Payroll records, if there's a single employee on the books

Even one employee brings payroll tax filings, W-2 preparation, and year-end reconciliation into the picture. If payroll was run through a separate service, the year-end summary from that provider needs to make it into the file. If payroll was handled informally, that's a conversation to have early, because it affects both the business return and what gets reported for the employee.

Anything that changed during the year

A new vehicle bought for the business, equipment purchased, a loan taken out, a new business bank account opened, a change in entity type, these all affect the return in ways that aren't always obvious from the numbers alone. The rule of thumb is simple: if something changed about how the business operates or what it owns, mention it, even if it seems unrelated to taxes. It's easier to rule something out than to catch it after the return is already filed.

• Bank and credit card statements for every business account, every month of the year
• A profit and loss statement and balance sheet, or the raw records if bookkeeping wasn't kept current
• Payroll summaries and W-2 or 1099 information for anyone paid during the year
• Records of any major purchases, loans, or changes to the business itself
• Last year's return, for reference and for catching anything carried forward

None of this needs to arrive perfectly organized. Strategic tax planning works best when it starts with a real picture of the year, not a guess, and a short conversation ahead of the deadline usually saves more time than it costs. If the books have gotten away from you this year, that's a normal place to start from, not a reason to put off the call.