Nonprofit bookkeeping fundamentals: the first 90 days

A new nonprofit has 90 days of low-volume activity before the books matter. Use those 90 days to build a foundation that scales. Skip them and the first year of audit-prep gets brutal.

Day 1–30: structure

• Open a dedicated bank account in the organization's name. No co-mingling with founder personal accounts.
• Choose accounting software — QuickBooks Online is the default. Aplos and Sage Intacct are options for larger nonprofits.
• Set up a chart of accounts that follows the standard nonprofit format: separate columns for unrestricted, temporarily restricted, and permanently restricted funds.
• Establish a basic expense policy — what can be reimbursed, who approves what, and how documentation gets attached.

Day 31–60: practice

• Book every transaction within a week of it happening. The discipline matters more than the precision in the first 60 days.
• Reconcile the bank statement monthly. Even at $1k/month of activity.
• Track every grant or donor commitment separately, with the restriction class and the period it covers.
• Document any volunteer time at fair-market-value rates if the work would otherwise be paid — this matters for Form 990 reporting later.

Day 61–90: review

• Run a first 'mini-close' for month three. Pull a statement of activities and a statement of financial position. Confirm they make sense.
• Identify any classification confusions and resolve them before they accumulate.
• Set the cadence going forward: monthly bookkeeping, monthly bank reconciliation, quarterly review with the board treasurer.

The biggest gift a nonprofit founder can give the eventual audit team is a clean first year. The biggest cost an audit team can charge is to clean up a messy first three years. The difference is decided in these 90 days.