The Startup Finance Checklist: How to Get the Numbers Right From Day One

Most startups don't fail because the idea was wrong. They fail because the founder ran out of money before the idea had a chance to work. The finance checklist is how you make sure that doesn't happen to you.

There is a pattern that plays out in startups more often than it should.

A founder builds something good. Real customers. Real traction. The product is working. And then one day — sometimes month six, sometimes month eighteen — the money runs out. Not because the business was failing. Because the founder never built the financial visibility to see it coming.

Getting startup finances right from day one is not about having a CFO or a complicated financial model. It is about setting up the right structure — business account separated from personal, accounting software configured, GST obligations understood, unit economics calculated, burn rate tracked — before the money starts moving.

Here is the complete startup finance checklist.

1. Open a Dedicated Business Bank Account

This is the first financial step. Before any business income is received or any business expense is paid, open a bank account that belongs to the business and use it for nothing else.

Mixing personal and business finances creates three problems:

• Tax time becomes significantly more complex and expensive

• You lose visibility on whether the business is profitable

• It creates legal complications if the business is ever audited or disputes arise

Open the account on the same day you register your ABN. Use it for everything business-related from that point forward.

2. Set Up Accounting Software

Manual spreadsheets are fine for month one. After that, they create more work than they save. Set up accounting software from the start.

For Australian startups, the two standard choices are:

• Xero — cloud-based, strong integration with Australian banks, widely used by Australian accountants

• MYOB — another strong Australian option, particularly for businesses with more complex payroll requirements

Connect your business bank account to your accounting software from day one. This gives you real-time visibility on cash flow, makes GST reporting straightforward and saves significant time when you engage an accountant.

3. Understand Your GST Obligations

Goods and Services Tax (GST) is a 10% tax applied to most goods and services sold in Australia.

• You must register for GST once your annual turnover exceeds $75,000

• You can register voluntarily before that threshold

• Once registered, you collect GST on sales and can claim GST credits on business purchases

• GST is reported and remitted to the ATO through your Business Activity Statement (BAS) — typically quarterly

Register early if your customers are businesses that can claim the GST back, or if you are likely to cross the threshold in your first year. The accounting setup is simpler when GST is in place from the beginning.

4. Calculate Your Unit Economics

Unit economics are the financial building blocks of your business. They tell you whether your business model makes sense at scale — before you scale it.

The two numbers that matter most:

Cost to Acquire a Customer (CAC) The total amount spent on sales and marketing divided by the number of new customers acquired in the same period. If you spent $1,000 on marketing and acquired 10 customers, your CAC is $100.

Lifetime Value of a Customer (LTV) The total revenue a customer generates over the course of their relationship with your business. For a subscription business charging $50 per month with an average customer lifespan of 18 months, LTV is $900.

The ratio between LTV and CAC tells you whether your growth is sustainable. A healthy startup typically aims for LTV to be at least three times CAC. If it is less, you are spending more to acquire customers than they are worth.

Calculate these numbers as early as possible — even with rough estimates. They will shape every marketing and sales decision you make.

5. Set Your Pricing

Pricing is one of the highest-leverage decisions a founder makes and one of the least systematically approached.

The three common approaches:

Cost-plus pricing: Calculate your cost to deliver the product or service, add a margin. Simple but often undervalues what you offer.

Value-based pricing: Set the price based on the value delivered to the customer, not the cost to deliver it. Typically leads to higher prices and better margins.

Competitive pricing: Set prices based on what competitors charge. Useful as a reference point, dangerous as a primary strategy.

Know your costs. Know your value. Set a price that reflects both — then test whether the market agrees.

6. Build a 12-Month Cash Flow Forecast

A cash flow forecast is not a profit forecast. Profit tells you whether the business is making money. Cash flow tells you whether you will have money in the bank next month.

A startup can be profitable on paper and run out of cash — because revenue is coming in slower than expenses are going out.

Your 12-month forecast should include:

• All expected revenue, month by month — conservative estimate

• All fixed costs — rent, software subscriptions, salaries

• All variable costs — materials, contractor fees, marketing spend

• One-off costs — equipment, legal fees, product development

• The resulting monthly cash balance

Update it every month. The forecast is not there to be right — it is there to give you enough warning to act before a cash crisis arrives.

7. Understand Your Burn Rate

Burn rate is how much cash the business is spending per month above what it is bringing in.

If you have $120,000 in the bank and your monthly expenses exceed your monthly revenue by $10,000, your burn rate is $10,000 per month. Your runway — the number of months until you run out of money — is 12 months.

Know your burn rate. Know your runway. Review both monthly. The decisions you need to make when runway drops below six months are very different from the decisions you can afford to wait on when runway is eighteen months.

8. Engage an Accountant Early

An accountant who understands early-stage businesses is not a year-end expense. They are one of the first Key Players you should bring into the business.

A good startup accountant will:

• Help you choose the right business structure from a tax perspective

• Set up your accounting software correctly from the start

• Guide your GST setup and reporting

• Help you understand your financial statements

• Identify tax obligations and opportunities you would not find yourself

The cost of good financial advice at the start is a fraction of the cost of fixing financial problems created by not having it.

9. Separate Tax Obligations From Operating Cash

This is one of the simplest and most commonly ignored financial practices in early-stage startups.

When GST and income tax come due, many founders are surprised to find they have spent the money that was never theirs to spend. The solution is simple: every time revenue comes in, set aside the tax portion into a separate account immediately. Treat it as money that does not belong to the business.

It takes one minute to set up. It prevents one of the most stressful financial situations a founder can face.

10. Review Your Numbers Weekly

Not monthly. Not quarterly. Weekly.

Not every number — the core five:

1. Cash in the bank

2. Revenue this month versus last month

3. Expenses this month versus budget

4. Burn rate and runway

5. Outstanding invoices

Five numbers. Ten minutes. Every week. This single habit gives founders more financial visibility than most formal reporting processes.

Finance & Accounting. In the Deck. Get the Numbers Right From Day One.

The StartUp Deck is a physical toolkit — 150+ action cards covering every phase of building a business, from Foundation & Legal to Growth & Analytics. Structure you can hold in your hands. Every step covered. Nothing missed.

No synthetic advice. No fluff. No guessing.

• 150+ Core Strategy Cards — Every phase. Every decision. In order.

• 13 Key Players Cards — Who to hire, when and how.

• 50 Card Website Planner Pack — FREE bonus. Map your website before you build it.

• 6 Months Digital Resource Library Access — ProDesk launching soon in 2026.

• Gift-ready premium packaging — Ships next business day.

$249.00 AUD | Limited Run | 30-Day No-Questions-Asked Returns

Get Your Deck → thestartupdeck.com/products/the-startup-deck

Find more advice via the posts:

• The Ultimate Startup Toolkit — thestartupdeck.com/post/startup-toolkit

• The Complete Startup Checklist — thestartupdeck.com/post/startup-checklist

• The Startup Legal Checklist — thestartupdeck.com/post/startup-legal-checklist

• Startup Growth Metrics — thestartupdeck.com/post/startup-growth-metrics

  
  

Frequently Asked Questions

When should I open a business bank account? 

The same day you register your ABN. Before any business income is received or any business expense is paid. This is not optional — mixing personal and business finances creates significant problems at tax time and makes it impossible to accurately understand whether your business is profitable.

Do I need an accountant from day one? 

Yes — or at least much earlier than most founders engage one. An accountant who understands startups will help you choose the right structure, set up your accounting software correctly, handle your GST registration and save you from making decisions that create tax problems later.

What is the difference between profit and cash flow? 

Profit is revenue minus expenses over a period of time. Cash flow is the movement of actual money in and out of the business. A business can show a profit on paper while simultaneously running out of cash — because invoices are unpaid, payment terms are long or large expenses hit before revenue arrives. Tracking cash flow separately from profit is essential.

What accounting software should I use as an Australian startup? 

Xero is the most widely used by Australian startups and integrates well with Australian banks and most accountants' workflows. MYOB is a strong alternative, particularly for businesses with more complex payroll. Both are cloud-based and significantly better than spreadsheets for anything beyond the most basic financial tracking.

What is a healthy LTV to CAC ratio? 

Generally, an LTV:CAC ratio of 3:1 or better is considered healthy — meaning each customer generates at least three times what it cost to acquire them. A ratio below 1:1 means you are losing money on every customer you acquire.

How much runway should a startup maintain? 

Most experienced founders aim to maintain at least 12 months of runway at all times — meaning the business has enough cash to operate for 12 months at its current burn rate even with zero new revenue. When runway drops below 6 months, decisions need to be made quickly.

Stop Guessing. Start Building.

The startup finance checklist is not complicated. It is a specific set of structures, habits and numbers that give you the visibility to make good decisions. Set it up at the start and it runs itself. Skip it and you are flying blind.

Get Your Deck → thestartupdeck.com/products/the-startup-deck

$249.00 AUD | Limited Run | Ships Next Business Day | 30-Day Returns