How to Stay on Top of Invoicing, Expenses and Bookkeeping When You're Running a Business Alone
The honest, jargon-free guide for female founders who want to understand their numbers — without the overwhelm.
Let me tell you about a conversation I had recently with my very good friend.
She started a small property business last year — bought her first rental property, set up a limited company, felt proud and excited and ready. She's smart, capable, and absolutely brilliant at what she does.
Then the time came when her first submission to HMRC was due. Companies House needed her annual accounts. And she sat down at her laptop to do it herself, because everywhere she'd looked online it said: you can do this without an accountant.
And technically? That's true. You can.
But here's what those articles didn't tell her.
The people making those "it's easy, do it yourself!" YouTube videos already know what assets and liabilities mean. They already understand the difference between gross and net profit. They've already done it three times before and forgotten what it felt like not to know.
My friend sat there staring at a Companies House form asking her to list her assets, her liabilities, her equity — and she didn't know where to start. Not because she isn't intelligent. But because nobody had ever explained it to her in plain English.
Sound familiar?
If you're a female business owner running things solo — whether you're a life coach, a yoga teacher, an interior designer, a photographer, or any kind of service-based founder — the financial admin side of your business is probably the part you dread most. And you're not alone in that. Not even close.
So today I want to do something genuinely useful. I want to walk you through the basics — the actual basics, in plain English — so you feel less scared of your own numbers. Because here's what I truly believe: you are completely capable of understanding your own business finances. It just helps to have someone explain it without the jargon first.
Let's start with the words that trip everyone up
Before anything else, let's decode the language. Because half the overwhelm around business finance isn't the maths — it's the vocabulary.
Income / Revenue / Turnover — these all mean the same thing: the money that comes into your business. What clients pay you. Don't let the different words confuse you. They're interchangeable for most small businesses.
Expenses / Costs / Outgoings — the money going out. What you spend to run your business. Your website subscription, your software, your phone bill (if used for work), your home office costs. These are important because they reduce your tax bill.
Profit — what's left after you subtract your expenses from your income. This is what you actually pay tax on, not your total income. This is why keeping track of expenses matters so much.
Assets — things your business owns or is owed. Cash in your bank account is an asset. An invoice you've sent but haven't been paid yet (called a debtor) is an asset. Equipment you've bought for the business is an asset.
Liabilities — things your business owes. A bill you haven't paid yet. A loan. Your VAT liability if you're VAT registered. Liabilities are not scary — every business has them. They're just money that's owed outward rather than coming in.
Equity — this one confuses people most. Simply put, it's the value of the business to you as the owner. Your assets minus your liabilities. For a small limited company, it's essentially what would be left if you paid off everything you owed.
Keep these definitions somewhere handy. I promise they get more familiar every time you use them.
The three things you actually need to keep on top of
You don't need to become an accountant. But there are three core habits that make an enormous difference to how in-control you feel:
1. Send your invoices promptly — and follow them up
This sounds obvious, but it's the thing that slips most often when you're busy doing client work. The rule I'd suggest: invoice the same day you complete the work, or on a set day each week. Don't let it build up.
Use a simple system — FreeAgent, QuickBooks, even a basic spreadsheet — to track what's been sent, what's been paid, and what's outstanding. When an invoice is overdue, follow up. A friendly, confident email three days after the due date is completely normal and professional. Most late payments happen simply because nobody chased.
2. Record your expenses as you go, not in a panic at year end
Every business expense is a potential tax deduction. But only if you've recorded it. The habit I'd recommend: at the end of each week, spend ten minutes going through your bank statement and categorising anything business-related. It takes minutes weekly but hours if you leave it to pile up.
Keep a folder — physical or digital — for receipts. HMRC can ask to see them. For anything you're genuinely unsure about (can I claim this coffee? This course? This part of my phone bill?) — the general rule is: if it was wholly and exclusively for business purposes, you can usually claim it. When in doubt, note it down and ask someone.
3. Know your numbers — even just the basics
Once a month, sit down and answer three simple questions:
How much came in this month?
How much went out?
What's in my business bank account right now?
That's it. You don't need a complex spreadsheet or accounting software to start with. Those three numbers tell you whether your business is healthy, whether you're on track, and whether there's anything to worry about. Most small business owners who feel out of control of their finances have simply never built this monthly habit.
What about HMRC? A quick overview
If you're self-employed (sole trader), you'll need to complete a Self Assessment tax return each year. The deadline for online submissions is 31st January. You'll report your income, deduct your allowable expenses, and pay tax on the profit. HMRC's own website is actually quite good at walking you through this step by step — and yes, most sole traders with straightforward finances genuinely can do this themselves once they understand the basics.
If you have a limited company (like my friend), it's slightly more complex. You'll need to file both a Corporation Tax return with HMRC and annual accounts with Companies House. These need to follow a specific format — which is why the forms look intimidating the first time. But once you've understood the structure, it becomes much more manageable.
The important thing in both cases: keep your records throughout the year. The people who find tax time most stressful are almost always the ones who've left all their record-keeping to January.
My honest advice
Yes — you can do this yourself. Many small business owners do, and once you've done it once or twice, it becomes much less daunting. The first time is always the hardest, and that's true of everything.
But I also want to be honest: there comes a point where your time is worth more than the hours you're spending on this.
When you're spending Sunday evenings reconciling bank statements instead of resting. When invoices are going out late because you haven't had a moment. When the financial admin is quietly becoming a source of dread rather than something you feel on top of — that's usually the sign that it's time to hand it over.
Not because you can't do it. But because you don't have to.
I'm Lucia — a Virtual Assistant with a BSc in Applied Accounting and hands-on bookkeeping experience using FreeAgent and Sage 50. I support female founders in wellness, coaching and creative industries with their financial admin, invoicing, bookkeeping and general business support.
If you've read this and thought "I could really do with someone who understands both the admin and the numbers" — I'd love to have a chat. My discovery calls are always free and always completely no-pressure.
And if you're in the same position my friend was — staring at a Companies House form wondering what on earth it's asking you — feel free to drop me a message. Sometimes you just need someone to explain it in plain English. That's what I'm here for. 💛
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