Somewhere in your first few months of setting up bookkeeping software, you’ll be asked to choose between cash and accrual accounting – usually in a settings menu, with no real explanation of what the choice actually changes. It’s a bigger decision than the casual placement suggests, because it affects how your financial statements read, what your taxes look like, and in some cases, what you’re legally required to do.
If you’re only now setting up bookkeeping for a new business, this is one of the decisions worth making deliberately rather than accepting the default – and if you’re still sorting out the difference between bookkeeping and accounting, accounting method is exactly the kind of decision that distinction shows up in.
Here’s what the two methods actually mean, and how to decide which fits your startup.
Cash Basis Accounting: Record It When Money Moves
Under cash basis accounting, you record revenue when you actually receive payment, and expenses when you actually pay them – regardless of when the work was done or the bill was issued. It’s the more intuitive method because it mirrors how your bank account behaves.
Example: You invoice a client for $5,000 in December, but they don’t pay until January. Under cash basis, that $5,000 is January revenue – not December’s – because that’s when the cash actually landed.
Advantages of Cash Basis
- Simple to understand and maintain, especially for founders without an accounting background
- Your books directly reflect your actual cash position
- Often simpler for tax purposes for qualifying small businesses
Limitations of Cash Basis
- Can distort the picture of your business’s actual performance in a given period
- Doesn’t track accounts receivable or accounts payable in the core financial statements
- Not compliant with GAAP, which matters for outside investment or an eventual audit
Accrual Basis Accounting: Record It When It’s Earned or Incurred
Under accrual accounting, you record revenue when it’s earned – when the work is done or the product delivered – and expenses when they’re incurred, regardless of when cash actually changes hands. This method matches revenue and costs to the period they actually relate to, which is why it’s the GAAP standard.
Example: Using the same scenario, that $5,000 invoiced in December would be recorded as December revenue under accrual accounting, even though the cash arrives in January – because the work was completed and earned in December.
Advantages of Accrual Basis
- Gives a more accurate picture of business performance in any given period
- Required for GAAP compliance, which investors, lenders, and auditors expect
- Tracks accounts receivable and accounts payable, not just cash on hand
Limitations of Accrual Basis
- More complex to maintain – requires tracking receivables, payables, and sometimes deferred revenue
- Can show a “profitable” month on paper even if the cash hasn’t actually arrived yet
Which Method Fits Your Startup?
Cash basis tends to fit:
- Very early-stage, low-transaction-volume businesses
- Freelancers and solo service providers with simple, immediate-payment work
- Businesses with no inventory and minimal receivables/payables
Accrual basis tends to fit:
- SaaS and subscription businesses (especially with revenue recognition and deferred revenue)
- Startups planning to raise institutional funding, where investors expect GAAP-compliant financials
- Any business with meaningful accounts receivable, accounts payable, or inventory
- Businesses that have crossed relevant IRS revenue thresholds requiring accrual for tax purposes
A Note on Deferred Revenue (Especially for SaaS)
If your startup collects annual payments upfront for services delivered monthly – a classic SaaS scenario – accrual accounting (specifically, deferred revenue tracking) isn’t optional in any meaningful sense. Recording a $12,000 annual contract as $12,000 of revenue in the month it’s paid, rather than recognizing $1,000 a month as it’s earned, badly misstates your actual monthly performance and will raise flags with any investor reviewing your numbers. This is exactly the kind of distortion monthly management reports built on the right method are meant to catch.
Can You Switch Later?
Yes, but it’s not something to do casually. Switching accounting methods has tax implications and, in some cases, requires IRS approval (via Form 3115) if you’re changing methods for tax reporting purposes after already filing under one method. It’s far easier to choose deliberately at the outset than to switch later.
A Real Example
A pre-seed SaaS company was using cash basis accounting and looked profitable most months – annual contracts landing as lump sums made revenue look strong. When their lead investor asked for accrual-based financials ahead of a funding round, the real picture looked very different: monthly recognized revenue was far lower once annual payments were spread across the service period, and the company had to restate several months of financials under time pressure during diligence.
The Bottom Line
Cash basis is simpler and fine for very early, simple operations. Accrual basis is more accurate, GAAP-compliant, and expected by investors and lenders – and it becomes close to mandatory once you have subscription revenue, receivables, or fundraising ambitions. If you’re unsure which applies to you, that’s a conversation worth having with a bookkeeper – one who can set up monthly bookkeeping built around the right accounting method – before your accounting software’s default setting decides it for you.
FAQs
- Is accrual accounting required by law for startups?
Not always – it depends on revenue thresholds and business structure. However, GAAP (required for many audits and expected by many investors) mandates accrual accounting, and businesses above certain IRS revenue thresholds must use accrual for tax purposes.
- Which method is easier for a first-time founder to manage?
Cash basis is simpler to maintain day-to-day since it mirrors your actual bank balance. Accrual basis requires tracking receivables, payables, and sometimes deferred revenue, which takes more diligence.
- Why do investors care about accrual accounting?
Accrual accounting matches revenue and expenses to the period they actually relate to, giving a more accurate picture of business performance – which is the standard investors and lenders expect.
- What is deferred revenue and why does it matter for SaaS startups?
Deferred revenue is money collected upfront for services not yet delivered – like an annual subscription paid in month one. Accrual accounting recognizes that revenue gradually as the service is delivered, rather than all at once.
- Can I switch from cash to accrual accounting later?
Yes, but it has tax implications and may require IRS approval via Form 3115 for tax reporting purposes. It’s best to choose the right method early rather than switch after you’ve already filed under one method.
Not sure whether your startup should be on cash or accrual accounting? Ask which method fits in a free consultation — we’ll look at your business model and tell you straight.