Series A Fundraising Readiness: What Investors Really Check

Series A Fundraising Readiness: What Investors Really Check | Finance Department | Bookkeeping, Accounts & Virtual Finance Dept. | Exeter, Bristol & London

What Investors Really Check in Your Management Accounts

 

By the time a Series A investor asks for your management accounts, they’ve usually already decided they like the product, the market and the team. What happens next is where deals slow down, get re-priced, or quietly die: due diligence on the numbers.

Most founders find this stage more painful than it needs to be, not because the business is in bad shape, but because the accounts weren’t built with an investor’s eye in mind. Bookkeeping done for compliance and bookkeeping done for fundraising are two different disciplines.

Here’s what Series A investors are actually checking, and where SaaS and FinTech founders most often get caught out.

1. Do your MRR and ARR numbers actually reconcile?

This is the first test, and a surprising number of companies fail it.

Investors will ask for your MRR/ARR movement (new, expansion, contraction, churned), broken down month by month, and then check it against your bank statements and your accounting system.

If your reported ARR doesn’t tie back cleanly to actual cash received (allowing for billing cycles and payment terms), that’s not a minor formatting issue in an investor’s eyes. It’s a signal that your reporting isn’t trustworthy, and it invites them to question every other number in the deck.

What good looks like:

A monthly MRR bridge, produced consistently over at least 12–18 months, that reconciles to your general ledger without manual adjustment on the day of the ask.

2. Is your revenue recognition compliant?

SaaS revenue recognition under IFRS 15 (or ASC 606 if you have US investors or ambitions) isn’t just an accounting technicality.

It directly affects how much revenue you can report in a given period, especially for annual contracts, multi-year deals, or anything with implementation or onboarding fees bundled in.

We regularly see founders reporting revenue on a cash basis, recognising the full annual contract value the moment it’s invoiced, when it should be recognised over the service period. Investors and their auditors will catch this immediately, and restating revenue mid-diligence is one of the fastest ways to lose momentum in a raise.

What good looks like:

Revenue recognised in line with the relevant standard from day one, not retrofitted the month before diligence starts.

3. Cohort and churn data: not just a headline churn rate

A single blended churn number tells an investor almost nothing useful, and experienced Series A investors know it.

What they’re actually looking for is cohort-level detail: how each monthly or quarterly customer cohort behaves over time, whether churn is concentrated in a particular segment, price point, or acquisition channel, and whether it’s improving or worsening as the company matures.

This is also where net revenue retention gets scrutinised. A business with 90% gross retention but 115% net retention (driven by expansion revenue from existing accounts) tells a very different story than flat retention with no expansion, even if the headline churn number looks similar.

What good looks like:

Cohort retention curves by acquisition month or quarter, segmented by customer type where relevant, with a clear narrative on what’s driving the trend.

4. Gross margin — and what's included in cost of sales

SaaS gross margin looks simple until an investor starts asking what’s sitting in your cost of sales line.

Hosting and infrastructure costs are usually there. Customer support? Sometimes. Onboarding and implementation? Often missed. Payment processing fees for FinTech businesses? Frequently excluded when they shouldn’t be.

Inconsistent or overly generous gross margin reporting is one of the most common adjustments investors make during diligence, and if your reported margin drops meaningfully once costs are correctly allocated, that changes your valuation conversation, not just your accounts.

What good looks like:

A clearly defined, consistently applied cost of sales policy that an investor’s due diligence accountant would arrive at independently.

5. Customer concentration and contract quality

Investors will want to know not just how much revenue you have, but how defensible it is.

That means checking customer concentration (is more than 10–15% of ARR sitting with a single customer?), contract terms (are your biggest customers on rolling monthly terms with no notice period?), and how much of your growth is genuinely recurring versus one-off services or implementation revenue dressed up as SaaS.

What good looks like:

A clear breakdown of revenue by customer, contract length and renewal terms — ideally showing a diversified base with minimal reliance on any single account.

6. Burn rate, runway and the quality of your forecast

Your historical numbers get you through the first round of diligence.

Your forecast is what gets scrutinised in negotiation. Investors will stress-test your projected burn rate against your actual historical burn, and they’ll want to understand the assumptions behind future growth — not just the output.

A forecast built on a single, optimistic growth curve with no downside case is a common tell that the finance function hasn’t matured alongside the product. Investors expect to see base, upside and downside scenarios, with clearly stated assumptions on CAC, sales cycle length, and hiring plans.

What good looks like:

A rolling 18–24 month forecast with documented assumptions, updated monthly against actuals, showing you already run the business this way, not just for the raise.

7. The Rule of 40 and CAC payback: do the unit economics actually hold up?

Beyond individual line items, investors will sanity-check your overall efficiency: growth rate plus profit margin (the Rule of 40), CAC payback period, and LTV:CAC ratio.

These numbers don’t need to be perfect at Series A, but they do need to be honestly calculated and improving in the right direction, and you need to be able to explain, in plain terms, why they are what they are.

What good looks like:

Founders who can walk through their unit economics from memory, not just read them off a slide.

The pattern behind all of this?

None of the above requires a huge finance team.

What it requires is management accounts built to investor standard from well before the raise starts, not a scramble to reconstruct 18 months of clean MRR bridges and cohort data in the six weeks after a term sheet lands.

For SaaS and FinTech founders across Exeter, Bristol and London preparing for a Series A, the businesses that raise fastest and on the best terms are almost always the ones whose numbers needed no story to explain them. The accounts simply held up.

If you’re heading toward a raise and want a second pair of eyes on whether your management accounts would survive investor diligence, we’d be glad to take a look.

Do You Know How Many Clients Your Business Needs to Break Even? Download this free Break-Even Calculator to find out now.

Would you like help preparing for Series A? If you want to review whether your management accounts would survive investor diligence, we’d be glad to take a look.

 

The Finance Department provides outsourced bookkeeping, management accounting, and fractional Finance Director services for growing SaaS & Tech businesses across the UK. They are CIMA-accredited and Xero certified.

Book a no-obligation discovery call and find out how better financial information can grow your business — calmly, confidently, and sustainably.

 

Call: 01392 495483
Learn more at: www.finance-department.co.uk
Book: your free 30-minute Finance Diagnostic call and let’s chat.

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