Open the books on the first dollar
As soon as you decide to start, open a business bank account if possible and begin a simple list or accounting file. Record the date of every spending decision. If you must pay something personally, keep the receipt and record it as an owner contribution or a reimbursable expense.
The date the business actually begins operating is important. Costs before that date may be treated differently from costs after. Write the date and what makes it the start, such as the first sale or first opened location.
Sort costs into groups
A useful grouping is investigation costs, such as market research and travel to look at locations, formation costs, such as legal and filing fees, and pre-opening operating costs, such as advertising, training, rent and wages before opening. Equipment and inventory belong in their own groups. Label each group in your records.
The groups matter because tax rules may treat them differently. Having them sorted gives your preparer a head start.
Keep every supporting document
Retain invoices, contracts, proofs of payment, filing receipts, lease agreements and loan paperwork. A statement line does not explain what a payment was for. For fees paid to professionals, ask for an itemized invoice that identifies the work done.
If a business idea is abandoned, keep the records of what you spent. The treatment of costs for a business never started can differ from one that opened.
Watch for tax and registration items
Record fees paid for business licenses, permits, state registration and the employer identification number. Note any deposits for utilities or leases, which are usually assets, not expenses. If you funded the business with a loan, keep the note and statements.
Take photos of the premises, signage and any leasehold work as evidence of what was acquired and when.
Questions for your preparer
Ask how your startup costs should be tracked and whether any are treated as costs to spread over time. Ask how your first-year return handles inventory bought before opening, and whether to record owner contributions in a particular way. Bring your list of costs with dates and documents.
MCC Solutions can set up your books so the pre-opening items are separated cleanly from day-to-day activity.
A starter log layout
Create a sheet with columns for date, vendor, amount, what it was for, group, how paid, who paid and where the document is saved. Add one line the moment you spend, not a month later. By opening day you will have a clean history that can be loaded into your accounting software with minimal effort.
If you hire help before opening, record their pay carefully and ask about payroll duties, since employees before opening day still need to be set up properly.
Common questions
Can I deduct everything I spent before opening?
Not necessarily, and there are rules about how and when. Your preparer can explain the current rules.
Should I wait to open a bank account?
No. A separate account from the start makes the records far cleaner.
What if I paid costs with personal credit cards?
That is fine, but record them as owner contributions and keep the receipts and statements.
This guide is general information, not tax, legal or accounting advice. Rules, fees and due dates change; check with the IRS, the NJ Division of Taxation or a licensed professional for your situation.