Before your tax appointment, gather your income records, expense receipts, payroll summaries, prior-year return, and mileage log. These five items cover the bulk of what your CPA needs to file accurately and find every deduction you're owed. Missing any one of them is the most common reason tax prep takes longer than it should — and costs more than necessary.

 

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Most small business owners in the Brainerd Lakes Area know tax season is coming. Fewer are ready when it actually arrives. Getting organized before you meet with your CPA at Lighthouse Advisors in Baxter, MN isn't complicated — but it does require working through a specific list, and that list changes depending on how your business is set up.

 

Here's what to pull together, by entity type, so your tax preparation checklist small business Minnesota filing moves quickly and cleanly.

 

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What Financial Records to Gather — By Business Type

The documents you need depend on how your business is structured. Here's what applies to each.

 

LLC (Single-Member or Multi-Member)

A single-member LLC reports business income on Schedule C. Pull together your full-year profit and loss summary, all business bank statements, and any receipts or invoices that support your expense deductions. If you have a multi-member LLC taxed as a partnership, you'll also need records to support each partner's share of income and expenses.

 

S-Corporation

S-corp tax prep requires more documentation than a basic Schedule C filing. In addition to your income and expense records, gather your officer compensation records, shareholder basis documentation, any loans between the business and shareholders, and records of distributions made during the year. Your Minnesota M8 (S-corporation return) requires its own set of state-level inputs — having these organized in advance saves significant time.

 

Sole Proprietor

Sole proprietors also file on Schedule C. Your records should include all 1099-NEC forms you received, a complete tally of business income, and receipts or categorized totals for deductible expenses — supplies, home office, equipment, subscriptions, and professional fees among them.

 

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Documents Small Business Owners Most Commonly Forget

Even well-organized business owners regularly arrive missing one of these.

• Mileage log. The IRS requires a contemporaneous record of business miles driven — date, destination, purpose, and miles per trip. A year-end estimate from memory isn't sufficient documentation.
• Prior-year tax return. Your CPA uses last year's return as a baseline. Without it, key carryforward items — losses, depreciation schedules, estimated tax credits — can be missed.
• Home office documentation. If you work from home, gather the square footage of your dedicated workspace and your total home square footage, along with utility costs and rent or mortgage interest.
• Receipts for large purchases. Equipment, vehicles, and significant capital expenditures require their own documentation — including date of purchase, cost, and business use percentage.
• Bank and credit card statements for all business accounts. Your CPA can reconcile these against your records, but they need access to the full-year statements.

 

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Minnesota-Specific Items You'll Need

 

State filing in Minnesota adds a layer that national tax software consistently handles poorly.

• Minnesota quarterly payment records. If you made estimated tax payments during the year, document each payment date and amount. Missed or misapplied payments are one of the most common sources of unexpected tax bills for Minnesota small business owners.
• Form M8 (S-corporations) or Form M4 (C-corporations). These are Minnesota's state business tax returns, filed separately from your federal return. Your CPA will prepare them, but supporting documentation — Minnesota apportionment data, if applicable — needs to be on hand.
• SUTA documentation. If you have employees, your Minnesota Unemployment Insurance (UI) account records should include quarterly wage reports and any adjustments made during the year.
• M1 inputs for individual owners. Income flowing through to your personal return will feed your Minnesota individual return (Form M1). Property tax statements, renter's credit eligibility, and any Minnesota-specific credits you may qualify for should be gathered alongside your federal documents.

 

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How to Share Your Documents Securely

You don't need to drive to our office in Baxter to hand over a folder of paperwork. Lighthouse Advisors uses the Canopy client portal — a secure, encrypted platform built specifically for accountant-client document sharing.

 

Here's how it works:

 

Step 1: Log In or Create Your Portal Account

Access your Canopy account at the Client Portal link. First-time users receive an invite from our office — if you haven't received yours, call us and we'll send it over.

 

Step 2: Upload Your Documents

Drag and drop your files or upload them individually. Accepted formats include PDFs, images of receipts, and exported spreadsheets. If you can attach a file to an email, you can use this portal.

 

Step 3: Let Us Know You're Ready

Once your documents are uploaded, send us a quick message through the portal or give us a call. We'll review what you've submitted, reach out if anything is missing, and get your return moving.

 

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Frequently Asked Questions

 

Q: What's the single most important document to have ready before a tax appointment?

A: Your prior-year return. It sets the baseline for your current filing, carries forward any losses or depreciation schedules, and helps your CPA identify year-over-year changes that might affect your liability.

 

Q: Does my mileage log need to be a formal document, or will a rough estimate work?

A: The IRS requires a contemporaneous record — meaning it should be kept throughout the year, not reconstructed at tax time. A simple log in a notebook or a mileage-tracking app is sufficient, but a year-end estimate is not.

 

Q: Do I need to file a separate Minnesota return for my LLC or S-corp?

A: It depends on your structure. Single-member LLCs typically flow through to your individual Minnesota M1. S-corporations file a separate Minnesota M8. Your CPA will prepare whichever applies — just make sure you have the supporting documentation ready for both.

 

Q: Can I upload documents to Lighthouse Advisors without making an in-person appointment?

A: Yes. The Canopy portal allows you to submit everything remotely. Upload your documents, and we'll review them and be in touch. Many of our Brainerd Lakes Area clients complete their entire tax prep process without a single office trip.

 

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Getting your records together before tax season doesn't have to be a last-minute scramble. The checklist above covers what the team at Lighthouse Advisors reviews for every Business Tax Return we prepare. Start with what you have, note what's missing, and reach out when you're ready.

 

Call us in Baxter or upload your documents through the Client Portal to get started. We'll take it from there.