How to manage your husband's business accounts without being an accountant

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You didn't sign up for this.
One Sunday evening, somewhere between dinner and the kids' bedtime, your husband handed you a carrier bag full of receipts, a spreadsheet that hasn't been touched since March, and the words: "I just need you to sort it out."
And now here you are.
You're not an accountant. You never wanted to be an accountant. But somehow the business finances have become your responsibility, and the self-assessment deadline isn't going to move itself.
If this sounds familiar, you're not alone. Behind an enormous number of UK small businesses, particularly in the trades, there's a partner quietly keeping the whole financial operation afloat and logging invoices, chasing payments and reconciling expenses. Making sure the taxman gets what he's owed.
This guide is for you. Not written in accountant-speak. Just practical, plain-English advice for managing a small business's accounts when you've never done it before.
First, understand what you're actually dealing with
Before you touch a single receipt, take stock of what the business actually needs. For most UK sole traders and micro-businesses, the financial admin breaks down into four areas:
Invoicing: Sending bills to customers and tracking whether they've been paid.
Expenses: Recording what the business spends money on, because legitimate business costs reduce the tax bill.
Payroll: If your husband employs anyone (including paying himself a wage), payroll needs to be tracked and reported to HMRC.
Tax: At the end of the year, all of the above feeds into a Self Assessment tax return. HMRC wants to know how much the business earned and spent, and will tax the difference (the profit).
That's it. Everything else is detail. If you can stay on top of those four things throughout the year, the dreaded January self-assessment becomes a straightforward exercise rather than a panic.
Get the paperwork out of the carrier bag
The carrier bag system is more common than anyone admits. Receipts from B&Q. A crumpled invoice from six months ago. A bank statement with coffee rings on it.
The first job is to get everything in one place and in some kind of order. You don't need a fancy system for this; a simple folder with twelve sections (one per month) works fine to start. As you go through receipts, ask yourself one question: Was this purchased for the business? If yes, it's an expense. If no, it goes in the bin.
Don't throw anything away yet. When in doubt, keep it. Sorting questionable receipts is a job for later.
Understand the difference between income and expenses
This is the foundation of all business accounting, and it's simpler than it sounds.
Income is money coming into the business which customers pay for the work.
Expenses are money going out for legitimate business purposes, materials, tools, fuel, insurance, phone bills, software subscriptions, work clothing (in some cases), and so on.
Profit is income minus expenses. That's what gets taxed.
The more legitimate expenses you record, the lower the tax bill. This is why keeping receipts matters; every unrecorded expense is money the business overpays in tax.
Common expenses for trades businesses include:
- Materials and supplies
- Vehicle costs (fuel, insurance, repairs), if used for work
- Tools and equipment
- Protective clothing and workwear
- Business insurance
- Phone and broadband (the business proportion)
- Advertising and marketing
- Accountant fees
Set up a simple system going forward
The biggest mistake is trying to do everything at once at year's end. A few minutes a week is far less painful than a full weekend in January.
Pick one day a week, Sunday evening works for a lot of people, and spend 20-30 minutes on the books. Log any invoices sent that week. Record any expenses. Check whether outstanding invoices have been paid. That's all.
If you keep up with it weekly, you'll always know roughly where the business stands financially. No surprises. No carrier bags.
For recording everything, you have options:
A spreadsheet works fine for very simple businesses. Income in one column, expenses in another, running totals at the bottom. Free, flexible, but requires discipline to maintain and is easy to make mistakes in.
Dedicated software removes the margin for error, automates the tedious bits, and makes it much easier to share with an accountant if needed. Many small business owners are put off by the cost, tools like Xero and QuickBooks start at £15-£25 per month, but there are free alternatives built specifically for small businesses and sole traders that cover invoicing, expenses, payroll and client management without a monthly subscription.
Get to grips with invoicing
If the business issues invoices, you need to understand how they work and how to track them.
A proper UK invoice needs to include:
- The word "Invoice" is clearly at the top
- A unique invoice number
- The date the invoice was issued
- The due date for payment
- The business name and address
- The customer's name and address
- A description of the work done
- The amount due
- Bank details for payment
- VAT number (only if the business is VAT registered)
Once an invoice is sent, it needs to be tracked. Has it been paid? If not, when is it due? Chasing overdue invoices is one of the most important, and most avoided, parts of running a business. A polite reminder a few days after the due date is standard practice and nothing to feel awkward about.
Don't ignore payroll
If your husband pays himself a regular wage or employs anyone else, payroll needs to be handled properly. This means:
- Calculating gross pay
- Deducting income tax (PAYE) and National Insurance, where applicable
- Issuing payslips
- Reporting to HMRC via RTI (Real Time Information), this needs to happen every time a payment is made
For a single employee or sole trader paying themselves, this is manageable with the right tools. Get it wrong, and HMRC will notice that they receive payroll data in real time.
Know when to call an accountant
You don't need an accountant for the day-to-day, but there are situations where professional advice is worth every penny:
- First year of trading — getting set up correctly from the start saves headaches later
- VAT registration — once turnover approaches £90,000, VAT registration becomes mandatory, and the rules get more complex
- Employing staff — payroll compliance gets more complicated with multiple employees
- Self-assessment — many people feel more confident having an accountant prepare and file the tax return, at least for the first year
A good accountant doesn't replace good records; they depend on them. The better organised your books are throughout the year, the lower your accountant's bill will be.
You're more capable than you think
Managing a small business's accounts doesn't require a finance degree. It requires consistency, a basic understanding of what goes where, and a system that works for you.
The people who end up in a panic every January aren't the ones who are bad at numbers, they're the ones who put it off all year. The ones who spend 20 minutes a week on it? They barely notice it.
You've already done the hardest part: you started.






