TL;DR In 4 weeks you go from "I open the spreadsheet and have a panic attack" to "I look for 5 minutes and know where I stand". Week 1 separates business from personal and centralizes everything in one place. Week 2 creates a chart of accounts. Week 3 builds the forecast and automatic collection. Week 4 defines the ritual and the indicators. Without the week 4 ritual, everything turns to dust in 60 days.

Organizing the finances of an architecture firm has two problems. The first is technical, where to record, how to categorize, which tool. The second is behavioral, how not to abandon the system in week 5. Most tutorials solve the first and ignore the second. The result: six months later, the firm is more disorganized than before, now with dead spreadsheets scattered everywhere.

This plan covers both. 30 days, split into 4 weekly sprints.

Week 0: an honest diagnosis

Before you start, answer in 5 minutes:

  • Do you know how much you billed in the last 3 months? How much was left?
  • Do you have an idea of how much will come in over the next 30 days?
  • Do you know which clients are behind on payment, and how much?
  • Are your business and personal accounts separated?
  • Do you have a single place where you check the finances, or several?

If you answered "no" to 3 or more, you are the target audience for this plan. If you answered "yes" to all of them, you may need an indicator more than organization.

Week 1: separate and centralize

Goal: to have a single source of truth.

  1. Open a business account if you don't have one. Without it, all the rest is theater. Digital banks set it up in 48h, with no fees.
  2. Move business activity to the business account. The client pays the business, the supplier is paid by the business, the salary leaves the business.
  3. Set a fixed monthly owner's pay. You (the partner) receive an amount every day X. That is your salary. You never use the business card for anything personal again.
  4. Centralize the entries. It can be a spreadsheet, it can be an app, it can be a platform. What matters: one single place. No more "some entries are in the notebook and others in WhatsApp".

By the end of week 1: all of the firm's money goes through one account and is recorded in one place.

Week 2: categories and chart of accounts

Without a category, an entry is just noise. Basic chart of accounts for an architecture firm:

Inflows:

  • Project revenue (split by type: residential, commercial, consulting)
  • Construction/management revenue (if any)
  • Other (talk, course, etc.)

Fixed outflows:

  • Rent + condo fees + IPTU
  • Salaries + charges
  • Owner's pay + INSS
  • Software (Limify, AutoCAD, Revit, render, etc.)
  • Accountant
  • Internet, phone, electricity

Variable outflows:

  • Subcontractors (structural, plumbing, electrical)
  • External render
  • Printing and plotting
  • Travel and site visits
  • Marketing
  • One-off purchases

Tax outflows:

  • Simples Nacional / IRPJ / CSLL
  • ISS
  • Other

Categorize every entry from the last 60 days. It is tedious, do it in 2 sessions of 1h.

Week 3: forecasting and collection

The eye of the storm. Here you move from "looking at the past" to "controlling the future".

Inflow forecast: list all the active contracts and their pending installments over the next 90 days. Each installment becomes a row: contract, amount, expected date. Add it up by week. Done, you know how much should come in.

Outflow forecast: the same thing for the fixed cost (known dates) and an estimate of the variable cost based on the history of the last 3 months.

Automatic collection: if your platform allows it, turn on a reminder 5 days before and 1 day after the due date. If it is manual, schedule it on the calendar every week to check who is overdue. Collection that becomes a habit never becomes a problem.

Collection in Limify

Automatic reminders before the due date

In Limify, each installment becomes a scheduled boleto/PIX. The client gets a reminder before and after the due date, without you ever having to send "hi, remember the project?" again.

Try it free

Week 4: ritual and indicators

What kills every financial plan is abandonment. A fixed ritual prevents it.

Every Monday, 30 minutes:

  1. Check what came in and went out the previous week.
  2. Update the forecast for the next 8 weeks.
  3. Identify late payments and trigger collection.
  4. Note 1-2 actions for the week.

Every 5th of the month, 1 hour:

  1. Close the previous month: revenue, cost, margin.
  2. Compare forecast vs. actual.
  3. Update 3 key indicators: monthly revenue, margin %, cash balance.

Key indicators (KPIs) for an architecture firm:

  • Monthly revenue, revenue recognized in the month.
  • Operating margin, (revenue - costs) / revenue. Healthy: 25-40%.
  • Cash balance in months of fixed cost, current balance / monthly fixed cost. Healthy: ≥ 1.5.
  • Default rate, % of revenue overdue > 7 days. Healthy: < 5%.
  • Average acquisition cost, how much you spend on marketing/sales to close 1 contract.

How not to fall back into chaos

Three behavioral defenses:

  1. Block Monday 9-9:30 on the calendar forever. "Meeting with the firm's finances". Non-negotiable.
  2. Don't delegate too early. For 90 days, the finance partner runs the ritual. Then you can delegate, but only after knowing exactly what you are delegating.
  3. Review the system every 90 days. What is working? What is being ignored? Does the chart of accounts need new categories?

30 days later, you have reliable finances, updated weekly, with 5 clear indicators. In 90 days, it becomes a habit. In 180, it becomes a competitive advantage.

Next read: Cash flow for an architecture firm, a practical 4-column model.