Solo Business Finance Setup Checklist (2026)

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Foundation — Entity & Identity 5 items

Form an LLC (or confirm existing entity)

Liability protection + business identity. Required for business banking.

Get an EIN from IRS.gov

Employer Identification Number — the business equivalent of a Social Security Number. Free, 5 minutes online.

IRS, state, D&B, and bank must show the same address for business credit to link properly.

Obtain a D-U-N-S number from Dun & Bradstreet

Required for business credit bureau reporting. Free registration at dnb.com.

Evaluate S-Corp election if annual profit exceeds $80K

Can significantly reduce self-employment taxes. Requires CPA guidance and payroll setup.

Banking Layer 5 items

Open a dedicated business checking account

Mercury or Relay — both free. This is the non-negotiable first financial step.

Open a separate tax savings account

Relay sub-account or Mercury savings. 25–30% of every deposit moves here automatically.

Set automatic transfer rules for tax allocation

Every deposit should automatically allocate — not require manual discipline.

Create a dedicated operating reserve account

Separate from taxes. Builds toward a 60-day operating buffer.

Redirect all client payment methods to business account

Update Stripe, PayPal, Wise, and any other payment processors. No business income to personal accounts.

Accounting Layer 4 items

Choose and set up accounting software

FreshBooks Plus for service billing. QuickBooks for S-Corps. Wave Pro for early stage.

Connect business bank account to accounting software

Bank feed should sync automatically. Every transaction categorized, not manually entered.

Set up chart of accounts appropriate for your business

Get this right from the start. Fixing it retroactively is painful and expensive (CPA time).

Invite your accountant or bookkeeper with appropriate access

Relay gives free bookkeeper access. FreshBooks Plus includes accountant invite.

Invoicing & Revenue 3 items

Send all invoices through accounting software (not email PDFs)

Creates a traceable record, enables automatic reminders, and gives clients a payment portal.

Set up recurring invoices for any retainer clients

FreshBooks Plus automates this. A retainer that requires manual invoicing every month is a system failure.

Enable automatic late payment reminders

Consultants who follow up systematically get paid faster. Automate the follow-up.

Tax System 4 items

Set four quarterly estimated tax calendar reminders

April 15, June 15, September 15, January 15. Missing these creates penalties on top of taxes owed.

Confirm quarterly allocation rate with your CPA

25–30% covers most solo operators. Your actual rate depends on bracket, deductions, and state taxes.

Log every deductible expense from day one

Home office, software, equipment, professional development — all deductible. Missing these costs you money.

Schedule an annual tax planning session with your CPA before December

Last-minute decisions (equipment purchases, retirement contributions) can significantly reduce your tax bill.

Business Credit 4 items

Free. Shows you what lenders see. Start the moment you have an EIN and bank account.

Apply for a starter business credit card

Chase Ink Cash or Capital One Spark. Pays in full monthly. Starts building payment history immediately.

Establish 2–3 net-30 vendor accounts

Quill, Uline, or similar — purchase and pay 30 days later. Reported to D&B, builds Paydex score.

Check Nav monthly and dispute any errors

Business credit report errors are common. Set a monthly calendar reminder to review.

Reserves & Stability 3 items

Build a 30-day operating reserve

First milestone. 30 days of business expenses in a dedicated savings account.

Build to 60-day operating reserve

The target. Two months of expenses means a slow month is a rounding error, not a crisis.

Review reserve adequacy annually

As your business grows, 60 days of expenses grows with it. Recalibrate each January.

Reporting & Planning 2 items

Run a monthly P&L close (15 minutes, last week of every month)

Reconcile bank, review income vs. expenses, note anything unusual. Catches errors before they compound.

Conduct an annual financial stack audit

Tools that fit at $30K/year may not fit at $150K/year. Re-run the stack builder each January.

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